Issue: 19420601

Monday, June 1, 1942
JUNE 1942
6
True
140
Thursday, December 25, 2014

Articles
cover
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POPULAR SCIENCE
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PopularScience_19420601_0140_006_0001.xml
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0_2,1
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D. Van Nostrand Co.
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D. Van Nostrand Co.
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PopularScience_19420601_0140_006_0002.xml
tableOfContents
2
2,4,6,8
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CONTENTS for JUNE, 1942
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PopularScience_19420601_0140_006_0003.xml
masthead
2
2
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POPULAR SCIENCE
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PopularScience_19420601_0140_006_0004.xml
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3
3
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Book Give-Away Plan
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Book Give-Away Plan
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PopularScience_19420601_0140_006_0005.xml
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4
4
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Advertisement: PEPSI-COLA
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PEPSI-COLA
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PopularScience_19420601_0140_006_0006.xml
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5
5
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19420601_0140_006_0007.xml
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6
6
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THE SIMONIZ CO.
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THE SIMONIZ CO.
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PopularScience_19420601_0140_006_0008.xml
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7
7
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Advertisement: Champion Spark Plugs
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Champion Spark Plugs
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PopularScience_19420601_0140_006_0009.xml
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8
8
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U. S. MERCHANT MARINE
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U. S. MERCHANT MARINE
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PopularScience_19420601_0140_006_0010.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_19420601_0140_006_0011.xml
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10
10
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The ROSICRUCIANS
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The ROSICRUCIANS
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PopularScience_19420601_0140_006_0012.xml
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10
10
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Advertisement: POPULAR SCIENCE
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POPULAR SCIENCE
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PopularScience_19420601_0140_006_0013.xml
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10
10
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Advertisement
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PopularScience_19420601_0140_006_0014.xml
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11
11
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CHARLES ATLAS
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CHARLES ATLAS
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PopularScience_19420601_0140_006_0015.xml
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12
12
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Advertisement
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PopularScience_19420601_0140_006_0016.xml
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13
13
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19420601_0140_006_0017.xml
article
14
14,16,18
Readers Say:
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Readers Say:
Sometimes the Easy Way Is Also the Best Way
Watchmaker Wants to Build Listening Device for Ticks
What Was an Ingenious Man Doing with a Steel Tape Like That?
What to Do with Old Batteries Is Next on the Program
Wanted: A Portable Short-Wave Receiver for Civilian Defense
Sorry We Couldn't Publish ALL the Answers on This
CORRECTION
An Electrician Testifies to Danger of Overfusing
P.S.M. in Dentist's Office Was a Local Anesthetic
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J. E.’s PROBLEM about the two warships and the speedboat is quite simple if you go at it the right way. It reminded me of an article you published many years ago, in which you told of an intelligence test given to Army officers. One problem stated that two cyclists started ten miles apart and rode toward each other at the rate of five miles an hour.
PopularScience_19420601_0140_006_0018.xml
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15
15
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THEO. AUDEL & CO.
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THEO. AUDEL & CO.
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PopularScience_19420601_0140_006_0019.xml
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16
16
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Mobil Specialties: MOBIL HANDY OIL
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Mobil Specialties
MOBIL HANDY OIL
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PopularScience_19420601_0140_006_0020.xml
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17
17
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THE ELECTRIC AUTO-LITE COMPANY: SPARK PLUGS
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THE ELECTRIC AUTO-LITE COMPANY
SPARK PLUGS
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PopularScience_19420601_0140_006_0021.xml
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18
18
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WESTERN CARTRIDGE COMPANY: Western Super-X LONG RANGE .22's
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WESTERN CARTRIDGE COMPANY
Western Super-X LONG RANGE .22's
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PopularScience_19420601_0140_006_0022.xml
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19
19
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Advertisements
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PopularScience_19420601_0140_006_0023.xml
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20
20
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J. Stevens Arms Company: No. 240 OVER and UNDER .410 SHOTGUN
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J. Stevens Arms Company
No. 240 OVER and UNDER .410 SHOTGUN
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PopularScience_19420601_0140_006_0024.xml
article
20
20,22
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Plan Now for Summer Sport with Our Car-Top Boat
BOATS
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HERE’S summer fun as you like it! Imagine yourself at the tiller of our new plywood boat Tops, shown above. This light utility craft can be used on any water, carried on an automobile, and easily portaged to places out of reach by car for fishing, shooting, or beach trips.
PopularScience_19420601_0140_006_0025.xml
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21
21
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Advertisements
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PopularScience_19420601_0140_006_0026.xml
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22
22
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The Hygienic Products Co.
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The Hygienic Products Co.
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PopularScience_19420601_0140_006_0027.xml
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22
22
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The American Pad & Textile Co.
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The American Pad & Textile Co.
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PopularScience_19420601_0140_006_0028.xml
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22
22
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Advertisement: Popular Science Monthly
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Popular Science Monthly
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PopularScience_19420601_0140_006_0029.xml
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23
23
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Advertisements
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PopularScience_19420601_0140_006_0030.xml
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24
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Advertisements
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PopularScience_19420601_0140_006_0031.xml
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25
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Advertisements
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PopularScience_19420601_0140_006_0032.xml
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26
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Advertisements
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PopularScience_19420601_0140_006_0033.xml
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PopularScience_19420601_0140_006_0034.xml
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PopularScience_19420601_0140_006_0035.xml
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29
29,30,31,32,33,34,35,36
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POPULAR SCIENCE Classified OPPORTUNITIES
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PopularScience_19420601_0140_006_0036.xml
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36
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Advertisement: Popular Science Monthly
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Popular Science Monthly
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PopularScience_19420601_0140_006_0037.xml
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36
36
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MICROSCOPE
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MICROSCOPE
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PopularScience_19420601_0140_006_0038.xml
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37
37
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Advertisements
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PopularScience_19420601_0140_006_0039.xml
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38
38
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Advertisement: POPULAR SCIENCE MONTHLY
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POPULAR SCIENCE MONTHLY
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PopularScience_19420601_0140_006_0040.xml
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39
39
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Advertisements
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PopularScience_19420601_0140_006_0041.xml
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40
40
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R. J. Reynolds Tobacco Co.,
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R. J. Reynolds Tobacco Co.,
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PopularScience_19420601_0140_006_0042.xml
article
41
41,42,43
News
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MODELING WITH MOLECULES
TWO ATOMS OF CARBON (BLACK) AND FOUR OF CHLORINE JOINED IN A MODEL MOLECULE OF TETRACHLORETHYLENE, MADE WITH "BUILDING BLOCKS" THAT HELP A CHEMIST TO ANALYZE MOLECULAR STRUCTURE, SYNTHESIZE COMPOUNDS
A MOLECULE OF CARBON DIOXIDE: ONE ATOM OF CARBON, TWO OF OXYGEN
LINKED BENZENE RINGS IN MODEL OF NAPHTHALENE
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KENNETH M. SWEZEY
BRIGHTLY colored "building blocks,” atom models with which chemistry students and top-ranking chemical researchers alike can construct three-dimensional models of molecules of thousands of organic compounds, are science’s newest aid to the study of molecular structure.
PopularScience_19420601_0140_006_0043.xml
article
44
44,45,46,47,48,49
News
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DYNAMITERS TO THE ATTACK
High Explosives Are the Weapons of U. S. Army's Demolition Men
This is one way of attaching a fuse to a stick of dynamite
The charge may be set off either electrically or by fuse
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HICKMAN POWELL
WHEN the tales of this war come to be told, the man with a satchel full of TNT will rank with the most dashing and intrepid of all its heroes. Whether he be parachutist, commando, or assault pioneer from the Corps of Engineers, he will be operating as a lone wolf or with a small squad of teammates; but there will be concentrated in him a tremendous share of the responsibility for success against the enemy.
