Issue: 19411201

Monday, December 1, 1941
DEC. 19411201
6
True
139
Monday, December 29, 2014

Articles
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POPULAR SCIENCE
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PopularScience_19411201_0139_006_0001.xml
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NATIONAL CARBON COMPANY, INC.: "PRESTONE" ANTI-FREEZE
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NATIONAL CARBON COMPANY, INC.
"PRESTONE" ANTI-FREEZE
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PopularScience_19411201_0139_006_0002.xml
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1
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P. F. COLLIER & SON CORP.
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P. F. COLLIER & SON CORP.
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PopularScience_19411201_0139_006_0003.xml
masthead
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2
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POPULAR SCIENCE
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PopularScience_19411201_0139_006_0004.xml
tableOfContents
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2,4,6,8
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CONTENTS for DECEMBER, 1941
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PopularScience_19411201_0139_006_0005.xml
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3
3
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Advertisements
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SAFETY SILVERTOWN
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DELUXE SILVERTOWN
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PopularScience_19411201_0139_006_0006.xml
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4
4
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KAYWOODIE COMPANY
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KAYWOODIE COMPANY
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PopularScience_19411201_0139_006_0007.xml
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4
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Advertisement
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PopularScience_19411201_0139_006_0008.xml
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4
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SPARK PLUG CO.
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SPARK PLUG CO.
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PopularScience_19411201_0139_006_0009.xml
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5
5
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Advertisement: CHAMPION SPARK PLUGS
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CHAMPION SPARK PLUGS
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PopularScience_19411201_0139_006_0010.xml
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6
6
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UNDERWOOD ELLIOTT FISHER COMPANY
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UNDERWOOD ELLIOTT FISHER COMPANY
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PopularScience_19411201_0139_006_0011.xml
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7
7
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19411201_0139_006_0012.xml
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8
8
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Advertisement
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PopularScience_19411201_0139_006_0013.xml
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9
9
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LASALLE EXTENSION UNIVERSITY
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LASALLE EXTENSION UNIVERSITY
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PopularScience_19411201_0139_006_0014.xml
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10
10
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The ROSICRUCIANS
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The ROSICRUCIANS
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PopularScience_19411201_0139_006_0015.xml
article
10
10
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Coming Next Month—
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DDRIVING AT NIGHT is three times as dangerous as driving by day. Statistics show that for every mile you travel after darkness has fallen, your risk of a fatal accident is threefold. In an article based on facts and figures, Myron M. Stearns analyzes the special hazards of night driving and gives common-sense advice for avoiding them.
PopularScience_19411201_0139_006_0016.xml
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11
11
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National Radio Institute
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National Radio Institute
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PopularScience_19411201_0139_006_0017.xml
article
12
12
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From The news Editor's Desk
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KEEPING THE BRAIN COOL while a raging fever surges through the rest of the body has long been a major medical problem. The value of a high fever in the treatment of cancer, for example, is well known, but human beings can rarely with-stand body temperatures of more than 108.5 degrees Fahrenheit.
PopularScience_19411201_0139_006_0018.xml
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13
13
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COYNE ELECTRICAL SCHOOL
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COYNE ELECTRICAL SCHOOL
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PopularScience_19411201_0139_006_0019.xml
article
14
14,16,18
Readers Say:
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Readers Say:
He Should Sue Gus Mager for One Scent Damages
Steam Power for Small Boats Suggested as Defense Step
The Movie Projectionist— as Seen from the Audience
Paraffin Fixes Leaky Windows as Well as Battery Terminals
Remember Now, Fellows— Only OLD Alarm Clocks!
Lots of Things Can Cause Excessive Oil Use
Now the Only Thing We Lack Is Some Juicy Fish Stories
Next We'll Have to Do It with Just Half a Tube
He Waives His Back Issues to Save Cargo Space
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IF YOU will look back to the September 1939 issue of your magazine, you will notice in the Un-Natural History department the statement that a person cannot be scented by a skunk if he holds him by the tail. I can tell you a different story. I had one of these animals by the tail and he scented me and I have three witnesses to prove it.
PopularScience_19411201_0139_006_0020.xml
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15
15
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The A. C. Gilbert Co.: NO. 8½ ERECTOR
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The A. C. Gilbert Co.
NO. 8½ ERECTOR
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PopularScience_19411201_0139_006_0021.xml
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16
16
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The Hygienic Products Co.
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The Hygienic Products Co.
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PopularScience_19411201_0139_006_0022.xml
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16
16
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MEAD GLIDERS: KI-YAK
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MEAD GLIDERS
KI-YAK
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PopularScience_19411201_0139_006_0023.xml
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17
17
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AMERICAN SCHOOL
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AMERICAN SCHOOL
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PopularScience_19411201_0139_006_0024.xml
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18
18
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Advertisement
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PopularScience_19411201_0139_006_0025.xml
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18
18
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WARNER ELECTRIC COMPANY
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WARNER ELECTRIC COMPANY
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PopularScience_19411201_0139_006_0026.xml
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19
19
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CLARENCE A. O'BkIEN
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CLARENCE A. O'BkIEN
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PopularScience_19411201_0139_006_0027.xml
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20
20
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Advertisements
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PopularScience_19411201_0139_006_0028.xml
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21
21
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CHARLES ATLAS
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CHARLES ATLAS
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PopularScience_19411201_0139_006_0029.xml
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22
22
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Advertisements
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PopularScience_19411201_0139_006_0030.xml
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23
23
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19411201_0139_006_0031.xml
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24
24
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Advertisements
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PopularScience_19411201_0139_006_0032.xml
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25
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PopularScience_19411201_0139_006_0033.xml
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26
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PopularScience_19411201_0139_006_0034.xml
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27
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PopularScience_19411201_0139_006_0035.xml
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28
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PopularScience_19411201_0139_006_0036.xml
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29
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PopularScience_19411201_0139_006_0037.xml
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30
30
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Advertisements
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PopularScience_19411201_0139_006_0038.xml
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31
31
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Advertisements
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PopularScience_19411201_0139_006_0039.xml
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32
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PopularScience_19411201_0139_006_0040.xml
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33
33
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Midwest Radio Corporation
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Midwest Radio Corporation
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PopularScience_19411201_0139_006_0041.xml
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34
34
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Advertisements
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PopularScience_19411201_0139_006_0042.xml
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35
35,36,37,38,39,40,41,42
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POPULAR SCIENCE Classified OPPORTUNITIES
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PopularScience_19411201_0139_006_0043.xml
advertisement
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43
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Advertisements
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PopularScience_19411201_0139_006_0044.xml
advertisement
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44
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Advertisement
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PopularScience_19411201_0139_006_0045.xml
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45
45
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Advertisement: POPULAR SCIENCE
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POPULAR SCIENCE
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PopularScience_19411201_0139_006_0046.xml
advertisement
46
46
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Advertisements
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PopularScience_19411201_0139_006_0047.xml
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47
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Advertisements
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PopularScience_19411201_0139_006_0048.xml
advertisement
48
48
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R. J. Reynolds Tobacco Co.: PRINCE ALBERT
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R. J. Reynolds Tobacco Co.
PRINCE ALBERT
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PopularScience_19411201_0139_006_0049.xml
article
49
49,50,51
News
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Electro-Coating
SCIENCE HARNESSES STATIC TO MANUFACTURE PRECISION ABRASIVES AND DAINTY FABRICS
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HARNESSING the electric force which crackles through your radio as static and makes your cat's hair stand on end, scientists have created revolutionary new sandpapers, long-wearing upholstery velvets, and dainty dress fabrics decorated with high-pile, embroiderylike designs.
PopularScience_19411201_0139_006_0050.xml
article
52
52,53,54,55,56,57
News
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Night Watchmen of the Skies
Ingenious Machines Aid Army Searchlight Crews in Air-Raid Protection
Our Cover
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JOHN WATSON
DRKNESS and silence cover the scene —the Coast Artillery area guarding a seaboard city—and the activities of the day seem long since to have ended. But in an isolated section, far away from the big-gun emplacements and the barracks, a small group of men are engaged in quiet, intense work.
PopularScience_19411201_0139_006_0051.xml
article
58
58
Radio
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Powerful Radio Station Housed on Tiny 150-Foot Island
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ON AN ISLAND in Long Island Sound, a mile off New Rochelle, N. Y., and only 150 feet square, is the new transmitter of WABC, 50,000-watt station of the Columbia Broadcasting System serving an audience of 14,000,000. It is topped by a 410-foot antenna tower on four concrete pillars, each a yard in diameter, which rest on bedrock and rise through the transmitter building without touching it.
