Issue: 19260201

Monday, February 1, 1926
FEBRUARY 1926
2
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108
Friday, December 26, 2014

Articles
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Popular Science
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ALL-AMERICAN RADIO CORPORATION
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ALL-AMERICAN RADIO CORPORATION
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THU SIXTH SENSE OF INDUSTRY
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THU SIXTH SENSE OF INDUSTRY
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Don’t Miss These Features
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FEBRUARY, 1926; Vol. 108, No. 2 25 cents a Copy; $2.50 a Year IF YOU are one of 60,000 readers who followed John and Mary Newlywed through their homemaking troubles in our great $10,000 “What’s Wrong” Picture Contest, you will be glad to know that we are presenting this fascinating young couple in a brand new contest, beginning with next month’s issue.
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And 200 Other Articles and Pictures, including
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UPSON BOARD
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UPSON BOARD
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Popular Science
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Popular Science
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PopularScience_19260201_0108_002_0008.xml
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FEDERAL TELEGRAPH COMPANY
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FEDERAL TELEGRAPH COMPANY
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The Answer to "WHICH RADIO SET SHALL I BUY?”
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“BUYING a radio set is like picking a second-hand car—you don’t know what you are getting!” Unfortunately, there is a lot of truth in this statement, which was overheard recently by a member of the Popular Science Institute staff. Two passengers on a commuters’ train to New York were engaged in a discussion of the difficulties and pitfalls involved in purchasing a radio receiving set.
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RADIO CORPORATION OF AMERICA
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RADIO CORPORATION OF AMERICA
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NATIONAL CARBON CO., INC.
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NATIONAL CARBON CO., INC.
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Keep Your Mind Young
AN EDITORIAL
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S. N. B.
THE father, smug and satisfied, was speaking. The son, animated and imaginative, listened attentively. About us was the noonday clatter of a big restaurant. “And you believe you can can the heat of the sun? Absurd! Why, you are only twenty-one years old and experts haven’t been able to do it!’’
PopularScience_19260201_0108_002_0015.xml
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A. H. Grebe &. Co., Inc.
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A. H. Grebe &. Co., Inc.
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masthead
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POPULAR SCIENCE MONTHLY
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11,12
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New Wasp-Planes Look Like Toys, but Spit Death
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Corley Mc Darment
A SHORT time ago, people who live near the salt water district of the Virginia peninsula between the York and the James rivers heard an unusual sound in the sky. They were accustomed to hearing the noise of airplanes. The Army, Navy, and Marine corps all have had flying fields in that vicinity. But this noise was different.
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How Fast Can Your Mind Work?
Have You Imagination?
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ON THESE pages are five fascinating tests, designed to measure and improve your mind. Certainly you would like to know how fast and how well your mind works; it will be of inestimable value to you to learn in what direction your mind operates best; that is, just what your especial talents are and in what line of work you are most likely to excel.
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One Man Submarine Dives 500 Feet
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ADIVING suit weighing half a ton and equipped with electric lights and a telephone was used recently for the first time in the open sea in efforts to salvage the British submarine, M-1, sunk in 240 feet of water in the English Channel. German inventors volunteered the use of the apparatus which, tests showed, could be used in 500-foot depths.
PopularScience_19260201_0108_002_0020.xml
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16,17,18,134,135,136
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He Wouldn’t Trade Jobs with the President!
Fifty Years a Coal Miner, David Jones Finds a New Thrill in His Work Every Day—His Narrow Escapes
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ARTHUR GRAHAME
WE’LL soon be out of this, then,” said old David Jones, rolling a disparaging gray eye over the drab murk of storm cloud and cold slanting rain that filled the Wyoming Valley of eastern Pennsylvania’s anthracite coal region. “Underground it’s always fair weather, cool enough in summer and warm enough in winter for a man to do his work in comfort.
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19,137,138,139,140
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From a Weakling to a Hercules
As Told to Arthur A. Stuart
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FLORENZ ZIEGFELD
A DELICATE, curly-haired lad of 10 stood with his father before the marble statues of ancient gods and heroes in Rome. Wide-eyed, he marveled at the sculptured ideals of manly power and physical perfection. He compared his own pitifully frail body—the frame of a weakling—with the bulging muscles and beautiful symmetry of the heroic figures before him.
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20,21,149,150
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They Laughed at Him, but He Gave Us the Telephone
The Story of a Young Inventor Who Wouldn't Stay Discouraged
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EDGAR C. WHEELER
THERE is a favorite story about the young Alexander Graham Bell. Just 50 years ago, Bell’s first crude baby telephone had been placed on exhibition in an out-of-the-way corner of the Centennial ExposiStion in Philadelphia, while its struggling young creator remained in Boston, “broke.”
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Stars Move across Concrete Heavens
A Remarkable New Way to Teach Wonders of Astronomy
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NEWTON BURKE
YOU enter a large dome-shaped concrete building. It is dark. Suddenly, thousands of glittering stars appear in what seems to be the infinite sky. More marvelous, suns and planets begin their majestic march across the heavens. In a few moments intricate celestial motions are revealed so simply that you, who perhaps have never opened an astronomy book, can understand mysteries of the universe that puzzled scientists for centuries.
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23,24,25
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My Rope Escapes
You Can Mystify Your Friends with These Simple Tricks with Knots
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Houdini
SINCE publication of my series in POPULAR SCIENCE MONTHLY began, I have received many letters from readers who are interested in magic. Almost invariably the writers of these letters have asked me to explain the methods used by certain magicians in performing specific tricks or illusions.
PopularScience_19260201_0108_002_0025.xml
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It May Pay You to Burn Oil
The Merits of This Fuel over Coal for Your Furnace Are Carefully Set Forth by an Expert
Radio “Fading” Persists
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COLLINS P. BLISS
ANY man can keep his house warm with coal—if he can get the coal. But modern science now has come to the front with a system of house heating that may revolutionize the home life of whole communities. Coal shortages will no longer worry any one.
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27,28.
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Do We Wear Too Much Clothing?
Tight, heavy garments a barrier to health, declare experts—Why millions in Europe go naked in the sunshine
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ROBERT E. MARTIN
THEY are having a crusade in Europe. The battle cry is “Off with clothing!” Three million persons, it is reported, have joined a nudity cult. They are swimming without bathing suits, running naked over the hills, and doing calisthenics without a thread of clothing.
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Can the Eagle Fly with the Best of Them?
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PETER VISCHER
THROUGH the maze of conflicting reports concerning the air power of the United States, as compared with that of other great nations, comes the recent assurance from high military authorities that Uncle Sam is holding his own. These same' authorities contend that this nation could, with a concentrated spurt, reach an equality with any rival.
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We Will Pay $1000 Cash Each Month in a New and Fascinating
Prize Contest
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S.N.B.
WE WERE talking about a famous American. Said my friend: “He is the most interesting man I know because he is so darned helpful.” That phrase, so darned helpful, stuck in my mind. In the letters about our $10,000 contest on the homemaking problems of John and Mary Newlywed, I found the phrase again.
PopularScience_19260201_0108_002_0029.xml
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31,32,142
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A New List of Prize-Winners
Judges Announce 68 Further Awards in Our Great $10,000 “WHAT’S WRONG” CONTEST
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DOES it pay to keep trying? Ask Ethan W. Vars, a young machine designer of Erie, Pa. Last June Mr. Vars entered POPULAR SCIENCE MONTHLY’S great $10,000 “What’s Wrong” Contest. In the first of the four Monthly Contests he made three mistakes in his answers.
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The New Electric Phonograph
A Remarkable Instrument Born of Radio
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THE marvelously exact methods of reproduction of human voices and musical instruments made possible through engineering research to improve the quality of radio reception now have been applied to the recording and reproduction of talking-machine records.
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Hunts Big Game with Arrows
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IN THE party of twentieth century Robin Hoods who, with Stewart Edward White, noted author, have been hunting lions and other big game with bow and arrow in Africa, there probably is none more fearless than Arthur Young, one of the most skilful of American archers.
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The Strangest Firemen in the World
Experts Who Never Rode an Engine or Climbed a Ladder—How They Protect Our Lives and Property—Some Odd Ways Mysterious Fires Start
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G. B. SEYBOLD
TWO hundred expert firemen, who never ride an engine or climb a swaying ladder, spend their days in a strange building in Chicago protecting lives and property. Some in oilskins and boots play huge streams of water on roaring flames. Others are unlike any other firemen you have ever seen—young men who devote their lives to pouring chemicals in test tubes or reading delicate instruments.