PopularScience_19420601_0140_006_0044.xml
article
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50,51
News
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Tin From Old Tin Cans
CHEMISTRY MINES NATION'S DUMPS FOR VITAL WAR METAL
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TIN cans, carefully collected in some parts of the United States, are rapidly finding their way into reclaiming plants where the tin coating and base metal are separated for future use in wartime production. The process of detinning is simple, although practical only when other sources of the metal are cut off.
PopularScience_19420601_0140_006_0045.xml
article
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52
Automobiles
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Army Wreckers Rescue Trucks
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UNCLE SAM has made special I provision for getting his Army trucks out of serious difficulty with a minimum of delay. When a convoy is moving over mountainous terrain, it sometimes happens that a truck tumbles into a canyon, and without special equipment it would just have to stay there.
PopularScience_19420601_0140_006_0046.xml
article
53
53,54,55,56,57
News
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A WAR GAS THAT SAVES LIVES
Carbon Dioxide—the Stuff That Fizzes in a SodaGuards Fighters Against Perils of Fire and Water
HOW CO2 IS MADE
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WHEN the pilot of a military airplane goes aloft, his safety depends primarily upon his skill as a flyer, the speed and maneuverability of his ship, and the fire power and accuracy of his guns. But if these fail, if his engine catches fire or he has to bail out over water, he may owe his life to one of the most commonplace of substances—carbon dioxide, our old friend CO2, which permits a permanent wave to be set without congealing it in gum, and puts the sparkle in your beer and the fizz in your ice-cream soda.
PopularScience_19420601_0140_006_0047.xml
article
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55
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Our Cover
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FAST WORK by the crash-truck crew of a military airport is the subject of this month’s cover painting by Anton Kurka. Designed for rescuing flyers from planes that catch fire in taking off or landing, the truck carries banked cylinders of carbon dioxide for smothering the flames.
PopularScience_19420601_0140_006_0048.xml
article
58
58,59,60,61
News
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Keeps 'Em Flying
THE AERO STOREKEEPER, WITH HIS 108,000 ITEMS--
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THE Army needs a new propeller blade at Mobile, Ala. A teletype order flashes over the wires to its air depot at Patterson Field, Fairfield, Ohio. Within three and a half hours, a fast plane bearing the blade glides to a landing, and mechanics are installing it in place of a damaged one.
PopularScience_19420601_0140_006_0049.xml
article
62
62,63,64
Aviation
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MANTA Fighter Has Contra-Rotating Props
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NAMED the Manta after the giant ray fish it resembles, an American fighter plane of extraordinary design will be test-flown this summer by the Manta Aircraft Corp., of Los Angeles, Calif. Designers maintain that it can cross the Atlantic Ocean nonstop, or climb to 40,000 feet in 18 minutes, combining the performance of a long-range bomber and an interceptor.
PopularScience_19420601_0140_006_0050.xml
article
65
65
Aviation
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Flying Arsenals Pace Bombers on Raids
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CAPABLE of speeds well over 350 miles an hour, Britain’s Westland Whirlwind long-range single-seater fighter plane is an important member of the R.A.F. bomber escort. A low-wing monoplane, the craft is powered by two 850-horsepower Rolls Royce engines and armed with four deadly 20-mm. cannon mounted in the nose.
PopularScience_19420601_0140_006_0051.xml
article
66
66,67
News
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AMERICA'S TANK FAMILY
Its Newest Member, the Versatile M-4 Medium, Goes into Production
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WITH the new M-4 Medium tank rolling off the assembly lines, the U. S. Army now has a complete, all-purpose tank family. Ranging from the 57-ton Heavy to the fast and maneuverable 15-ton Light, these tanks are said by observers to be a match for anything the enemy has.
PopularScience_19420601_0140_006_0052.xml
article
68
68,69,70,71
News
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Craftsmen Volunteer Skills and Machines to Aid War Production
GOVERNMENT EXPERTS ARE IMPRESSED BY THE LARGE NUMBER OF REGISTRANTS IN THE POPULAR SCIENCE SURVEY WHO ARE CAPABLE OF HIGH-PRECISION WORK AND BY THE SUPPLY OF SMALL BUT EFFICIENT POWER TOOLS IN THEIR SHOPS
REGISTER FOR WAR WORK
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ARTHUR GRAHAME
THE nation-wide survey of home-workshop and small-machine-shop man power and manufacturing facilities being made by POPULAR SCIENCE has proved that there are many thousands of Americans who know how to make things, and who own the tools to make them with, who are patriotically eager to use their skill and their equipment to help make our mighty win-the-war production drive a resounding success.
PopularScience_19420601_0140_006_0053.xml
article
72
72
Facts and Ideas
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Patrol Boats Are Built Upside Down to Give Navy New One Each Week
Steps in Assembly-Line Construction of Small Patrol and Fighting Ships
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RUSHING the assembly of light patrol boats and submarine chasers to the rate of one a week is accomplished by a new technique in which the hull is built upside down and then righted for the installation of superstructure. The upside-down method of construction enables welders to work more conveniently and speedily with the plates under their feet.
PopularScience_19420601_0140_006_0054.xml
article
73
73,74,75,76,77,78,212,214
News
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Five Medical Miraclesthe Sulfa Drugs
Chemical Blueprints Reveal How Atoms Fit Together in These Powerful New Weapons Against Infection and Disease
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CARL DREHER
CARBOLIC acid is an antiseptic. It kills “germs”—microörganisms which cause infection. If we could dip a man into strong carbolic acid, all the germs in his body would be dead in a short time. But the man would be dead too, for the stuff is as damaging to healthy tissues as to the microscopic plants and animals which made him sick in the first place.
PopularScience_19420601_0140_006_0055.xml
article
79
79,80
Facts and Ideas
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LIGHTWEIGHT CARBINE
INCREASES ARMY'S FIRE POWER
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PETE KUHLHOFF
UNCLE SAM is arming many of his soldiers with a new gun. Officially tagged U. S. Carbine Caliber .30 M-1, it is at present in production and will no doubt be with troops by the time you read this. The new light gun will replace about 80 percent of the .45 caliber automatic (self-loading) pistols now being used in the service.
PopularScience_19420601_0140_006_0056.xml
article
81
81
Un-Natural History
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Un-Natural History
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Gus Mager
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PopularScience_19420601_0140_006_0057.xml
article
82
82,83,84,85,86,87
HOW IT IS DONE
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How to Handle a Rope
A CHAMPION GIVES YOU A LESSON WITH THE LARIAT
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TOM ROAN
THE use of rope as a catcher goes back to the days when primitive man spread vine loops and crude grass ropes to snare animals for his food. But it took the American cowboy to become an artist with a rope. In long days in the saddle, drifting lazily with a trail herd, or hours alone during the night herding, the rope became his plaything.
PopularScience_19420601_0140_006_0058.xml
article
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88
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NEW TOOLS
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SLIPPING MACHINE BELTS are said to take a firm hold after an application of a new compound recently put on the market. The compound, made in stick form, is applied to both the inner and outer surfaces of the belt while the machinery is in operation.