PopularScience_19411201_0139_006_0052.xml
article
58
58
Inventions
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Novel Movie-Camera Boom Takes Long Shots and Close-ups
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A NINE-FOOT motion-picture camera boom which makes it possible to "truck in" from aerial long shots to extreme close-ups has been designed by John Arnold, camera chief at the Metro-Goldwyn-Mayer studios at Culver City, Calif. A camera on top of the outer end can be raised 16 feet above the stage; one beneath it can be laid on the floor.
PopularScience_19411201_0139_006_0053.xml
article
59
59,60,61,62
News
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LIGHTWEIGHT CHAMPION OF THE METALS
Magnesium Saves Pounds in Plane Engines, Making Lift for Men, Guns, Fuel
How and Where Magnesium Cuts Weight of Airplane Engines
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ALDEN P. ARMAGNAC
THE YEAR before Hitler marched his troops into the Rhineland, the United States produced only 2,000 tons of a metal called magnesium. War came, and our 1939 output reached 3,000 tons. The fall of France spurred U. S. preparedness and boosted the 1940 figure to 6,000 tons.
PopularScience_19411201_0139_006_0054.xml
article
63
63
Inventions
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Switchboard Near Camera Controls Movie Lights
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MOVIE electricians no longer need carry lights in and out to “balance the set,” since the invention by I. M. Combs, chief electrical engineer at the Warner Brothers studio, Burbank, Calif., of a control switchboard which dims any one light, any group, or all at once.
PopularScience_19411201_0139_006_0055.xml
article
63
63
Inventions
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Gun Shoots Even Coating of Glue Regardless of Its Angle
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GLUING wall boards to studs in housing construction is simplified by a gun which can spread two quarts of glue in an even one-inch line on 408 feet of studding. A doctor bar combined with a corrugated roll at the nose assures a uniform flow no matter how the gun is tipped or whether it is full or nearly empty.
PopularScience_19411201_0139_006_0056.xml
article
64
64,65,66,67,68,69
News
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Putting More Minutes Into Working Hours
PREPARING A LENGTH OF AVIATION IGNITION WIRE, BY THE OLD METHODS, TOOK AN OPERATOR A TOTAL OF...
NOW, THROUGH THE USE OF WORK-SIMPLIFICATION METHODS THE JOB TAKES THE SAME OPERATOR JUST . . . . . . . .
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SPENDING time to save time is proving a profitable investment for American companies sending representatives to the annual Work Simplification Conference, at Lake Placid, N. Y. Each concern invests $1,500 and six weeks of an employee’s time.
PopularScience_19411201_0139_006_0057.xml
article
70
70,71,72,73,74
News
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Falcons— FEATHERED HUNTERS FOR MAN
Sport of the Crusaders, Unchanged for Centuries, Lures Modern Americans
FIVE KINDS OF FALCONS USED IN ANCIENT SPORT
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EDWIN TEALE
HUNTING with hawks, a sport that flourished long before Marco Polo visited Kublai Khan, is now providing thrills for a growing number of Americans. In recent months, such organizations as the Smith-sonian Institution, the American Museum of Natural History, and the U. S. Biological Survey, have received inquiries from all over the country on trapping and training falcons.
PopularScience_19411201_0139_006_0058.xml
article
75
75,76,77,78,79,80,220
News
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Tanks CAN Be Destroyed
Land Battleships Meet Their Match in Hard-Hitting and Fast-Moving New Gun Carriers to Run Them Down
Granite Shaft Guides Diggers of 6039 A.D. to Time Capsule
New Alloy Improves Tin Foil
Plastic Coils Temper Light from Fluorescent Tubes
Insects Go on the Air from Miniature Broadcasting Studio
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HICKMAN POWELL
WHEN America's mechanized columns clattered into battle in the recent war games of the armies, they encountered a new type of weapon and a new style of tactics which on more than one occasion gave their tank battalions a thorough kicking around.
PopularScience_19411201_0139_006_0059.xml
article
81
81,82,83,84,85,220
News
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MODERN TROOP TRANSPORTS ARE Seagoing Combat Units
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THE nation's armed forces have perfected a new system for the sea transport of American troops. Every troop-carrying ship will become a fighting transport bearing a self-contained combat unit, fully equipped and with each man in fighting gear and trim, ready to do battle the moment it is landed.
PopularScience_19411201_0139_006_0060.xml
article
86
86,87
Inventions
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LIGHTING WITH PAINT
New Luminous Coating Has Many Practical Uses in the Home
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LUMINOUS paint of improved composition, especially developed for practical purposes rather than as a toy or dramatic stunt, now makes house numbers, doorknobs, keyholes, and bedroom slippers easy to find in the dark. It marks danger spots such as stair treads and electric fans.
PopularScience_19411201_0139_006_0061.xml
article
88
88
Inventions
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"Taxi" for Bombs Aids Police in Fight on Sabotage
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A "HURRY-UP WAGON" especially designed for bombs has been devised by the police department of Bridgeport, Conn., which has a large concentration of defense industries and is taking special precautions to prevent damage by sabotage. The device, also known as a "bomb taxi," is a cylindrical tank, reënforced by heavy cable and mounted on a two-wheeled trailer.
PopularScience_19411201_0139_006_0062.xml
article
88
88
Inventions
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Rescue Belt Helps Firemen to Carry Victims on Backs Like Knapsacks
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A RESCUE BELT that makes it easier to carry fire victims from burning buildings has been made standard equipment for each member of the Monrovia, Calif., fire department. The belt consists of a large loop of heavy web belting equipped with a sliding metal hook.
PopularScience_19411201_0139_006_0063.xml
article
89
89,90,91
News
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Cheaper Power for Defense Industries
MAMMOTH EARTH-AND-CONCRETE DAMS WILL HARNESS LAZY SOUTHERN COASTAL RIVERS IN VAST PROJECT
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ONE of the most important hydroelectric plants in the Eastern United States is taking shape in the low country of South Carolina, an area commonly believed to be too flat for the development of hydraulic power. Originally designed as a peacetime power and navigation program, this Santee-Cooper project will be finished in time to provide cheap electricity for new defense industries.
PopularScience_19411201_0139_006_0064.xml
article
92
92,93,94,95
News
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Anapolis Speeds Up
TO TRAIN MORE OFFICERS FOR OUR BIGGER NAVY
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KEEPING pace with the production_ of new fighting ships in America's naval expansion program, Annapolis has instituted a twofold speed-up in the instruction of officers. Four years’ training is being packed into three, and the Academy is accepting a larger number of eligible men than ever before.
PopularScience_19411201_0139_006_0065.xml
article
96
96,97
Here's My Story
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Here's My Story
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DR. C. GUY SUITS
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PopularScience_19411201_0139_006_0066.xml
article
98
98
Inventions
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manufacturing quiet for the movies
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SILK is not silk on a Hollywood sound stage, gravel is not gravel, cement is not cement, grass is not grass, carpets are not wool, walls are not wood, and a singer doesn’t sing. These are among the deceptions developed by the industry to kill stray noises.
PopularScience_19411201_0139_006_0067.xml
article
99
99
Aviation
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Portable Phones Save Time for Aircraft Workers
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TELEPHONES are being used to speed airplane production, but not in the way you would suspect. In the Republic Aviation Corporation’s plant at Parmingdale, N.Y., assembly-line workers use them for communication between men inside fuselages and those outside.
PopularScience_19411201_0139_006_0068.xml
article
99
99
Inventions
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Bracket Adjusted to Angle of Limb Keeps This Bird House Upright
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To MAKE the bird house shown at the left easy to mount in an upright position regardless of the angle of the branch to which it is to be fastened, it is fitted with an adjustable bracket which can be twisted to any desired position. The house, which is built for wrens and has an entrance too small to allow sparrows to enter, is designed to be fastened in place with cord, thus eliminating the need for tools when putting it up.
PopularScience_19411201_0139_006_0069.xml
article
100
100
DO YOU KNOW YOUR HAMMERS?
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DO YOU KNOW YOUR HAMMERS?
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IF YOU call any one of the ten tools pictured below a hammer, you are absolutely right. But what kind of a hammer? For there are almost as many kinds as there are trades and crafts. Illustrated are an upholsterer’s hammer, nail hammer, engineer’s hammer, jeweler’s (or hobbyist’s) hammer, machinist’s hammer, riveting hammer, machinist’s soft-face hammer, body worker’s (metalworker’s) hammer, chisel-edge claw hammer, and boiler inspector’s hammer.
PopularScience_19411201_0139_006_0070.xml
article
101
101
Un-Natural History
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Un-Natural History
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Gus Magees
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PopularScience_19411201_0139_006_0071.xml
article
102
102,103,104,105,106,107
News
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Can America Build Enough Airports?