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Nature’s Dumbest Genius
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CARL SHOUP
A FAMOUS naturalist once decided to test the maternal affection of the spider. With a pair of pincers he tried to take from her the silk bag that she dragged along behind her and that contained her eggs, soon to be hatched. She resisted bitterly, hugging the sack up under her abdomen.
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A Cozy Home Anyone Can Build
New Type of Knockdown House Is Simple to Construct
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IN AN endeavor to solve the housing problem for the man of moderate means, M. Marcou, an attorney of Versailles, France, has hit upon the idea of an ingenious new type of “knockdown” house that, he says, can be erected for a few hundred dollars and that any man of average intelligence can build without expert knowledge.
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Rungs on the Ladder of Science
Laying Track by Electricity
Colored Glass for Concrete
“Letter Boxes” for Air Mail
A Boom in “Bugs”
To Farm the Ocean
Why Typists’ Shoulders Ache
That Elusive Vitamine A
Noxious Plant Proves Valuable
Historic Stones from England
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A FEW months ago a crew of 60 men made a remarkable record, laying track on a railroad in the Ozarks in Missouri. They averaged 130 rails, or about half a mile of new track, in a day. But the other day a gang of only 45 men on the same railroad put down this many rails in one hour!
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He Made the Movies Possible
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EYERY time Jean A. Le Roy sees a movie, he thinks of what might have been. He might be rolling about in a magnificent car, he might have his own yacht, he might summer in the mountains and winter on the Riviera. He might send to Uncle Sam each year income taxes in many figures.
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New Bank Counter Does Away with Tellers’ Cages
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A NOVEL type of bank counter is offered as an antidote for holdups, by John Poole, president of a bank in Washington, D. C., where one recently has been installed. It has a top with two levels. The first level is a ledge on the customers’ side, used for counting and writing.
PopularScience_19260201_0108_002_0039.xml
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When the Cruel Ocean Takes Its Toll
The Liner "Lenape" Burned at Sea
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THE S.S. Lenape, a Clyde liner, was on fire 10 miles off the Delaware Breakwater. Twenty ships were within call of radio, but the captain was afraid that they could not reach him in time. He drove the burning ship in a race of 30 miles; but when he reached the shelter of the breakwater, the boat blazed from end to end.
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A Machine for Upholstering
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SOMETIMES there is a reason for your upholstered chair sagging on one side other than the fact that you stepped on it to adjust the curtains. When the chair was upholstered, one of the webbing straps may not have been pulled as tightly as the others, and the weight of a person sitting in the ehair would gradually lessen the tension of the strap in that spot.
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Combustible for Fireproofing
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IT SEEMS decidedly paradoxical that a substance that is combustible could be used for fireproofing, yet such is the case. Experience has shown that even a small fire in a telephone exchange or central station, where many wires converge, may cause great damage to the wires and, consequently, a serious disorganization and interruption of the service.
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How Helium Is Purified
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HELIUM, the inert gas that is used for filling the lifting bags of dirigible balloons, such as the Los Angeles, is obtained from natural gas and other sources. It is delivered to the government in steel cylinders that contain the gas in a state of high compression.
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Ingenious Cigarette Holder Prevents Paper Burning
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THIS cigarette holder is designed to prevent the paper from burning. To the mouthpiece is attached an aluminum frame that keeps the paper in contact with it from burning, while the tobacco burns as usual. A special holder for the device clips in the breast pocket like a fountain pen or a pencil.
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Novel Bank in a Bank Book
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HERE is a new scheme to help you hang on to the elusive dime. This time it is a slip cover for a bank pass book. A pocket holds a coin retainer, kept in place by a sealing label. When the retainer is filled, it is taken to the bank, where the seal is broken, and the teller puts the whole sum into the bank before you can spend it.
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Taking the Ocean’s Measure
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WAVES higher than the ship, towering like mountains”—you have read about them and heard ocean travelers describe them. Perhaps you actually have seen them. But be careful what you say about them, for now scientists will check up on your statements.
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Electric Massage Machine Goes in Pocket
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NOW you can carry your own electric massage machine in your pocket. Even if you are separated from an electricity supply, you still can have your daily massage treatment for rheumatism, lumbago, or other aches. The ingenious little machine illustrated can be made to give either a heavy or light electric massage by simply running it over the skin.
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Balloon-Tired Army Tractor Travels at High Speed
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BALLOON tires now have invaded the army. The above photograph shows the “Hathi,” a new four-wheel drive tractor adopted recently by the British Army after exhaustive trials. It is seen here drawing an anti-aircraft gun. Both the tractor and the gun are equipped with the big, smooth-running tires.
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Long Distance Electric Power
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ELECTRIC power recently was transmitted from British Columbia to the State of Washington to help make up a shortage of power due to lack of rain in the Pacific Northwest this fall.
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Invents a Shield for Doors
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WHEN you have to move your furniture from room to room, it might be well to adopt Joe Wilcox’s idea. Joe Wilcox is an employee of the Metropolitan Building Company of Seattle, Wash. He invented a protection for door jambs and furniture that has saved a lot of damage.
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A “Pep” Harp for Jazz Music
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THE young lady in the picture at the left is playing the newest musical instrument. Where did this strange musical hybrid come from? The whang is reminiscent of Honolulu, but the shape is unique. The tone, which is altogether new, is said to be just the thing to put more “pep” into jazz music.
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A Flat Hook for Corks
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BRITTLE corks that crumble when attacked by a corkscrew are nuisances, but the fault lies in the use of heavy corkscrews, according to a French inventor. He has perfected a flat hook that will pull out corks whole as well as easily, he says. The flat hook is slipped into the bottle neck beside the cork, then turned halfway.
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Some Facts about Carbon
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BEFORE the days of dynamos and electrical furnaces it was believed that carbon in its various forms, as coal, graphite or diamond, could not be melted. It was thought that carbon, exposed to heat, would pass from the solid to a gaseous state without melting, forming various distillation products, principally in combination with hydrogen or, in the presence of air, combine with its oxygen, forming one or more of the gaseous oxides.
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New Wonders in Air Travel
Now You Can Buy a Car in the Sky, Dine in an Airplane Restaurant or Fly Your Own Flivver
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HERE is an interior view of the newest thing on wings—a real automobile salesroom housed in one of the largest commercial airplanes in the world. This monster plane pictured below has a wing spread of 87 feet. The attractive interior is fitted with all the necessary furniture of a successful automobile salesroom, and the first aerial typist is shown seated at her desk.
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An “Out of Order” Railway Crossing Signal
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A RAILWAY crossing signal that fails to work is often more dangerous than none at all. By relying on an automatic signaling system, often the driver of a car will not “stop, look, and listen,” as he might were no signal there. A railroad on the Pacific coast, recognizing the danger of failure on the part of warning signals, has equipped its signals with a conspicuous red blade bearing the words “Out of Order.” Ordinarily this auxiliary sign remains hidden behind a shield, but in the event of any electrical or mechanical failure of the device, it drops into position through gravity.
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Musical Stenography Invented
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A SWISS, M. Henry Reymond, has devised a system of musical stenography that promises to solve a problem that for more than 100 years has perplexed musical thinkers. The system would enable any one conversant with it to sit at a concert and note down the full orchestrated score.
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One Man Can Operate This Rail Saw
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RAILS can be cut right on the railway track with this new portable hacksaw. The ordinary hand frame used for this work requires two men, and blades often are broken in the work. With this portable machine, weighing only 125 pounds, one man can cut through a rail, it is claimed, in from 30 to 45 minutes.
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Any Light Socket Runs This Saw
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MANY a man will wax enthusiastic over the compact electric saw shown to the right. It has an eight-inch saw and a table that is about 14 by 22 inches. The three-quarter-horsepower motor can be run from an ordinary electric-light socket. If it is desired to cut other materials beside wood, carborundum wheels are used.
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Automatic Match Plugs into Any Electric-Light Circuit
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AS ANY man will assure you, matches are the most elusive articles that complicate our every-day existence. Now an electric match has been invented, and, provided it is plugged into the light socket, is continually handy. The manufacturers of this boon to smokers say it is the only lighter that will light and relight a pipe. It lights cigars and cigarettes just as easily. As it is made in an attractive style, it is suitable for any room in the house or for the auto, where it can be plugged into the electric system.
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New Solder Cup Protects Men Doing Overhead Work
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WORKMEN doing electrical work overhead frequently suffer from bad burns received from hot solder falling on their hands. The tool illustrated here solders by the dipper method. Hot solder will not spill because the swiveled cup always remains vertical and all surplus solder that falls from the joint before setting is caught by it.