PopularScience_19420601_0140_006_0059.xml
article
89
89,90,91,92,93
News
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Moseley's Boys Make Good
ACE CIVILIAN TRAINER OF CRACK WAR PILOTS TEACHES THEM TO GET IN CLOSE FOR THE "OLD SUNDAY PUNCH"
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ANDREW R. BOONE
MAJOR C. C. MOSELEY, who piloted a Spad in France in 1918, is fighting vicariously now on every American and British front. Flyers who got their primary and basic training at his four schools in California have distinguished themselves in engagements over the North Sea and the south seas.
PopularScience_19420601_0140_006_0060.xml
article
94
94,95
News
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MECHANICAL MOLE BORES CROOKED WELLS
Drills Through Rock with Acid or Hydraulic Cutter, Biting Way Up, Down or Horizontally
Huge Water Well Draws Supply Through “Wagon-Wheel“ Intake
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GUIDED by remote control from the surface, a mechanical mole burrows horizontally, up, or down through the depths of the earth, in a radical new system of well-drilling developed for the Dow Chemical Company of Midland, Mich. Only one main shaft need be sunk to drain all parts of a “pay formation” of petroleum, natural gas, water, or brine, from which the firm extracts lightweight magnesium metal for airplanes.
PopularScience_19420601_0140_006_0061.xml
article
96
96,97
Here's My Story
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Here's My Story
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DR. VANNEVAR BUSH
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PopularScience_19420601_0140_006_0062.xml
article
98
98,99
News
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Inventors Offer Thousands of Ideas to Help Beat the Axis
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GROUND STRAFER. Seventy-five heavy guns, mounted in five banks of fifteen guns each with their barrels radiating from a revolving drum, would give a low-flying attack bomber devastating fire power against the enemy below. A touch of a button fires one bank of guns out through a port in the belly of the plane; the drum is then turned to bring another bank into firing position ARMORED CARRIER for men or ammunition is towed by a half-track power unit.
PopularScience_19420601_0140_006_0063.xml
article
100
100
Aviation
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Portable Sound-Detector Units Made for Airplane Spotters
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A SELF-CONTAINED sound detector, easily carried and operated by one person, makes it possible for individual aircraft spotters to hear approaching aircraft through a set of earphones. When the lowpitched sound is picked up, the spotter slowly turns his body until the sound is loudest.
PopularScience_19420601_0140_006_0064.xml
article
100
100
Facts and Ideas
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Welders' Helmets Wired for Sound So Instructor Can Talk to Pupil
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A NEW METHOD of instruction in welding involves the use of a telephone between the instructor’s welding helmet and that of the apprentice. In this way, the instructor is able to talk in a normal voice without risking injury by removing his helmet to make himself heard.
PopularScience_19420601_0140_006_0065.xml
article
101
101
Facts and Ideas
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"Petrified Lightning" Is Formed by Catching Man-Made Bolts in Sand
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BY CATCHING bolts of artificial lightning in a pail of sand, Westinghouse engineers duplicate one of nature’s rarest phenomena. The research workers obtain man-made fulgurites—glasslike tubes of crooked shape, formed when a lightning bolt strikes and fuses sand during its search for an electrical ground.
PopularScience_19420601_0140_006_0066.xml
article
102
102,103,104,105,216
News
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GAS ATTACKS FROM THE AIR
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COL. ALDEN H. WAITT
WHEN the almost incredible striking power of air chemical warfare is revealed, the world will be as surprised as it was by the success of the first German mass attacks by tanks and mechanized troops supported by airplanes. Chemicals could be used from the air on a tremendous scale—not by single flights or squadrons of aircraft, but by massed squadrons of planes dropping gas in overwhelming quantities.
PopularScience_19420601_0140_006_0067.xml
article
106
106,107,108,109,110,111,112
News
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You Build 'Em—We'll Bust 'Em
That's the Taunt of a Team of Tank Drivers Who Try to Show the Engineers What's Wrong with Their Tank Traps
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HICKMAN POWELL
RALEIGH BOAZE of Danville, Va., is 22 years old. Three years before he arrived at this hoary age of discretion, he went out one night in a brand-new car his dad had given him, opened her up wide, and somehow tangled with the tail end of a cargo trailer.
PopularScience_19420601_0140_006_0068.xml
article
113
113
Aviation
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Long-Range Navy Patrol Bomber Goes into Mass Production
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A NEW and improved American patrol bomber, the twin-engined Martin “Mariner” or PBM-3, has gone into mass production for the Navy. Flying boats of this type perform the dual mission of scouting and bombing. Unlike smaller planes of limited range, they can be flown thousands of miles to distant combat zones.
PopularScience_19420601_0140_006_0069.xml
article
113
113
Automobiles
[no value]
Rubber-Tired Trucks Carry Explosives on Road or Rails
[no value]
[no value]
[no value]
[no value]
TRAVELING on road or rail, rubber-tired vehicles now safeguard transport of explosives at U. S. arsenals and powder depots. Flanged steel wheels, raised or lowered from the driver’s seat by a hydraulic ram, guide a car on the tracks, while the tires cushion a 3,000-pound load of explosives against jolts.
PopularScience_19420601_0140_006_0070.xml
article
114
114
Aviation
[no value]
Airplane Playing Cards
PILOTS PRACTICE SPOTTING WITH
[no value]
[no value]
[no value]
AMERICAN pilots recently returned from England have imported a novel card game played by members of the Royal Air Force. The game, devised to keep profiles of enemy and Allied planes fresh in the pilot’s mind, is similar to rummy. Instead of the traditional suits, however, profiles of American, British, German, and Italian planes are printed on the faces of the cards.
PopularScience_19420601_0140_006_0071.xml
article
115
115
Aviation
[no value]
Double Radio Beams Guide Planes
[no value]
[no value]
[no value]
[no value]
POWERFUL “doubletrack” radio beams, transmitted from radio range stations 30 miles apart, now make it possible for United Air Lines planes to doublecheck their approach to Salt Lake City, Utah. As a plane nears Ogden, Utah, where the first transmitter is located, one pilot tunes his radio to the frequency of the Ogden range while the other pilot tunes to the frequency of the Salt Lake range.
PopularScience_19420601_0140_006_0072.xml
article
115
115
[no value]
[no value]
Incendiary-Bomb Fighter Carries Water Reserve
[no value]
[no value]
[no value]
[no value]
To COMBAT fires caused by incendiary bombs, a California inventor has recently devised a portable firefighting apparatus that will operate efficiently even though its water supply is cut off. The unit is normally supplied with water from a regular house outlet, although it can be operated by drawing its supply from a 20-gallon tank mounted on the hand truck.
PopularScience_19420601_0140_006_0073.xml
article
116
116
Inventions
[no value]
Rubber-Balloon Globe Puts the World in Your Pocket
[no value]
[no value]
[no value]
[no value]
CARRYING the world in your pocket is no task with this balloon globe designed to keep you abreast of world events. The rubber balloon can be inflated by three or four lungfuls to a diameter of eight inches. The neck is then twisted and passed through a slot in the cardboard disk which is used as a base.
PopularScience_19420601_0140_006_0074.xml
article
116
116
[no value]
[no value]
A Portable Postal Scale Aids Air-Mail Users
[no value]
[no value]
[no value]
[no value]
LETTERS of two ounces or less can be weighed by a pocket scale that fits into a small leather case when not in use. In operation, it is necessary merely to fasten one edge of the letter to a clip and hold the scale by a ring. The working parts are simple and there are no springs to stretch.
