Issue: 19281001

Monday, October 1, 1928
October 1928
4
True
113
Thursday, December 25, 2014

Articles
cover
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Popular Science
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PopularScience_19281001_0113_004_0001.xml
advertisement
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1_1
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ROGERS: BRUSHING LACQUER
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ROGERS
BRUSHING LACQUER
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PopularScience_19281001_0113_004_0002.xml
advertisement
1
1
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CADILLAC MOTOR CAR COMPANY
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CADILLAC MOTOR CAR COMPANY
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PopularScience_19281001_0113_004_0003.xml
masthead
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2
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WHAT IS NEW THIS MONTH
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PopularScience_19281001_0113_004_0004.xml
tableOfContents
2
2,3
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Table of Contents for October
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PopularScience_19281001_0113_004_0005.xml
advertisement
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4
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THE F.H. SMITH Co.
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THE F.H. SMITH Co.
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PopularScience_19281001_0113_004_0006.xml
article
4
4,5,6,7
LEADING ARTICLES
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How to Quit Worrying Over Money Matters
A Service for Readers
To Help You Get Ahead
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WALLACE AMES
"I'M GLAD I've got a good job," thought Warren Cady, as he stayed overtime at the office the afternoon of pay-day to go over his bills and draw checks to cover them. Let's look over Warren's shoulder and see what his monthly crop of bills is. Here is the itemized list of the checks he drew: Monthly mortgage and interest payment Gas, electricity, milk, etc Mrs. Cady's monthly allowance .
PopularScience_19281001_0113_004_0007.xml
advertisement
5
5
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THE PHOENIX MUTUAL LIFE INSURANCE COMPANY
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THE PHOENIX MUTUAL LIFE INSURANCE COMPANY
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PopularScience_19281001_0113_004_0008.xml
advertisement
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6
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Advertisements
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PopularScience_19281001_0113_004_0009.xml
advertisement
6
6
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The MOLLÉ Company
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The MOLLÉ Company
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PopularScience_19281001_0113_004_0010.xml
advertisement
6
6
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UNITED STATES MORTGAGE BOND CO.
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UNITED STATES MORTGAGE BOND CO.
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PopularScience_19281001_0113_004_0011.xml
advertisement
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7
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Advertisements
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PopularScience_19281001_0113_004_0012.xml
article
8
8
LEADING ARTICLES
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Do Your Radio Tubes Last?
Life of Tubes Is One of the Features That Is Determined in Institute's Tests
Popular Science Monthly GUARANTEE
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Alexander Senauke
IF FEW people recognize just how important is the work of vacuum tubes, they all do realize that the life of these radio essentials is often entirely too brief. The causes for the short life of some tubes have been definitely determined, but let us see what the vacuum tube does while it is living.
PopularScience_19281001_0113_004_0013.xml
advertisement
9
9
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MASON FIBRE COMPANY
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MASON FIBRE COMPANY
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PopularScience_19281001_0113_004_0014.xml
article
10
10
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Our Readers Say—
Can’t Please Everybody
Well, Why Not Use Boxes?
He Was on a Vacation
Who Can Use These Autos?
A Plea for the Apes
They’d Fly a Good Race
Every Suggestion Helps
C. F. B. is in for It
Why Dollars Die Young?
A Record Challenged
Help! Give Him Air!
Yes, It Would
We Blush with Pride
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"I AM glad to reach the end of your articles on ‘Dick Byrd—Adventurer.’ I am surprised that a magazine of the authority of POPULAR SCIENCE MONTHLY should stoop to become a part of the Byrd hero-worship ballyhoo. He must have talked you into those articles just like he talks nonthinking business men to finance his hair-brained flights.
PopularScience_19281001_0113_004_0015.xml
advertisement
11
11
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GILLETTE SAFTY RAZOR CO.: Gillette Blade
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GILLETTE SAFTY RAZOR CO.
Gillette Blade
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PopularScience_19281001_0113_004_0016.xml
advertisement
12
12
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A. H. Grebe & Company, Inc.
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A. H. Grebe & Company, Inc.
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PopularScience_19281001_0113_004_0017.xml
masthead
13
13
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Popular Science
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PopularScience_19281001_0113_004_0018.xml
article
13
13,14,15,150
LEADING ARTICLES
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Dirigibles Make New Bid to Rule THE Air
Supremacy of Planes Challenged as Europe Prepares Flying Liners for Trans-Atlantic Service, and U. S. Navy Lays Plans for Two Huge Lighter-than-Air Ships
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H. C. DAVIS
THE destruction in the Arctic of General Nobile's comparatively small semirigid dirigible balloon the Italia emphasizes the fact that there is in the world today only one great Zeppelin-type dirigible in commission. That is the silvery veteran Los Angeles, built for us by Germany as our trophy of the war.
PopularScience_19281001_0113_004_0019.xml
article
16
16
LEADING ARTICLES
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New Air Lines Link All Americas
Stupendous Project, Equal to the Greatest in Europe9 Will Make the Continents Hours Instead of Days Apart
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GROVER C. MUELLER
NOW Central America and the West Indies are to be linked to the United States by air. Contracts for carrying U. S. air mail to Haiti, Santo Domingo, and Porto Rico over one new route and to Mexico, Central America, and Panama over another have just been awarded to Pan-American Airways, present operator of a Key West-Havana airline, and this company’s fourteen-passenger monoplanes, largest ever built by the Fokker Company, will shortly inaugurate mail and passenger service.
PopularScience_19281001_0113_004_0020.xml
article
17
17,18,153
LEADING ARTICLES
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Secrets of New Color Movies
Twenty-five Years of Experiment at Last Make Home Screen Pictures in Natural Hues a Simple Process for Everyone
A Blotter That Erases Ink
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ROBERT E. MARTIN
EPOCH making inventions usually turn out to be astonishingly simple. All the revolutionary 4 developments of radio, for ex ample, hinge on the discovery of what takes place when three simple pieces of metal are inclosed in a glass bulb and the air is pumped out.
PopularScience_19281001_0113_004_0021.xml
article
19
19
LEADING ARTICLES
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The Colorado Spanned at Last
Engineers Ingeniously Reach Across a 500-Foot Canyon to Bridge a Tourist Highway into a Painted Wonderland
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ELLSWORTH BENNETT
WITHIN a few weeks motorists will drive over the first bridge ever flung across the canyon of the Colorado River. Looking down between the sheer walls of Marble Gorge to the turbulent stream 500 feet below, tourists in northwestern Arizona will witness a combined spectacle of scenic grandeur and engineering achievement unsurpassed anywhere.
PopularScience_19281001_0113_004_0022.xml
article
20
20,21,174
LEADING ARTICLES
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South Sea Colony Facts About Reveals IN Heredity
THE Amazing Adventures of Nine "Robinson Crusoes" and Their Native Wives on an Uninhabited South Sea Island Have Altered Age Old Scientific Beliefs. From Their Descendants There Dr. H. L. Shapiro, Eminent Anthropologist, Has Discovered Upsetting Facts About the Results of Marriage Among Relatives
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EDWIN W. TEALE
RETURNING from one of the strangest quests in modern science, Dr. H. IL. Shapiro. anthropologisL at the American Museum of Natural History, brought to America, not long ago, fresh facts about the mysterious laws that govern the birth and destiny of human beings.
PopularScience_19281001_0113_004_0023.xml
article
22
22,23,24,167
LEADING ARTICLES
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John Kenlon—Fire Fighter
The Thrilling Story of Modern Combat with Flames, as Seen by New York's Great Veteran Chief
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HENRY MORTON ROBINSON
FIRE in mid-ocean! A flame-crazed bolt of lightning had just splintered the topgallant mast of the clipper ship, Santa Anna, reeling up the east coast of South America after a frightful passage around Cape Horn. Exhausted from her battle with icy hurricanes, the Santa Anna now rolled like a blazing barrel in an Antarctic thunderstorm twelve hundred miles off her course.
PopularScience_19281001_0113_004_0024.xml
article
25
25,26
LEADING ARTICLES
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Magic Cell Works New Marvels
An Expert Tells How Photo-Electric "Eyes" Bring Television Nearer and Promise to Harness the Sun
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E. E. FREE
ONE sunny afternoon a few weeks ago a young man stood on the roof of a building in New York City waving a tennis racket in the air. He might have been doing his daily dozen, but he wasn’t. He was exercising an eye—not his own eye, but the newest eye of science; the one that promises to make television really useful.
PopularScience_19281001_0113_004_0025.xml
article
27
27,159
LEADING ARTICLES
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A Mystery of the Blood Solved
Experiments Show That the Heart Pumps Five and One Half Quarts Through the Human Body Every Minute
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GEORGE LEE DOWD
A PUZZLE of physiology, three centuries old, was solved the other L day when four physicians of the University of Louisville. School of Medicine, Kentucky, succeeded in measuring the output of the human heart. The marvelous little engines that drive our bodies, they found, pump blood at the rate of about five and one half quarts every minute! This discovery was the result of experiments by Drs. W. F. Hamilton, s J. W. Moore.
PopularScience_19281001_0113_004_0026.xml
article
28
28,29
LEADING ARTICLES
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Sea Water Runs Strange Dynamo
French Scientist Demonstrates How Electric Power Can Be Produced by Harnessing the Ocean s Varying Temperatures
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EDWIN KETCHUM
POWER from the sea—power in vast, incalculable quantities—is the glittering promise held out by Georges Claude, famous French physicist with revolutionary industrial successes already to his credit. For at an experimental plant on the Meuse River, near Liege, Belgium, Claude has just reported that he is successfully drawing forty kilowatts of electric power directly from the water's natural heat.
PopularScience_19281001_0113_004_0027.xml
article
30
30
LEADING ARTICLES
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"Carved" Stone Cast in Molds
New Art and Industry Produces Decorations For Buildings Which Defy Time and Elements
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WYATT BRUMMITT
TIME was, the creation of architectural ornament was wholly a matter of the mason’s trusty chisel and stubborn stone. But scientific development in cement and concrete has produced a stone which may be given any shape, texture, or color without reference to a chisel until the final dressing.
PopularScience_19281001_0113_004_0028.xml
article
31
31,32,160
LEADING ARTICLES
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Windows—the Eyes of the House
Here Are the Details, Advantages, and Weaknesses Sashes, Casements and Plain, Plate and Ultra-Violet Glass
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JOHN R. McMAHON
KING Rollo was a merry old soul, but he needed cash, and the royal treasurer said: “Sire, there is none, and we’ve already taxed the daylights out of the people." “Is that so? Ha! I have it!" chuckled the gay monarch. “I'll tax their daylight! Put five doubloons on every window in a man’s house.
PopularScience_19281001_0113_004_0029.xml
article
33
33,162,163
LEADING ARTICLES
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Electric "Suns" Fight Disease
Powerful UltraViolet Lights, Which Can Be Used in the Home, Are the Latest Tools of Physicians
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THOMAS ELWAY
A PUBLIC-SPIRITED English man, Lieutenant Colonel G. S. Hutchison, took five poor pit boys from British coal mines on a "sunbath" outing to Switzerland, where the natural sunlight has long been known to he exceptionally beneficial to health. The lads grew amazingly strong. but obviously this expedient was impossible for all the boys and men deprived of sunlight by their work underground.
PopularScience_19281001_0113_004_0030.xml
article
34
34,35,36,154,155,156,157
LEADING ARTICLES
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ON TIME IN THE FOG
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LEO F. CREAGAN
MARLEY never did learn the identity of the chief conspirator in the plot to humiliate Old Bill Stone, the locomotive engineer, but just the same he fired the culprit. He couldn't have missed him, for he butted an entire department into an engine pit and chased every grimy one of them to the timekeeper's office for his money. No further investigation was necessary.
PopularScience_19281001_0113_004_0031.xml
article
37
37,38,164,165
LEADING ARTICLES
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They're Farming the Ocean Now
Government Achieves Amazing Results Breeding and Raising Fish Just as Farmers Do Livestock
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BOYDEN SPARKES
THAT expanse of ocean you see from the deck of a liner is not the wet desert it seems, but a rich, desert seems, but a rich, rolling meadow, teeming with life. It is a meadow that covers more than three-fifths of the world, everywhere more than a thousand feet deep, with a green, energy-producing pasturage for uncounted forms of life.
PopularScience_19281001_0113_004_0032.xml
article
39
39,170,171,172
LEADING ARTICLES
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What Is an Invention Anyway?
Mysteries of the Patent Office Explained—Why Many a Valuable Idea Cannot Be Protected and How Ignorance May Cost Fortune
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P. A. CARMICHAEL
MILES from a garage on a little traveled road with a flat tire. Miles, also, from the nearest filling station. What was he to do? He had tire patches and cement, but what good were they without a pump? Presently a farm boy came along who carried a little pump to rent for fifteen cents.