WE NEED 4,000 OF THEM TO TAKE CARE OF OUR EXPANDING AIR FORCES
PRINCIPAL U.S. ARMY AIR FIELDS
IS A LITTLE CITY IN ITSELF
WHAT IT TAKES TO MAKE A BIG ARMY AIR FIELD
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P. O'MALLEY
HOW many airports is enough? America needs between 3,500 and 4,000, according to the Civil Aeronautics Administration, which has planned the nation’s airport-construction program. This program was presented to Congress in March, 1939, and was based on expansion of civil and commercial aviation anticipated at that time.
PopularScience_19411201_0139_006_0072.xml
article
108
108
Automobiles
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Troop Transport Truck and Trailer Go Almost Anywhere
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NEW U. S. Army troop-transport trailer permits the movement of large bodies of troops over difficult terrain. It was made possible through a type of axle known as "arc-ticulated," developed at Fort Ord, Calif., under the direction of Maj. Gen. Joseph W. Stillwell.
PopularScience_19411201_0139_006_0073.xml
article
108
108
[no value]
[no value]
Lightning is "Fingerprinted" to Identify Kinds of Bolts
[no value]
[no value]
[no value]
[no value]
"FINGERPRINTS" left by lightning on metal objects it strikes provide dews to its nature and help design protective devices. At the Western Electric and Manufacturing Company's laboratory at Sharon, Pa., a file of several hundred "fingerprints" has been collected by bombarding lightning rods, power-line conductors, and telephone wires with man-made lightning.
PopularScience_19411201_0139_006_0074.xml
article
109
109,110
SCIENCE STUNTS
[no value]
SIMPLE EXPERIMENTS SHOW PRINCIPLES OF ALL MACHINERY
[no value]
[no value]
[no value]
[no value]
TO PERFORM tasks beyond their strength, and to shorten light but time-consuming work, men long ago invented a few simple machines. TOday practically every sort of hand or power mechanism —even as complex as a car or a printing press —consists largely of a combination of those same fundamental devices.
PopularScience_19411201_0139_006_0075.xml
article
111
111
Aviation
[no value]
Two Propellers in Tandem Turning in Opposite Ways Give Warplanes New Speed
[no value]
[no value]
[no value]
[no value]
TWIN PROPELLERS, whirling in opposite directions on concentric shafts, are an expected innovation on at least five experimental warplanes of 1942. Current reports indicate that all leading U. S. propeller makers are making the “contra-prop” air-screws, and that they will boost cruising speeds, to say nothing of maximum speeds, well above the 400-mile-an-hour mark.
PopularScience_19411201_0139_006_0076.xml
article
112
112
Radio
[no value]
Program Analyzer Supplies Record of Audience's Reactions
[no value]
[no value]
[no value]
[no value]
HOW audiences like radio programs is determined by a program analyzer developed by Dr. Paul Felix Lazarfeld, of Columbia University, and Dr. Frank Stanton, of the Columbia Broadcasting Company. To each of a selected studio audience a pair of buttons is given, one for each hand, one green, and one red.
PopularScience_19411201_0139_006_0077.xml
article
112
112
[no value]
[no value]
Two-Car Diesel-Propelled Train Provides Full-Length Luxury
[no value]
[no value]
[no value]
[no value]
LUXURY of a full-length train is found in the two-car, Diesel-powered "Prospectors" of the Denver & Rio Grande Western Railroad. Sixty-two passengers are accommodated, with reclining coach seats for 44 in the first car and berths for 18 with dinette, dressing rooms, and observation lounge in the second.
PopularScience_19411201_0139_006_0078.xml
article
113
113,114,115
News
[no value]
ARMY'S SMOKE THROWERS
SCREEN TROOP MOVEMENTS
4.2-in. Chemical Shell
[no value]
[no value]
[no value]
TAKE an enemy by surprise, and he is already half defeated. How smoke screens keep him guessing whether you are attacking, withdrawing, receiving reinforcements, or shifting troops was recently demonstrated at Edgewood Arsenal, Md. Observers saw in ear-splitting action the Army's latest smoke-throwing equipment, developed by its Chemical Warfare Service for every situation to be encountered in modern war.
PopularScience_19411201_0139_006_0079.xml
article
116
116,117,118,119
HOW IT IS DONE
[no value]
Surf-Rod Making
[no value]
[no value]
[no value]
[no value]
TRICKS of the trade used by skilled workers in producing surf-fishing rods are revealed in this series of detailed photographs. Step by step, they show how a seven-foot piece of hexagonal bamboo and a few fittings are transformed into the finished rod.
PopularScience_19411201_0139_006_0080.xml
article
120
120,121
Inventions
[no value]
Metal That Mends Bones
NEW ALLOY PERMITS AMAZING FEATS OF SURGICAL CARPENTRY
[no value]
[no value]
[no value]
LIFESAVING feats of surgery, hitherto impossible, are being achieved with the aid of a remarkable new alloy. It provides surgeons, for the first time in medical history, with a metal that can be implanted permanently in the human body.
PopularScience_19411201_0139_006_0081.xml
article
122
122,123
Radio
[no value]
Heated Insulators
Safeguard Radio-Range Beacons
[no value]
[no value]
[no value]
STRETCHING like a safety chain along Canada's northernmost borders, radio range stations made possible by a new, heated tower insulator are being built to help protect North America from invasion. The stations, each having four triangular towers, will be spaced about 250 miles apart, and will guide commercial and military aircraft through territory that includes the frozen arctic.
PopularScience_19411201_0139_006_0082.xml
article
124
124
New Tools
[no value]
Vibrating Tool Engraves and Carves
[no value]
[no value]
[no value]
[no value]
A VIBRATING TOOL which makes 7,200 strokes a minute, with strokes adjustable up to ⅛ inch, is used for engraving, cutting, hammering, or carving on metal, wood, linoleum, sheet rubber, sheet cork, glass, ceramics, and most other materials.
PopularScience_19411201_0139_006_0083.xml
article
124
124
New Tools
[no value]
Midget Tools for Cramped Spaces
[no value]
[no value]
[no value]
[no value]
MIDGET TOOLS are often needed by repair men for use on compactly designed, streamlined machines, into which bulky tools will not fit. Tools which resemble toys but which are strong enough for most work have been designed to meet this problem.
PopularScience_19411201_0139_006_0084.xml
article
124
124
New Tools
[no value]
Direct-Reading Caliper
[no value]
[no value]
[no value]
[no value]
A DIRECT-READING CALIPER of four-inch size has been designed for home craftsmen and others who benefit by easier caliper reading. The scale, graduated in thirty-seconds, is directly in front of the user, and the markings are bright on a black background.
PopularScience_19411201_0139_006_0085.xml
article
124
124
New Tools
[no value]
Center Punch Drives Itself
[no value]
[no value]
[no value]
[no value]
A SELF-PUNCHING center punch that supplies its own kick has been placed on the market. The hard ened point is put on the spot to be marked, and the handle is pushed until a snap drives the point into the work.
PopularScience_19411201_0139_006_0086.xml
article
125
125,126,127
Inventions
[no value]
Portable Cableway
BRIDGES STREAMS TO CARRY ARMY TANKS AND TRUCKS
[no value]
[no value]
[no value]
SWIFTER transportation of U. S. Army trucks and tanks across rivers and ravines is made possible by a compact portable military cableway invented by Lt. Col. R. B. Lord. In three hours, 13 skilled men, with the help of 40 unskilled ones, can erect the 14-ton cableway and have loads up to 13 tons riding across its 1⅝-inch steel cable at the rate of one every four minutes.
PopularScience_19411201_0139_006_0087.xml
article
128
128
Book Review
[no value]
Book Review
[no value]
[no value]
[no value]
[no value]
HOW CAN YOU TELL if food has been adulterated? Judge the quality of paint? Determine the wearing ability of linen and cotton? Test fuel oils? Remove stains? Neutralize acid soil? Dozens of practical questions like these, with their answers, make "Test It Yourself!" (Scott, Foresman and Company) an attractive course in home chemistry.
PopularScience_19411201_0139_006_0088.xml
article
128
128
Aviation
[no value]
Cockpit Armor, Light and Tough, Protects Pilot from Bullets
[no value]
[no value]
[no value]
[no value]
SEEKING a lightweight armor of adequate strength to protect airplane pilots against the machine-gun fire of other planes, the Breeze Corporations, Inc., at Elizabeth, N. J., has developed a new method of production which appears to meet the mark.
PopularScience_19411201_0139_006_0089.xml
article
129
129,130,131,132,133
AUTO
Your Car's Oil System
Modern Lubrication Saves Your Engine
TWO NEW BUILT-IN OIL-FILTERING DEVICES
[no value]
[no value]
SCHUYLER VAN DUYNE
EVERY time you step on your car's self-starter, disaster is prevented by a layer of oil perhaps only a couple of molecules thick. If the layer were not where it should be—between the friction-bearing surfaces and the “journals” that revolve in them—your engine would soon “seize.”