PopularScience_19260201_0108_002_0060.xml
article
48
48
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Reveal Ancient Plant Life
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COAL balls, curious round lumps of stone formed around bits of fossil plants in the coal seams, afford valuable material for the study of the evolution of ancient plant life. The plant remains formed the nuclei or centers of deposition around which the stony material in solution in the water was laid down many ages ago.
PopularScience_19260201_0108_002_0061.xml
article
49
49
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Leather Filler Mends Shoes without Cobbler’s Aid
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BLACKSMITHS have almost disappeared. Is it now the cobbler’s turn? It would seem so, if mankind takes to mending its own shoes with a new leather filler that comes in a tube. The filler is poured on the worn part of a shoe and shaped by the fingers to the correct form. Ten minutes’ exposure to the air dries the liquid and it becomes an artificial leather that is said to be more lasting and weatherproof than natural leather.
PopularScience_19260201_0108_002_0062.xml
article
49
49
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New Device Opens Bottle and Catches the Cap
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POP-BOTTLE caps have a way of being thrown on the floor. Here is a new device, recently invented by John B. Frisone, that can be fastened to the wall and both opens the bottle and catches the cap. The caps fall into a drawer, which can be pulled out and emptied.
PopularScience_19260201_0108_002_0063.xml
article
49
49
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New Printing Machine for Photographers
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SOMETHING absolutely new in printing apparatus for photographs has been invented by Commodore Matthew Steffins of Chicago. Attached to the machine is a cooling device that expels warm air from the printing chamber and admits cool air. This prevents the glass on which the films or plates are placed from getting hot, and permits of more prints being made.
PopularScience_19260201_0108_002_0064.xml
article
49
49
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Electric Iron for Awkward Corners and Frills
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ALL laundresses know how difficult it is to get a flatiron into the corners of some garments. Their problem has been solved by a narrower, more pointed iron with a horizontal handle that easily slips into awkward shoulders, around delicate lace, and among fine gathers.
PopularScience_19260201_0108_002_0065.xml
article
49
49
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To Study Walking Mechanics
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THE mechanics of walking is the latest subject to be investigated at Yale University. Scientists are attempting to learn how the walking bones, muscles, and tendons are coordinated in order to arrive at a uniform and accurate standard for foot examination.
PopularScience_19260201_0108_002_0066.xml
article
49
49
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Latest Model in Safety Subway Cars
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A NEW type of subway train, the latest model cars for rapid transit, was put in operation in New York City recently. Less noise, improved ease in riding, and more room for passengers are claimed for it by the manufacturers. In addition, danger of accident from falling from platform passageways is eliminated.
PopularScience_19260201_0108_002_0067.xml
article
50
50
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How Rubber Is Strained to Make Insulation
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IN MANUFACTURING rubber insulation the large strainer shown in the picture is used to take out impurities. The process is as follows: First, pure crude rubber is mixed with other ingredients in a large masticator. It then is run through a sheeting mill, after which it goes into the strainer.
PopularScience_19260201_0108_002_0068.xml
article
50
50
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Sanitary Bottle Has a Stopper that Fits like a Screw
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ONE of the newest and most useful bottles has a thread top that accommodates a stopper made like a screw. It also is fitted with a washer, thus making the bottle airtight and suitable as a container for liquids that quickly evaporate if not stoppered securely.
PopularScience_19260201_0108_002_0069.xml
article
50
50
[no value]
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Roof Signs to Guide Fliers
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FOLLOWING a suggestion of the Army Air Service, the Standard Oil Company of California recently ordered the names of towns and cities to be painted on the roofs of its warehouses, as a guide to aviators. The names will be painted in 12-foot letters, so that a pilot can ascertain his location at a glance.
PopularScience_19260201_0108_002_0070.xml
article
50
50
[no value]
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To Get the Very Last Bit Out of a Paste Tube
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TO SQUEEZE every bit out of the tube of tooth paste, shaving cream, or library paste, a new container for the tube has been designed by a Texas inventor. The tube is wound up from the bottom with a key that extends through a slot at the side. A further convenience is a special holder attached to the chute.
PopularScience_19260201_0108_002_0071.xml
article
50
50
[no value]
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Narrow Tapered Nose Pliers— a New Combination Tool
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A COMBINATION pliers recently has been designed not only for the ordinary uses about the house and yard, but also for more delicate work, such as radio construction. For the latter purpose the tool is made with a thin, tapering nose that makes it possible to reach otherwise inaccessible places.
PopularScience_19260201_0108_002_0072.xml
article
50
50
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The Thinnest Thing in the World—Almost Invisible
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PERHAPS the .thinnest thing in the world is the goldleaf lettering on books and memo pads. It is usually only 1/280,000 of an inch in thickness. One ounce of gold will make goldleaf 200 feet square. Taking a narrow gold bar 12 inches in length, an inch broad, and half an inch thick, an expert workman rolls out by hand a ribbon 525 feet long, which he cuts into one-inch squares.
PopularScience_19260201_0108_002_0073.xml
article
50
50
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New Putter to Delight Golf Enthusiasts
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MANY a golf enthusiast has longed for a putter that he can sight like a gun. Such a putter, said by its sponsor to be the most deadly of its species, has been invented by Eddie Nunn, a member of the Northern California Professional Golfers’ Association.
PopularScience_19260201_0108_002_0074.xml
article
51
51
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Colored Typewriter Space Bar to Relieve Tired Eyes
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YOU have heard, of course, that if your eyes become tired from close work, it rests them to look away in the distance, and psychologists have said that looking at certain colors is more restful than looking at others. Denhol George, of Chesterfield, England, has applied this principle to a device he claims will relieve typists of eye strain.
PopularScience_19260201_0108_002_0075.xml
article
51
51
[no value]
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Oil Electric Car Breaks Non-Stop Records
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WHAT is said to be the longest nonstop run was completed recently by a new oil electric car designed for the Canadian National Railways, when it completed a trip from Montreal to Vancouver, B. C., a distance of 2937 miles, in 67 hours. Not once during the trip did the engine of the car stop running.
PopularScience_19260201_0108_002_0076.xml
article
51
51
[no value]
[no value]
Gage Determines the Ripeness of an Apple
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MRS. HOUSEWIFE long has known that she could test the ripeness of an apple by pressing the skin with her thumb. Now Uncle Sam has taken over her idea and the Department of Agriculture has devised a scientific substitute for the thumb as used for this purpose.
PopularScience_19260201_0108_002_0077.xml
article
51
51
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No Patient Can Fall Out of This Stretcher
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A REAL safety-first stretcher is this new one devised for use in the U. S. Navy and demonstrated recently at the Navy Day celebration at the Charlestown Navy Yard, Mass. The stretcher is shaped like the half of a mummy case, and the patient cannot possibly fall out of it, no matter how great the bumping of the ambulance or how uneven the steps of the carriers.
PopularScience_19260201_0108_002_0078.xml
article
51
51
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A Device that Whirls the Doctor’s Thermometer
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SHAKE, shake, away it flies, and there is another broken thermometer. It was time that some one invented a way to handle this delicate instrument. The ordinary way is to shake the mercury down in the surgeon’s or physician’s thermometer. Now comes an inventor with a device for whirling the thermometer in place of shaking it. The instrument is attached to a screw-threaded shaft and when the ends of the shaft are pulled, the thermometer spins around it.
PopularScience_19260201_0108_002_0079.xml
article
51
51
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The Blind to Read and “See” by Sound Alphabet
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TEACHING the blind to read by means of different shades of sound is a new and remarkable method invented by Professor Rosing, an oculist of Leningrad, Russia. Every letter of the alphabet will be expressed by a different sound. So far, sounds have been contrived for 18 letters of the alphabet.
PopularScience_19260201_0108_002_0080.xml
article
51
51
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Every Time You Save a Coin You Get Some Candy
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SOME funspoiling person is going to step forward and say: “It’s just spoiling the Children. They should save because they want to — not for a reward.” But stop to consider the matter. If you were a small boy or girl, how would you like to have a bank like a candy slot machine?
PopularScience_19260201_0108_002_0081.xml
article
52
52
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[no value]
Men Who Excel at Odd Handicrafts
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PopularScience_19260201_0108_002_0082.xml
article
53
53
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They Do the Unusual—Some Strange Occupations
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PopularScience_19260201_0108_002_0083.xml
article
54
54
[no value]
[no value]
A Motor-Coach Workbench to Demonstrate New Tools
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AN EASTERN hardware company is sending a meeting room on wheels from town to town, using it as a demonstrating workshop to teach salesmen the use of new tools. The exterior of the coach resembles an observation car, having a brass rail at the rear, a short awning canopy, and an illuminated drum light.