PopularScience_19420601_0140_006_0075.xml
article
116
116
Inventions
[no value]
Sound Meter Helps Linemen Find Faults in Telegraph Cables
[no value]
[no value]
[no value]
[no value]
LINEMEN can easily find trouble spots in leadcovered telegraph cables by sliding a pick-up coil along a suspected cable and watching a meter which fluctuates over the faulty area. This new apparatus, an improvement on the tone and search-coil method, consists of a pick-up coil coupled to a small, sensitive amplifier.
PopularScience_19420601_0140_006_0076.xml
article
117
117,118,119
HOW IT IS DONE
[no value]
TRAINING BLOODHOUNDS
FOR POLICE WORK
[no value]
[no value]
[no value]
TEACHING a bloodhound to hunt lost persons or trail criminals requires patience and understanding, according to Trooper William W. Horton, bloodhound trainer attached to Troop K of the New York State Police. Pictures on the two following pages show the methods used by Trooper Horton and his assistant, Trooper Robert Thomson, in initiating Smarty, a hand-picked pup, into the mysteries of police duty.
PopularScience_19420601_0140_006_0077.xml
article
120
120,121
[no value]
[no value]
Spiral Radio Beam
PREVENTS WAVE-JAMMING, IS SECRET
[no value]
[no value]
SCHUYLER VAN DUYNE
WAVE-JAMMING—the wartime practice of beaming a superpowered wave toward an enemy’s radio sets to ruin reception—is defeated by a new-type radio system developed by John Hays Hammond, Jr., Gloucester, Mass., inventor and radio engineer.
PopularScience_19420601_0140_006_0078.xml
article
122
122
Inventions
[no value]
Prefabricated Houses Easily Put Up for Growing Farm Stock
[no value]
[no value]
[no value]
[no value]
SMALL, prefabricated buildings for farm stock are being turned out to fill a need caused by the rapid expansion of food production for the war. Cut at lumber yards from blueprint designs originated at Purdue University, these knockdown, plywood animal houses can be assembled by the average farmer and a helper in an hour or so apiece.
PopularScience_19420601_0140_006_0079.xml
article
122
122
Inventions
[no value]
Office Recorder Puts Three Hours of Talk on Ten-Inch Disk
[no value]
[no value]
[no value]
[no value]
A NEW office recorder makes it possible to record three hours of conversation, dictation, and the like on a single ten-inch plastic disk. Paper-thin, the disk is curved on a special turntable while the machine is in use. Sound, picked up by a microphone or by connection to a telephone line or radio, is amplified to provide power for molding an actual image of the sound wave on the record material.
PopularScience_19420601_0140_006_0080.xml
article
123
123
Automobiles
[no value]
New Two-Story Trailer Telescopes to Become Mobile Traveling Unit
[no value]
[no value]
[no value]
[no value]
ONE of the solutions offered for the temporary housing problem is a two-story, telescoping trailer, which has equal possibilities as a comfortable vacation cottage. When the trailer is on the road, the upper floor is telescoped over the lower for mobility.
PopularScience_19420601_0140_006_0081.xml
article
123
123
Facts and Ideas
[no value]
Rolling Restaurants Serve Quick Hot Meals in Plane Plant
[no value]
[no value]
[no value]
[no value]
FEEDING workers on the war-plant assembly line is a speed-up process which the Cessna Aircraft Company has developed to a fine point with a rolling cafeteria designed to its specifications. Mealtime has been cut more than half, permitting shifts to knock off earlier, food cost lowered by central preparation, and palatability improved by electric warming that keeps lunches piping hot right up to eating time.
PopularScience_19420601_0140_006_0082.xml
article
124
124,125,126,127,128
AUTOS
[no value]
Longer Life for Your CAR'S BATTERY
[no value]
[no value]
[no value]
SCHUYLER VAN DUYNE
WHEN an automobile battery goes dead, more often than not it’s a case of murder. In this once most wasteful of nations, few car batteries lived out their allotted years. They were starved, worked, shaken, scorched, or crushed to death in a sort of mass slaughter.
PopularScience_19420601_0140_006_0083.xml
article
129
129
[no value]
[no value]
Care of Inner Tubes
DO'S
DON'TS
[no value]
[no value]
[no value]
WITH proper care, an inner tube will last as long as a tire casing of comparable quality. But it must fit, it must be carefully installed, and, after installation, should be pumped up, completely deflated, then pumped up a second time to recommended pressure.
PopularScience_19420601_0140_006_0084.xml
article
130
130,131
[no value]
[no value]
EIGHT THINGS TO DO TO IMPROVE YOUR CAR
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0085.xml
article
132
132
[no value]
[no value]
Auto Ideas
[no value]
[no value]
[no value]
[no value]
A DISPENSING PUMP that handles gasoline, alcohol, water, kerosene, or any common liquid without danger of seizing or sticking has been devised for farms, machine shops, stores, and other places where a variety of fluids are handled. Using a diaphragm-type pumping unit instead of a piston, the dispenser is intended to draw liquid directly from drums or underground storage tanks, passing it through a flexible hose to the desired container.
PopularScience_19420601_0140_006_0086.xml
article
133
133,134,135,210
[no value]
[no value]
GUS solves a mystery
With a truck and its driver both apparently allergic to graveyards, the Model Garage boss has spooks plus motor trouble to lick—at 3 a. m.
GUS SAYS:
Plastic from Corn and Pine
[no value]
[no value]
MARTIN BUNN
ONE evening when Gus Wilson was working overtime in his Model Garage shop the door was pushed open and a man he didn’t know came in. He was a middle-aged, competent-looking citizen obviously plenty worried about something. He gave Gus a quick look and said: “You’re Mr. Wilson, I take it.”
PopularScience_19420601_0140_006_0087.xml
article
136
136,137,138,139,140,141
PHOTOGRAPHY
[no value]
Preparing Prints for Mounting
[no value]
[no value]
[no value]
KONRAD CRAMER
MANY amateur photographers seem to think that once the print image has appeared in the developer, fixing and washing remain as mere formalities, to be rushed through as quickly as possible. They content themselves with stained or impermanent prints, “oyster-shelled” surfaces, and imperfect compositions instead of taking the pains to wash, dry, and crop their photographs properly—only to hasten forth to take more pictures, which in turn are sure to suffer the same fate.
PopularScience_19420601_0140_006_0088.xml
article
142
142,143
Photography
[no value]
IDENTIFICATION PHOTOS
Speedily Taken with Low-Cost Outfit
[no value]
[no value]
[no value]
THE war has caused a tremendous increase in the use of photographic identification badges. Manufacturers with warwork contracts are required by the Government to provide such badges for all employees, and various voluntary organizations are also using “passport” photos in large numbers.
PopularScience_19420601_0140_006_0089.xml
article
144
144,HW1,HW2,HW3,HW4
HOME AND WORKSHOP
[no value]
The DRILL PRESS-its uses in woodworking
A DRILL PRESS ADDS EFFICIENCY TO THE WOODWORKING SHOP. HERE THE TABLE IS BEING CHECKED FOR BORING AT AN ANGLE
[no value]
[no value]
EDWIN M. LOVE
IT MIGHT be supposed that a drill press would be of limited usefulness in the woodworking shop, but actually it is one of the most efficient timesavers among power tools. It may be used to bore, rout, shape, mortise, sand, carve, cut dovetails, and make dowels, as well as for drilling and grinding metals.
PopularScience_19420601_0140_006_0090.xml
article
HW4
HW4
Woodworking
[no value]
Rack for Drill-Press Bits Forms a Good Practice Project
[no value]
[no value]
[no value]
E. M. L.
IF YOU’RE learning to use a new drill press, what could be more appropriate than making this rack? It is easily attached to the motor bolts on the drill-press head, and will hold several woodworking bits, mortising chisels, and twist drills of the most frequently used sizes.