PopularScience_19281001_0113_004_0033.xml
article
40
40,157
LEADING ARTICLES
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Institute Exposes New Radio Gyps
Winners of Radio Czar Contest Prizes
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ALEXANDER SENAUKE
SWINDLERS are finding radio, mysterious to most people, a fertile field. Thou sands of radio listeners have been misled in the pur chase of buried antennas purporting to prevent static, bring in more distant stations, and get rid of interference.
PopularScience_19281001_0113_004_0034.xml
article
41
41
LEADING ARTICLES
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Shall I Buy or Build a Radio?
The Answer Depends on You, But Here Are the Facts to Guide You
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ALFRED P. LANE
"WOULD you advise me to build a radio receiver or to buy a regular factory built set?" To that question, asked us many times daily, there can be no definite answer. It depends altogether on the individual. Some men would never consider building their own receivers.
PopularScience_19281001_0113_004_0035.xml
article
42
42
Hints for the Beginner in Radio
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Why Choke Coils Are Needed
A Loudspeaker Cord That You Can Walk On—Adjusting the Voltage in Eliminators—A Good Method of Sharp Tuning
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YOU can operate a loudspeaker at a point some distance away from the radio receiver without in any way impairing the results. In fact. the only problem is that of running the necessary wire. If the radio receiver and the loudspeaker are on the same side but at different ends of the same room, the wire can, of course, be run along the baseboard.
PopularScience_19281001_0113_004_0036.xml
article
42
42
Radio
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What Choke Coils Do
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EARLY types of radio receivers rarely included any choke coils in their construction. Modern sets, both factory-built and home-assembled, make considerable use of them. choke coil is not a new piece of apparatus. It was well knowTn long before broadcasting, but the importance of the choke coil in forcing the electric currents in the radio receiver to keep to certain definite paths was not fully appreciated until tone quality came to be so all-important.
PopularScience_19281001_0113_004_0037.xml
article
42
42
Radio
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A B C's of Radio
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RESISTANCE units are commonly rated by the number of watts of current they will safely dissipate in the `form of heat. While this method of rating allows you to figure the safe current-carrying capacity of the resistance, it would be better for the radio amateur if the manufacturers would specify the current-carrying capacity in milliamperes.
PopularScience_19281001_0113_004_0038.xml
article
42
42
Radio
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Adjustable High Resistance
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IN BUILDING a B-eliminator or a power amplifier unit combined with a B-eliminator, there are undoubted advantages in having adjustable resistances so that the various voltages can be changed to suit conditions. However, the difficulty in most circuits providing for adjustable voltages is that there is nothing prevent the adjustment being carried too far.
PopularScience_19281001_0113_004_0039.xml
article
42
42
Radio
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How to Tune Sharply
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RADIO fans who are interested in getL ting the last possible fraction of strength out of a distant signal may well take a tip from the expert photographer. When the photographer focuses the image on the ground glass of his camera he rotates the adjusting knob back and forth so that the lens moves first beyond and inside the point where the picture is sharp.
PopularScience_19281001_0113_004_0040.xml
article
43
43,163
LEADING ARTICLES
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Radio Hails the Dynamic Speaker
Powerful Electromagnet Operating Directly on a Moving Coil Reproduces Music with Greatly Increased Fidelity
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JOHN CARR
ANOTHER revolutionary change in radio loudspeakers is impending. The cone type speaker rapidly drove the ordinary horn type into oblivion. Now the still newer dynamic cone threatens to drive out the cone. The cone replaced the horn because it reproduced music more faithfully.
PopularScience_19281001_0113_004_0041.xml
article
44
44,45,152
LEADING ARTICLES
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A Play That Made Football Over
Famous Gridiron Star Explains How the Forward Pass Has Given to the Game a New Strategy and Greater Thrills
Science Slashes Coal Bills
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EDWIN B. DOOLEY
THE whistle sounded for the second half with Cornell and Dartmouth deadlocked 14 to 14. Fifty thousand fans had howled themselves into football hysteria a few minutes earlier as Cornell had battered its way by sheer power to two touchdowns. Molinet, the Cuban fullback, had smashed our line to pieces with his catapult plunges.
PopularScience_19281001_0113_004_0042.xml
article
46
46,47,168,169
LEADING ARTICLES
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Making Things Fit that Don’t Fit
Engineers Fight Against Odd Sizes in Hardware, Film, Masonry, Plumbing, China, and Even Bedsheets
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HYATT E. GIBSON
AMAN veiled into the ’phone: “This is Fire Chief of Millville! Send help quick ! Big fire getting away from us. For God’s sake, send all you got!” “Sure thing!” shouted back the firehouse official in the neighboring town of Orono. “Our engine and truck will be with you in twenty minutes. I’ve shot the alarm.
PopularScience_19281001_0113_004_0043.xml
article
48
48
Engineering
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Stone Banks for the Mississippi
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A BILLION - DOLLAR job that will require three years for completion is the riprapping of the lower Mississippi River, now well under way following last spring's devastating floods. It is the most stupendous engineering project of the kind.
PopularScience_19281001_0113_004_0044.xml
article
48
48,158
Aviation
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New Test Questions on Aviation
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1. "Who was the first man to fly across the English Channel? When was it done? 2. Which type of craft is the older, heavier-than-air or lighter-than-air? 3. What country leads in air mail development? 4. How is a parachute opened? 5. How does the fuel consumption, in miles per gallon, of a light airplane compare with the fuel consumption of a light automobile? 6. What is an airway radio beacon?
PopularScience_19281001_0113_004_0045.xml
article
49
49
LEADING ARTICLES
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A Magic City from a Swamp
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FROM a vast 41-acre waste of mos quito-infested New Jersey swamp land, just across the Hudson River from New York City, soon may rise a great city of industries and homes, larger in area than New York herself. A project recently announced by the Regional Plan of New York and pictured on this page calls for streets and skyscrapers, parks and waterways, flying fields and residential districts.
PopularScience_19281001_0113_004_0046.xml
article
50
50,51
New Devices for the Home
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New Tools That Make Home Tasks Easy
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PopularScience_19281001_0113_004_0047.xml
article
52
52
New Processes and Inventions
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Ideas Put To Work
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Burglar - Proof Doors, Steel Gloves to Guard Fingers of Workmen, New Life Preservers, Rubber Toothbrushes.
PopularScience_19281001_0113_004_0048.xml
article
52
52
New Processes and Inventions
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Bristleless Toothbrush
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Semisoft, wedge-shaped little fingers that won't come out get all around the teeth and massage the gums. Cleaning the brush is simple and easy and better sanitation will be a result.
PopularScience_19281001_0113_004_0049.xml
article
52
52
New Processes and Inventions
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Handy Tool of Ten Uses
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A valuable friend is this new combination of hammer, with nail puller, screw driver, corkscrew, knife sharpener, scale, ruler, table of weights and measures and can and bottle opener
PopularScience_19281001_0113_004_0050.xml
article
52
52
New Processes and Inventions
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A Garden Hose Holder
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Any ordinary nozzle fits in this hinged device which is adjustable to any position from vertical to horizontal. Its standard ends in a long slender spike, which can easily be driven down by hand power without marring your lawr
PopularScience_19281001_0113_004_0051.xml
article
52
52
Unusual Facts and Ideas
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Detroit’s New Giant Boulevard Lights
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With 5-lamp ornamental lights Washington Boulevard takes from State Street, Chicago, the honor of the world’s best lighted street. Each pole has 10,500 candlepower. In one of the lamps is the daughter of A. F. Dickerson, of the General Electric Company, who helped design them.
PopularScience_19281001_0113_004_0052.xml
article
52
52
New Processes and Inventions
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A Burglar-Proof Door
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This door is kept bolted while the lady of the house opens the swinging, hinged sash and talks with the stranger through the protecting iron grille which is in the outer face of the door. Between the grille and the sash is a bronze screen, an additional convenience.
PopularScience_19281001_0113_004_0053.xml
article
52
52
Automobiles
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New Device That Foils the Motor Car Thief
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The thief who drives off in this parked car is in for a surprise. The owner has turned the license plate to a vertical position with a lever, which is then locked so that no one can restore the plate to its proper position without the key. In Australia, where the device is used, the policeman knows what a vertical plate means.
PopularScience_19281001_0113_004_0054.xml
article
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52
New Processes and Inventions
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Mechanical System That Sorts Freight Cars
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Pressure of buttons and electric controls operate the $4,000,00C car classification system recently installed in the Boston yards ol the Boston & Maine Railroad, replacing many trainmen. President Hannauer, of the road, is seen pointing to one section of the system at the ceremonies which lately inaugurated its use.
PopularScience_19281001_0113_004_0055.xml
article
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53
New Processes and Inventions
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Machine Fills Lighter
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A coin in the slot operates this novel fuel station for pocket lighters which a Frenchman has just invented. The devices are being installed in tobacco shop8 and in many public buildings.
PopularScience_19281001_0113_004_0056.xml
article
53
53
New Processes and Inventions
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Fast Electric Paint Remover
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This new device speeds the work of clearing off old paint to provide a perfect surface for repainting. The long cord is run from a socket. The block, which contains a heating element, softens all the paint so it can be readily scraped off, as at the right, but the wood is not burned nor even scorched.
PopularScience_19281001_0113_004_0057.xml
article
53
53
New Processes and Inventions
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New Life-Saver
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The impact as it strikes the water opens the pouch of the device illustrated above and at the left, releasing the floats that hold up the rescued man. He is hauled in by the cord.
PopularScience_19281001_0113_004_0058.xml
article
53
53
New Processes and Inventions
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Two-Filament Miner’s Lamp
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[no value]
If one filament fails, the miner simply turns a switch and throws the second filament into instant service, thus avoiding loss of time in obtaining a new lamp.
PopularScience_19281001_0113_004_0059.xml
article
53
53
New Processes and Inventions
[no value]
Steel Safety Glove
[no value]
[no value]
[no value]
[no value]
This new glove, woven from strands of steel, was invented by a physician employed by a large meat packing concern where the accident department records showed many cut hands and fingers. It provides excellent protection, yet is said to allow ample freedom of movement at the same time.
PopularScience_19281001_0113_004_0060.xml
article
53
53
Automobiles
[no value]
New Car Parking Plan
[no value]
[no value]
[no value]
[no value]
Little metal bridges over street gutters have been devised by I. G. Bench and J. D. Boyd, sheriff of Utah County, Utah, to receive front wheels of cars and thus prevent their blocking the flow of water during storms and during gutter irrigation.
PopularScience_19281001_0113_004_0061.xml
article
53
53
New Processes and Inventions
[no value]
Cigarette Case-Checker Board
[no value]
[no value]
[no value]
[no value]
This novel case has cigarettes in one side and in the other checkers, which, when not in use, repose under the board, which forms a lid that retains them. The lid is hinged so that one half can be lifted.
PopularScience_19281001_0113_004_0062.xml
article
53
53
New Processes and Inventions
[no value]
Straightener for Golf Clubs
[no value]
[no value]
[no value]
[no value]
Clubs that have been bowed through carelessness, such as letting them lie iron down all winter, are strapped into the straight grooves of this English invention. Left there a sufficient time, they are “cured.
PopularScience_19281001_0113_004_0063.xml
article
54
54,55
[no value]
[no value]
Unusual Personalities at Work
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0064.xml
article
55
55
Ships
[no value]
Achievements in Many Forms
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0065.xml
article
56
56
Unusual Facts and Ideas
[no value]
Keeping Pace with Science
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0066.xml
article
57
57
Unusual Facts and Ideas
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Milk Preserved by Radio—Human Body a Dynamo of a Million Volts—Tears a Powerful Germicide
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[no value]
[no value]
[no value]
THE newest use found for radio is to keep milk from souring. Prof. Karl Seidel, of the University of Vienna, Austria, claims to have discovered a method by which milk, treated by radio waves of short length, can be kept sweet for from three to four weeks! Health authorities in Germany now are testing the process.
PopularScience_19281001_0113_004_0067.xml
article
58
58,139,140,141
LEADING ARTICLES
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A Small BENCH
How to Build One That Will Add Vastly to Your Pleasure in Woodworking and Model Making—The Lumber and Joints to Use—Full
[no value]
[no value]
[no value]
IT IS all right to do model making or other light work on the kitchen table or at a makeshift bench, but sooner - or later every amateur mechanic feels the need for a real workbench. If you have no bench, why not take the time right now to make one, and then gain back the time over and over again through the increased speed with which you are able to work?
PopularScience_19281001_0113_004_0068.xml
article
59
59,134,135
LEADING ARTICLES
[no value]
Building Modernistic Lamps
Three Brilliant Designs for Lights in the New Mode—Cost Is Low, and Construction Easy
[no value]
[no value]
HERMAN HJORTH
LAMPS are such vital, intimate accessories in the modern home, it is but natural that they should be touched by the magic wand of modernistic art. Lighting fixtures designed in the modern manner have been much in evidence in recent furniture exhibitions and have been generally acclaimed.