PopularScience_19411201_0139_006_0090.xml
article
134
134
AUTO
[no value]
How To Save Gas
DO
DON'T
[no value]
[no value]
[no value]
BY KEEPING your car tuned up, and by driving carefully so that you travel the maximum number of miles on each gallon of gas, you can put pennies in your pocket, contribute to national defense, and be satisfied that your car is doing its best. This is particularly true in sections where a shortage of motor fuel exists.
PopularScience_19411201_0139_006_0091.xml
article
135
135
Auto Ideas
[no value]
Filling-Station Map Aids Drivers
[no value]
[no value]
[no value]
[no value]
PAINTED ON THE WALL of a filling station in Baltimore, Md., is the large-scale map of the city shown at the right. Located at Baker and Monroe streets, the station is on U. S. Route 1, a main north-and-south highway through the Eastern States.
PopularScience_19411201_0139_006_0092.xml
article
135
135
Auto Ideas
[no value]
Sealer Stops Windshield Leaks
[no value]
[no value]
[no value]
[no value]
WINDSHIELDS and other fixed panes of glass in automobiles are apt to develop leaks around the edges after they have been exposed to sun, rain, sleet, and snow, no matter how well they were set when the car was new. Frequently leaks are not bad enough to warrant removing the glass to fix them.
PopularScience_19411201_0139_006_0093.xml
article
135
135
Auto Ideas
[no value]
Tester Ends Gasoline Waste
[no value]
[no value]
[no value]
[no value]
GAS SAVER. With everybody seeking ways to make gasoline go farther, the portable exhaust-gas tester at the left should prove useful. Similar to carburetor-mixture indicators on plane engines, it can be used on the road or in the shop. A hose on the tester is inserted in the exhaust pipe, and a pointer moving across the scale below shows whether or not the carburetor is set for most efficient operation, and if it is not, what should be done to correct it.
PopularScience_19411201_0139_006_0094.xml
article
136
136,137
AUTO
[no value]
Are you guilty of these— 12 COMMON DRIVING FAULTS
And how about these?
[no value]
[no value]
[no value]
1 FAILURE TO SIGNAL. Sudden changes in speed and direction don't give the other fellow much of a chance to miss you 2 POOR JUDGMENT Trailing another car too closely or passing on a or curve are invitations to trouble 3 DISCOURTESY. The road hog is a danger to himself as well as pedestrians and the other drivers on the road
PopularScience_19411201_0139_006_0095.xml
article
138
138,139,140
AUTO
[no value]
Motorization Means More Mechanics ...So the Army Enlarges Its Auto School
[no value]
[no value]
[no value]
[no value]
IT to TAKES keep the more Army than rolling gasoline these and days. oil Mechanics are needed, hundreds and thousands of them. Not just ordinary mechanics, but men who have been trained in the intricacies of four-wheel drives, high-torque differentials, constant-velocity universal joints, and the thousand and one other special items that make the U. S. Army vehicles just about the best in the world.
PopularScience_19411201_0139_006_0096.xml
article
141
141
USEFUL AUTO HINTS
[no value]
Scraper for Ice and Frost
[no value]
[no value]
[no value]
H. A. T.
1 AN EFFICIENT SCRAPER for removing ice and frost, or just plain snow, from the windshields and windows of cars can be made from a piece of stiff fiber board, cut to the size and shape shown. Put a couple of these in your glove compartment when you ready your car for winter.
PopularScience_19411201_0139_006_0097.xml
article
141
141
USEFUL AUTO HINTS
[no value]
Preventing Loss of Filler Caps
[no value]
[no value]
[no value]
W.H.Q.
2 TO PREVENT LOSS of radiator and oil-filler-pipe caps of your car, solder heavy ball-type chains to the caps and connect the other ends with anchors of the types indicated in the drawings. The anchor holding the radiator cap should be made of brass or copper.
PopularScience_19411201_0139_006_0098.xml
article
141
141
USEFUL AUTO HINTS
[no value]
A Dashboard Pipe Bumper
[no value]
[no value]
[no value]
A.L.G.
3 A DASHBOARD PIPE BUMPER directly over a pull-out-type ash tray can be made by simply affixing a small piece of adhesive-backed rubber to the panel above the tray. Tapping the pipe bowl against the rubber will quickly empty the ashes into the open tray, making it unnecessary to use two hands for the chore.
PopularScience_19411201_0139_006_0099.xml
article
141
141
USEFUL AUTO HINTS
[no value]
Making a Baby-Bottle Warmer
[no value]
[no value]
[no value]
W.C.F.
4 TO MAKE A BABY-BOTTLE WARMER for use on automobile trips, bend two strips of galvanized iron to the shapes shown and rivet them together, adding a drop of solder or two for rigidity. Hung over a door of the car heater, the unit holds a bottle near enough to the blast of warm air to heat it as much as desired.
PopularScience_19411201_0139_006_0100.xml
article
142
142,143,144,218
AUTO
[no value]
GUS KEEPS 'EM ROLLING
GUS SAYS:
[no value]
[no value]
MARTIN BUNN
I DUNNO what we're going to do," Joe Clark gloomed to his Model Garage partner, Gus Wilson. "It was tough to lose Harry to the Army. Now he’s gone and got himself into that officers’ training school, so he’ll stay in the service a long time, and when he comes out it isn’t likely that he’ll be willing to come back to work as a grease monkey.
PopularScience_19411201_0139_006_0101.xml
article
145
145,146,147,148,149,150,151,152,153
HOME and WORKSHOP
[no value]
Cape Cod House Wins Third Prize
IN OUR HOME-PLANNING CONTEST
[no value]
[no value]
[no value]
First in popularity among our readers is the lovely, livable Cape Cod style. More houses of this type were submitted in our home-planning contest than any other. The best of these is the house designed by George and Margaret Mallory, of Evanston, III., who were awarded third prize in the contest (P.S.M., Oct. '41, p. 138).
PopularScience_19411201_0139_006_0102.xml
article
154
154,155
Home Building
[no value]
Third-Prize Winners
SUBMITTED 20 DRAWINGS, WROTE 6,000 WORDS
[no value]
[no value]
[no value]
GEORGE AND MARGARET MALLORY, of Evanston, Ill., were the only husband-and-wife team to win a top prize in the $1,000 POPULAR SCIENCE home-planning contest. Even before they were married, three years ago, this young couple began planning details of the house they hoped to own.
PopularScience_19411201_0139_006_0103.xml
article
156
156,157,158,159
HOME and WORKSHOP
[no value]
Duletide Decorations
MAKE YOUR HOME SAY "MERRY CHRISTMAS"
[no value]
[no value]
HENRY B. AUL
HOW is the time to begin planning something different in Christmas decorations for your house and lawn or garden. The usual multi-colored string of lights and illuminated tree are always pleasing, but perhaps your home possesses architectural features, landscaping, or other characteristics that will lend themselves to a more unusual—and distinctive—treatment.
PopularScience_19411201_0139_006_0104.xml
article
160
160
IDEAS for HOME OWNERS
[no value]
Weeding Turned into a Game
[no value]
[no value]
[no value]
[no value]
WEEDING BECOMES A GAME with a non-back-breaking weeder that has been put on the market. Stick the prongs on the end of the rod into the weed, twist, pull, and up comes weed and root. Point towards the gardern basket, press the trigger in the handle, and shoot.
PopularScience_19411201_0139_006_0105.xml
article
160
160
IDEAS for HOME OWNERS
[no value]
Insect Killer and Deodorizer
[no value]
[no value]
[no value]
[no value]
MOSQUITOES OR MOTHS are killed, or a kitchen deodorized, through the use of the basket and fan device shown at the left. In demothing a closet, a container fitting in the top is filled with crystal flakes of a standard moth repellent, and the air from the built-in fan circulates through them.
PopularScience_19411201_0139_006_0106.xml
article
160
160
IDEAS for HOME OWNERS
[no value]
Light for Outside Thermometer
[no value]
[no value]
[no value]
[no value]
ILLUMINATION FOR AN OUTSIDE THERMOMETER, shown at left, is provided by an attached battery flashlight controlled by a cord and push button. The thermometer and flashlight are attached to the outside window casing with two screws. The cord runs under the closed sash.
PopularScience_19411201_0139_006_0107.xml
article
160
160
IDEAS for HOME OWNERS
[no value]
Flexible Steel Plaster Knife
[no value]
[no value]
[no value]
[no value]
THIS FLEXIBLE KNIFE for filling joints between plaster boards, tile boards, and other wall boards, has a 4" blade with a square trowel edge. It is oil-hardened and tempered tool steel, and will bend to a point about 1¼" from the edge. The tang goes through the handle to the tip, and the handle is attached permanently with four brass compression rivets.