PopularScience_19420601_0140_006_0091.xml
article
HW5
HW5
Miscellaneous
[no value]
Rubber Hose Pieces Pad Bicycle "Kick Stand"
[no value]
[no value]
[no value]
[no value]
CHILDREN frequently kick their bicycle stands up or down when they are at play with little regard for the wear they put on shoe leather or the damage done to its neat appearance. However, this shoe scuffing can be prevented, or at least lessened, by providing a rubber pad for the “kick stand.”
PopularScience_19420601_0140_006_0092.xml
article
HW5
HW5
New Shop Ideas
[no value]
Pieces of Sandpaper Anchor Straightedge
[no value]
[no value]
[no value]
PAUL R. LONGNECKER
WHEN large pieces of cardboard have to be trimmed or mats cut, the straightedge can be kept from slipping by a small piece of fine sandpaper pasted face out under each end. This helps also with smooth templates and other guides.
PopularScience_19420601_0140_006_0093.xml
article
HW5
HW5
The Handy Man
[no value]
Easily Installed Storm Sash Forms Inclosure for Porch
[no value]
[no value]
[no value]
R. M. DUNBAR
A PORCH can be transformed into a sleeping room, free from drafts and rain, by raising these easily made folding sash frames. They fold flat against the wall when not in use, and are translucent enough to let in daylight. In openings more than 48" wide, fit a center stud and make two sashes.
PopularScience_19420601_0140_006_0094.xml
article
HW6
HW6,HW7
Outdoors
[no value]
Painting Outdoor Furniture
Suggested Color Combinations
[no value]
[no value]
MAURICE WHARTON
TODAY, when it is wise to use the familyautomobile as sparingly as possible, the garden and porch are more than incidental to the home—they may well become strategic centers of entertainment and relaxation. Boxes of flowers and shrubs, bamboo screens, fiber rugs, and other simple accessories, together with some lighting arrangement to extend the hours of enjoyment well into the evening, will transform a terrace, porch, or patio into an attractive outdoor living room during the summer.
PopularScience_19420601_0140_006_0095.xml
article
HW8
HW8
The Handy Man
[no value]
Putty Knife Is Aid in Lifting Tongue-and-Groove Flooring
[no value]
[no value]
[no value]
EVERETT ZEIGLER
WHEN a section of tongueand-groove flooring must be removed for access to wiring or pipes, a putty knife cut about 1" short and sharpened to an edge as shown will be found a useful tool. Locate the two nearest joists by tapping the floor, bore a hole in the flooring alongside each joist, and saw the piece off with a compass saw.
PopularScience_19420601_0140_006_0096.xml
article
HW8
HW8
The Handy Man
[no value]
Sure-Grip Wire Buckle Holds Straps Cut from Inner Tube
[no value]
[no value]
[no value]
ALFRED NEUMAN
USEFUL rubber straps up to 7' or 8' long can be cut from old automobile inner tubes, but heretofore they have not been of much use because it was difficult, if not impossible, to obtain a suitable buckle or fastener. The homemade buckle illustrated at the right, however, holds a rubber strap firmly and never slips under tension.
PopularScience_19420601_0140_006_0097.xml
article
HW8
HW8
Electrical
[no value]
U-Shaped Conduit Facilitates Setting Outlet Boxes Flush
[no value]
[no value]
[no value]
[no value]
CONNECTING two outlet boxes with a single straight piece of conduit is difficult where the boxes face opposite sides of the wall. An easier way is to use a U-shaped piece that enters the sides of the boxes, which can be adjusted exactly flush in the finished wall before the conduit connectors are tightened.
PopularScience_19420601_0140_006_0098.xml
article
HW8
HW8
Outdoors
[no value]
Wet Gloves Aid Outdoor Cook
[no value]
[no value]
[no value]
SIGMUND SAMETH
DON’T burn your fingers trying to retrieve a potato from the embers. Take a pair of canvas work gloves to your next picnic. Soaked in water, they protect almost as much as asbestos.
PopularScience_19420601_0140_006_0099.xml
article
HW9
HW9
Woodworking
[no value]
Small Pieces of Matched Veneer Cut from Scrap Stock
[no value]
[no value]
[no value]
J. BRUMFIELD
SCRAPS of rare or even ordinary woods with especially pleasing grain can be utilized for inlays or matched veneer surfaces on small craftwork pieces such as cigarette or jewel boxes. To prepare the material, plane or sand one side of it smooth and flat.
PopularScience_19420601_0140_006_0100.xml
article
HW9
HW9
New Shop Ideas
[no value]
Rubber Tube Aids in Placing Steel Balls in a Bearing
[no value]
[no value]
[no value]
B. N.
THE always awkward task of replacing small steel balls in a ball bearing becomes a good deal easier if a piece of rubber tubing of suitable diameter is used to pick them up. Just press the end of the tubing gently on a ball. It will grip so that the ball can be lifted and put in place.
PopularScience_19420601_0140_006_0101.xml
article
HW9
HW9
[no value]
[no value]
Solder Serves for Plating Screws
[no value]
[no value]
[no value]
N. E. HYKAS
A SUBSTITUTE for plated screws and bolts may be made by first warming brass or iron ones, then dipping them into soldering acid, and finally immersing them in molten solder for a few seconds. Shake the excess solder off briskly.
PopularScience_19420601_0140_006_0102.xml
article
HW9
HW9
New Shop Ideas
[no value]
Junked Auto-Generator Parts Form Lathe Accessories
[no value]
[no value]
[no value]
A. J. McCANN
EXTRA faceplates, screw centers, drill pads, and other accessories for wood and metal-turning lathes are easily made from old automobile-generator pulley hubs. Those bored for a ⅝" shaft are a useful size. Drill or chisel off the rivets. Drill and tap the hub for a 5/16" set screw, and you have a small, precisely machined faceplate for mounting in the chuck on a ⅝" straight arbor.
PopularScience_19420601_0140_006_0103.xml
article
HW10
HW10,HW11
Woodworking
[no value]
FOUR DISTINCTIVE Record Cabinets
[no value]
[no value]
[no value]
JOSEPH ARONSON
ALL too many commercially made record cabinets do not meet the home planner’s needs, either because they do not afford enough storage space or because they fail to harmonize with other furnishings. Here the home craftsman has a real advantage, for distinctive, practical pieces of this kind are not difficult to make.
PopularScience_19420601_0140_006_0104.xml
article
HW12
HW12,HW13
Outdoors
[no value]
Good Sport with a Throwing Sticks
[no value]
[no value]
[no value]
CHARLES
BERTRAM BROWNOLD
AMONG the weapons of primitive man, the throwing stick is one of the simplest to make and use, and it therefore has all the elements of an entertaining outdoor target game, provided space is available and sufficient precautions can be taken against accidental injury to onlookers.
PopularScience_19420601_0140_006_0105.xml
article
HW14
HW14,HW15
MACHINISTS FOR WAR WORK
[no value]
Wiggler Indicator Tests Centering of Work Mounted in Lathe
[no value]
[no value]
[no value]
[no value]
THIS type of indicator (Fig. 1) is held in the tailstock of a lathe for testing work in a chuck or on a faceplate. With the wiggler point inserted in a center-punch mark, the work is rotated and adjusted until the wiggler point runs true. The steel shank is taper-turned from a ¾" steel bar to fit the tailstock spindle, the outer end being drilled for a spiral spring and a follower plug, which exert pressure against a ball on the end of the needle.