PopularScience_19281001_0113_004_0069.xml
article
60
60
LEADING ARTICLES
[no value]
A Case for Your Ship Model
That Will Inclose in Glass and Keep Safe from Dnst and Accidental Damage the Rigging and Other Fragile Parts
[no value]
[no value]
E. A. McCann
IF YOU have built a small ship model with much fine detail and delicate rigging, you will undoubtedly wish to place it in a glass case to protect it from the ravages of the feather duster, the vacuum cleaner, and other implements of house cleaning.
PopularScience_19281001_0113_004_0070.xml
article
61
61,131
LEADING ARTICLES
[no value]
New Ways to Paint Radiators
Stippled, Polychromed, and Flat Finishes—Color Schemes—How to Use Sprayers—And Simple Hints to Increase Heating Efficiency
[no value]
[no value]
BERTON ELLIOT
AFTER remaining for years unchanged as an object of often garish and commonplace appearance, the radiator now is yielding to the artist’s touch, like all our household furnishings. Radiator covers to protect walls and curtains from dust, as well as to beautify the appearance of the heating coils, have come into common use.
PopularScience_19281001_0113_004_0071.xml
article
62
62
Aviation
[no value]
High Lights of Aero Progress
Device Invented for Refueling In the Air—Flying Post Offices Will Sort Mail—Record Smashed For Barrel Rolls—Safer Plane Built—Flyer Can Carry Hangar
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BETWEEN New York and San Francisco on the transcontinental air mail route, the I first “air post office” will shortly be put in service, Postmaster General New announces. Postal clerks will ride with the mail and sort it in the air. The new service, which may later be extended to others of the twentythree mail routes now in operation, is made necessary by the increased volume of air mail following the recent reduction of rates.
PopularScience_19281001_0113_004_0072.xml
article
62
62
Aviation
[no value]
Plane Carries Its Own Hangar
[no value]
[no value]
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[no value]
AHANGAR you can carry in your plane’s cockpit, and unroll and set up wherever you land, is the latest novelty to be offered flyers. It shelters a plane completely, giving adequate additional space for working. When taken down, the fabric shelter rolls into a compact bundle with its stakes, guys, and collapsible poles, and it weighs only 110 pounds.
PopularScience_19281001_0113_004_0073.xml
article
62
62
Aviation
[no value]
First Link Ready In Air-Rail Line
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[no value]
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AS THIS issue goes to press, the first air-rail passenger service in the United States is scheduled to commence, according to Col. Paul Henderson, Vice-President and General Manager of Transcontinental Air Transport. The air link, between Chicago and Minneapolis and St. Paul, serves passengers arriving in Chicago via the Pennsylvania Railroad's Manhattan Limited and drops them at the twin cities of Minnesota three and a half hours later.
PopularScience_19281001_0113_004_0074.xml
article
62
62
Aviation
[no value]
Plane Almost Flies Itself
[no value]
[no value]
[no value]
[no value]
SAWED-OFF airplanes of a new type developed at the California Institute of Technology and illustrated above are said to represent an advance in safety and efficiency. A novel control mechanism permits the whole lower wing to be slid forward or backward in flight to the most favorable “staggered” position for stability at a given speed.
PopularScience_19281001_0113_004_0075.xml
article
62
62
Aviation
[no value]
Barrel Roll Record Smashed
[no value]
[no value]
[no value]
[no value]
TWISING like a corkscrew through the air, Thursder Johnson, of St. Paul, spun eighty times in the evolution known as the barrel roll the other day to set a world’s record. Previously twenty-six had been the record for this stunt, called the most sickening known to aviation, in which the plane continues its forward motion while spinning like a screw.
PopularScience_19281001_0113_004_0076.xml
article
62
62
Aviation
[no value]
Propellers Made of Cotton
[no value]
[no value]
[no value]
[no value]
COTTON cloth and canvas, impregnated with resin, are two of the latest materials of which airplane propellers have been made. In efforts to develop a nonbreakable propeller that would have a certain very desirable elasticity and resist corrosion and moisture, the cotton fabric was placed in layers until the thickness desired was obtained, and then molded into blocks under tremendous pressure and heat.
PopularScience_19281001_0113_004_0077.xml
article
63
63
Aviation
[no value]
Planes for Sale—$695 Up
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[no value]
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VARIETY in plenty awaits the prospective airplane purchaser, according to a recent survey of eighty-nine types of commercial and private planes made by sixty-one manufacturers. For a sum that varies from $695 to $60,000, it is possible to buy a plane with a capacity of from one to fourteen occupants.
PopularScience_19281001_0113_004_0078.xml
article
63
63
Aviation
[no value]
Crawls Under Speeding Plane
[no value]
[no value]
[no value]
[no value]
ONCE there was a joke about a scared darky automobile mechanic who declined to fly for fear he might have to “get out and get under” to repair his machine in the air. Now that remarkable feat has been performed by Paul Charles, airplane pilot of Gettysburg, Pa.
PopularScience_19281001_0113_004_0079.xml
article
63
63
Aviation
[no value]
Air Mail Letter Circles Earth
[no value]
[no value]
[no value]
[no value]
AN AIR letter that traveled around the globe to its starting point in seventy-one days is said by its sender, Osborne B. Bond of New York City, to have set a new record despite mishaps which delayed it along the way. Only a part of its journey—between New York, where it was first mailed and Seattle, and between Basrah and Cairo, Egypt, was by. airplane.
PopularScience_19281001_0113_004_0080.xml
article
63
63
Aviation
[no value]
Reliability Tour, 6,300Miles, Is Completed by 24 Planes
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[no value]
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LIKE a covey of birds returning home to roost, twenty-four of the twenty-five airplanes that started the 1928 reliability tour for the Edsel Ford trophy returned to Detroit the other day, after an unparalleled record of motor efficiency and maintained schedule. A thirty-two-leg course had taken them over a route of 6,300 miles, twice over the Rockies, and covering seventeen states; with them flew the referee, Ray Collins, of Detroit, in an Army Air Corps scout plane.
PopularScience_19281001_0113_004_0081.xml
article
63
63
Aviation
[no value]
Navy Bids All Officers Fly
[no value]
[no value]
[no value]
[no value]
THE Navy believes that an officer who knows how to fly is a better officer. That is the interpretation of a recent order that, since all officers cannot attend flying schools, their private flying is to be encouraged. When questions of promotion and retirement arise consideration will be given to men who have taken up flying independently.
PopularScience_19281001_0113_004_0082.xml
article
64
64
photography
[no value]
Movie Camera Harnessed to Dancing Couple
[no value]
[no value]
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[no value]
DID you ever wonder how a close-up movie scene of a dancing couple was made? Here is the secret, as practiced at one large studio. The whole camera and tripod are mounted on a movable platform, drawn across the floor by a harness that encircles the dancers.
PopularScience_19281001_0113_004_0083.xml
article
64
64
Unusual Facts and Ideas
[no value]
"Wheelbarrow" Police Forts
[no value]
[no value]
[no value]
[no value]
"WTHEELBARROW forts" form the latest aid in fighting criminals. London policemen have just tried out the idea. Full length bullet-proof shields are mounted, as shown below, on little-wheeled trucks that can be run into position whenever a gang of thugs is fighting at bay.
PopularScience_19281001_0113_004_0084.xml
article
64
64
Unusual Facts and Ideas
[no value]
Questions Answered
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[no value]
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[no value]
THIS magazine is always more than glad to answer readers’ questions regarding any subject within its field and to supply names and addresses of manufacturers of articles described in its columns. Inclose stamped,self-addressed envelope for the reply and write to Information Department, POPULAR SCIENCE MONTHLY, 250 Fourth Avenue, New York City.
PopularScience_19281001_0113_004_0085.xml
article
64
64
Unusual Facts and Ideas
[no value]
Coal Dyed Pink and Blue
[no value]
[no value]
[no value]
[no value]
WHAT color coal will you burn this winter? Blue coal is the novelty introduced by one great concern, of Buffalo and Rochester, N. Y. In the last of several washes the coal receives on its way to the consumer, it is treated with a blue dye to make it more attractive. The dye costs only three or four cents a ton, and does not affect the heating value.
PopularScience_19281001_0113_004_0086.xml
article
64
64
Unusual Facts and Ideas
[no value]
Big Mail Carrying Torpedoes Would Go 225 Miles Hourly
[no value]
[no value]
[no value]
[no value]
STREAMLINED mail-carrying torpedoes, whizzing along on eight rubber-tired wheels at 225 miles an hour on a track thirty-five feet above the ground—this is the plan presented by two French engineers. Augustin Talon and L. Hirschauer. who estimate that such machines could attain their maximum speed in sixty seconds.
PopularScience_19281001_0113_004_0087.xml
article
64
64
Automobiles
[no value]
A Gasoline Torch of Sand
[no value]
[no value]
[no value]
[no value]
WHEN you are stranded on the road with tire trouble, late at night, and no flashlight is at hand, a makeshift trouble light is easily provided. Scrape up a small pile of sand, pour about a cupful of gasoline on it, and ignite. It will burn fifteen or twenty minutes.
PopularScience_19281001_0113_004_0088.xml
article
64
64
Aviation
[no value]
"Nerve Center" of Air Traffic
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[no value]
[no value]
[no value]
THE “nerve center” from which pilots flying over American air mail and transport lines get their information about weather and other matters important to their safety is shown in the photograph above. From a station on the twelfth floor of the Department of Commerce Building in Washington, D. C., the -information is transmitted by telegraph, as seen in the picture, to the powerful Arlington Naval radio broadcasting station.
PopularScience_19281001_0113_004_0089.xml
article
65
65
New Processes and Inventions
[no value]
Print Your Own Electric Sign
[no value]
[no value]
[no value]
[no value]
YOU can write in electric lights with a novel changeable electric sign. By fitting the lamp sockets into perforations in a vulcanized panel, anyone can spell out messages without having had any previous experience in hand lettering. The new display panel is recommended by its makers for use in stores*to mark different counters and to announce special bargains, as well as for other purposes where an illuminated sign is desirable.
PopularScience_19281001_0113_004_0090.xml
article
65
65
Unusual Facts and Ideas
[no value]
Taming Waves to Save Beach
[no value]
[no value]
[no value]
[no value]
ALL along the Atlantic coast of New Jersey, ocean waves have been tearing away the beach for years. Authorities of popular seaside resorts have taken counsel, and now, at Alienhurst, N. J., they are installing a unique sort of breakwater to tame the waves—an offshore pipe that fills the surrounding water with compressed air bubbles, through a system devised by Philip Brasher, Princeton, N. J., engineer.
PopularScience_19281001_0113_004_0091.xml
article
65
65
Unusual Facts and Ideas
[no value]
Speed in Phone Information
[no value]
[no value]
[no value]
[no value]
DID you ever wonder how “Information” found the telephone number you requested in those few seconds before her reply? The photograph at the right shows how it’s done at Cleveland's new information bureau, where the names, addresses, and telephone numbers of thousands of subscribers, printed on cards, are kept in rotary files that can instantly be whirled to the proper index mark.
PopularScience_19281001_0113_004_0092.xml
article
65
65
Unusual Facts and Ideas
[no value]
Attention, Inventors! Here's What the World Is Crying For
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[no value]
[no value]
[no value]
THE new annual edition of “What’s Wanted,” an English book suggesting needed inventions, has just been published by the Institute of Patentees. Among the new wants it lists are: A pencil that makes a mark as black as ink. An indicator to denote when an iron is hot enough to use without scorching.
PopularScience_19281001_0113_004_0093.xml
article
65
65
New Processes and Inventions
[no value]
Hand Bag Is a Raincoat, Too
[no value]
[no value]
[no value]
[no value]
IF IT rains, get inside part of your hand bag and keep dry! That is the advice of the English inventor of a hand bag with a raincoat attached—and certainly showers should have no terrors for the owner of this device. When not in use, the coat folds up and forms the outer covering of the bag.
PopularScience_19281001_0113_004_0094.xml
article
65
65
Unusual Facts and Ideas
[no value]
Acid Bath for Piano Keys
[no value]
[no value]
[no value]
[no value]
YELLOWED piano keys may be restored to their original whiteness, science has learned, with a solution made by pouring one ounce of nitric acid, slowly, into twelve ounces of soft water. Do not reverse this; for nitric acid is destructive to skin and clothing and may safely be handled only in this way, to avoid boiling and spattering.
PopularScience_19281001_0113_004_0095.xml
article
66
66
Automobiles
[no value]
Merry-Go-Round Storage Plan for Motor Cars
[no value]
[no value]
[no value]
[no value]
A VERITABLE merry-go-round for parked cars Is the endless carrier devised by Joseph I). Bell, of San Francisco, to conserve storage space in small garages. It also makes it easy for a motorist to obtain instant access to his car. Six movable platforms, each with space for one automobile, are rotated by the touch of an electric button.