PopularScience_19260201_0108_002_0084.xml
article
54
54
[no value]
[no value]
Fireproof Gas Tank for Safe Transportation
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AN ALL-STEEL fireproof gasoline tank with a capacity of 1500 gallons, designed for safe transportation of gasoline on motor trucks through city streets, recently was tested with satisfactory results by New York City fire officials.
PopularScience_19260201_0108_002_0085.xml
article
54
54
[no value]
[no value]
Portable Scraper Outfit that Reduces Cost and Labor
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REPLACING four men and teams, a new portable scraper outfit, it is claimed, will excavate and carry loose materials over short distances in quantities up to 400 yards a day. The outfit is designed for contractors, county and township road commissioners who use local pits of gravel in road construction.
PopularScience_19260201_0108_002_0086.xml
article
54
54
[no value]
[no value]
Circular Saw Cuts Logs like Ham
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A CARPENTER of Paris recently has invented a high geared circular saw that cuts up logs into small pieces almost as quickly as the butcher slices boiled ham. It is geared on the same principle as a carborundum wheel and can be used in any woodshed or small shop where a regular power saw would be too expensive.
PopularScience_19260201_0108_002_0087.xml
article
55
55
[no value]
[no value]
A Concrete Column to Protect Filling-Station Pipes
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THE proprietor of an oil station near Sacramento, Calif., has erected a concrete column in which he has embedded the compressed air pipes, water pipes, and drinking fountain. This attractive device prevents motor cars from striking and damaging these facilities.
PopularScience_19260201_0108_002_0088.xml
article
55
55
[no value]
[no value]
He Claims to Make Steel Direct from Crude Ore
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A NEW way of making steel and workable iron direct from the crude ore, was developed not long since by Henning Flodin of Stockholm, Sweden, who described his process to steel manufacturers and scientists recently at Birmingham, England.
PopularScience_19260201_0108_002_0089.xml
article
55
55
[no value]
[no value]
A Combination Truck for All Street Jobs
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THE street-cleaning department of Berlin, Germany, has a new truck that is equipped to meet all street-cleaning problems. In summer it is a street sweeper and a sprinkler. In the winter it is employed as a snowplow. In addition to these purposes, not the least of its advantages is the fact that there is enough pressure back of the water to use the truck as an extinguisher in case of fire.
PopularScience_19260201_0108_002_0090.xml
article
55
55
[no value]
[no value]
Century Plant Yields Alcohol and Fodder
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RECENTLY Elie Delafond, a French engineer living in Mexico, invented a machine that extracts the last ounce of use from the agave, better known to more northern climes as the century plant. Fibers of the agave leaves long have been used for various industrial purposes, but M. Delafond’s machine separates the fibers of the trunk of the plant, a much more difficult process.
PopularScience_19260201_0108_002_0091.xml
article
55
55
[no value]
[no value]
New Motor Truck Engine
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A NEW type of motor-truck engine recently has been developed by the U. S. Army. The engine is said to deliver an increase of 28 per cent in power with a decrease of 20 per cent in fuel consumption. This engine uses the new ethyl gasoline for fuel.
PopularScience_19260201_0108_002_0092.xml
article
55
55
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Paper-Mill Ships Are Fitted with Ice-Cutting Prows
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FROM the great paper mills of Newfoundland newsprint is carried to all parts of the world. As the island is icebound for the greater part of the year, ships must cut their way through the ice to get out into the open sea. One of the foremost paper companies recently has put into commission two ships fitted with a new type of prow that from the waterline down is edged with a kind of saw that cuts the ice as it goes.
PopularScience_19260201_0108_002_0093.xml
article
56
56
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Teaches Children to Handle Snakes
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BEING curator of a museum is a pretty big job in itself, but Mrs. Grace Olive Wiley, curator of the Minneapolis Museum, has added another job to her list. She teaches children the right way to handle snakes without being bitten, and thus to overcome a fear that is perhaps one of the most deeply rooted in the psychology of human beings.
PopularScience_19260201_0108_002_0094.xml
article
56
56,151
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How Much Do YOU Know about Science?
Here Are Correct Answers to Questions on Page 56
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HERE is a capital opportunity for you to test your knowledge of the world in which we live. How many of the 12 questions can you answer offhand? Many of the questions have to do with every-day phenomena. A well informed person always wants to know the reason for natural facts.
PopularScience_19260201_0108_002_0095.xml
article
56
56
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Amateur Actress Makes Up with an Air Brush
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PATSY CHAPMAN of St. Paul, Minn., has a new idea for applying face paints. She uses an air brush, the liquid colors being blown on her face. One day she observed a painter blowing paints on an automobile. He explained that the paint went on smoother and looked better than if he had used a brush.
PopularScience_19260201_0108_002_0096.xml
article
56
56
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A Boon for Mothers—A Baby Carriage Garage
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A GARAGE for baby carriages? Why hadn’t some one thought of this necessity before? A new tenement in New York City has the first baby carriage garage. It is made of galvanized iron, is fireproof, and has a separate compartment with door and lock for each carriage.
PopularScience_19260201_0108_002_0097.xml
article
56
56
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This Chinese Wife Smashes Many Ancient Precedents
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AT LEAST there is one Chinese who believes that woman should have a place outside the home as well as in. Mr. Kuan Tung, studying for a Bachelor of Science degree at the Massachusetts Institute of Technology, decided that he would like his wife to study there, too.
PopularScience_19260201_0108_002_0098.xml
article
56
56
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Young Woman Chemist Is First in New Biological Field
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IN THE human body there is an “electric motor,” called an “enzyme,” that can speed up bodily reactions necessary to life. There are enzymes, too, in plants and other animals. Scientists know what they can do, but not what they are. A young research chemist, Miss Grace McGuire, is at work in the Harriman Research Laboratory in New York City, trying to solve the mystery of these agents that can hurry life processes. Miss McGuire is the first to undertake this field of biological chemistry.
PopularScience_19260201_0108_002_0099.xml
article
57
57
[no value]
[no value]
Motorists Have Narrow Escape as Car Hangs by Wheels
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ONE day, recently, without warning, Mr. and Mrs. S. P. Guile of Minneapolis, Minn., found themselves the central figures of a hair-raising thriller. Crossing a bridge over the Hennepin Canal at Colona, 111., their car collided with a truck.
PopularScience_19260201_0108_002_0100.xml
article
57
57
[no value]
[no value]
Chinese Wheelbarrow Is Poor Man’s Taxi
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ACHINESE wheelbarrow differs from the type we are accustomed to in that the large wheel projects through the center of the body, which with its wire guard forms two “compartments” to the vehicle. It is used in China as a sort of poor man's taxi, not alone in the factory districts, but also in the country, where it is suited to the roads, which in many instances are nothing but well worn paths.
PopularScience_19260201_0108_002_0101.xml
article
57
57
[no value]
[no value]
Auto Imitates a Fearsome Bucking Broncho
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THOUGH it does not hail from the Western plains, this auto has all the bad tricks of the unbroken pony. It bucks, rears, plunges, but, unlike its wild prototype, only at the driver’s will. The trick car was built by Alfred Pelzel of Cincinnati, Ohio.
PopularScience_19260201_0108_002_0102.xml
article
57
57
[no value]
[no value]
Midget Runs 52 Miles on a Gallon of Gas
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A BABY automobile, no longer than a man is high, pulled into Washington, D. C., recently and sailed up to the Capitol, the end of a transcontinental tour from San Francisco. Its driver, Gus Petzel of Alameda, Calif., was also the designer of the sturdy little machine that scooted over mountains and deserts that bother cars five times its size.
PopularScience_19260201_0108_002_0103.xml
article
57
57
[no value]
[no value]
Subway Garages for Paris
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PLANS for a system of underground garages and subterranean streets as a means of relieving traffic congestion in Paris, France, were announced recently by M. Morain, the Prefect of Police. The underground thoroughfare, it is said, will be built simultaneously with a proposed new subway line.
PopularScience_19260201_0108_002_0104.xml
article
58
58,59
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[no value]
Household Tools and Home Comforts
If Studied Scientifically, Housework Problems Become Simple, Every-Day Routine
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PopularScience_19260201_0108_002_0105.xml
article
60
60,61
[no value]
[no value]
Powerful New Ray Penetrates Metal
Discoveries that Add to the World's Useful Knowledge
“Super X-Rays” Discovered
What Is a Microvibroscope?
A New Triumph for Radio
Element 75 Is Found
Will Jupiter Devour Us?