PopularScience_19420601_0140_006_0106.xml
article
HW15
HW15
MACHINISTS FOR WAR WORK
[no value]
Making Heavy-Duty Tap Wrench Gives Practice in Taper Turning
[no value]
[no value]
[no value]
[no value]
THE tap wrench shown in Fig. 1 is compact and very strong. It can be constructed in various sizes; as dimensioned, it will take taps from ¼" to The operations involved in making it are straightforward, yet varied enough to be interesting. Use ⅝" square cold-rolled steel for the two handles.
PopularScience_19420601_0140_006_0107.xml
article
HW16
HW16,HW17
[no value]
[no value]
IDEAS FOR HOME OWNERS
[no value]
[no value]
[no value]
[no value]
AWNING PAINT that is sun resistant and water repellent has been developed to meet a need, now that householders are thinking more and more in terms of making old things do instead of buying new. It can be brushed or sprayed on either faded duck or canvas, will not stiffen the fabric or crack, and will retard mildew and rot.
PopularScience_19420601_0140_006_0108.xml
article
HW18
HW18,HW19,HW20
Home and Workshop
[no value]
Servicing Electric Clocks
[no value]
[no value]
[no value]
HAROLD P. STRAND
MODERN electric clocks of the better grade are such dependable timepieces and require so little attention that their trouble-free operation is taken for granted. Occasionally, however, one may refuse to run, stop inexplicably when the line voltage drops too low, become noisy, or otherwise misbehave.
PopularScience_19420601_0140_006_0109.xml
article
HW21
HW21
Miscellaneous
[no value]
Quection Bee
[no value]
[no value]
[no value]
[no value]
CAN YOU IDENTIFY THESE NAILS? The ten shown in the drawings below are frequently used by craftsmen. Establishing their identity should give little trouble to the average woodworker. They are a finishing nail, flathead barbed car nail, steel-cut flooring nail, flooring brad, roofing nail, oval-head chisel-point spike, slating nail, gimp tack, clamp nail, and clout nail, but they are not, of course, shown in this order.
PopularScience_19420601_0140_006_0110.xml
article
HW22
HW22,HW23
Craftwork
[no value]
Flintlock Blunderbuss
[no value]
[no value]
[no value]
CARL G. ERICH
ONE of the most picturesque of the old flintlock guns is the blunderbuss, which was often carried by coach guards for protection against highwaymen. Its effective range was very short, for the charge of balls or slugs spread rapidly from the flaring muzzle.
PopularScience_19420601_0140_006_0111.xml
article
HW23
HW23
Craftwork
[no value]
Realistic Blue-Steel Finish
ON WHITTLED GUNS
[no value]
[no value]
PAUL H. RAGON
FLINTLOCKS, butt plates, barrels, and similar “metal” parts of whittled firearms and other models can easily be given a realistic blued-steel finish. After the piece has been sanded smooth, apply a thin coat of flat black paint and let this dry overnight.
PopularScience_19420601_0140_006_0112.xml
article
HW24
HW24,HW25,HW26,HW27,HW28,HW29
Home and Workshop
[no value]
CAR-TOP BOAT
FOR FISHING, HUNTING, AND FAMILY USE
MATERIALS FOR THE CAR-TOP BOAT
[no value]
[no value]
Bruce
Willard Crandall
OUR new plywood boat Tops is designed for the man who wants a portable, all-around utility boat for fishing and hunting trips or family use. It can be taken anywhere on top of the car and has the advantage of not requiring a trailer in these days when the tire problem is so acute.
PopularScience_19420601_0140_006_0113.xml
article
HW29
HW29
Shop Data
[no value]
ELECTROPLATING WITH NICKEL
[no value]
[no value]
[no value]
[no value]
Nickel plating. Next to copper, nickel is probably the most useful plating metal. Except in the case of certain cutting and machine tools, the work should first be copper plated unless it is made of copper or brass having a high copper content.
PopularScience_19420601_0140_006_0114.xml
article
HW30
HW30
Craftwork
[no value]
Miniature Anvil SERVES AS Paper Weight
[no value]
[no value]
[no value]
J. W. LAWRENCE
THE anvil in the old blacksmith’s shop never looked like very much, but reduce it to a miniature and you see at once the fine proportions and sweeping curves of its sturdy form. A scale model of the size shown in the accompanying drawings is an attractive project, and it can be put to practical use as a paper weight.
PopularScience_19420601_0140_006_0115.xml
article
HW31
HW31
Craftwork
An Aid for Shaving or Make-Up
Adjustable Mirror
[no value]
[no value]
[no value]
ERNEST R. DEWALT
WHETHER you use soap and brush or belong to the motorized shaving division, a better job results if you can see what you’re doing. This mirror bracket is instantly adjustable to any angle and will throw light on any part of the face. If you want one for shaving, play safe by making two—because this little accessory happens to be ideal for feminine make-up as well.
PopularScience_19420601_0140_006_0116.xml
article
HW32
HW32
Craftwork
[no value]
Turued Fruit Bowl
DISPLAYS WOOD-CARVED EFFECT
[no value]
[no value]
FRANK WHEELOCK
ALTHOUGH the outside of this bowl looks hand carved, the piece was actually made on the lathe and band saw. A disk 9" in diameter is first cut from 3" thick walnut or other hardwood, either solid or glued up from thinner stock. Mount this on a faceplate and turn the outside to the contour shown in the drawing.
PopularScience_19420601_0140_006_0117.xml
article
HW33
HW33
Craftwork
[no value]
Compact Mending Kit
HOLDS A VARIETY OF SEWING NEEDS
[no value]
[no value]
[no value]
A CONVENIENCE both for home use and for traveling, this sewing kit holds 30 or more darning and mending items in one neat, compact unit. A hinged rack accommodates 12 spools of thread, which are held in by elastic. This rack is attached to the box cover with a cord, and rises automatically when the box is opened.
PopularScience_19420601_0140_006_0118.xml
article
HW34
HW34,HW35
Home and Workshop
[no value]
First-Aid FURNITURE
[no value]
[no value]
[no value]
[no value]
EFFICIENT and inexpensive furniture for first-aid medical use is a need coming more and more to the attention of local defense councils. Designs for the first-aid cot, table, chair, and adjustable crutch described here were perfected by John McCormack, state supervisor of arts and crafts for the New Jersey WPA, and the pieces are being turned out in quantity by handicapped workers in the WPA’s toymending and repair project at Newark under the supervision of State Administrator Robert W. Allan.
PopularScience_19420601_0140_006_0119.xml
article
HW36
HW36
Craftwork
Striding Waiter Sets the Pace on This
Kitchen Napkin Holder
[no value]
[no value]
[no value]
JUAN OLIVER
IT IS hard to find things in a drawer in which loose paper napkins are kept. This bright kitchen box provides a place for them and strikes an amusing note besides. Although the figure displays an interesting three-dimensional effect, it is a simple scroll-saw job and requires no carving.
PopularScience_19420601_0140_006_0120.xml
article
HW37
HW37
New Shop Ideas
[no value]
Lathe Tailstock Support Holds Centerless Armature Shafts
[no value]
[no value]
[no value]
JOHN A. BATES
ARMATURES that have long, slender shafts with no centers can be mounted in the lathe for truing their commutators with the aid of a tailstock support of the type shown. This is turned from steel 1⅝" in diameter and 4⅜" long. A hole ⅞" in diameter is bored 1" deep in the large end to receive a brass bushing into which the armature shaft fits.