PopularScience_19281001_0113_004_0096.xml
article
66
66
Automobiles
[no value]
Explorers Sea-Going Auto
[no value]
[no value]
[no value]
[no value]
A SPECIALLY built automobile that plunges in and swims across streams and lakes is part of the equipment of an expedition sent to study the Aleutian Islands. These islands, extending 1200 miles into the Pacific from the coast of Alaska, contain active volcanoes about which little is known.
PopularScience_19281001_0113_004_0097.xml
article
66
66
Unusual Facts and Ideas
[no value]
Odd Mineral Masked as Coal
[no value]
[no value]
[no value]
[no value]
ONE of the oddest minerals in the world is Gilsonite, a brilliant black asphaltic substance found only in Utah that is in demand all over the world for use in manufacturing paint, varnish, ink, and telephone mouthpieces. It was discovered in 1862; but it was not successfully marketed until 1904.
PopularScience_19281001_0113_004_0098.xml
article
66
66
Ships
[no value]
Boat Run by Air Propeller Works on Plane s Principle
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[no value]
[no value]
[no value]
ATINY motor boat run by an electric fan—or what appears to be one at first sight—has appeared in Germany. The Canadian Seagull. as it is called, has shown surprising speed. The propeller, mounted on the rear, is inclosed to prevent injury to passengers and lest clothing become entangled in its whirling blades.
PopularScience_19281001_0113_004_0099.xml
article
66
66
Aviation
[no value]
Helium for Everyone
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[no value]
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[no value]
FOR the first time. helium gas, used instead of inflammable hydrogen gas to float balloons and dirigibles, has been placed on the open market. Formerly the gov eminent controlled this country's supply. which came almost exelusively from its plant at Fort Worth, Texas; but with the opening of a new plant to extract helium from natural gas at Amarillo, Texas. officials of the U. S. Bureau of Mines announce that. abundant helium at moderate cost is now assured not only for the War and Navy Departments, but for the whole country generally.
PopularScience_19281001_0113_004_0100.xml
article
66
66,161
Unusual Facts and Ideas
[no value]
How Much Do You Know of the World You Live In?
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[no value]
[no value]
[no value]
Test your knowledge with these questions, chosen from hundreds asked by readers. Correct answers are on page 161. Where Mere seashells used for money? What are the nomads? Where do natives regularly cook their food in hot springs? On Mhat island are human beings forbidden either.
PopularScience_19281001_0113_004_0101.xml
article
67
67
Unusual Facts and Ideas
[no value]
WorldWide Huntfor Radium Planned by Carnegie Expert
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[no value]
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[no value]
WORLD-WIDE search for new sources of radium, probably the world's costliest substance, is to be made by Dr. Charles S. Piggot, of the Geophysical Laboratory of the Carnegie Institution at Washington, D. C., he recently told the Washington Academy of Science.
PopularScience_19281001_0113_004_0102.xml
article
67
67
Unusual Facts and Ideas
[no value]
Tools Shape Workers' Hands
[no value]
[no value]
[no value]
[no value]
THAT the shape of the bones in a man's finger may show that he is a carpenter is one of the novel conclusions of a cent German investigation reminiscent of the fictional detective feats of Sherlock Holmes. Under the X-ray, experts found, peculiarities in the shape of a workman’s fingers revealed that they had long used a plane or similar wood-working tool.
PopularScience_19281001_0113_004_0103.xml
article
67
67
Automobiles
[no value]
Device Lets Driver See High Traffic Lights
[no value]
[no value]
[no value]
[no value]
THIS device was developed by a Cleveland inventor for the benefit of motorists who have to squirm about and crane their necks to see overhead traffic lights. It consists of a small lens which is attached to the windshield in front of the driver.
PopularScience_19281001_0113_004_0104.xml
article
67
67
photography
[no value]
Camera Catches Church Thief
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[no value]
[no value]
[no value]
WHEN Charles Callan, accused of robbing the poor box of a New York church not long ago, denied the charge, he was confronted with a photograph that find caught him in the very act. He remembered, then, a flash of light near the church’s altar rail that had startled him and caused him to flee—not fast enough, however, to escape the arm of the law and a swift conviction based on the photograph's evidence.
PopularScience_19281001_0113_004_0105.xml
article
67
67
Unusual Facts and Ideas
[no value]
Chairs Ventilate This Auditorium
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[no value]
[no value]
[no value]
FRESH air is brought up through the legs of chairs into the auditorium of the Congressional Library. at Washington, in a new ventilating system. Additional air to keep the millions of books free from brittleness or musty odors is washed with water and oil, to clean and humidify it, and blown through the shelves.
PopularScience_19281001_0113_004_0106.xml
article
67
67
Automobiles
[no value]
New Jack Saves Work for Motorist
[no value]
[no value]
[no value]
[no value]
THE automobile instead of the driver does the work in using this new jack, consisting of a runway and a supporting table. A steel arm from the runway sets the supporting table in position to receive the axle when the car is run up and lowered to the table. To lower the car to the ground again, all that is necessary is to give a sharp jerk on the chain attached to the trip, which collapses the supporting table.
PopularScience_19281001_0113_004_0107.xml
article
67
67
New Processes and Inventions
[no value]
New Quick-Drying Varnish
[no value]
[no value]
[no value]
[no value]
A NEW varnish that dries thoroughly in four hours after it has been applied enables house painters and others to apply two coats in a single working day. Formerly a single coat required twenty-four hours to harden properly.
PopularScience_19281001_0113_004_0108.xml
article
67
67
Automobiles
[no value]
Know Your Car
[no value]
[no value]
[no value]
[no value]
YOUR car is most likely to skid on wet pavements just after the rain has started. The first drops unite with the dust to form a slippery film. A heavy downpour washes this away. The most dangerous of all skids is the front-wheel skid, but, fortunately, this does not happen very often.
PopularScience_19281001_0113_004_0109.xml
article
68
68
Models
[no value]
Boys Run a Miniature Plane Factory
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[no value]
[no value]
[no value]
TWO Los Angeles boys. Oliver W.Young and Ralph E. Olson, have organized a miniature airplane fact ory in that city which is doing a thriving business. Besides their plant, they have their own “flying field“ where “test pilots“ try out the glistening machines as they come from the factory.
PopularScience_19281001_0113_004_0110.xml
article
68
68
Unusual Facts and Ideas
[no value]
Vending Machine Says "Thank You"
[no value]
[no value]
[no value]
[no value]
THIS polite automaton, which has been placed in several parks in Berlin by a German newspaper, says “Thank you“ when it delivers a paper after a coin has been dropped in the slot. A $25,000,000 company has recently been formed in the United States to build similar automatons which are to be installed in cigar stores throughout the country.
PopularScience_19281001_0113_004_0111.xml
article
68
68
Unusual Facts and Ideas
[no value]
Botanist Hunts Mate for Trees
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[no value]
[no value]
[no value]
ASTRANGE story of the near extinction of a tree and its later revival is told by Dr. Edgar T. Wherry, of the U. S. Department of Agriculture, who is searching for a mate for it in order to write the last chapter of its history. As long ago as 1765, John Bartram, early American botanist, discovered a small patch of the ornamental trees called Franklinia, after Benjamin Franklin, growing wild near Fort Barrington, Ga. Shortly after, a number were transplanted to Philadelphia.
PopularScience_19281001_0113_004_0112.xml
article
68
68
New Processes and Inventions
[no value]
Machine Counts Phone Calls
[no value]
[no value]
[no value]
[no value]
BOUNCING balls of steel go mathematicians one better in a counting device recently exhibited in London by the Royal Society and used in telephone traffic estimates. Hitherto it has been a laborious and time-wasting process to calculate in advance the number of telephone calls and their routing that might be expected by a new telephone exchange.
PopularScience_19281001_0113_004_0113.xml
article
69
69
Unusual Facts and Ideas
[no value]
Army Demonstrates a New Gas Mask for War Horses
[no value]
[no value]
[no value]
[no value]
BUDDY, an Army horse stationed at Governor’s Island, New York, is shown wearing the latest mask designed to protect war horses and mules during gas attacks. The bag of the mask fits tightly over the nostrils of the animal and is held in place by straps buckled over its head.
PopularScience_19281001_0113_004_0114.xml
article
69
69
photography
[no value]
Machine Makes Plant Movies
[no value]
[no value]
[no value]
[no value]
THE strange machine at the right is a combination eight-day electric clock, powerful microscope, and moving picture camera. Set it and leave it alone for eight days and then you can take out a film that shows the development of a flower! Besides filming the growth of plants, the new machine is expected to catch the life history of germs and even to show on a strip of film the development of a chicken within the egg.
PopularScience_19281001_0113_004_0115.xml
article
69
69
photography
[no value]
Beating Heart Is Filmed
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WHEN a heart beats, contractions sweep over it in successive waves, from top to bottom. This was shown in slow motion pictures recently made of the heartbeats of an anesthetized animal by Dr. L. B. Arey, Professor of Anatomy at Northwestern University Medical School, Chicago.
PopularScience_19281001_0113_004_0116.xml
article
69
69
Astronomy
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The Sun’s Flames Measured
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FLAMES leap outward from the surface of the sun at a rate of 20,000 miles a minute and sometimes reach a height of half a million miles, according to Dr. Ferdinand Ellerman, of Mt. Wilson Observatory, in California. When these “prominences” were first noted, during a complete eclipse, early astronomers were divided as to whether they belonged to the sun or the moon.
PopularScience_19281001_0113_004_0117.xml
article
69
69
Unusual Facts and Ideas
[no value]
To Cross Ocean in 50 Hours
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[no value]
A 2,400-HORSEPOWER speed boat that will be able to cross the Atlantic from Brest, France, to New York in fifty hours, according to the claims of its designer and builder, is being constructed by Ettore Bugatti in his automobile plant at Molsheim, Alsace.
PopularScience_19281001_0113_004_0118.xml
article
69
69
photography
[no value]
Inventor Claims a $25 Home Talking Film Outfit
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NEW bits of comment gleaned from the movie world discuss the latest aspect of “talking movies,” whose threat to invade a field long reserved for the silent drama was described last month in POPULAR SCIENCE MONTHLY. Amateur talking movies in the home are a possibility frequently mentioned
PopularScience_19281001_0113_004_0119.xml
article
69
69
New Processes and Inventions
[no value]
Color Device Grades Cotton
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A SENSITIVE new colorimeter, devised by Dorothy Nickerson, of the U. S. Department of Agriculture, instantly grades hay, cotton, and other materials according to their color and does away with the necessity of more complicated tests. The field of the eyepiece of the instrument has two halves.
PopularScience_19281001_0113_004_0120.xml
article
69
69
Unusual Facts and Ideas
[no value]
Strange Facts About Sleep
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MEN behave like vegetables for a third of their lives, according to Dr. II. M. Johnson, psychologist at the University of Pittsburgh. When men are asleep, he says, they do nothing, know nothing, enjoy nothing. They are in a similar state to that of vegetables.
PopularScience_19281001_0113_004_0121.xml
article
69
69
Automobiles
[no value]
Plates Fitted to Your Car
[no value]
[no value]
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NO LONGER is it necessary to mutilate license plates to make them fit the brackets on your car, according to Ray M. Hudson, of the Department of Commerce's commercial standards division. Plates in every state now conform to standard bracket slots proposed by the Society of Automotive Engineers.
PopularScience_19281001_0113_004_0122.xml
article
69
69
Astronomy
[no value]
Auto Bumpers Standardized
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A RECENT survey at Washington, D.C., reported in a bulletin of theU. S. Bureau of Standards showed that locked bumpers were a more serious cause of traffic tie-ups than any other single trouble; and the first step toward a remedy has been taken with the drafting of a uniform code for motor coaches providing for a standard bumper height so that in the event of minor collision the bumpers will meet face to face.
PopularScience_19281001_0113_004_0123.xml
article
70
70
Ships
[no value]
Water Jets May Drive Ships Through Ocean
[no value]
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OCEAN liners, without propellers or rudders, pumped through the water at the rate of 100 miles an hour, are the plan of Virgil C. Anderson, of San Francisco. Anderson, who was in the submarine service during the war, believes that two twenty-four-inch pistons with a six-foot stroke, working in cylindrical pipes, drawing in water and expelling it under high pressure from the rear, would drive the vessel across the Atlantic in less than three days.
PopularScience_19281001_0113_004_0124.xml
article
70
70
New Processes and Inventions
[no value]
Packing Cases Box Car Size
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HUGE shipping boxes that transform a railroad flat car into a sectional box car have recently been tried in Great Britain to meet the growing competition of automobile trucks as freight carriers. They dispense entirely with the tedious process of loading and unloading a standard box car.
PopularScience_19281001_0113_004_0125.xml
article
70
70
New Processes and Inventions
[no value]
A Mechanical Census Clerk
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THE remarkable machine at the right, which turns out as much Avork in one minute as a human clerk can do in six hours, will help Uncle Sam tabulate the census of 1930. It is shown being tested by an employee of the Census office in Washington, D. C. The machine puts down sixty facts on cards by punching holes in them to indicate the answers to questions.