Nature Uses This Anesthetic
Three Violins in One
Cold Storage
We’d Freeze on Mars
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[no value]
AT THE recent convention of the National Academy of Sciences, held at Madison, Wis., Dr. Robert Andrews Millikan finished reading his paper and sat down. For a moment there was silence; then came a murmur that grew in volume until no one could hear his neighbor.
PopularScience_19260201_0108_002_0106.xml
article
62
62,63
[no value]
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Remarkable New Dials for Your Radio Set Help to Get Distant Stations
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ALFRED P. LANE
IT IS quite possible to tune a radio receiver without any dials at all. Your fingers could grip the projecting ends of the condenser shafts and turn them back and forth and if you had sufficient perseverance, you would be able to get the music.
PopularScience_19260201_0108_002_0107.xml
article
64
64
[no value]
[no value]
Unusual Radio Ideas
Novel Loudspeakers; Other New Devices
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PopularScience_19260201_0108_002_0108.xml
article
65
65,66,136
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Beware of the Battery Gyp!
Crafty Tricks of Crooked Dealers that Cost You Money and Trouble—The Confessions of a Radio Service Man
How an Ordinary Dry Cell Is Made
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[no value]
GEORGE LEE DOWD
I’VE for a been good in many the battery years. Without business bragnow ging, I think I can truthfully say that if all the batteries I've seen the insides of were piled in a heap, they'd reach higher than the Woolworth Building. Right now I’m working for a man w ho is a square dealer, but in the past I’ve worked for all kinds of birds, ranging from outright crooks to the fellows who had fits of honesty now and then.
PopularScience_19260201_0108_002_0109.xml
article
67
67
[no value]
[no value]
Ingenious Helps for the Car Owner
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PopularScience_19260201_0108_002_0110.xml
article
68
68,147,148
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Does Your Car Fit Your Purse?
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MARTIN BUNN
“THIS job is going to nick your bank roll good and plenty,” said Gus Wilson, half owner and chief mechanic of the Model Garage, as he looked up from young Baldwin’s car. “Your motor is full of carbon, the valves need grinding, the bearings ought to be taken up, and the brakes relined, and I think, from the way she pumps oil, that you need a new set of piston rings.”
PopularScience_19260201_0108_002_0111.xml
advertisement
69
69
[no value]
[no value]
S. C. Johnson &. Son
[no value]
S. C. Johnson &. Son
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PopularScience_19260201_0108_002_0112.xml
article
70
70
[no value]
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Helpful Hints for Motorists
Simple Way to Rebush Kingpin, and Seven Other Useful Aids
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IF THE kingpin bolt is allowed to get loose and the automobile is run for any great length of time with the bolt in that condition, the result is usually a worn lower bearing that makes refitting practically impossible. The only remedy is to drill out and rebush the hole.
PopularScience_19260201_0108_002_0113.xml
advertisement
71
71
[no value]
[no value]
HENRY DISSTON & SONS, INC.
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HENRY DISSTON & SONS, INC.
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PopularScience_19260201_0108_002_0114.xml
advertisement
72
72
[no value]
[no value]
THE CUTLER-HAMMER MFG. CO.
[no value]
THE CUTLER-HAMMER MFG. CO.
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PopularScience_19260201_0108_002_0115.xml
article
73
73,96,97,98,99
Home Workship
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A Ship Model of Your Own
How to Build a Picturesque Pirate Galley
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[no value]
CAPT. E. ARMITAGE MCCANN
CARAVELS and galleons here, there, and everywhere! Ship models‘are enjoying unprecedented popularity. Every one seems to wish a decorative ship model for his home, and competitive buying has forced the prices sky high. Most of the models on the market are shipped here in hundred lots from Munich.
PopularScience_19260201_0108_002_0116.xml
article
74
74,100,101
Home Workship
[no value]
My Methods of Enameling Furniture
Preparing the Wood, Concealing Defects, Applying Undercoats and Enamel, and Giving Special Treatment to Old Pieces
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[no value]
LAWRENCE B. ROBBINS
Now that painted furniture is enjoying so great a vogue, practically every home worker has to undertake from time to time either the enameling of new pieces or the refinishing of old. The woodworking tools have to be banished temporarily, the bench top dusted off, the floor dampened and swept clean, and the little shop, whether it is in the attic, cellar, or garage, turned over entirely to the work of painting.
PopularScience_19260201_0108_002_0117.xml
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75
75
[no value]
[no value]
BAKELITE CORPORATION
[no value]
BAKELITE CORPORATION
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0118.xml
article
76
76,154,156,158
Home Workship
[no value]
How to Insulate Your House
Gorman Tells His Neighbor the Secret of Saving Coal and Being Comfortable in Zero Weather—Blanketing Materials and IVays of Applying Them
[no value]
[no value]
JAMES S. GODFREY
BRACING him self against the keen January wind, John Gorman paused a moment at the corner to wait for Marks, who was plodding through the snow from his home across the street. Both men were stationbound for the 7:53. Marks made a grimace as he came alongside, a trifle winded by his haste through the soft, knee-deep drifts, and the men swung around the corner together.
PopularScience_19260201_0108_002_0119.xml
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77
77
[no value]
[no value]
Sears, Roebuck and Co.
[no value]
Sears, Roebuck and Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0120.xml
article
78
78
Better Shop Methods
[no value]
A Tale of Two Cranks
[no value]
[no value]
[no value]
JAMES ELLIS
JUST five minutes before the afterlunch whistle blew, and the entire personnel of Old Bill’s shop was out sunning itself and recounting past experiences. Steve Burton, the blacksmith, had the floor. “It was the slickest thing I ever saw,” he stated with emphasis.
PopularScience_19260201_0108_002_0121.xml
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79
79
[no value]
[no value]
THE L. S. STARRETT CO.
[no value]
THE L. S. STARRETT CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0122.xml
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80
80
[no value]
[no value]
The Peck, Stow & Wilcox Co.
[no value]
The Peck, Stow & Wilcox Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0123.xml
article
80
80
The Home Workshop
[no value]
Cutting Mortises and Tenons
How to Make a Universally Useful Furniture Joint
[no value]
[no value]
EMANUEL E. ERICSON, Noted Manual-Training Authority
[no value]
PopularScience_19260201_0108_002_0124.xml
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81
81
[no value]
[no value]
THE JUNG ARCH BRACE CO.,
[no value]
THE JUNG ARCH BRACE CO.,
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0125.xml
advertisement
82
82
[no value]
[no value]
North Bros. Mfg. Co.
[no value]
North Bros. Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0126.xml
article
82
82,83,91
The Home Workshop
[no value]
Ball-Bearing Bandsaw Built Mainly from Old Auto Parts
[no value]
[no value]
[no value]
RAY F. KUNS
IN DESIGNING a streamline body for an auto that was to be used for touring and camping, the problem of sawing out the curved timbers for the frame presented itself. While it was not impossible to work out the curved and irregularly snaped parts with ordinary hand tools, 2-in. oak is apt to take the edge off any home worker’s enthusiasm.
PopularScience_19260201_0108_002_0127.xml
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83
83
[no value]
[no value]
Advertisement
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[no value]
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0128.xml
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84
84
[no value]
[no value]
THE DAVID MAYDOLE HAMMER CO.
[no value]
THE DAVID MAYDOLE HAMMER CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0129.xml
article
84
84,85,94
[no value]
[no value]
Uniquely Simple Radio Cabinet Requires Little Skill to Build
[no value]
[no value]
[no value]
NORMAN C. TOCK
RADIO fans who are looking for ideas cabinets will find several features to recommend the one illustrated—simplicity of construction, economy in wood, and general serviceability. The basic design can be made as ornamental as one wishes by giving the legs a graceful contour, molding the edges, and applying overlays, moldings, or carved or gesso-work ornamentation.
PopularScience_19260201_0108_002_0130.xml
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85
85
[no value]
[no value]
The Yale &. Towne Manufacturing Co.
[no value]
The Yale &. Towne Manufacturing Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0131.xml
advertisement
86
86
[no value]
[no value]
E. C. ATKINS & CO.
[no value]
E. C. ATKINS & CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0132.xml
article
86
86,87,88
[no value]
[no value]
How to Apply Wooden Trim on Door and Window Frames
[no value]
[no value]
[no value]
EDWIN M. LOVE,
AFTER the boards and moldings for the finishing trim have been cut to rough lengths and cleaned up, the work of installing it will prove to be the most interesting and enjoyable part of the fitting up of an attic room. The window stool is notched around the jambs to such depth that the rabbeted shoulder fits snugly against the sill.