PopularScience_19420601_0140_006_0121.xml
article
HW37
HW37
New Shop Ideas
[no value]
Contrasting Paint on Ladder Marks Its Carrying Point
[no value]
[no value]
[no value]
ALBERT J. MCELFRESH
IN MANY types of repair, painting, and construction work, it is necessary for workmen to carry short ladders from place to place. It is important to pick up such a ladder at the point of balance, otherwise time is lost by having to stop to shift it on the shoulder.
PopularScience_19420601_0140_006_0122.xml
article
HW37
HW37
Shop Data
[no value]
WHITWORTH AND METRIC THREADS
[no value]
[no value]
[no value]
[no value]
The Whitworth thread is standard in the British Isles for nearly all types of threads, the smaller sizes being designated as British Standard Fine. Whitworth threads are cut in much the same manner as Acme threads, with two major differences: the thread angle is smaller, and the radii at the top and bottom of the thread must be cut accurately with a formed tool.
PopularScience_19420601_0140_006_0123.xml
article
HW38
HW38,HW39
New Shop Ideas
[no value]
Acetylene Brazing Torch
REQUIRES NO OXYGEN
[no value]
[no value]
[no value]
SOME of the uses you’ll find for the acetylene-burning torch illustrated in Fig. 1 are melting aluminum and other metals, heating work that is to be bent, hardened, or tempered, and doing heavy soldering or light brazing. A small tank of acetylene gas will last the average home shop or small repair shop many months.
PopularScience_19420601_0140_006_0124.xml
article
HW40
HW40,HW41,HW42
Home and Workshop
[no value]
HOMEMADE Stirrup Pump FOR FIGHTING INCENDIARY BOMBS
POINTERS ON FIGHTING FIRE BOMBS
[no value]
[no value]
Benjamin Nielsen
WITNESSES of England’s trial by fire agree that the humble “stirrup pump” used in that country to fight incendiary bombs has saved London. This portable hand-powered pump can be set into an ordinary bucket and switched from an empty to a full one almost instantly.
PopularScience_19420601_0140_006_0125.xml
article
HW43
HW43
Woodworking
[no value]
Collapsible Typewriter Table
FORMS CARRYING CASE
[no value]
[no value]
[no value]
FOR field use of a standard large-size typewriter in connection with his military duties, Corporal Harry B. Young, of the 30th Field Artillery, U. S. Army, devised the combination case and table illustrated, which will serve as well for civilians on trips to the shore, country, or mountains.
PopularScience_19420601_0140_006_0126.xml
article
HW44
HW44,HW45
Miscellaneous
[no value]
KEEPING THE HOME SHIPSHAPE
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0127.xml
article
HW46
HW46,HW47
Craftwork
[no value]
MODEL-RAILWAY NOTES: Interlocking Signals
[no value]
[no value]
[no value]
DAVID MARSHALL
WHERE two or more tracks cross, we have a problem in model-railway signaling—and one of the most fascinating in the whole field of signal engineering. Here, too, we are face to face with the subject of interlocking, which is simply a way of arranging signals so that a single flow of electricity will do many things instead of just one.
PopularScience_19420601_0140_006_0128.xml
article
HW48
HW48
Craftwork
[no value]
Mats Made of Dowels Strike a Modern Decorative Note
[no value]
[no value]
[no value]
J. O.
You can easily make distinctive luncheon place mats, hot-plate holders, and similar articles from ordinary dowels. Mats of this type give a novel modern effect under potted plants and flower bowls. A large one made of ½" dowels can be carried rolled up to picnics or beach parties.
PopularScience_19420601_0140_006_0129.xml
article
HW48
HW48
Craftwork
[no value]
Drinking Straws and Cookies Form Banjo Party Favors
[no value]
[no value]
[no value]
B. N.
CHILDREN—and grownups too—will exclaim over these banjo party favors. Wrap two or three large cookies in clear cellulose film and apply decorative tape around the edge. Bright-colored drinking straws to match are then attached. Two pieces of tape near the end, one on top and one beneath, keep the straws aligned.
PopularScience_19420601_0140_006_0130.xml
article
HW48
HW48
Shop Data
[no value]
SETTING SNAP BUTTONS
[no value]
[no value]
[no value]
[no value]
To attach a snap button to leather, set the eyelet first. Locate the proper point for the eyelet and punch the correct size hole. Then place the eyelet over the anvil, A in the drawing, the leather over the eyelet, and the cap over both. Put the concave part of the special hammer, B, over the cap and eyelet, and strike sharply with a mallet, being careful not to use too much force, for that would cut the leather.
PopularScience_19420601_0140_006_0131.xml
article
WH49
WH49
Mescellaneous
[no value]
NEW APPLIANCES to aid in Housekeeping
STEAM-PRESS IRONING CLOTH
TRAVELERS' COMPACT SUN LAMP
GLASS MATS FOR HOT PLATES
[no value]
[no value]
[no value]
Built into a case small enough to slip into the pocket of an overcoat, this miniature sun lamp is designed especially for those who do much traveling. Businessmen who like to take daily health-ray treatments while on trips will find that it occupies little room in a brief case or in the corner of a suitcase.
PopularScience_19420601_0140_006_0132.xml
article
HW50
HW50,HW51
Home and Workshop
[no value]
Grinding DO'S AND DON'TS
DO
DON'T
[no value]
[no value]
[no value]
WHEN Sam Sloppy forces a grinding wheel on an arbor too big for it, slips on a few assorted washers, clamps all tight with a 12" wrench, and steps up the speed of the wheel to make it grind faster, he’s asking for an obituary. Playing nip and tuck with the fragments of a breaking wheel is highly dangerous; such particles may travel at speeds of a mile a minute and more.
PopularScience_19420601_0140_006_0133.xml
article
HW52
HW52,HW53,HW54
Craftwork
[no value]
Test Flying MODEL AIRPLANES
[no value]
[no value]
[no value]
Frank Zaic
MANY a model-airplane builder hopefully takes his creation on the field, winds it enthusiastically to the full, ets it go—and just a few seconds later has a splintered handful of balsa and tissue instead of a ship. Yet, provided that the model was well made and sufficiently powered, the disaster was probably avoidable.
PopularScience_19420601_0140_006_0134.xml
article
HW55
HW55
Home Building
[no value]
Ironing Board CLAMPS FIRMLY TO TABLE OR CABINET
[no value]
[no value]
[no value]
EDWARD T. DAHLIN
RIGIDITY, which is essential in an ironing board, is assured by the design of the homemade board illustrated. It clamps automatically to the top of a table or cabinet by dropping the hinged legs. Half of the board is free for use without interference of braces.
PopularScience_19420601_0140_006_0135.xml
article
HW56
HW56
Home and Workshop
[no value]
Vest-Pocket Receiver
[no value]
[no value]
[no value]
[no value]
BUILT into a simulated-leather playingcard case, this one-tube receiver is powerful enough to get distant stations. The tube is the new all-glass 45-volt miniature diode pentode (1S5) with the unused diode portion grounded directly to the chassis or “A” minus. A “vest pocket” 45volt “B” battery should last three or four months and an ordinary flashlight “A” battery will give several hours of use.
PopularScience_19420601_0140_006_0136.xml
article
HW57
HW57
Radio
INEXPENSIVE, EASY-TO-MAKE
CODE PRACTICING SET
[no value]
[no value]
[no value]
[no value]
FOR men and women in civilian defense units learning telegraph code, here is a practice set which can be made at home. The unit is a simple oscillator, not a buzzer set, which uses neither audio transformers, batteries, nor tubes. It will operate on AC or DC at 25 to 60 cycles, 85 to 150 volts.