PopularScience_19281001_0113_004_0126.xml
article
70
70
Automobiles
[no value]
Autos Halted in Five Feet
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SPEEDING cars are stopped instantly at the will of the driver through “wheel chocks,” new substitutes for automobile brakes, according to claims of the inventor, Pasquale Strano, of Elizabeth, N. J. They are said to have brought a light car moving tiventy miles an hour to a halt in less than fiAre feet without damage to the automobile or shock to the driver.
PopularScience_19281001_0113_004_0127.xml
article
70
70
Unusual Facts and Ideas
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“Televox” Acquires Voice; Mechanical Man Uses Phone
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NOW “Mr. Televox,” the East Pittsburgh, Pa., automaton created by Roy J. Wensley, Westinghouse engineer, has a deep bass voice. A mechanical man Avith electric coils for muscles and a newly-added strip of “talking moA’ie” film for lungs, he is able to acknowledge a call A’ocally and even to put one through on his oAvn account if necessary.
PopularScience_19281001_0113_004_0128.xml
article
70
70
Unusual Facts and Ideas
[no value]
Politics Spurs Inventors
[no value]
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EVEN the U. S. Patent Office plays a part in the presidential campaign. It has been swamped by applications of inventors and manufacturers of advertising specialties to boost one candidate or another. New designs for buttons, banners, and auto windshield stickers, even for cap bands are among the many novelties received.
PopularScience_19281001_0113_004_0129.xml
article
70
70
Unusual Facts and Ideas
[no value]
Manuscript Ages Old Saved
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AMYSTERY more than thirty centuries old was solved recently in England with the help of modern chemistry. For fifty years, an ancient Egyptian manuscript had lain in the British Museum unread. The leather roll had become so brittle that no one dared open it.
PopularScience_19281001_0113_004_0130.xml
article
71
71
photography
[no value]
Film Showing Color Shades Here for Amateur's Camera
[no value]
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AN IMPROVED film for the use of amateur photographers has recently been put upon the market by a British concern. It is known as panchromatic, or equally color-sensitive film. It should not be confused with the new Eastman color movie film, described elsewhere in this issue.
PopularScience_19281001_0113_004_0131.xml
article
71
71
Unusual Facts and Ideas
[no value]
The Safe Way to Wash Silk
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THE life of silk depends upon how it is washed, says the Bureau of Home Economics of the Department of Agriculture. Wash silk garments in lukewarm water, never in hot. Do not rub hard or twist the fabric. Rinse thoroughly in water the same temperature as' that of the washing and remove the water by squeezing and patting the silk between dry towels. Never dry silk in the sun.
PopularScience_19281001_0113_004_0132.xml
article
71
71
Unusual Facts and Ideas
[no value]
Gas Kills Boll Weevils
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CREATING a cloud of poison smoke. a machine guided by a driver wearing a gas mask moves across a cotton field, exterminating the boll weevils as it goes. Poison dust is fed from a hopper into a small fire box from which a fan forces the heavy, gaseous smoke into a tentlike inclosure that prevents its being dissipated before it reaches the ground.
PopularScience_19281001_0113_004_0133.xml
article
71
71
New Processes and Inventions
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Soundproof Tiles Reduce Factory Din
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TILES which absoro sound have been developed by engineers of a Chicago laboratory. They are made of metal in the form of trays, sixteen inched square, perforated so that sound passes through them just as it does through a screen window. The trays are packed with a feltlike, sound-absorbing material which is said to consume seventy percent of the noise that reaches it through the perforations.
PopularScience_19281001_0113_004_0134.xml
article
71
71
Health and Hygiene
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Machine Gives Anesthetic
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“MECHANICAL interne” that is governed by the breathing of the patient has been invented by a professor at the University of Maryland to administer anesthetic at an operation. There are, he says, three distinct stages through which every person goes in receiving an anesthetic, the “irritative,” the “fighting” and the “completely unconscious.” In each stage the breathing differs.
PopularScience_19281001_0113_004_0135.xml
article
71
71
Unusual Facts and Ideas
[no value]
When Metal Gets Tired
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[no value]
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A METAL gets tired and needs a rest the same as does an animal, says Prof. J. B. Kommers, expert on metal fatigue at the University of Wisconsin. When an axle breaks or an automobile wheel drops off without apparent cause, the reason usually is that the metal was fatigued and needed a rest and didn't get it.
PopularScience_19281001_0113_004_0136.xml
article
71
71
Engineering
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Skyscraper Sets Speed Mark
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IT TOOK a crew of fifty men just thirty-six working days to erect the steel framework of a twenty-five-story Chicago building, setting a new speed record for construction jobs of that great size. As the building rose to its final story, a fifteen-ton derrick helped swing the steel columns and beams into place.
PopularScience_19281001_0113_004_0137.xml
article
71
71
Automobiles
[no value]
Asks Elevated Auto Exhausts
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AUTOMOBILE motor exhausts should be on top of cars instead of near the ground, according to Dr. Louis I. Harris, formerly Health Commissioner of New York City, who has suggested the change to several manufacturers as a means of reducing the amount of carbon monoxide breathed by city dwellers.
PopularScience_19281001_0113_004_0138.xml
article
72
72
Automobiles
[no value]
Big New Automobile Built Like a Luxurious Yacht
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OUTFITTED going yacht, like this a motor luxurious vehicle, seacalled a “Flatavan,” built by an English engineer for an Easton, Maryland, sportsman, who w ill make a hunting trip to the Rockies in it, can speed along at forty-five miles an hour. The van has four compartments, a lavatory with a showier bath, a saloon, a kitchen, and a driving compartment.
PopularScience_19281001_0113_004_0139.xml
article
72
72
Automobiles
[no value]
Auto Seats Made Into a Bed
[no value]
[no value]
[no value]
[no value]
IN THE “Pullman-sedan” seen below a few simple motions will adjust the front and rear seats to provide a comfortable bed for the night. Tourists, says the inventor, may park anywhere nightfall finds them and sleep as restfully as they would in a hotel.
PopularScience_19281001_0113_004_0140.xml
article
72
72
Unusual Facts and Ideas
[no value]
A $5,000 Duck
[no value]
[no value]
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[no value]
A DUCK valued at $5,000 was recently exhibited at the Field Museum of Natural History in Chicago. It was a specimen of the extinct Labrador duck, said to be rarer than the famous extinct great auk. Only 45 specimens exist in the whole world, according to Dr. Wilfred Osgood, curator of zoology at the museum.
PopularScience_19281001_0113_004_0141.xml
article
72
72
Unusual Facts and Ideas
[no value]
The Rainiest Spot on Earth
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[no value]
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THE world's wettest farm lies on the gulf of San Bias in Eastern Panama. Known as San Bias Farm, it is the headquarters for a large banana plantation. In three months, the rainfall there totaled 137.12 inches—three times as much as is usually recorded in Washington, D. C., in a year.
PopularScience_19281001_0113_004_0142.xml
article
72
72
Unusual Facts and Ideas
[no value]
Shorthand Sent by Telephoto
[no value]
[no value]
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[no value]
SENDING shorthand messages by wire is the latest application of the telephotograph. A picture, accompanied by a hundred-word message written in shorthand explaining it, was recently sent from the telephotographic station of the American Telephone and Telegraph Company in New York City to Los Angeles in about seven minutes.
PopularScience_19281001_0113_004_0143.xml
article
72
72
Unusual Facts and Ideas
[no value]
Insects Poison and Stab Ants
[no value]
[no value]
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[no value]
AN ASSASSIN insect in the Dutch East Indies that poisons and then stabs its victims has been observed by the British entomologist, W. E. China. It is a distant relative of the cicadas and expells a poison fluid that attracts a certain species of black ant.
PopularScience_19281001_0113_004_0144.xml
article
72
72
Unusual Facts and Ideas
[no value]
Any Questions?
[no value]
[no value]
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[no value]
THIS magazine is always very glad to answer readers' questions regarding subjects within its field, and to supply names of manufacturers of articles mentioned in its columns. Inclose stamped, self-addressed envelope and write to Information Department, POPULAR SCIENCE MONTHLY, 250 Fourth Avenue, New York City.
PopularScience_19281001_0113_004_0145.xml
article
73
73
Unusual Facts and Ideas
[no value]
Trees Grow by Spurts for Forty Days of Each
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NINETY percent of the height growth of trees in the latitude of Pennsylvania is attained during forty days in spring and early summer, according to an investigation reported by the American Tree Association. This contradicts the belief, held for many years, that trees grow steadily from the time they put out their leaves in the spring until the frost comes in the fall.
PopularScience_19281001_0113_004_0146.xml
article
73
73
Automobiles
[no value]
Automobile a Sun Bath House
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[no value]
[no value]
[no value]
NOW devotees of the open air can take a sun bath any time in complete privacy whether they are in a city's midst or touring along an open road. A new English automobile. outwardly rescembling a standard sedan, is equipped with a demountable top that can be rolled back completely to admit the sun.
PopularScience_19281001_0113_004_0147.xml
article
73
73
Automobiles
[no value]
Warns When Tail-Light Fails
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[no value]
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OWNERS of cars equipped with this novel device, invented by a French mechanic, need not get out and walk around to the back to see if the tail-light is on. The tiny indicating lamp fits on the dashboard and is dark as long as the tail-light is functioning properly.
PopularScience_19281001_0113_004_0148.xml
article
73
73
Unusual Facts and Ideas
[no value]
Clock a Glacier's "Diary"
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[no value]
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THE "diary" of a glacier, covering seventeen years. has recently been Made public by Prof. R. T. Chaniberlin, of the University of Chicago. Lines scratched by two needles on a clock disk kept the record and proved a theory of glacial movement advanced thirty years ago by Prof.
PopularScience_19281001_0113_004_0149.xml
article
73
73
Unusual Facts and Ideas
[no value]
Tiny Tractor Moves Huge Railway Cars About
[no value]
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THIS sturdy little American tractor at work on Prince's Pier. Melbourne. Australia. has taken the place of horses which have been used for years to shunt railway cars about the tracks leading to and from the ships. The trac tor pulls the cars behind it by a hook attached to the back or pushes them before it with a heavy steel bumper braced in front of the radiator.
PopularScience_19281001_0113_004_0150.xml
article
73
73
Unusual Facts and Ideas
[no value]
Test Burning of Matches
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[no value]
[no value]
[no value]
VERY year $100 ,000, 000 worth of property goes up in flames in the United States because matches burn too long. That is the conclusioii drawn from a recent series of experiments carried on in Washington, D. C., by the Bureau of Standards. The average length of time required to light a pipe or cigarette was found to be ten seeonds.
PopularScience_19281001_0113_004_0151.xml
article
73
73
Engineering
[no value]
Building Highest Darn
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[no value]
[no value]
[no value]
THE highest dam in the world is being constructed in the Owyhee River in eastern Oregon, near the Idaho line. under the direction of the Bureau of Reclamation, Department of the Interior. Nearly half a million cubic yards of concrete will be used by the Seattle, Washington, contractors.
PopularScience_19281001_0113_004_0152.xml
article
73
73
New Processes and Inventions
[no value]
Mask Clears Catcher's Vision
[no value]
[no value]
[no value]
[no value]
foul tip crashes into the new catcher's mask, seen at the left. the player is completely protected. At the same time, the elimination of vertical wires in the construction insures him an unobstructed view of all parts of the field. This improved mask made its appearance when "Bubbles" Hargrave.
PopularScience_19281001_0113_004_0153.xml
article
73
73
Unusual Facts and Ideas
[no value]
Recording National Dialects
[no value]
[no value]
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[no value]
BEFORE good roads and the radio wipe out dialects in the United States, Columbia University is going to record permanently on phonograph records the characteristic speech of different sections of the country. The university has set aside $500 for this purpose.
PopularScience_19281001_0113_004_0154.xml
masthead
74
74
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Popular Science
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PopularScience_19281001_0113_004_0155.xml
article
74
74
LEADING ARTICLES
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Editorials
When Telephones Were Impossible
Radio May Need Policing
Great Ideas Are Simple Ones
Why Architects Should Marry
What Is the Speed Limit?
They Are Saying—
[no value]
[no value]
[no value]
SIXTY-ONE years ago. a Boston newspaper published this editorial : “A man about 40 years of age. giving the name of Joshua Coppersmith, has been arrested in New York for attempting to extort funds from ignorant and superstitious people by exhibiting a device which he says will carry the human voice any distance over metallic wires so that it will be heard by the listener at the other end.
PopularScience_19281001_0113_004_0156.xml
advertisement
75
75
[no value]
[no value]
SKF INDUSTRIES, INCORPORATED
[no value]
SKF INDUSTRIES, INCORPORATED
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0157.xml
article
76
76,166
LEADING ARTICLES
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A Piece of String Fixes an Auto
Gus and Joe Hire a Wizard Who Doesn't Bat an Eye at a Dead Battery or Broken Steering Arm
[no value]
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MARTIN BUNN
"I WONDER how 'Spare Parts' Harbison made out with that queer little mechanic you talked him into taking on his automobile trip?" Joe Clark observed. Must have worked so well that `Spare Parts' extended his trip to cover a lot more territory." replied Gus, who was Joe's partner in the Model Garage. "I wish they'd come back.