PopularScience_19260201_0108_002_0133.xml
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87
87
[no value]
[no value]
The Sherwin-Williams Co.
[no value]
The Sherwin-Williams Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0134.xml
advertisement
88
88
[no value]
[no value]
GOODELL-PRATT COMPANY
[no value]
GOODELL-PRATT COMPANY
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0135.xml
article
89
89,90
The Home Workshop
[no value]
How to Construct a Portable Stand for Magazines
[no value]
[no value]
[no value]
[no value]
BUSY housewives regard with high disfavor the practice of leaving current magazines scattered around the living-room and the porch. They are certain, therefore, to welcome the ornamental little wooden “basket” illustrated, which, when placed beside a chair, forms a receptacle for the magazines that the reader may wish to have at hand.
PopularScience_19260201_0108_002_0136.xml
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89
89
[no value]
[no value]
Brown & Sharpe Mfg. Co.
[no value]
Brown & Sharpe Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0137.xml
advertisement
90
90
[no value]
[no value]
Simonds Saw and Steel Co.
[no value]
Simonds Saw and Steel Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0138.xml
advertisement
90
90
[no value]
[no value]
MILLERS FALLS COMPANY
[no value]
MILLERS FALLS COMPANY
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0139.xml
article
90
90
The Home Workshop
[no value]
Old Boxes Converted into a Coasting Passenger Train
[no value]
[no value]
[no value]
[no value]
ALL ready for a trip in the Sunshine Special! It is a passenger train of four or five dry-goods boxes, mounted on runners and fastened together with bolts leaving a play of 3 or 4 in. between coaches.
PopularScience_19260201_0108_002_0140.xml
article
91
91
The Home Workshop
[no value]
How to Color New Cane Seat to Harmonize with Woodwork
[no value]
[no value]
[no value]
[no value]
NOW that the use of machine-woven cane has become so common, home workers frequently undertake the replacement of cane chair seats, backs, and decorative cane furniture panels. There is no great difficulty in removing the old splines, wedging the new cane in place while slightly damp, and gluing in new splines.
PopularScience_19260201_0108_002_0141.xml
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91
91
[no value]
[no value]
The Pompeian Co.
[no value]
The Pompeian Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0142.xml
article
92
92
The Home Workshop
[no value]
Novel Ice Bell Box Enlivens Skaters with Its “Music”
[no value]
[no value]
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TINKLING sleigh-bell music accompanies the skater who has one of these amusing bell boxes to push before him. To make a musical cylinder of this kind, cut a strip of sheet iron or tin 18 in. wide and fasten it over two wooden hoops, which should be about 2 ft. in diameter.
PopularScience_19260201_0108_002_0143.xml
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92
92
[no value]
[no value]
TRIMONT MFG. CO.
[no value]
TRIMONT MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0144.xml
advertisement
92
92
[no value]
[no value]
PRENTISS VISE CO.
[no value]
PRENTISS VISE CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0145.xml
article
93
93
The Home Workshop
[no value]
Home Workshop Chemistry
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[no value]
[no value]
[no value]
IN FURNITURE factories and cabinetmaking shops, blemishes and holes in finished woodwork are concealed with the aid of what are called shellac sticks. These sticks resemble ordinary stationer’s sealing wax, but actually have a greater proportion of shellac.
PopularScience_19260201_0108_002_0146.xml
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93
93
[no value]
[no value]
COLGATE &. CO.
[no value]
COLGATE &. CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0147.xml
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94
94
[no value]
[no value]
Mathias KLEIN & Sons
[no value]
Mathias KLEIN & Sons
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0148.xml
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94
94
[no value]
[no value]
Advertisement
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[no value]
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0149.xml
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94
94
[no value]
[no value]
LOFTIS BROS. & CO.
[no value]
LOFTIS BROS. & CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0150.xml
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94
94
[no value]
[no value]
NORTHWESTERN ELECTRIC CO.
[no value]
NORTHWESTERN ELECTRIC CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0151.xml
article
94
94
The Home Workshop
[no value]
Beam Compass Improvised from Small Bow Instruments
[no value]
[no value]
[no value]
[no value]
HAVING immediate need for a beam compass for drawing some very large arcs, I contrived to make a satisfactory substitute by using the bow instruments from my drafting set and a wooden bar, as shown below. The beam is a piece ¼ by ½in. in cross section.
PopularScience_19260201_0108_002_0152.xml
article
95
95
The Home Workshop
[no value]
Blueprint Shows You How to Build a Pirate Ship Model
[no value]
[no value]
[no value]
[no value]
WHEN you read Captain McCann’s article on how to build a miniature Barbary felucca, which begins on page 73 of this issue, the chances are that you will want to make one of these gorgeously colored and extraordinarily decorative little pirate ship models.
PopularScience_19260201_0108_002_0153.xml
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95
95
[no value]
[no value]
ALLEN-BRADLEY COMPANY
[no value]
ALLEN-BRADLEY COMPANY
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0154.xml
advertisement
96
96
[no value]
[no value]
ST.LOUIS
[no value]
ST.LOUIS
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0155.xml
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96
96
[no value]
[no value]
Larus & Bro. Co.
[no value]
Larus & Bro. Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0156.xml
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97
97
[no value]
[no value]
APEX ELECTRIC MFG. CO.
[no value]
APEX ELECTRIC MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0157.xml
advertisement
98
98
[no value]
[no value]
The Veeder Mfg. Co.
[no value]
The Veeder Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0158.xml
advertisement
98
98
[no value]
[no value]
FANSTEEL PRODUCTS CO., Inc.
[no value]
FANSTEEL PRODUCTS CO., Inc.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0159.xml
advertisement
99
99
[no value]
[no value]
Advertisement
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[no value]
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PopularScience_19260201_0108_002_0160.xml
advertisement
99
99
[no value]
[no value]
FIRESIDE INDUSTRIES
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FIRESIDE INDUSTRIES
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[no value]
[no value]
PopularScience_19260201_0108_002_0161.xml
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100
100
[no value]
[no value]
Advertisements
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[no value]
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0162.xml
article
101
101
The Home Workshop
[no value]
The “Straddle Bug” Provides New Coasting Thrills
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[no value]
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[no value]
WOODEN runners will transform an old sawhorse into a novel “straddle bug” for coasting. Saw the runners from 1 by 8 in. boards, 2 ft. longer than the sawhorse. Bevel the under edges so that each-runner will lie flat and bolt the pieces to the outside of the sawhorse legs.
PopularScience_19260201_0108_002_0163.xml
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101
101
[no value]
[no value]
DAVEN RADIO CORPORATION
[no value]
DAVEN RADIO CORPORATION
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0164.xml
advertisement
101
101
[no value]
[no value]
Advertisement
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[no value]
[no value]
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PopularScience_19260201_0108_002_0165.xml
advertisement
101
101
[no value]
[no value]
W.B. & J.E.BOICE
[no value]
W.B. & J.E.BOICE
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0166.xml
advertisement
102
102
[no value]
[no value]
THE KODEL RADIO CORPORATION
[no value]
THE KODEL RADIO CORPORATION
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0167.xml
advertisement
102
102
[no value]
[no value]
BABY CALCULATOR SALES CO.
[no value]
BABY CALCULATOR SALES CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0168.xml
article
102
102,103,104
The Home Workshop
[no value]
Convenient Stand for Holding a Baby’s Bathtub
Shopwork Instructor, Central High School, Peoria, Ill.
[no value]
[no value]
WILLIAM T. WELD
TO BE able to sit down while giving baby his daily bath and to know that he will not tip the tub over are two reasons why this bathtub appeals to every mother or nurse. The compartment back of the partition is a convenient storage space for extra towels and washcloths, while the shelf below the tub is a handy place to put things during the bath.
PopularScience_19260201_0108_002_0169.xml
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103
103
[no value]
[no value]
THORDARSON ELECTRIC MANUFACTURING CO.
[no value]
THORDARSON ELECTRIC MANUFACTURING CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0170.xml
advertisement
103
103
[no value]
[no value]
RAPID MANUFACTURING CO.
[no value]
RAPID MANUFACTURING CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0171.xml
advertisement
103
103
[no value]
[no value]
AMERICAN RADIO MFG. CO.
[no value]
AMERICAN RADIO MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0172.xml
article
104
104
The Home Workshop
[no value]
How to Block the Wheels of Portable Farm Machines
[no value]
[no value]
[no value]
[no value]
FARMERS and other workers who deal with portable gas engines, haybalers, silo fillers, wood saws, and other machines mounted on wheels, will find it easy to block the machines so as to keep the belts tight with wheel trigs of the type illustrated.