PopularScience_19411201_0139_006_0108.xml
article
161
161
IDEAS for HOME OWNERS
[no value]
Flexible Steel Plaster Knife
[no value]
[no value]
[no value]
[no value]
CONCRETE REPAIRING is simplified with a ready-mixed patching material that eliminates the necessity of chipping the old surface. The area to be repaired should be cleaned with a wire brush, and a little of the material scratched in with a trowel as it comes from the container.
PopularScience_19411201_0139_006_0109.xml
article
161
161
IDEAS for HOME OWNERS
[no value]
Refinishing Without Sanding
[no value]
[no value]
[no value]
[no value]
REFINISHING A GLOSSY SURFACE without sanding is possible with a new liquid which removes dirt, grease, and wax, deadens the gloss, and leaves the old finish slightly tacky, thus providing a base on which the new finish will bond readily. It is especially convenient for surfaces such as moldings where grooves and other spots hard to sand are numerous.
PopularScience_19411201_0139_006_0110.xml
article
161
161
IDEAS for HOME OWNERS
[no value]
Painting Over New Plaster
[no value]
[no value]
[no value]
[no value]
OIL PAINT THAT "BREATHES" is used now for painting over new plaster and masonry where formerly, because of the lime or alkali present, time for thorough drying was necessary to prevent deterioration of the finish. This new paint does not seal in the moisture, but allows the plaster to dry out after the finish has been applied.
PopularScience_19411201_0139_006_0111.xml
article
162
162,163
Miscellaneous
[no value]
KEEPING THE HOME SHIPSHAPE
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0112.xml
article
164
164
Two Craktwork Novelties
Gift Idea FOR XMAS
South American Vaquero Penholder
[no value]
[no value]
[no value]
[no value]
VAQUERO PENHOLDER. A South American vaquero on a balky horse provides the amusing decorative motif of this useful penholder. The piece can be made in about three hours and is an excellent gift project. Band-saw horse and rider together from ¾" thick mahogany or other hardwood.
PopularScience_19411201_0139_006_0113.xml
article
164
164,165
Two Craktwork Novelties
[no value]
Jolly Santa Claus Centerpiece
[no value]
[no value]
[no value]
[no value]
SANTA CLAUS CENTERPIECE. Cleverly stylized little deer and a simplified figure of jolly old Santa Claus on a loaded sled, flanked by twelve miniature candles, comprise this attractive Christmas centerpiece for dining table or mantelpiece.
PopularScience_19411201_0139_006_0114.xml
article
166
166
Woodworking
[no value]
BAND-SAWED Flower Stand IN REGENCY STYLE
A Great Furniture Designer Offers to Help You
[no value]
[no value]
J. A.
RARE is the home that has not some spot where flowers or a living plant may be displayed to advantage. If a stand is used for the purpose, however, it should be unobtrusive. The simple, dignified lines of this design, reminiscent of the Regency style that happens to be in popular favor at the present time, also make it an easy piece to build, even for beginners.
PopularScience_19411201_0139_006_0115.xml
article
167
167,168,169,170,171
Woodworking
[no value]
Handsaws AND HOW TO USE THEM
[no value]
[no value]
[no value]
EDWIN M. LOVE
MACHINES, versatile though they are, can never displace hand tools altogether in even a well-equipped workshop. Large or oddly shaped work sometimes cannot be handled on a machine. Pieces partially assembled may have to be completed by hand, and, of course, much jobbing and carpentry work is done outside the workshop with limited equipment.
PopularScience_19411201_0139_006_0116.xml
article
168
168
Shop Data File
[no value]
MORTISE-AND-TENON JOINTS
[no value]
[no value]
[no value]
[no value]
When drawings fail to give dimensions Of tenons or a craftsman is designing his own furniture, the following proportions will insure strong joints: Note: Where a tenon is not under much strain, its thickness maybe one third that of the rail; many mechanics, in fact, prefer that proportion.
PopularScience_19411201_0139_006_0117.xml
article
172
172
New Appliances for the Household
[no value]
Glass-Mirror Edging for Shelves
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0118.xml
article
172
172
New Appliances for the Household
[no value]
Cans That Heat Themselves
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0119.xml
article
172
172
New Appliances for the Household
[no value]
Accurate Modern Kitchen Scales
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0120.xml
article
172
172
New Appliances for the Household
[no value]
Adjustable Clothes-Closet Rod
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0121.xml
article
173
173
New Appliances for the Household
[no value]
Headlight Guides Electric Iron
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0122.xml
article
173
173
New Appliances for the Household
[no value]
Insuring Privacy of Windows
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0123.xml
article
173
173
New Appliances for the Household
[no value]
Self-Sharpening Paring Knife
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0124.xml
article
173
173
New Appliances for the Household
[no value]
Venetian Blind Cleaning Kit
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0125.xml
article
174
174,175
Woodworking
[no value]
Spirally Fluted Wooden Vases
HERE'S A NEW TRICK FOR WOOD TURNERS . . .
[no value]
[no value]
BENJAMIN NIELSEN
IF YOU are looking for a lathe project a little out of the ordinary, try making these wooden vases with their decorative flutings. For each vase turn a piece of walnut or other hardwood 7¼" long with a diameter of 2⅝" at one end and 2⅜" at the other.
PopularScience_19411201_0139_006_0126.xml
article
176
176
Gift Ideas FOR XMAS
[no value]
Napkin Holder Displays Curious Lattice Effect
[no value]
[no value]
[no value]
[no value]
SMALL pieces of nicely grained wood can be used to advantage in making this distinctly different napkin holder. If a band saw is available, the two panel patterns may be laid out on ⅝" stock, jigsawed, and split on the band saw to make four pieces ¼" thick.
PopularScience_19411201_0139_006_0127.xml
article
177
177
[no value]
Gift Ideas FOR XMAS
Folding Towel Rack Sawed from One Piece of Wood
[no value]
[no value]
[no value]
[no value]
ONE piece of wood is all you need to make this novel folding towel rack, which takes scarcely any room when not in use. Rip the stock as indicated in the diagram at the right, using a circular saw, if possible, and keeping the same side down so that the short superfluous kerfs due to the curvature of the blade will all be at the back of the finished piece.
PopularScience_19411201_0139_006_0128.xml
article
177
177
[no value]
[no value]
EMBOSSING
[no value]
[no value]
[no value]
[no value]
Embossing produces designs that are raised above the original leather surface. Make the design and shade all parts to be embossed. Transfer design to leather and tool it (Leather Craft—4). This should produce a clear outline of the design on the flesh side. Hold leather with flesh side up and force leather to be embossed down between fingers, using broad end of modeler or ball point.
PopularScience_19411201_0139_006_0129.xml
article
178
178,179
Woodworking
[no value]
Two Knitting Boxes...
TIMELY GIFTS FOR RED CROSS WORKERS
LIST OF MATERIALS
[no value]
[no value]
JOSEPH ARONSON
HOW that knitting has become an almost universal pastime among women, why not put one or both of these attractive knitting boxes on your craftwork gift list ? Either one will hold a good-sized piece of work and plenty of the “makings,” yet remain light enough to be carried easily from room to room.
PopularScience_19411201_0139_006_0130.xml
article
180
180
Gift Ideas FOR XMAS
[no value]
Distinctive Craftwork Projects
PREPARED ESPECIALLY FOR POPULAR SCIENCE READERS BY ERNEST R. DEWALT, INDUSTRIAL DESIGNER AND CRAFTSMAN
[no value]
[no value]
[no value]
THIS Christmas, why not give something nobody else can—your own craftwork? Now is the time to begin making gift articles. The two shown on these pages are practical, useful, and distinctive in design. TABLE TIDIER. Here is something to please the lady of the house.
PopularScience_19411201_0139_006_0131.xml
article
180
180,181
Gift Ideas FOR XMAS
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this unique game-room accessory. it is in
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[no value]
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tended to be mounted on the wall and re volves freely for convenience in racking or removing the bats. Initials, a club insignia, or a decalcomania can be applied to the piece in the center.
PopularScience_19411201_0139_006_0132.xml
article
182
182
Gift Ideas FOR XMAS
[no value]
Scroll Candleholders
ARE UNUSUAL CRAFTWORK PROJECTS
[no value]
[no value]
B. N.
A PAIR of graceful candleholders like the one illustrated will lend a charming touch to almost any decorating scheme. They can be band-sawed to shape from two blocks of walnut 2½" by 3⅛" by 7". Transfer the side view by means of ½" squares, saw out this profile, and carefully cut to the tapered form shown in the top view.