PopularScience_19281001_0113_004_0158.xml
advertisement
77
77
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THE J. B. WILLIAMS CO.
[no value]
THE J. B. WILLIAMS CO.
[no value]
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PopularScience_19281001_0113_004_0159.xml
article
78
78
Little Helps for the Motor Enthusiast
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Ideas Others Find Valuable
Tank Measures Gasoline by the Mile—Radiator Thawed by Steam—Emergency Grease Gun—A Runway Over a Curbstone
[no value]
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[no value]
THE simple auxiliary gasoline tank shown in Fig. 1 will prove very useful to the experimentally inclined motorist. With one of these tanks on your car you can determine gasoline consumption in miles per gallon with the greatest ease. You can quickly determine the most economical speed at which to run your car either on the hills or on the level.
PopularScience_19281001_0113_004_0160.xml
article
78
78
Automobiles
[no value]
Steam Thaws Radiator
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[no value]
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IF YOUR radiator freezes while you arc driving, a simple way to thaw it, as shown in Fig. 2, is to attach a short length of rubber hose to the overflow pipe from which the steam is flowing and squirt the steam through the fins of the radiator. Start at the top and work downward.
PopularScience_19281001_0113_004_0161.xml
article
78
78
Automobiles
[no value]
Ten Dollars for an Idea!
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FRED J. SEVERS, of St. Louis, wins this month’s $10 prize with his suggestion for a gasoline gage (Fig. 1). POPULAR SCIENCE MONTHLY awards $10 each month, in addition to regular space rates, to the reader sending in the most valuable suggestion for motorists. Other published contributions are paid for at regular rates.
PopularScience_19281001_0113_004_0162.xml
article
78
78
Automobiles
[no value]
Emergency Grease Gun
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[no value]
[no value]
[no value]
ONE of the messiest jobs about an automobile is filling the differential housing with grease if you have no grease gun. To avoid this difficulty, make up a cone from several thicknesses of newspaper, fill it with grease, and insert the end of the cone in the filler hole in the rear end housing.
PopularScience_19281001_0113_004_0163.xml
article
78
78
Automobiles
[no value]
Novel Folding Runway
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[no value]
[no value]
[no value]
IN CASES where it is desired to have a curb on the sidewalk opposite the driveway to your garage, some provision must be made to eliminate the constant pounding your tires will get if they are forced to climb the curb every time you drive the car in.
PopularScience_19281001_0113_004_0164.xml
advertisement
79
79
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[no value]
CeCo MANUFACTURING CO, Inc.: Radio Tubes
[no value]
CeCo MANUFACTURING CO, Inc.
Radio Tubes
[no value]
[no value]
PopularScience_19281001_0113_004_0165.xml
article
80
80,125
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[no value]
Odd-Job Tips for Handy Men
Razor Blade Disposal—Ironing Board and Drier
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WHAT to do with safety razor blades—that eternal question—may be answered in the home by adopting the method used on Pullman cars. Cut a hole through the plaster of the bathroom wall and place a piece of the slotted metal over it, as shown in Fig. 1.
PopularScience_19281001_0113_004_0166.xml
advertisement
81
81
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STANLEY TOOLS
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STANLEY TOOLS
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[no value]
PopularScience_19281001_0113_004_0167.xml
article
82
82,137,138
Models
[no value]
Models That Fly Farther
How to Build More Speed and Distance into Your Miniature Aircraft—Bamboo, Covering Materials, Propellers, Fittings
Blueprints That Make Model Building Easy
Removing Floor Finishes
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[no value]
J. DANNER BUNCH
AVISON F. KOCH
MANY enthusiastic constructors of model airplanes are hampered by a lack of facilities. They do not find difficulty in obtaining the few tools needed, but they often discover that it is no easy task to buy suitable materials. Every model builder should get the catalog of at least one wellknown model supply house and familiarize himself with standard materials and fittings.
PopularScience_19281001_0113_004_0168.xml
advertisement
83
83
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Advertisements
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CLAYTON & LAMBERT MANUFACTURING CO.
C & L 158
CLAYTON & LAMBERT MANUFACTURING CO.
C& L 32
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PopularScience_19281001_0113_004_0169.xml
article
84
84,123,124
Unusual Facts and Ideas
[no value]
Winding Springs Is Easy
Once You Know How to Tame Music Wire and Other Stubborn Stock and Can Make Mandrels and Tools
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[no value]
H. L. WHEELER
IT WAS a proud moment for Jack Blinds when he stepped out as a journeyman machinist. Decked out in his brand-new overalls and quite confident of his own mechanical knowledge. acquired in four hard years of apprenticeship at the railroad shops in his home town, he presented himself to Ed Wilkins, foreman of the general jobbing shop in which he was to work.
PopularScience_19281001_0113_004_0170.xml
advertisement
85
85
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L. S. STARRETT CO.
[no value]
L. S. STARRETT CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0171.xml
article
86
86,125
Unusual Facts and Ideas
[no value]
How Shop Men Cut Corners
Adapting a Lathe for Production Work—Two Ingenious Milling Kinks
Old Bill Says—
[no value]
[no value]
R. H. KASPER
WE HAD an order recently for a quantity of “spuds” as shown in Fig. 4 above. The shop’s equipment included nothing more suitable for the work than an engine lathe, but we developed tooling equipment that made the job very simple. And the same principle can be applied to other lathe work of similar character.
PopularScience_19281001_0113_004_0172.xml
advertisement
87
87
[no value]
[no value]
Advertisements
[no value]
BROWN & SHARPE TOOLS
THICKNESS GAUGE No. 648
BROWN & SHARPE TOOLS
DIE MAKERS' SQUARE No. 552
[no value]
[no value]
PopularScience_19281001_0113_004_0173.xml
advertisement
88
88,89
[no value]
[no value]
THE KODEL ELECTRIC AND MFG. CO.
[no value]
THE KODEL ELECTRIC AND MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0174.xml
advertisement
90
90
[no value]
[no value]
J. H. WILLIAMS & CO.
[no value]
J. H. WILLIAMS & CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0175.xml
article
90
90,128
For the Home Owner
[no value]
Easy-to-Build Bookcase
In Simplicity Lies the Charm of This
[no value]
[no value]
KENNETH H. LAVOY
EVEN in this day of public and circulating libraries, all of us have a few choice volumes and need a convenient place to keep them. The bookcase illustrated at the right is large enough to hold many books and has, in addition, a rack for current magazines.
PopularScience_19281001_0113_004_0176.xml
advertisement
91
91
[no value]
[no value]
Taylor Instrument Companies
[no value]
Taylor Instrument Companies
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0177.xml
advertisement
92
92
[no value]
[no value]
BILLINGS & SPENCER COMPANY
[no value]
BILLINGS & SPENCER COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0178.xml
article
92
92,130
For the Home Owner
With Glazing Putty You Can Obtain
A Fine Finish on Poor Wood
F. N. V anderwalker Explains How Rough Surfaces Can Be Painted Smoothly
[no value]
[no value]
[no value]
AFTER sandpapering some wooden surfaces as much as possible, you often will still find, especially on the poorer grades of lumber, certain rough areas that are too deep to be made smooth. These are usually the areas around knots where the end wood fibers are short and run in various directions.
PopularScience_19281001_0113_004_0179.xml
advertisement
93
93
[no value]
[no value]
BLACK & DECKER
[no value]
BLACK & DECKER
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0180.xml
advertisement
94
94
[no value]
[no value]
THE CELOTEX COMPANY
[no value]
THE CELOTEX COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0181.xml
article
94
94,129
For the Home Owner
[no value]
Vault for Storing Valuables
How to Build atLow Cost a Fireproof Strong Box of Metal-Lined Concrete
[no value]
[no value]
HAROLD RIDGE
NEXT box in or security a good to safe a safety for keeping deposit valuable papers is a fireproof vault like the one illustrated. It is often necessary for the writer to take valuable papers to his summer home, which is some distance from any bank or trust company.
PopularScience_19281001_0113_004_0182.xml
advertisement
95
95
[no value]
[no value]
RUTLAND FIRE CLAY COMPANY
[no value]
RUTLAND FIRE CLAY COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0183.xml
advertisement
96
96
[no value]
[no value]
National Electric Products Co,
[no value]
National Electric Products Co,
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0184.xml
article
96
96,136
For the Home Owner
[no value]
How to Patch Old Furniture That Sheds Its Veneer
[no value]
[no value]
[no value]
[no value]
MANY all veneered have the furniture mistaken is idea modern. that Veneering was done by Chippendale, one of the first of the famous old furniture masters. He did not veneer his furniture to deceive the purchaser and make him believe it to be made of solid wood, but because it was possible to obtain more beautiful grain and a wider range of figures in veneer.
PopularScience_19281001_0113_004_0185.xml
advertisement
96A
96A
[no value]
[no value]
L. E. Waterman Company: WATERMAN'S
[no value]
L. E. Waterman Company
WATERMAN'S
[no value]
[no value]
PopularScience_19281001_0113_004_0186.xml
advertisement
96B
96B
[no value]
[no value]
NATIONAL CARBON CO., INC.
[no value]
NATIONAL CARBON CO., INC.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0187.xml
article
97
97
For the Home Owner
[no value]
Mounting a Lighter to Stand on Your Smoking Table
[no value]
[no value]
[no value]
Walter E. Burton
AN EFFICIENT, attractive lighter for your smoking stand may be made by providing a pocket lighter with a suitable base. The one illustrated, which includes an ash tray, is but a suggestion of the many designs that may be worked out. Its cost for materials for the mounting was twenty-five cents.
PopularScience_19281001_0113_004_0188.xml
advertisement
97
97
[no value]
[no value]
Western Electric
[no value]
Western Electric
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0189.xml
advertisement
98
98
[no value]
[no value]
Colgate & Co.
[no value]
Colgate & Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0190.xml
article
98
98,100
Ideas for the Handy Man
[no value]
Governor Improves Ford Motor Used as Power Plant
[no value]
[no value]
[no value]
J. H. KOONTZ
MOTORS taken from old Ford cars are frequently used as power plants by farmers. The main objection to this type of motor is its irregular speed under various conditions, but this can be over come by adding a governor. Obtain a governor of the flywheel type (A, Fig. 2) from a discarded gas engine; usually one can be picked up at a junk dealer's yard.
PopularScience_19281001_0113_004_0191.xml
advertisement
99
99
[no value]
[no value]
ROYAL TYPEWRITER COMPANY, INC.: PORTABLE TYPEWRITER
[no value]
ROYAL TYPEWRITER COMPANY, INC.
PORTABLE TYPEWRITER
[no value]
[no value]
PopularScience_19281001_0113_004_0192.xml
advertisement
100
100
[no value]
[no value]
GOODELL-PRATT COMPANY
[no value]
GOODELL-PRATT COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0193.xml
article
100
100
Ideas for the Handy Man
[no value]
Mending Broken Concrete Garden Furniture
[no value]
[no value]
[no value]
O. J. W. HANSEN
BROKEN garden furniture, sundials. bird baths and the like, if made of concrete, may be mended, contrary to common belief, so as to make the line of the break even stronger than when the piece was whole. The fragments should be soaked in water for at least twelve hours.
PopularScience_19281001_0113_004_0194.xml
advertisement
101
101
[no value]
[no value]
INDIAN MOTOCYCLE COMPANY
[no value]
INDIAN MOTOCYCLE COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0195.xml
advertisement
102
102
[no value]
[no value]
NICHOLSON FILE CO.
[no value]
NICHOLSON FILE CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0196.xml
article
102
102
Ideas for the Handy Man
[no value]
Blueprints for Your Home Workshop
[no value]
[no value]
[no value]
[no value]
OUR blueprints can be obtained for 25 cents a sheet. In some cases there are two or three sheets to one subject. The blueprints are complete in themselves, but if you wish the corresponding back issue of the magazine in which the project was described in detail, it can be had for 25 cents additional so long as copies are available.
PopularScience_19281001_0113_004_0197.xml
advertisement
102
102
[no value]
[no value]
Advertisement: Popular Science
[no value]
[no value]
Popular Science
[no value]
[no value]
PopularScience_19281001_0113_004_0198.xml
advertisement
103
103
[no value]
[no value]
The Addison-Leslie Company: PLASTIC WOOD
[no value]
The Addison-Leslie Company
PLASTIC WOOD
[no value]
[no value]
PopularScience_19281001_0113_004_0199.xml
advertisement
104
104
[no value]
[no value]
E. C. ATKINS & CO.
[no value]
E. C. ATKINS & CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0200.xml
article
104
104
Models
[no value]
Wins Three Prizes with Our Models
[no value]
[no value]
[no value]
[no value]
TWO first prizes and the grand prize in a Boy Scout handicraft exhibition at Galesburg. 111., were won by 14-year-old Glade Wilcox, with the models illustrated. One is a 3-ft. flying scale model of the Spirit of St. Louis; the other is a model of the Sovereign of the Seas, a famous clipper ship.