PopularScience_19260201_0108_002_0173.xml
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104
104
[no value]
[no value]
The Rudolph WurlitzerCo.
[no value]
The Rudolph WurlitzerCo.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0174.xml
advertisement
104
104
[no value]
[no value]
AMSCO PRODUCTS, Inc.
[no value]
AMSCO PRODUCTS, Inc.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0175.xml
advertisement
104
104
[no value]
[no value]
LIGHTNING BATTERY CO.
[no value]
LIGHTNING BATTERY CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0176.xml
advertisement
104
104
[no value]
[no value]
IRWIN AIRCRAFT CO.
[no value]
IRWIN AIRCRAFT CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0177.xml
article
105
105,106,107
[no value]
[no value]
The Shipshape Home
Simply Made Sash Lock
Corrugated Fasteners
Spray for Furnace Ashes
Repairing a Range Grate
How to Polish Window Glass
[no value]
[no value]
[no value]
ONE often wishes for a window lock that will be effective when either the lower or upper sash or both are partly open. Such a lock can be made from sheet iron or steel, as shown below. Use any gage of metal from 20 to 23. Cut it out with a hacksaw and file it to the correct shape while flat.
PopularScience_19260201_0108_002_0178.xml
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105
105
[no value]
[no value]
Advertisement: GENERALELECTRIC
[no value]
[no value]
GENERALELECTRIC
[no value]
[no value]
PopularScience_19260201_0108_002_0179.xml
advertisement
105
105
[no value]
[no value]
MAHER & GROSH CO.
[no value]
MAHER & GROSH CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0180.xml
advertisement
106
106
[no value]
[no value]
EAREE E. LIEDERMAN
[no value]
EAREE E. LIEDERMAN
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0181.xml
advertisement
106
106
[no value]
[no value]
Advertisement
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[no value]
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[no value]
PopularScience_19260201_0108_002_0182.xml
advertisement
106
106
[no value]
[no value]
c.F.S. Co.
[no value]
c.F.S. Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0183.xml
advertisement
106
106
[no value]
[no value]
HOBART BROS. CO.
[no value]
HOBART BROS. CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0184.xml
advertisement
107
107
[no value]
[no value]
LIGGETT A MYERS TOBACCO CO.
[no value]
LIGGETT A MYERS TOBACCO CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0185.xml
advertisement
107
107
[no value]
[no value]
WORLD BATTERY COMPANY
[no value]
WORLD BATTERY COMPANY
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0186.xml
advertisement
107
107
[no value]
[no value]
Style-Arch Shoe Company
[no value]
Style-Arch Shoe Company
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0187.xml
advertisement
108
108
[no value]
[no value]
BROWN MACHINERY CO
[no value]
BROWN MACHINERY CO
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0188.xml
advertisement
108
108
[no value]
[no value]
The Parks Ball Bearing Machine Co.
[no value]
The Parks Ball Bearing Machine Co.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0189.xml
advertisement
108
108
[no value]
[no value]
AMERICAN TOP & BODY CO.
[no value]
AMERICAN TOP & BODY CO.
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0190.xml
advertisement
108
108
[no value]
[no value]
WITTE ENGINE WORKS
[no value]
WITTE ENGINE WORKS
[no value]
[no value]
[no value]
PopularScience_19260201_0108_002_0191.xml
article
108
108
Better Shop Methods
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Old Bill Says—
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[no value]
[no value]
[no value]
WHEN cutting threads, if the work is centered, be sure that the dog is tight before taking the first cut. Help to keep your shop clean and shipshape. Plenty of speed is a good thing, but it must he used with caution. Never mind what the other fellow i s doing, but concentrate on your own job.
PopularScience_19260201_0108_002_0192.xml
article
108
108
Better Shop Methods
[no value]
Adjustable Lamp Bracket
[no value]
[no value]
[no value]
[no value]
THIS lamp bracket can be adjusted instantly with one hand. The standard is merely a round rod set in a heavy base. A free fitting collar slides on the rod and carries the extension bracket, which swings on a pin as shown at A. The inner end of the bracket is filed eccentrically, as at B, to serve as an automatic clamp.
PopularScience_19260201_0108_002_0193.xml
article
109
109
Better Shop Methods
[no value]
Work Holder for Lathe, Drill Press, and Bench Vise
[no value]
[no value]
[no value]
[no value]
WHEN made with a taper shank, the work holder illustrated may be used to hold cylindrical pieces for drilling and tapping in the lathe,’in a bench vise, or on a drill press, provided the latter has a taper hole in the table. Both the holder and the clamps are made of machine steel, and can be of whatever size seems to fit the shop’s needs.
PopularScience_19260201_0108_002_0194.xml
article
109
109
Better Shop Methods
[no value]
Brake Improves a Hand Truck
[no value]
[no value]
[no value]
[no value]
HANDLING heavy castings, boxes, pieces of machinery and other materials around a machine shop can be done with greater safety and speed if the twowheel hand truck commonly used is fitted with a brake. When liftingaheavy load, one foot is placed on the brakerod and the track is held from running back while the load is “broken over.”
PopularScience_19260201_0108_002_0195.xml
article
109
109
Better Shop Methods
[no value]
Straightening Warped Triangles
[no value]
[no value]
[no value]
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TO STRAIGHTEN a warped celluloid drafting triangle, place it between two pieces of 1-in.-thick hard wood that previously have been soaked in a pail of hot water for 10 minutes. Apply pressure by means of a copying press, a pile of weights, or any convenient method. Do not remove the triangle until it is cold.
PopularScience_19260201_0108_002_0196.xml
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PopularScience_19260201_0108_002_0197.xml
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PopularScience_19260201_0108_002_0198.xml
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PopularScience_19260201_0108_002_0199.xml
article
110
110
Better Shop Methods
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Torch Used to Remove Stone Roll from Steel Shaft
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AGRANITE roll 19 ft. 2 in. long, used in a paper-making machine, was sent into the shop to have the stone replaced. Removing the old granite proved to be a difficult task. It looked as if the job would take a week or more with air drills and hammers.
PopularScience_19260201_0108_002_0200.xml
article
110
110
Better Shop Methods
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Improved Key-Seat Rule
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KEY seats can be marked on both large and small shafts with the improved rule illustrated above. The auxiliary edge allows the rule to be applied to shafts less than ½in. in diameter. The rule is made of ground templet stock 1/16 by 1½ inand may be any desired length. Two pieces of equal width are joined together with a length of 5/16-inkey stock, six machine screws, and two dowel pins. The edges must be square and parallel.
PopularScience_19260201_0108_002_0201.xml
article
110
110
Better Shop Methods
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Inspecting Grinding Wheels
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IF YOU use grinding wheels of any kind, be sure they are mounted properly. Carelessness may result in serious injury. A grinding wheel never should be placed on a machine without careful inspection, because it may have a crack or hidden flaw.
PopularScience_19260201_0108_002_0202.xml
article
111
111
Better Shop Methods
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Simple Clamping Fixture Aids in Soldering Small Parts
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ONE difficulty in soldering small parts is that the iron is apt to push the work out of position. A small shop with much work of this kind to do uses the simple clamping fixture illustrated. The body is a piece of 2-in.round cold rolled steel about 6 in. long with a ¾-in. hole drilled through it at right angles near the top.
PopularScience_19260201_0108_002_0203.xml
article
111
111
Better Shop Methods
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Folding Horses for Platforms
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LARGE wooden horses for supporting platforms such as those used by millwrights and builders are cumbersome to handle and require considerable floor space for storage when not in use. The construction illustrated is designed to economize space.
PopularScience_19260201_0108_002_0204.xml
article
111
111
Better Shop Methods
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Ways to Reduce the Moisture Film on Shop Goggles
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MECHANICS who are troubled by the formation of a film of moisture on goggles will find that an application of glycerine soap on the glass will be helpful. Make a strong solution of soap and water and wipe the inside of the glasses with it. Some druggists and many opticians sell a commercial preparation that is even more effective.
PopularScience_19260201_0108_002_0205.xml
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111
111
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PopularScience_19260201_0108_002_0206.xml
article
112
112,122
Better Shop Methods
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How to Fit Piston Rings by the Peening Method
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HARRY B. MAXWELL
MANY manufacturers of motors, after cutting piston rings so that they will be a trifle over size when closed, insert them in a cylinder long enough to hold several rings, then clamp them between flanges on an arbor, slide off the cylinder, and turn the rings to size.