PopularScience_19411201_0139_006_0133.xml
article
182
182
Craftwork
[no value]
Novel Ornaments for Earrings Cut from Black Walnuts
[no value]
[no value]
[no value]
[no value]
THESE attractive novelty earrings were made from the tips of black walnuts. The screw clips can be obtained from an old, discarded pair of earrings, or a new set can be bought at the ten-cent store and the ornaments removed from them with a knife or a small pair of pliers.
PopularScience_19411201_0139_006_0134.xml
article
183
183
Gift Ideas FOR XMAS
[no value]
For Knitters....
A BALL-BEARING YARN REEL
[no value]
[no value]
K. D. SPRAGUE
KNITTERS and knitting everywhere! If ever there was a season dedicated to knitting, this winter is going to be one, so there could be nobetter time to make a few knitting accessories in your home workshop. First, of course, comes a knitting box or stand of some sort, and two designs have been suggested in a preceding article ( pages 178 and 179).
PopularScience_19411201_0139_006_0135.xml
article
184
184
Craftwork
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Small Stations for a Model-Railway Layout
[no value]
[no value]
[no value]
[no value]
NO MODEL-RAILWAY layout is complete without one so-called "through passenger station” or passing station located somewhere between the main terminals. The design of the station illustrated, which is intended for “O” gauge, was adapted from an actual structure as a symmetrical unit so that two or more may be placed together to form a station as long as desired.
PopularScience_19411201_0139_006_0136.xml
article
185
185,186
Craftwork
[no value]
Trackside Lumber Shed Enlivens Model Scene
[no value]
[no value]
[no value]
C. E. BLACK
FEW accessories will add more to the appearance of your railway layout than this realistic lumber shed, which is scaled to “O” gauge. For “HO” gauge, halve the dimensions given; for “OO” gauge, make them one fourth larger than for “HO.” Draw walls, windows, and doors on heavy cardboard, cut out with a sharp knife and steel straightedge, and tint these parts a light brown with water colors or oil stain.
PopularScience_19411201_0139_006_0137.xml
article
186
186
Craftwork
[no value]
Practical Pointers on Building and Repairing Model Planes
[no value]
[no value]
[no value]
FRANK ZAIC
WHEN VARIOUS UNITS of a model airplane are constructed directly over the full-size plan, the parts will stick to it, and the drawings have to be torn to remove the work. To prevent this, either use wax paper between the work and the plan, or coat the latter with soap or wax at each place a joint is in dicated.
PopularScience_19411201_0139_006_0138.xml
article
187
187,188
New Shop Ideas
[no value]
Homemade Drafting Machine
HOW TO LEARN PROFESSIONAL DRAFTING TECHNIQUE
[no value]
[no value]
L. C. PELTIER
A DRAFTING machine is a parallel-ruling machine which, by combining several of the most frequently used drawing tools in one instrument, enables a greatly simplified drafting technique to be employed. For practice work and ordinary shop drafting, a satisfactory machine can be made almost entirely from materials found in five-and-ten-cent stores.
PopularScience_19411201_0139_006_0139.xml
article
189
189
New Shop Ideas
[no value]
Tin Cans Catch Grit and Dust from Grinding Wheels
[no value]
[no value]
[no value]
W.E.B.
FOUR or five tin cans provide the material for an efficient dust catcher on a bench or pedestal grinder. Two cans, partly filled with automobile-engine oil, entrap and hold the gritty dust. The others furnish metal for making tubes or nozzles to carry the dust from the outlet openings in the wheel guards to the oil containers.
PopularScience_19411201_0139_006_0140.xml
article
189
189
Shop Data File
[no value]
ACME SCREW THREADS AND FORMULA
[no value]
[no value]
[no value]
[no value]
The Acme thread is used extensively for feed and adjusting screws on machinery, and is replacing the square thread in many instances because it is easier to cut. The included angle between the sides is 29 deg. As the accompanying formula shows, the depth is made equal to one half of the pitch plus 0.010" in order to provide clearance between the top of the screw thread and the bottom of the thread groove in the nut.
PopularScience_19411201_0139_006_0141.xml
article
190
190
MACHINISTS FOR DEFENSE
[no value]
How to Make Lathe Mandrels
[no value]
[no value]
[no value]
[no value]
A SET of mandrels such as shown in Fig. 1 is a good practice project for beginners in machine-shop work. Cut tool-steel stock to length and centerdrill it as in Fig. 2. This must be done with the utmost accuracy since it is necessary that the outer shell left from the rolling process be uniformly turned off.
PopularScience_19411201_0139_006_0142.xml
article
190
190,191
MACHINISTS FOR DEFENSE
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Constructing a Surface Gauge
DIMENSIONS FOR SOLID LATHE MANDRELS
[no value]
[no value]
C. W. WOODSON
COLD-ROLLED steel was used for the base, and drill rod for the spindle and scriber of the surface gauge (Fig. 1 on the facing page). Chuck the base stock and turn it (Fig. 2) to the dimensions in the drawings; next drill a center hole for tail-stock support and knurl the knob (Fig. 3).
PopularScience_19411201_0139_006_0143.xml
article
192
192
New Shop Ideas
[no value]
Lead Weights Stop Brake Drums from Vibrating in Lathe
[no value]
[no value]
[no value]
E. S. HARRIS
MECHANICS are all familiar with the tool chatter encountered when turning brake drums on a lathe. Various methods of deadening the vibration of the drum while turning it are used, but most of these require some time to install, are too much like a makeshift in appearance to be tolerated in a good shop, or lack sufficient weight to do an efficient job.
PopularScience_19411201_0139_006_0144.xml
article
192
192
New Shop Ideas
[no value]
Ball-Bearing Spindle Designed for High-Speed Service
[no value]
[no value]
[no value]
M. MIDDLETON
BOTH professional and amateur machinists may occasionally be required to construct spindles capable of running at 10,000 to 40,000 r.p.m., such as are used in tool-post grinders. However, designing such a spindle is not the simple matter it may appear at first glance.
PopularScience_19411201_0139_006_0145.xml
article
193
193,194,195,196
New Shop Ideas
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Adjustable GROWLER
Tests Large and Small Armatures
LIST OF MATERIALS
[no value]
[no value]
HAROLD P. STRAND
FOR testing the armatures of vacuum-cleaner, electric-drill, or other commutator-type motors, “universal” fans and motor-driven kitchen appliances, and automobile starters and generators, what is called a “growler” is generally used.
PopularScience_19411201_0139_006_0146.xml
article
197
197,198,199
Miscellaneous
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Food Chemistry
SHOWN BY SIMPLE KITCHEN-TABLE EXPERIMENTS
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[no value]
[no value]
WE MARVEL at the magic of modern chemistry, that changes wood pulp into artificial silk; coal tar into exquisite dyes; coal, air, and water into amazing fabrics and plastics. Yet, marvelous as these transformations may be, they are insignificant compared with the miracles that occur constantly in your own body.
PopularScience_19411201_0139_006_0147.xml
article
200
200
Radio Ideas
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Arm Plays Both Sides of Record
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[no value]
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A TANDEM PICK-UP ARM, which plays both sides of a phonograph record without turning it over, is the feature of a new automatic record changer. After the starting button is pressed, the new instrument will provide as much as two hours of uninterrupted music.
PopularScience_19411201_0139_006_0148.xml
article
200
200
Radio Ideas
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Painted Hammer-Metal Effect
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[no value]
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[no value]
A HAMMER-METAL EFFECT, such as is found on many of the latest amplifiers, microphones, and radio panels, can now be produced at home by means of a simple two-coat process. The base coat is applied with a paint brush, providing a smooth foundation.
PopularScience_19411201_0139_006_0149.xml
article
200
200
Radio Ideas
[no value]
Microphone for Long Distances
[no value]
[no value]
[no value]
[no value]
LONG-DISTANCE RECORDING for radio, television, and movies is made possible by a new "line microphone." Appearing at first glance like a telescope mounted on a wheeled tripod, it is ten feet long and consists of a series of quarter-inch pipes encased in a perforated metal sleeve.
PopularScience_19411201_0139_006_0150.xml
article
201
201
Radio Ideas
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Portable Set Uses House Current
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HOUSE CURRENT, either A.C. or D.C., can be used to operate a new camera-style personal radio. Including the rectifier, the little set is equipped with five tubes. It has a power-control switch on the dial panel and there is provision for the attachment of a separate window antenna for Increasing the sensitivity of the set.
PopularScience_19411201_0139_006_0151.xml
article
201
201
Radio Ideas
[no value]
German Plane Radio Below Par
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[no value]
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MESSERSCHMITT RADIO EQUIPMENT, obtained from a Nazi fighter plane shot down in England, has been examined carefully by American engineers. They have found the receiver, shown at right, lacking in many of the improvements standard on. American equipment.