PopularScience_19281001_0113_004_0201.xml
article
104
104
For the Home Owner
[no value]
Shelves Set Up Without Defacing Closet Walls
[no value]
[no value]
[no value]
F. M. D.
BY THE method illustrated, shelving can be installed in the closets of a rented apartment or house without defacing the walls. The shelves can be readily removed at any time. Two supports are assembled as shown with corrugated fasteners, which can be obtained at any hardware store.
PopularScience_19281001_0113_004_0202.xml
advertisement
105
105
[no value]
[no value]
Advertisement: SHAVING CREAM
[no value]
[no value]
SHAVING CREAM
[no value]
[no value]
PopularScience_19281001_0113_004_0203.xml
advertisement
106
106
[no value]
[no value]
OIL HEATING INSTITUTE
[no value]
OIL HEATING INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0204.xml
article
106
106
Ideas for the Handy Man
[no value]
Home Workshop Chemistry
Simple Formulas that Will Save Time and Money
[no value]
[no value]
W.H. HAMMOND
ONE of the simplest yet most valuable chemical tests which the handy man or scientifically minded boy can perform at home is to determine if there is sulphur in gasoline. Sulphur in gas burns in the motor to sulphuric acid vapor, which corrodes and pits the valves and other accessible surfaces.
PopularScience_19281001_0113_004_0205.xml
advertisement
107
107
[no value]
[no value]
MILLERS FALLS COMPANY
[no value]
MILLERS FALLS COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0206.xml
advertisement
108
108
[no value]
[no value]
HARLEY-DAVIDSON MOTOR COMPANY
[no value]
HARLEY-DAVIDSON MOTOR COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0207.xml
article
108
108
For the Home Owner
[no value]
Ash-Pit Sprinkler Reduces Dust in Cellar
[no value]
[no value]
[no value]
Charles B. Carlon
WITH the starting of the house furnace in the fall comes the ash dust nuisance. Every time the ashes are removed, an impalpable and penetrating white cloud spreads through the cellar and often enters by devious cracks into the living-rooms above.
PopularScience_19281001_0113_004_0208.xml
advertisement
109
109
[no value]
[no value]
THORDARSON ELECTRIC MFG. CO.
[no value]
THORDARSON ELECTRIC MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0209.xml
advertisement
110
110
[no value]
[no value]
THE AR-CON TOOL COMPANY
[no value]
THE AR-CON TOOL COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0210.xml
article
110
110
Ideas for the Handy Man
[no value]
Automatic Door Lets Hens Out Early
Coloring Ship Model Chains
[no value]
[no value]
R. C. S.
L. E. SMITH
SUBURBANITES and others who have a few chickens and keep them locked up at night usually find it inconvenient to get out of bed at daybreak to let them out of the chicken house. The chickens, however, can let themselves out if a door or window is fitted with the automatic release illustrated.
PopularScience_19281001_0113_004_0211.xml
advertisement
111
111
[no value]
[no value]
HAMMARLUND MFG. CO.
[no value]
HAMMARLUND MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0212.xml
advertisement
112
112
[no value]
[no value]
SOUTH BEND LATHE WORKS
[no value]
SOUTH BEND LATHE WORKS
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0213.xml
advertisement
112
112
[no value]
[no value]
W. B. & J. E. BOICE
[no value]
W. B. & J. E. BOICE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0214.xml
article
112
112,114,116,132,133
Ideas for the Handy Man
[no value]
Candlestick Turning Reduced to a Few Simple Steps
[no value]
[no value]
[no value]
HERMAN HJORTH
THOSE who articles who in have this followed series have, the previI am sure, acquired a certain measure of skill and confidence with wood-turning tools by this time. They will find faceplate turning, the next phase of the work, not more difficult than spindle turning; and no set of exercises need be mastered before real work can be attempted.
PopularScience_19281001_0113_004_0215.xml
advertisement
113
113
[no value]
[no value]
FIRESIDE INDUSTRIES
[no value]
FIRESIDE INDUSTRIES
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0216.xml
advertisement
114
114
[no value]
[no value]
The Abox Company
[no value]
The Abox Company
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0217.xml
advertisement
114
114
[no value]
[no value]
Proctor & Gamble
[no value]
Proctor & Gamble
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0218.xml
advertisement
114
114
[no value]
[no value]
Advertisements
[no value]
LOFTIS BROS & CO.
Diamond Wedding Ring
LOFTIS BROS & CO.
No.855 Ladies' Wrist Watch
[no value]
[no value]
PopularScience_19281001_0113_004_0219.xml
advertisement
115
115
[no value]
[no value]
The Abox Company
[no value]
The Abox Company
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0220.xml
advertisement
116
116
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0221.xml
advertisement
117
117
[no value]
[no value]
MIDWEST RADIO CORPORATION
[no value]
MIDWEST RADIO CORPORATION
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0222.xml
advertisement
118
118
[no value]
[no value]
Clemson Brothers, Inc.
[no value]
Clemson Brothers, Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0223.xml
advertisement
118
118
[no value]
[no value]
Rutland Fire Clay Co.
[no value]
Rutland Fire Clay Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0224.xml
advertisement
118
118
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0225.xml
advertisement
118
118
[no value]
[no value]
PORTER-CABLE MACHINE CO.
[no value]
PORTER-CABLE MACHINE CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0226.xml
article
118
118
Ideas for the Handy Man
[no value]
Makes Motor-Driven Sprayer for $10
[no value]
[no value]
[no value]
JOHN H. MOHR
THE paint spraying outfit shown in the accompanying illustration cost less than $10 to construct. With it I have done many lacquering jobs, including the finishing of a breakfast set. The 1/6 h.-p. motor is from a washing machine and cost $5 secondhand; it serves for other purposes besides operating the spray.
PopularScience_19281001_0113_004_0227.xml
article
118
118
Ideas for the Handy Man
[no value]
Paper Clips and Pencil Hold Open Reference Books
[no value]
[no value]
[no value]
E. M. QUIMBY
WHEN many notes have to be taken from a book which will not lie flat unless held down or weighted, the volume can be held open by the simple expedient illustrated. Two paper clips are fastened to the leaves on opposite sides and a pencil is run through them.
PopularScience_19281001_0113_004_0228.xml
advertisement
119
119
[no value]
[no value]
Advertisements
[no value]
Bremer-Tully Mfg. Company
B-T 8-21
Bremer-Tully Mfg. Company
B-T 8-20
[no value]
[no value]
PopularScience_19281001_0113_004_0229.xml
advertisement
120
120
[no value]
[no value]
The David Maydole Hammer Co.
[no value]
The David Maydole Hammer Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0230.xml
article
120
120
Ideas for the Handy Man
[no value]
This Radio Cabinet Looks Like a Pirate's Chest
[no value]
[no value]
[no value]
FLOYD E. FREEMAN
ANCIENT looking treasure or pirate chests, which have become so popular for purely decorative purposes, make a novel and excellent type of cabinet for sheltering homemade radio sets. They are of distinctive appearance and allow unusual ease of access to the set itself, especially if built according to some such plan as that illustrated below.
PopularScience_19281001_0113_004_0231.xml
article
121
121,122
Hints for the Mechanic
[no value]
How to Letter and Number Small Round Parts
[no value]
[no value]
[no value]
Henry Simon
H. V. C
ANYONE who has ever attempted to letter small cylindrical work neatly, knows that it is difficult. Otherwise well-made parts are often deficient in this one respect. As a very slight displacement of a single letter is enough to spoil the appearance of a piece, the chances are all against the man who tries to do such work by ordinary means.
PopularScience_19281001_0113_004_0232.xml
advertisement
121
121
[no value]
[no value]
NORTH BROS. MFG. CO.: TANKEE TOOLS
[no value]
NORTH BROS. MFG. CO.
TANKEE TOOLS
[no value]
[no value]
PopularScience_19281001_0113_004_0233.xml
advertisement
122
122
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0234.xml
article
122
122
Hints for the Mechanic
[no value]
How to Extend the Life of Costly Gage Blocks
[no value]
[no value]
[no value]
H. L. W.
PRECISION gage blocks can be saved from wear and their accuracy preserved for a longer time if they are supplemented by a gage of the type illustrated. It is a compact and convenient auxiliary to a set of costly gage blocks, and the toolmaker will find many uses for it.
PopularScience_19281001_0113_004_0235.xml
article
122
122
Hints for the Mechanic
[no value]
Hints on Babbitting Boxes
[no value]
[no value]
[no value]
HAWLEY L. SCOTT
OIL holes into babbitted boxes can be provided, without drilling if tapered wooden plugs are inserted before the babbitt is poured. The plug should have a flat end and be in contact with the babbitting mandrel. Where the boxes are solid, common yellow laundry soap can be rubbed on the shaft before the babbitt is poured.
PopularScience_19281001_0113_004_0236.xml
advertisement
123
123
[no value]
[no value]
Palmolive
[no value]
Palmolive
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0237.xml
advertisement
124
124
[no value]
[no value]
WESTERN CLOCK COMPANY: New Westclox Auto Clock
[no value]
WESTERN CLOCK COMPANY
New Westclox Auto Clock
[no value]
[no value]
PopularScience_19281001_0113_004_0238.xml
advertisement
124
124
[no value]
[no value]
J. C. Haartz Co.
[no value]
J. C. Haartz Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0239.xml
advertisement
124
124
[no value]
[no value]
Advertisement: "MOCAR" Model Airplanes
[no value]
[no value]
"MOCAR" Model Airplanes
[no value]
[no value]
PopularScience_19281001_0113_004_0240.xml
advertisement
124
124
[no value]
[no value]
Advertisement: POPULAR SCIENCE MONTHLY
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
PopularScience_19281001_0113_004_0241.xml
article
124
124
Hints for the Mechanic
[no value]
Pulling Bearing Sleeves
[no value]
[no value]
[no value]
G. A. L.
IN THE sleeve puller illustrated, a plunger engages the grease hole in split sleeves of a type commonly used with certain roller bearings. The plunger has a collar for the spring to push against. A pull rod is provided for use with a crossbar of some kind, which rests against the housing.—(G. A. L.
PopularScience_19281001_0113_004_0242.xml
advertisement
125
125
[no value]
[no value]
THE CARBORUNDUM COMPANY
[no value]
THE CARBORUNDUM COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0243.xml
advertisement
126
126
[no value]
[no value]
TRIMONT MFG. CO., INC.
[no value]
TRIMONT MFG. CO., INC.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0244.xml
advertisement
126
126
[no value]
[no value]
M. HOHNER, Inc.
[no value]
M. HOHNER, Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0245.xml
advertisement
126
126
[no value]
[no value]
The Parks Woodworking Machine Co.
[no value]
The Parks Woodworking Machine Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0246.xml
advertisement
126
126
[no value]
[no value]
MANN & BENTON
[no value]
MANN & BENTON
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0247.xml
article
126
126
Hints for the Mechanic
[no value]
Tailstock Centering Attachment for Large Lathe
[no value]
[no value]
[no value]
[no value]
THREE hundred forged nickel-steel shafts, 2 1/2 in. in diameter and 5 ft. long, had to be cut to length, faced and centered, preparatory to a turning operation which required first-class workmanship and high production. The only machine available that would take them through the spindle was an old 24-in.
PopularScience_19281001_0113_004_0248.xml
article
127
127
Hints for the Mechanic
[no value]
Wood and Babbitt Used to Make Steady Rest
[no value]
[no value]
[no value]
[no value]
SOME unusual problems were presented in the machining of a cast-iron roll forming part of a special machine, and the ingenious methods applied by the machinist may be of interest and help to other mechanics. When delivered to the machine shop, the casting for the roll was found to have very little stock for finishing, and the hole was not true with the outside.
PopularScience_19281001_0113_004_0249.xml
article
127
127
Hints for the Mechanic
[no value]
Plug Gage and Arbor
[no value]
[no value]
[no value]
H. J. C.
IN MAKING bushings for drill jigs or similar work, the combined plug gage and arbor illustrated will save much time. It should be made of tool steel, hardened, or of machine steel, pack hardened.—H. J. C.
PopularScience_19281001_0113_004_0250.xml
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127
127
[no value]
[no value]
j. D. Wallace & Co.
[no value]
j. D. Wallace & Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0251.xml
advertisement
128
128
[no value]
[no value]
C. G. Conn. Ltd.
[no value]
C. G. Conn. Ltd.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0252.xml
advertisement
128
128
[no value]
[no value]
Remington Arms Company, Inc.
