Issue: 19460401

Monday, April 1, 1946
APR. 1946
4
True
148
Tuesday, January 13, 2015

Articles
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POPULAR SCIENCE
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PopularScience_19460401_0148_004_0001.xml
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Advertisement
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PopularScience_19460401_0148_004_0002.xml
masthead
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POPULAR SCIENCE
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PopularScience_19460401_0148_004_0003.xml
tableOfContents
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2,4
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tableOfContents
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PopularScience_19460401_0148_004_0004.xml
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3
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Advertisement
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PopularScience_19460401_0148_004_0005.xml
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4
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Advertisement
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PopularScience_19460401_0148_004_0006.xml
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Advertisement
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PopularScience_19460401_0148_004_0007.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_19460401_0148_004_0008.xml
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6
6
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RADIO CORPORATION of AMERICA
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RADIO CORPORATION of AMERICA
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PopularScience_19460401_0148_004_0009.xml
article
7
7
VOICE OF SCIENCE
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ARE WE Mathematically Illiterate?
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PERRY GITHENS
MEET Dr. Eckert. He is standing in front of the set-up switches of the Eniac— the light-quick electronic calculator he helped to invent. He is holding an abacus— the primitive counting machine. Most of us know the abacus as a children’s toy.
PopularScience_19460401_0148_004_0010.xml
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8
8
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THE GATEWAY BOOK CO.
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THE GATEWAY BOOK CO.
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PopularScience_19460401_0148_004_0011.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_19460401_0148_004_0012.xml
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10
10
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HOBBY BOOK MART
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HOBBY BOOK MART
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PopularScience_19460401_0148_004_0013.xml
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10
10
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Advertisement
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PopularScience_19460401_0148_004_0014.xml
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10
10
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KNICKERBOCKER PUB. CO.
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KNICKERBOCKER PUB. CO.
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PopularScience_19460401_0148_004_0015.xml
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11
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Advertisement
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PopularScience_19460401_0148_004_0016.xml
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12
12
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The Rosicrucians (AMORC)
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The Rosicrucians (AMORC)
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PopularScience_19460401_0148_004_0017.xml
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13
13
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CHARLES ATLAS
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CHARLES ATLAS
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PopularScience_19460401_0148_004_0018.xml
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14
14,15
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CLARENCE A. O'BRIEN & HARVEY B. JACOBSON
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CLARENCE A. O'BRIEN & HARVEY B. JACOBSON
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PopularScience_19460401_0148_004_0019.xml
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16
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PYROIL COMPANY: Pyroil
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PYROIL COMPANY
Pyroil
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PopularScience_19460401_0148_004_0020.xml
article
16
16,18
LETTERS
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LETTERS
Amen!
Home-Made Aircraft
Science Before Guns?
DDT Don'ts
Frog Feet
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Sir: The reserve for the Navy and the nation in any future emergency must be drawn from scientific and technical personnel. The advent of weapons of destruction that can be manned by few people, pilotless planes carrying deadly charges, bacterial warfare; in fact, the countless horrors of a possible future war point clearly to the need of a scientific reserve rather than a lot of foot soldiers who may never get a chance to come to grips with the enemy . . .
PopularScience_19460401_0148_004_0021.xml
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17
17
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McMORROW, BERMAN & DAVIDSON
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McMORROW, BERMAN & DAVIDSON
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PopularScience_19460401_0148_004_0022.xml
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18
18
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ALLIED RADIO CORP.
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ALLIED RADIO CORP.
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PopularScience_19460401_0148_004_0023.xml
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19
19
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THEO. AUDEL& CO.
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THEO. AUDEL& CO.
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PopularScience_19460401_0148_004_0024.xml
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20
20
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INTERSTATE TRAINING SERVICE
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INTERSTATE TRAINING SERVICE
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PopularScience_19460401_0148_004_0025.xml
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20
20
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G. & C. Merriam Co.
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G. & C. Merriam Co.
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PopularScience_19460401_0148_004_0026.xml
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20
20
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American School
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American School
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PopularScience_19460401_0148_004_0027.xml
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21
21
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SPRAYBERRY ACADEMY OF RADIO
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SPRAYBERRY ACADEMY OF RADIO
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PopularScience_19460401_0148_004_0028.xml
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22
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Advertisements
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PopularScience_19460401_0148_004_0029.xml
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23
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DeFOREST’S TRAINING, INC
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DeFOREST’S TRAINING, INC
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PopularScience_19460401_0148_004_0030.xml
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24
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Advertisements
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PopularScience_19460401_0148_004_0031.xml
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25
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Advertisement
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PopularScience_19460401_0148_004_0032.xml
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25
25
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19460401_0148_004_0033.xml
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PopularScience_19460401_0148_004_0034.xml
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27
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MoToR Book
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MoToR Book
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PopularScience_19460401_0148_004_0035.xml
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28
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PopularScience_19460401_0148_004_0036.xml
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COYNE ELECTRICAL SCHOOL
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COYNE ELECTRICAL SCHOOL
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PopularScience_19460401_0148_004_0037.xml
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30
30
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PopularScience_19460401_0148_004_0038.xml
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31
31
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NATIONAL SCHOOLS
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NATIONAL SCHOOLS
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PopularScience_19460401_0148_004_0039.xml
article
32
32
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SO IT NEEDS FIXING
the “Fix-it Man”
What to Charge?
The Future Offers
If You Are Ambitious
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S. T. CHRISTENSEN
"WELL, I guess I’m the fellow to see, for I’ve repaired thousands of refrigerators (home and commercial both), vacuum cleaners, radios, washing machines, irons, fans, lamps, mangles, motors, etc. In fact, many of my customers call me their “electrical appliance doctor.