PopularScience_19411201_0139_006_0152.xml
article
201
201
Radio Ideas
[no value]
Corner-Post Antennas for Autos....
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[no value]
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CORNER-POST ANTENNAS for automobiles have been designed as an aid to safer driving. By attaching the antenna at the corner of the car, the possibility of interfering with the sight of the driver is eliminated. The new-type antennas are curved to conform to modern streamlined design and are heavily chrome-plated.
PopularScience_19411201_0139_006_0153.xml
article
201
201
Radio Ideas
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Midget Tubes on Broadcast Band
[no value]
[no value]
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MIDGET TUBES recently developed primarily for use on the ultra-high-frequency bands also work satisfactorily on the broadcast band, making possible compact three and four-tube receivers. They have an overall height of 1¾ inches and a diameter of only 34 inches.
PopularScience_19411201_0139_006_0154.xml
article
202
202,203,204,205
Radio
[no value]
You Can Build— FM RECEIVER FOR $22
[no value]
[no value]
[no value]
ARTHUR C. MILLER
THIS unit is not just another FM converter, but a complete eight-tube FM receiver, and it can be built for only $22. Extremely compact, it is mounted in a cabinet usually sold for four-tube receivers. A simplified version of the original FM circuit is used, a circuit so rapidly becoming standard that a kit of low-cost components has been put on the market.
PopularScience_19411201_0139_006_0155.xml
article
206
206,207,208,209
Photography
[no value]
Good Portraits ITlust Be Planned
"There's no such thing as a lucky shot," says Pirie MacDonald in an interview with Popular Science
[no value]
[no value]
[no value]
PIRIE MACDONALD, world-famous portrait photographer, has given most of his life to the art of making human portraits of human beings. He is devoted to that art. He values it and respects it. He takes an artist’s and a craftsman’s pride in his work, and a deep satisfaction in the results of that work.
PopularScience_19411201_0139_006_0156.xml
article
210
210
Photography
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Fantastic Photo Patterns Without a Camera
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[no value]
[no value]
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FANTASTIC and beautiful “photograms”— shadow pictures caught on photographic printing paper without the use of a camera —may be easily made of glassware and other common household objects with the help of one or more ordinary flash lights.
PopularScience_19411201_0139_006_0157.xml
article
211
211
FOR CAMERA USERS
[no value]
Automatic Diaphragm on Graflex
[no value]
[no value]
[no value]
[no value]
AN AUTOMATIC DIAPHRAGM is the outstanding feature of a new Graflex camera. It permits the subject to be viewed with the maximum possible brilliance, and with the plane of sharpest focus clearly defined, right up to the instant of exposure.
PopularScience_19411201_0139_006_0158.xml
article
211
211
FOR CAMERA USERS
[no value]
New Mount for Color Films
[no value]
[no value]
[no value]
[no value]
COLOR FILMS and transparencies can be mounted by a new method that eliminates the use of glass, tapes, clamps, and other accessories. The mount is a clear protective covering banded with a self-sealing adhesive, which the manufacturer claims will not dry or crack with age.
PopularScience_19411201_0139_006_0159.xml
article
212
212
Photography
[no value]
Little Brother OF THE BIG HOLLYWOOD MOVIE CAMERAS
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[no value]
[no value]
[no value]
EMBODYING many of the refinements of professional 35-mm. movie cameras, a new 16-mm. outfit has been introduced, and the first model is being used by a Hollywood producer for commercial pictures. It is box-shaped, carries outside film magazines, and is fitted with a large four-lens turret.
PopularScience_19411201_0139_006_0160.xml
article
213
213
Photography
[no value]
Revolutionary Invention Gives Movies Great Depth of Focus
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[no value]
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MOTION-PICTURE scenes in which both close-ups and background are simultaneously in sharp focus are possible with a system of photography invented by Dr. Alfred N. Goldsmith, of New York, and his associates, Harry R. Menefee, William Mayer, and Fritz Kastilan.
PopularScience_19411201_0139_006_0161.xml
article
214
214
Photography
[no value]
Homemade Movie Turntable Produces Trick Titles
[no value]
[no value]
[no value]
M. G. WINTERTON
BY SPINNING titles, still photographs, or small objects on a plywood turntable such as the one illustrated, the amateur movie maker can obtain unusual effects and duplicate many of the professional tricks used by Hollywood. The construction is made clear in the accompanying drawings.
PopularScience_19411201_0139_006_0162.xml
article
214
214
Photography
[no value]
Dried Spot of Ink Aids in Focusing Enlarger Accurately
[no value]
[no value]
[no value]
A. L. ELLIOTT
IN FOCUSING an enlarger accurately, photographers often use a piece of dense film on which a number of scratches have been made. At rather large magnifications, however, this does not seem to give the desired degree of critical control.
PopularScience_19411201_0139_006_0163.xml
article
215
215
Photography
[no value]
Efficient Print Washer Flushes Itself Automatically
[no value]
[no value]
[no value]
CHARLES H. COLES
WASHING photographic prints correctly is so important that too much attention can hardly be given it. Experts agree that complete changes of water and thorough access of water to all prints are necessary, but to so wash prints by hand requires constant attention.
PopularScience_19411201_0139_006_0164.xml
article
216
216
Photography
[no value]
Making Developer Last Longer
[no value]
[no value]
[no value]
[no value]
To DELAY oxidation of a photographic developer, the bottle should be kept filled to the neck so that very little surface of liquid will be exposed to the air. One way to do this is to add glass marbles to make up for any small quantities lost during use.
PopularScience_19411201_0139_006_0165.xml
article
216
216
Photography
[no value]
Combination Projector Strip and Transparency File
[no value]
[no value]
[no value]
[no value]
FILING and viewing transparencies are both made more convenient with a combination film index and projector strip that is now on the market. Each, strip takes six transparencies, and contains space for index data. A case is available for holding 36 strips.
PopularScience_19411201_0139_006_0166.xml
article
216
216
Photography
[no value]
Rubber Battery Mat Prevents Film Holders from Sliding
[no value]
[no value]
[no value]
[no value]
A CORRUGATED rubber mat of the type used under storage batteries is a convenience on the loading bench of a photographic darkroom. The cut-film holders stand up firmly in the grooves of the mat and may be readily located in the dark.
PopularScience_19411201_0139_006_0167.xml
article
216
216
Photography
[no value]
Black Paper Slips Aid in Weighing Photographic Chemicals
[no value]
[no value]
[no value]
C. C.
THE BLACK paper sheets packed between pieces of cut film are useful in weighing chemicals, especially when you are making up a complicated or unfamiliar formula. It pays to save them for this. Use as many of the sheets in each instance as there are ingredients, and mark on each with a red pencil the abbreviated name of one ingredient, together with the amount required.
PopularScience_19411201_0139_006_0168.xml
advertisement
217
217
[no value]
[no value]
Eastman Kodak Co.: Kodak Super-XX
[no value]
Eastman Kodak Co.
Kodak Super-XX
[no value]
[no value]
PopularScience_19411201_0139_006_0169.xml
advertisement
218
218
[no value]
[no value]
HASTINGS MANUFACTURING CO.
[no value]
HASTINGS MANUFACTURING CO.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0170.xml
advertisement
219
219
[no value]
[no value]
NATIONAL CARBON COMPANY, INC.: Eveready
[no value]
NATIONAL CARBON COMPANY, INC.
Eveready
[no value]
[no value]
PopularScience_19411201_0139_006_0171.xml
advertisement
220
220
[no value]
[no value]
HENRY DISSTON & SONS, INC.
[no value]
HENRY DISSTON & SONS, INC.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0172.xml
article
220
220
[no value]
[no value]
Master Traffic Plans Urged to Ease Defense Congestion
[no value]
[no value]
[no value]
[no value]
TRAFFIC CONGESTION threatens to create a new bottleneck in the defense program, according to Capt. C. Reynolds Weaver of the War Department’s general staff. “We soon will have 250,000 military motor vehicles on the nation’s highways,” Captain Weaver explains.