PopularScience_19260201_0108_002_0207.xml
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112
112
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PopularScience_19260201_0108_002_0208.xml
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112
112
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THE KODEL RADIO CORP.
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THE KODEL RADIO CORP.
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PopularScience_19260201_0108_002_0209.xml
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112
112
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BARAWIK CO.
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BARAWIK CO.
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PopularScience_19260201_0108_002_0210.xml
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112
112
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Blackstone Institute, Inc.
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Blackstone Institute, Inc.
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PopularScience_19260201_0108_002_0211.xml
article
113
113
Better Shop Methods
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Laying Off Accurate Angles without a Protractor
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DRAFTSMEN, mechanical or civil engineers, and mechanics often find it necessary to construct an angle of a given number of degrees, or to measure an angle of unknown span, without the aid of a protractor or other instrument for measuring angles.
PopularScience_19260201_0108_002_0212.xml
article
113
113
Better Shop Methods
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Mounting a Faceplate
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WHEN mounting a chuck or faceplate on the nose of a lathe spindle, the threaded hole should be inspected for chips or dirt. A thorough cleaning and a few drops of oil on the spindle nose often will save a lot of time when the chuck or faceplate is to be removed.
PopularScience_19260201_0108_002_0213.xml
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113
113
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PopularScience_19260201_0108_002_0214.xml
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113
113
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PopularScience_19260201_0108_002_0215.xml
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114
114
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PopularScience_19260201_0108_002_0216.xml
article
114
114
Better Shop Methods
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Utility Shop Stand Has Simple Adjustment for Height
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IN EVERY shop there are times when an adjustable stand or table will save time and labor. Often when drilling an awkward piece of work, for instance, it is necessary to rest one end on a stand or have a helper hold it. A useful stand for this purpose may be made as illustrated, chiefly from pipes and fittings.
PopularScience_19260201_0108_002_0217.xml
article
114
114
Better Shop Methods
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Grinding Fixture for Gages
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SHEET-STEEL gages and templets that are to be ground on the edges may be set up quickly with the aid of the simple fixture illustrated. The slot should be about ¼ in. wide to take the common sizes of gage stock. Usually the templet would be clamped on an angle plate, but this device makes clamps and angle plates unnecessary. The work may be removed quickly for measuring and reset without having to take the trouble of truing it up with an indicator.
PopularScience_19260201_0108_002_0218.xml
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114
114
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PopularScience_19260201_0108_002_0219.xml
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114
114
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INTERNATIONAL MILL & TIMBER CO.
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INTERNATIONAL MILL & TIMBER CO.
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PopularScience_19260201_0108_002_0220.xml
article
115
115
Better Shop Methods
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Wooden Forming Dies Serve for Experimental Work
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FORMING dies of hard wood often are useful on experimental work, or where only a few pieces are to be made. The illustration gives the general idea of their construction. In this case several aluminum gearease covers were wanted, so top and bottom dies were made of maple and the forming was done in an arbor press.
PopularScience_19260201_0108_002_0221.xml
article
115
115
Better Shop Methods
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How to Make Neat Pipe Bends without Special Tools
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WELL made curves or bends in pipe or tubing always are desirable in repair or experimental work, but without special tools they are somewhat difficult to form. In our shop we often make use of the idea shown in the accompanying photograph, which illustrates the steps in preparing a 90-degree angle.
PopularScience_19260201_0108_002_0222.xml
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115
115
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Allied Merke Institute, Inc.
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Allied Merke Institute, Inc.
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PopularScience_19260201_0108_002_0223.xml
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115
115
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PopularScience_19260201_0108_002_0224.xml
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116
116
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PopularScience_19260201_0108_002_0225.xml
article
116
116
Better Shop Methods
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Telltale Indicator Designed for Truing Deep Holes
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IT IS easy to see if the front end of a hole in a bushing that is being set up in a lathe or grinder is true, but more difficult to tell whether the back end is perfectly true, especially if the hole is deep. The indicator shown in use truing up the bushing A is designed especially for this class of work.
PopularScience_19260201_0108_002_0226.xml
article
116
116
Better Shop Methods
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Hints on Tempering
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SALT water will temper tools brittle. Soda water will temper them tough. To prevent steel from temper cheeking, use oil—fish or vegetable oil preferred. To use mild steel for tools, bake in bone meal from one to three hours. Then boil in cyanide of potassium and quench.
PopularScience_19260201_0108_002_0227.xml
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117
117
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THOMAS NELSON & SONS
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THOMAS NELSON & SONS
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PopularScience_19260201_0108_002_0228.xml
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118
118,119,120,121,122,123,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154
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Money Making Opportunities for "Popular Science" Readers
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PopularScience_19260201_0108_002_0229.xml
article
122
122
Better Shop Methods
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Lathe Bed for Balancing
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IF ONE of the shop's lathes has the bed leveled very carefully and the shears are kept free from dents, there always is available a good place to balance crankshafts, flywheel assemblies, grinding wheels, or other parts that must revolve without vibration.
PopularScience_19260201_0108_002_0230.xml
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124
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Opportunities for Readers in Quick Action Advertising
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PopularScience_19260201_0108_002_0231.xml
article
136
136
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Saves Gas for Airships
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TWO professors of chemistry in the University of Berlin, claim to have solved the problem of flying and landing airships without releasing the gas. Where hydrogen gas is used, this blowingoff process is dangerous; and where ships use helium, it is expensive.
PopularScience_19260201_0108_002_0232.xml
article
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144
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British Wireless Planes
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THE first stage of success with wireless controlled airplanes is said to have been reached recently in England. The authorities carefully camouflaged these tests, but an accident revealed the secret. The tests were made near an airplane station on the south coast, but the inhabitants of the town never suspected that the planes they saw flying over the sea carried no men.
PopularScience_19260201_0108_002_0233.xml
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How Large Is an Electron?
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WHEN we consider that nobody ever has seen an atom because atoms are far too small to be seen through even the most powerful microscope and that, notwithstanding their extreme smallness, atoms are complex structures consisting of a nucleus and a number of electrons varying in number according to the element of which the atom forms a part, we naturally reach the conclusion that electrons must be infinitesimally small.
PopularScience_19260201_0108_002_0234.xml
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Hookworm Spreads to Palestine
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MODERN methods of agriculture are blamed for the introduction of hookworm into the Holy Land. Doctor A. Felix of the Rothschild Hospital in Palestine, who found that about one out of every 12 workmen in the orange groves is affected by the disease, attributes it to the increased use of irrigation in the land.
PopularScience_19260201_0108_002_0235.xml
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152
152,153
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Know Your Car
How Hot Is a Man’s Hat?
Redwood Yields Small Fortune
A Tribe of Asiatic Indians Immune to Snake Bites
Huge Meteorite from Greenland
Remove Your Glasses in China
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IN SPITE of the size, weight, and power of an automobile, a small amount of dirt may put it completely out of commission. If dirt collects between the breaker points, for instance, it will prevent them from making contact and the engine cannot run until the dirt is removed.
PopularScience_19260201_0108_002_0236.xml
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155
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PopularScience_19260201_0108_002_0237.xml
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156
156
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PopularScience_19260201_0108_002_0238.xml
article
157
157
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Stammering Bill Woods
How he overcame his handicap and became the best talker in his town and the star salesman of his firm
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H. L. HODGSON
THE "Limited” was held up by a freight wreck ahead. I was marooned in a small but prosperous manufacturing town with but little prospect of getting out before midnight. Tired, after a hard day’s work, I had just about decided to take in a movie, when the town band sailed by at the head of a torchlight procession.
PopularScience_19260201_0108_002_0239.xml
article
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158
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Saving the Leaves of a Wall Calendar for Reference
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IF YOU use the ordinary type of wall calendar in your home, office, or shop and have occasion to look up dates in months gone by, you will find the method illustrated above a convenient one for preserving the sheets. Instead of tearing each sheet off at the end of the month, fold it in two and turn it back against the cardboard backing.
PopularScience_19260201_0108_002_0240.xml
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PopularScience_19260201_0108_002_0241.xml
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158
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PopularScience_19260201_0108_002_0242.xml
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159
159
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RANDOLPH RADIO CORPORATION
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RANDOLPH RADIO CORPORATION
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PopularScience_19260201_0108_002_0243.xml
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160
160
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MIDWEST RADIO CORPORATION
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MIDWEST RADIO CORPORATION
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PopularScience_19260201_0108_002_0244.xml
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PopularScience_19260201_0108_002_0245.xml
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162
162,163,164
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RHODES MFG. CO., INC.
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RHODES MFG. CO., INC.
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PopularScience_19260201_0108_002_0246.xml