PopularScience_19420601_0140_006_0137.xml
article
HW58
HW58
[no value]
[no value]
Servicing Your Radio—PART 3
[no value]
[no value]
[no value]
[no value]
IF YOU HAVE an old radio set whose reception is not up to 1942 standards, you can modernize it yourself. The receiver illustrated here was one of the first AC-DC radios to use a plastic cabinet, and had no line-cord resistor, no 25Z5 or similar-type rectifier, and had a magnetic speaker.
PopularScience_19420601_0140_006_0138.xml
article
HW59
HW59
Radio
[no value]
AUTOMATIC SOLDERING-IRON STAND
HOME-CONSTRUCTED DEVICE LENGTHENS LIFE OF TOOL
[no value]
[no value]
[no value]
USE of this homemade automatic soldering-iron stand will lengthen the life of any electric soldering iron. By placing the iron on the stand, a resistor is automatically brought into the circuit, reducing the heat of the iron but keeping it warm enough so that when lifted off the stand it almost instantly becomes hot again.
PopularScience_19420601_0140_006_0139.xml
article
HW60
HW60,HW61,HW62
Home and Workshop
[no value]
FUN WITH COLLOIDS
TINY PARTICLES OF MATTER THAT CAN’T BE SEEN
[no value]
[no value]
[no value]
NEVER met a colloid? Then you have never eaten a piece of bread, washed your hands with soap, mixed paint, nor performed any of the thousand everyday things that bring you face to face with a fascinating branch of chemistry. More than 80 years ago, Thomas Graham, a British chemist, discovered that many chemical substances fell into two classifications: those which, dissolved in water, would pass readily through an animal membrane, and those which would not.
PopularScience_19420601_0140_006_0140.xml
article
HW63
HW63,HW64
Electrical
[no value]
SCIENCE TUNTS TESTS WITH ELECTRICITY
[no value]
[no value]
[no value]
[no value]
ENTERTAINING experiments with electricity and magnetism may be performed with apparatus as simple as a coil of bell or magnet wire, a pocket compass, a few dry cells, and a bell-ringing transformer—or the one that runs Junior’s electric train.
PopularScience_19420601_0140_006_0141.xml
advertisement
209
209
[no value]
[no value]
Eastman Kodak Company
[no value]
Eastman Kodak Company
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0142.xml
advertisement
210
210
[no value]
[no value]
NICHOLSON FILE CO.
[no value]
NICHOLSON FILE CO.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0143.xml
advertisement
211
211
[no value]
[no value]
Advertisement: POPULAR SCIENCE ON-THE-SCREEN
[no value]
[no value]
POPULAR SCIENCE ON-THE-SCREEN
[no value]
[no value]
PopularScience_19420601_0140_006_0144.xml
advertisement
212
212
[no value]
[no value]
HASTINGS MANUFACTURING CO.
[no value]
HASTINGS MANUFACTURING CO.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0145.xml
advertisement
213
213
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0146.xml
advertisement
214
214
[no value]
[no value]
North Bros. Mfg. Co.: "YANKEE" TOOLS
[no value]
North Bros. Mfg. Co.
"YANKEE" TOOLS
[no value]
[no value]
PopularScience_19420601_0140_006_0147.xml
advertisement
214
214
[no value]
[no value]
Paramount Products Co.
[no value]
Paramount Products Co.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0148.xml
advertisement
214
214
[no value]
[no value]
ALBERT CONSTANTINE & SON, INC.
[no value]
ALBERT CONSTANTINE & SON, INC.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0149.xml
advertisement
214
214
[no value]
[no value]
STOEGER ARMS CORP.
[no value]
STOEGER ARMS CORP.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0150.xml
advertisement
215
215
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0151.xml
advertisement
216
216
[no value]
[no value]
MEDUSA PRODUCTS COMPANY
[no value]
MEDUSA PRODUCTS COMPANY
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0152.xml
advertisement
216
216
[no value]
[no value]
BARRON TOOL CO.: STEEL TOP AUXILIARY DRILL PRESS TABLE
[no value]
BARRON TOOL CO.
STEEL TOP AUXILIARY DRILL PRESS TABLE
[no value]
[no value]
PopularScience_19420601_0140_006_0153.xml
advertisement
216
216
[no value]
[no value]
FOLEY MFG CO.
[no value]
FOLEY MFG CO.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0154.xml
advertisement
217
217
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19420601_0140_006_0155.xml
advertisement
217
217
[no value]
[no value]
Advertisement: POPULAR SCIENCE MONTHLY
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
PopularScience_19420601_0140_006_0156.xml
advertisement
218
218
[no value]
[no value]
KEUFFEL & ESSER CO.: STEEL MEASURING TAPES
[no value]
KEUFFEL & ESSER CO.
STEEL MEASURING TAPES
[no value]
[no value]
PopularScience_19420601_0140_006_0157.xml
advertisement
218
218
[no value]
[no value]
THE PATENT CEREALS CO.
[no value]
THE PATENT CEREALS CO.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0158.xml
advertisement
218
218
[no value]
[no value]
DREMEL MFG CO.: MOTO-SAW
[no value]
DREMEL MFG CO.
MOTO-SAW
[no value]
[no value]
PopularScience_19420601_0140_006_0159.xml
advertisement
218
218
[no value]
[no value]
HARLEY-DAVIDSON MOTOR CO.
[no value]
HARLEY-DAVIDSON MOTOR CO.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0160.xml
article
219
219
[no value]
[no value]
Rural Fire Truck Draws Water from Garden Hydrants
Invisible Poster Stickers
[no value]
[no value]
[no value]
IN A DISTRICT where there are no fire hydrants, a suburban or rural fire department often has to drive a long way to refill the tank truck when it becomes empty. This can sometimes be avoided by drawing water from nearby garden hydrants through a homemade manifold of the type illustrated.
PopularScience_19420601_0140_006_0161.xml
advertisement
219
219
[no value]
[no value]
Smooth-On Manufacturing Co.
[no value]
Smooth-On Manufacturing Co.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0162.xml
advertisement
220
220
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0163.xml
article
220
220,222
With the Inventors
[no value]
With the Inventors
[no value]
[no value]
[no value]
[no value]
A HAND-PROPELLED “outboard motor” for rowboats, designed by John E. Bevington of Cleveland, Ohio, enables a fisherman to stalk his game without noise or vibration. Turning a crank transmits power through a flexible shaft to a small propeller, slowly and silently maneuvering the craft either forward or backward.
PopularScience_19420601_0140_006_0164.xml
advertisement
221
221
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0165.xml
advertisement
223
223
[no value]
[no value]
DYNAMIC WELDER CO.
[no value]
DYNAMIC WELDER CO.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0166.xml
advertisement
224
224
[no value]
[no value]
SOUTH BEND LATHE WORKS
[no value]
SOUTH BEND LATHE WORKS
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0167.xml
advertisement
225
225
[no value]
[no value]
Wm. H. Wise & Co., Inc.
[no value]
Wm. H. Wise & Co., Inc.
[no value]
[no value]
[no value]
PopularScience_19420601_0140_006_0168.xml
advertisement
226
226
[no value]
[no value]
LIGGETT & MYERS TOBACCO Co.: Chesterfields
[no value]
LIGGETT & MYERS TOBACCO Co.
Chesterfields
[no value]
[no value]
PopularScience_19420601_0140_006_0169.xml