PopularScience_19411201_0139_006_0173.xml
advertisement
221
221
[no value]
[no value]
ETHYL GASOLINE CORPORATION: THE ETHYL EMBLEM
[no value]
ETHYL GASOLINE CORPORATION
THE ETHYL EMBLEM
[no value]
[no value]
PopularScience_19411201_0139_006_0174.xml
advertisement
222
222
[no value]
[no value]
Advertisement: CASCO POWDERED CASEIN GLUE
[no value]
[no value]
CASCO POWDERED CASEIN GLUE
[no value]
[no value]
PopularScience_19411201_0139_006_0175.xml
advertisement
222
222
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19411201_0139_006_0176.xml
advertisement
223
223
[no value]
[no value]
Delco-Remy: DELCO Batteries
[no value]
Delco-Remy
DELCO Batteries
[no value]
[no value]
PopularScience_19411201_0139_006_0177.xml
advertisement
224
224
[no value]
[no value]
ATLAS PRESS COMPANY
[no value]
ATLAS PRESS COMPANY
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0178.xml
article
225
225
[no value]
[no value]
Bicycle Lock Held Safely Underneath the Saddle
[no value]
[no value]
[no value]
GEORGE GAHAGAN
I WAS recently confronted with the problem of providing my daughter's new bicycle with means for carrying a bicycle lock in such a manner that it would not interfere with her riding, would not scratch the enamel, could not be removed by meddlesome persons, and would not rattle.
PopularScience_19411201_0139_006_0179.xml
article
225
225
[no value]
[no value]
Rubber Flashlight Extension Enters Small Openings
[no value]
[no value]
[no value]
F. C.
A FLEXIBLE flashlight extension of great utility is easily made from a length of rubber tubing, a piece of rubber-insulated lamp cord, two wooden plugs, and a flashlight bulb socket. The tubing should be ⅜" in outside diameter and not too hard.
PopularScience_19411201_0139_006_0180.xml
advertisement
225
225
[no value]
[no value]
Kester Solder Company: KESTER METAL MENDER
[no value]
Kester Solder Company
KESTER METAL MENDER
[no value]
[no value]
PopularScience_19411201_0139_006_0181.xml
advertisement
226
226
[no value]
[no value]
NICHOLSON FILE CO.
[no value]
NICHOLSON FILE CO.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0182.xml
advertisement
226
226,228
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19411201_0139_006_0183.xml
advertisement
227
227
[no value]
[no value]
The Delta Manufacturing Co.: DYNAMIC BALANCING
[no value]
The Delta Manufacturing Co.
DYNAMIC BALANCING
[no value]
[no value]
PopularScience_19411201_0139_006_0184.xml
advertisement
228
228
[no value]
[no value]
HOMASOTE COMPANY
[no value]
HOMASOTE COMPANY
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0185.xml
article
228
228
[no value]
[no value]
1941 Home and Workshop Index Now Ready
[no value]
[no value]
[no value]
[no value]
YOU can save yourself hours of searching through your back issues of POPULAR SCIENCE for some desired information by ordering a copy of the Home and Workshop Annual Index, now available for 1941. Every article on home building, woodworking, craftwork, shop methods, house repairs, model making, radio, automobiles, and the like is not only listed alphabetically, but also carefully and completely cross-indexed.
PopularScience_19411201_0139_006_0186.xml
advertisement
229
229
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[no value]
The Lionel Corporation
[no value]
The Lionel Corporation
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0187.xml
advertisement
230
230
[no value]
[no value]
National Educational Alliance, Inc.
[no value]
National Educational Alliance, Inc.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0188.xml
advertisement
230
230
[no value]
[no value]
IDEAL-X
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IDEAL-X
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0189.xml
advertisement
230
230
[no value]
[no value]
A. J. FISHER
[no value]
A. J. FISHER
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0190.xml
advertisement
230
230
[no value]
[no value]
Bell & Howell Company
[no value]
Bell & Howell Company
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0191.xml
article
230
230
[no value]
[no value]
New Photo-Slide Projector Has Lamp Placed Base Up
[no value]
[no value]
[no value]
[no value]
WIND-TUNNEL cooling, which is provided by a motor-driven fan, and an especially efficient lamp are features of this new slide projector for mounted 2" by 2" transparencies in color or black and white. The lamp is placed base up in order to keep its sides clear of black deposit, thus avoiding any reduction of light.
PopularScience_19411201_0139_006_0192.xml
article
230
230
[no value]
[no value]
Movie Editor's Fading Kit
[no value]
[no value]
[no value]
[no value]
ODD movie scenes can be joined with smooth "fades" or "wipes" and without abrupt loss of continuity through the use of a kit which contains fading dye and masking tape. The extreme end of the film to be faded is weighted down in a tray, and the end is then lowered slowly into the solution frame by frame.
PopularScience_19411201_0139_006_0193.xml
advertisement
231
231
[no value]
[no value]
MINNEOTA MINING & MFG. CO.: Scotch Tape
[no value]
MINNEOTA MINING & MFG. CO.
Scotch Tape
[no value]
[no value]
PopularScience_19411201_0139_006_0194.xml
advertisement
231
231
[no value]
[no value]
HARLEY-DAVIDSON MOTOR CO.
[no value]
HARLEY-DAVIDSON MOTOR CO.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0195.xml
advertisement
232
232
[no value]
[no value]
VICTOR J. EVANS & CO.
[no value]
VICTOR J. EVANS & CO.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0196.xml
article
232
232,235,236,239
With the Inventors
[no value]
With the Inventors
[no value]
[no value]
[no value]
[no value]
ANY FLASHLIGHT becomes an electric prod, capable of keeping angry bulls and other animals at a respectful distance, with the addition of an attachment devised by Sidney F. Andrus, of Troy Center, Wis. His accessory contains a vibrator and coil, acting together as a transformer, to turn the feeble power of the flashlight cells into a high-voltage shock of 400 to 2,000 volts at the ends of a pair of prongs.
PopularScience_19411201_0139_006_0197.xml
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233
233
[no value]
[no value]
The A. C. Gilbert Co.: GILBERT CHEMISTRY SET
[no value]
The A. C. Gilbert Co.
GILBERT CHEMISTRY SET
[no value]
[no value]
PopularScience_19411201_0139_006_0198.xml
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233
233
[no value]
[no value]
WALKER-TURNER CO., Inc.: WALKER-TURNER MACHINE TOOLS
[no value]
WALKER-TURNER CO., Inc.
WALKER-TURNER MACHINE TOOLS
[no value]
[no value]
PopularScience_19411201_0139_006_0199.xml
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234
234
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0200.xml
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235
235
[no value]
[no value]
UNCLE SAM
[no value]
UNCLE SAM
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0201.xml
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235
235
[no value]
[no value]
Chicago Wheel & Mfg. Co.
[no value]
Chicago Wheel & Mfg. Co.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0202.xml
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236
236
[no value]
[no value]
Advertisements
[no value]
ALLIED RADIO
NEW 1942 RADIOS
ALLIED RADIO
1942 SOUND SYSTEMS
[no value]
[no value]
PopularScience_19411201_0139_006_0203.xml
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237
237
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0204.xml
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238
238
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0205.xml
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239
239
[no value]
[no value]
Smooth-On Manufacturing Co.
[no value]
Smooth-On Manufacturing Co.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0206.xml
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240
240
[no value]
[no value]
Advertisement: Popular Science
[no value]
[no value]
Popular Science
[no value]
[no value]
PopularScience_19411201_0139_006_0207.xml
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241
241
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0208.xml
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242
242
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0209.xml
article
243
243
[no value]
[no value]
Pipe Cleaners Find New Use as Child's Hair Curlers
[no value]
[no value]
[no value]
MRS. RUTH SWALLOW
PIPE cleaners are used for many purposes besides the one for which they are sold— cleaning and dusting small mechanisms, applying soldering paste or acid, glue, and other liquid preparations to small work, touching up damaged spots and small parts with paint or enamel, and so on.
PopularScience_19411201_0139_006_0210.xml
article
243
243
[no value]
[no value]
Old Inner Tube Supplies Special Rubber Bands
[no value]
[no value]
[no value]
G. S. G.
IT IS sometimes difficult to obtain rubber bands in special widths and lengths, but they can easily be made by cementing the ends of a sheet of inner-tube rubber to make a tube of the required diameter. The individual bands can then be neatly cut with the aid of a print trimmer.
PopularScience_19411201_0139_006_0211.xml
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243
243
[no value]
[no value]
UNITED STATES PLYWOOD CORP.
[no value]
UNITED STATES PLYWOOD CORP.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0212.xml
advertisement
244
244
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0213.xml
advertisement
245
245
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0214.xml
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246
246
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0215.xml
advertisement
247
247
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0216.xml
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248
248
[no value]
[no value]
SOUTH BEND LATHE WORKS
[no value]
SOUTH BEND LATHE WORKS
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0217.xml
advertisement
249
249
[no value]
[no value]
Wm. H. Wise & Co., Inc.
[no value]
Wm. H. Wise & Co., Inc.
[no value]
[no value]
[no value]
PopularScience_19411201_0139_006_0218.xml
advertisement
250
250
[no value]
[no value]
LIGGETT & MYERS TOBACCO CO.: Chesterfields
[no value]
LIGGETT & MYERS TOBACCO CO.
Chesterfields
[no value]
[no value]
PopularScience_19411201_0139_006_0219.xml