[no value]
Remington Arms Company, Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0253.xml
advertisement
128
128
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19281001_0113_004_0254.xml
article
128
128
Ideas for the Handy Man
[no value]
How to Clean Paint and Lacquer Brushes
[no value]
[no value]
[no value]
GRAHAM STUCKEY
LACQUER brushes should be wiped out as dry as possible after use, then shaped up and allowed to dry. When ready to vise them again, soak them in lacquer thinner. If one brush is to be used in several colors, it must be thoroughly cleaned when colors are changed.
PopularScience_19281001_0113_004_0255.xml
article
129
129
Ideas for the Handy Man
[no value]
Paper Parachute Floats Long Distances
[no value]
[no value]
[no value]
H. S.
BY VIRTUE of its saucer shape and lightness, this tissue paper toy parachute will float a considerable distance in a light breeze when released from a second-story window. A square of any fairly tough tissue paper will serve. Make it as large as your paper will allow, or paste four squares together.
PopularScience_19281001_0113_004_0256.xml
advertisement
129
129
[no value]
[no value]
LE PAGE'S CRAFT LEAGUE
[no value]
LE PAGE'S CRAFT LEAGUE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0257.xml
advertisement
130
130
[no value]
[no value]
SMOOTH-ON MFG. CO.
[no value]
SMOOTH-ON MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0258.xml
advertisement
130
130
[no value]
[no value]
Santa Fe Watch Company
[no value]
Santa Fe Watch Company
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0259.xml
advertisement
130
130
[no value]
[no value]
Bucscher Band Instrument Co.
[no value]
Bucscher Band Instrument Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0260.xml
article
130
130
Ideas for the Handy Man
[no value]
Hints on Rubbing Down Varnish and Enamel
[no value]
[no value]
[no value]
[no value]
AFTER expending much effort in building a piece of furniture or other cabinetwork and applying several coats of varnish, many home workers make the mistake of leaving the finish in a high gloss. The piece has a certain crude, glaring look, and if there are any imperfections whatever, each one seems to be magnified.
PopularScience_19281001_0113_004_0261.xml
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131
131
[no value]
[no value]
SOUTH BEND LATHE WORKS
[no value]
SOUTH BEND LATHE WORKS
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0262.xml
advertisement
131
131
[no value]
[no value]
International Correspondence Schools
[no value]
International Correspondence Schools
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0263.xml
advertisement
132
132
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0264.xml
article
133
133
For the Home Owner
[no value]
How to Preserve Hardware
[no value]
[no value]
[no value]
V. G. WARREN
HINGEWS, locks and other hardware for use in the bathroom, laundry, kitchen, and other rooms where there is considerable condensation of moisture, should never be of iron or steel unless well protected against rust by paint, enamel, or galvanic coating. Plated ware will seldom stand up in such places unless the plate is exceptionally heavy.
PopularScience_19281001_0113_004_0265.xml
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133
133
[no value]
[no value]
WacoTooI Works, Inc.
[no value]
WacoTooI Works, Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0266.xml
advertisement
133
133
[no value]
[no value]
SPORT FACTORIES
[no value]
SPORT FACTORIES
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0267.xml
advertisement
133
133
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0268.xml
advertisement
133
133
[no value]
[no value]
WEATHERBEST STAINED SHINGLE CO., Inc.
[no value]
WEATHERBEST STAINED SHINGLE CO., Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0269.xml
advertisement
134
134
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0270.xml
advertisement
135
135
[no value]
[no value]
INTERNATIONAL RESISTANCE CO.
[no value]
INTERNATIONAL RESISTANCE CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0271.xml
advertisement
136
136
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0272.xml
article
136
136
Ideas for the Handy Man
[no value]
How to Fit a Support for a Desk Lid
[no value]
[no value]
[no value]
[no value]
IF A lid support is fitted by the trial and error method, it is quite certain that the lid where plate A is attached, or the desk at screw B, or both, will be marred during the process. This particular type of lid support, nevertheless, can be more easily fitted than some other styles and it may be used at either the right or the left end of the lid.
PopularScience_19281001_0113_004_0273.xml
advertisement
137
137
[no value]
[no value]
BURGESS BATTERY COMPANY
[no value]
BURGESS BATTERY COMPANY
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0274.xml
advertisement
137
137
[no value]
[no value]
The Geo. W. Walker Company
[no value]
The Geo. W. Walker Company
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0275.xml
advertisement
138
138
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0276.xml
advertisement
139
139
[no value]
[no value]
ELECTRAD, Inc.
[no value]
ELECTRAD, Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0277.xml
advertisement
139
139
[no value]
[no value]
Delta Specialty Company
[no value]
Delta Specialty Company
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0278.xml
advertisement
140
140
[no value]
[no value]
ELKON, Inc.
[no value]
ELKON, Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0279.xml
advertisement
140
140
[no value]
[no value]
ARKOGRAF PEN CO.
[no value]
ARKOGRAF PEN CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0280.xml
advertisement
140
140
[no value]
[no value]
PARAMOUNT MANUFACTURING CO.
[no value]
PARAMOUNT MANUFACTURING CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0281.xml
advertisement
140
140
[no value]
[no value]
Midland Appliance Corporation
[no value]
Midland Appliance Corporation
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0282.xml
advertisement
141
141
[no value]
[no value]
Von Hoffmann Aircraft School
[no value]
Von Hoffmann Aircraft School
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0283.xml
advertisement
141
141
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0284.xml
advertisement
141
141
[no value]
[no value]
FRANKLIN INSTITUTE
[no value]
FRANKLIN INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0285.xml
advertisement
142
142,144,146
[no value]
[no value]
Money Making Opportunities
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0286.xml
advertisement
143
143
[no value]
[no value]
THE AMERICAN SCHOOL
[no value]
THE AMERICAN SCHOOL
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0287.xml
advertisement
145
145
[no value]
[no value]
National Radio Institute
[no value]
National Radio Institute
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0288.xml
advertisement
147
147
[no value]
[no value]
NATIONAL SCHOOL OF VISUAL EDUCATION
[no value]
NATIONAL SCHOOL OF VISUAL EDUCATION
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0289.xml
advertisement
148
148
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0290.xml
article
148
148
Ideas for the Handy Man
[no value]
Dummy Books Make Neat Book Ends
[no value]
[no value]
[no value]
J. G.
BOOKS placed between book ends or in a rack made as illustrated seem to be standing without visible support. That is because the end volumes are dummies glued and screwed to the base pieces. Choose two attractive old books, preferably leather bound, of about the same size—there is always a large choice of such volumes at a secondhand book store—and discard everything but the covers.
PopularScience_19281001_0113_004_0291.xml
article
148
148
Ideas for the Handy Man
[no value]
Orange Crates Serve as Bins in Cellar Shop
[no value]
[no value]
[no value]
G. A. W.
ONE end of my cellar is completely outfitted with shelves divided into compartments. They were erected in less than half an hour's time and at practically no cost, because they consist of orange crates stacked one on top of the other and braced with narrow boards on each end of each tier of boxes.
PopularScience_19281001_0113_004_0292.xml
article
148
148
Models
[no value]
Tiny Saw for Model Making
[no value]
[no value]
[no value]
H. W
FOR work on ship and airplane models a small saw is frequently needed. One can be made for cutting either wood or metal from a piece of hack saw ground to a tapering point.—H. W.
PopularScience_19281001_0113_004_0293.xml
advertisement
149
149
[no value]
[no value]
Central States Mfg. Co.
[no value]
Central States Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0294.xml
advertisement
150
150
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0295.xml
advertisement
151
151
[no value]
[no value]
RADIO INSTITUTE OF AMERICA
[no value]
RADIO INSTITUTE OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0296.xml
advertisement
152
152
[no value]
[no value]
American School
[no value]
American School
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0297.xml
advertisement
153
153
[no value]
[no value]
COTNE ELECTRICAL SCHOOL
[no value]
COTNE ELECTRICAL SCHOOL
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0298.xml
advertisement
154
154
[no value]
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0299.xml
advertisement
154
154
[no value]
[no value]
Sterling Diamond & Watch Co., Inc.
[no value]
Sterling Diamond & Watch Co., Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0300.xml
advertisement
154
154
[no value]
[no value]
University of Applied Science
[no value]
University of Applied Science
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0301.xml
advertisement
155
155
[no value]
[no value]
FEDERAL SCHOOL OF ILLUSTRATING
[no value]
FEDERAL SCHOOL OF ILLUSTRATING
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0302.xml
advertisement
156
156
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0303.xml
advertisement
157
157
[no value]
[no value]
L. L. COOKE
[no value]
L. L. COOKE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0304.xml
advertisement
157
157
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0305.xml
advertisement
157
157
[no value]
[no value]
FRANKLIN INSTITUTE
[no value]
FRANKLIN INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0306.xml
advertisement
158
158
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0307.xml
advertisement
159
159
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0308.xml
advertisement
160
160
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0309.xml
advertisement
161
161
[no value]
[no value]
VICTOR J. EVANS & CO.
[no value]
VICTOR J. EVANS & CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0310.xml
advertisement
162
162
[no value]
[no value]
MUNN & CO.
[no value]
MUNN & CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0311.xml
advertisement
162
162
[no value]
[no value]
ROBERTSON FLYING SERVICES, Inc.
[no value]
ROBERTSON FLYING SERVICES, Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0312.xml
advertisement
162
162
[no value]
[no value]
McCarrie School of Mechanical Dentistry
[no value]
McCarrie School of Mechanical Dentistry
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0313.xml
advertisement
163
163
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0314.xml
advertisement
164
164
[no value]
[no value]
THE PELMAN INSTITUTE OF AMERICA
[no value]
THE PELMAN INSTITUTE OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0315.xml
advertisement
164
164
[no value]
[no value]
G. & C. MERRIAM CO.
[no value]
G. & C. MERRIAM CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0316.xml
advertisement
164
164
[no value]
[no value]
BABY CALCULATOR SALES CO.
[no value]
BABY CALCULATOR SALES CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0317.xml
advertisement
165
165
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0318.xml
advertisement
166
166
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0319.xml
advertisement
167
167
[no value]
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0320.xml
advertisement
167
167
[no value]
[no value]
Cleveland Auto School
[no value]
Cleveland Auto School
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0321.xml
advertisement
167
167
[no value]
[no value]
American Correspondence School of Law
[no value]
American Correspondence School of Law
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0322.xml
advertisement
167
167
[no value]
[no value]
Sherwin Cody School of English
[no value]
Sherwin Cody School of English
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0323.xml
advertisement
168
168
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0324.xml
advertisement
169
169
[no value]
[no value]
Tree Expert Co., Inc.
[no value]
Tree Expert Co., Inc.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0325.xml
advertisement
169
169
[no value]
[no value]
CLARKE SANDING MACHINE CO.
[no value]
CLARKE SANDING MACHINE CO.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0326.xml
advertisement
169
169
[no value]
[no value]
AMERICAN SCHOOL OF AVIATION
[no value]
AMERICAN SCHOOL OF AVIATION
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0327.xml
advertisement
170
170
[no value]
[no value]
Pilot Lincoln
[no value]
Pilot Lincoln
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0328.xml
advertisement
170
170
[no value]
[no value]
Standard Business Training Inst.
[no value]
Standard Business Training Inst.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0329.xml
advertisement
170
170
[no value]
[no value]
B.W.COOKE
[no value]
B.W.COOKE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0330.xml
advertisement
170
170
[no value]
[no value]
FRANKLIN INSTITUTE
[no value]
FRANKLIN INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0331.xml
advertisement
171
171
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0332.xml
advertisement
172
172
[no value]
[no value]
THE STUDEBAKER CORPORATION OF AMERICA
[no value]
THE STUDEBAKER CORPORATION OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0333.xml
article
172
172
Aviation
[no value]
Banks Save Money by Air Mail
[no value]
[no value]
[no value]
[no value]
In a single month twenty New York banks forwarded checks totalling sixty million dollars by air mail between New York, Cleveland, and Chicago, saving $5,730 in interest.
PopularScience_19281001_0113_004_0334.xml
advertisement
173
173
[no value]
[no value]
American Transformer Company
[no value]
American Transformer Company
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0335.xml
advertisement
174
174
[no value]
[no value]
L C Smith & Corona Typewriters Inc
[no value]
L C Smith & Corona Typewriters Inc
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0336.xml
advertisement
175
175
[no value]
[no value]
Electrol Inc. of Missouri
[no value]
Electrol Inc. of Missouri
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0337.xml
advertisement
176
176
[no value]
[no value]
NATIONAL CARBON CO., INC.
[no value]
NATIONAL CARBON CO., INC.
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0338.xml
advertisement
177
177
[no value]
[no value]
GENERAL ELECTRIC
[no value]
GENERAL ELECTRIC
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0339.xml
advertisement
178
178,179,180
[no value]
[no value]
RADIO CORPORATION OF AMERICA
[no value]
RADIO CORPORATION OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19281001_0113_004_0340.xml