PopularScience_19460401_0148_004_0040.xml
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33
33
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CHRISTY SUPPLY CO.
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CHRISTY SUPPLY CO.
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PopularScience_19460401_0148_004_0041.xml
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34
34
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Advertisements
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PopularScience_19460401_0148_004_0042.xml
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35
35
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Plastics Industries Technical Institute
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Plastics Industries Technical Institute
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PopularScience_19460401_0148_004_0043.xml
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36
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Advertisements
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PopularScience_19460401_0148_004_0044.xml
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37
37
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Northrop Aeronautical Institute
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Northrop Aeronautical Institute
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PopularScience_19460401_0148_004_0045.xml
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38
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PopularScience_19460401_0148_004_0046.xml
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39
39
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PLASTICS TECH
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PLASTICS TECH
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PopularScience_19460401_0148_004_0047.xml
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39
39
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AMERICAN SCHOOL
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AMERICAN SCHOOL
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PopularScience_19460401_0148_004_0048.xml
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40
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PopularScience_19460401_0148_004_0050.xml
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PopularScience_19460401_0148_004_0051.xml
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43
43
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U. S. School of Music
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U. S. School of Music
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PopularScience_19460401_0148_004_0052.xml
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43
43
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RANDOLPH & BEAVERS
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RANDOLPH & BEAVERS
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PopularScience_19460401_0148_004_0053.xml
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43
43
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CAL - AERO TECHNICAL INSTITUTE
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CAL - AERO TECHNICAL INSTITUTE
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PopularScience_19460401_0148_004_0054.xml
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44
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Advertisements
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STARK"S
AMMUNITION BOX
STARK"S
SADDLE BAGS
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PopularScience_19460401_0148_004_0055.xml
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45
45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62
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Classified Opportunities
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PopularScience_19460401_0148_004_0056.xml
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63
63
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GENERAL SALES SUPPLY: BANDMASTER
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GENERAL SALES SUPPLY
BANDMASTER
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PopularScience_19460401_0148_004_0057.xml
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63
63
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Advertisement: FALCON CANDID TYPE CAMERA
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FALCON CANDID TYPE CAMERA
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PopularScience_19460401_0148_004_0058.xml
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64
64
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Aeronca Aircraft Corporation
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Aeronca Aircraft Corporation
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PopularScience_19460401_0148_004_0059.xml
article
65
65
SCIENCE AT WORK
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MONSTER MECHANICAL HEN LAYS WHOLE HOUSE AT ONCE
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The Tournalayer, latest product of R. G. Le Tourneau, the big earthmoving man, can produce four-room concrete houses by the dozen. Squatting on a steel-mesh inside form, it pours concrete to make walls with doors and windows. Flat roofs are laid like pavement.
PopularScience_19460401_0148_004_0060.xml
article
66
66,67,68,69,70,71
PSM FEATURES
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HOW TO DRIVE and STAY ALIVE
As a public service, permission is granted to all newspapers, magazines, house organs, radio stations, automotive and insurance companies, to quote or reprint any or all material in pages 66 through 75, with or without credit to Popular Science Monthly.
COMMONEST ACCIDENT PATTERNS
How Far Ahead of You Is Your Car?
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DEVON FRANCIS
BEFORE you finish this article one person will be killed and some 40 will be injured in automobile and truck accidents in the United States. This is the average of traffic casualties every 15 minutes, day and night, winter and summer. Actually, deaths on U. S. streets and highways between Pearl Harbor and V-J Day were more than a third of the total U. S. combat deaths in World War II.
PopularScience_19460401_0148_004_0061.xml
article
70
70,71,72
PSM FEATURES
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TEST YOURSELF FOR SAFE DRIVING
FOUR MO RE PAGES OF TESTS
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HANDICAPPED persons are often the safest drivers, because they know their weaknesses and make up for them. You can do the same. With these simple, homemade tests you can get a line on your physical condition, driving knowledge and judgment.
PopularScience_19460401_0148_004_0062.xml
article
73
73,74
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DO YOU KNOW ENOUGH ABOUT DRIVING?
WcUcli rLfauSi ßlaad ßnedAa/ie.!
ANSWERS
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THIS Driver Information Test is condensed from one prepared by the Office of the Quartermaster General, United States Army. Read each question or statement carefully, then mark the one suggestion that you think is right. Answers are on page 74.
PopularScience_19460401_0148_004_0063.xml
article
74
74
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IS YOUR JUDGMENT GOOD ENOUGH?
Shill
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1You are driving over a slight rise. A light, wet snow has fallen. As you top the rise you see that a car has skidded and is partially blocking the road at the foot of the hill. You jam on the brake and find yourself sliding down the hill and turning sideways.
PopularScience_19460401_0148_004_0064.xml
article
75
75
PSM FEATURES
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CHECK YOUR CAR FOR SAFE DRIVING
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THE best driver in the world is in danger in a defective car. And today, with most automobiles at least five years old, there are more defective cars on the highways than ever before. Check these vital points to see if your car is in need of repair.
PopularScience_19460401_0148_004_0065.xml
article
76
76
SCIENCE AT WORK
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Packaged Utilities
cut home costs
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UNIQUE American industrial ability to package its products is giving the vital new housing program a shot in the arm. Coupled with a prefabricated house, the Ingersoll Home Utility Unit should help simplify the job of providing homes for 3,500,000 families by year-end (PSM, Mar. ’46, p. 66).
PopularScience_19460401_0148_004_0066.xml
article
77
77,78,79,80,81
SCIENCE NEWS
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NAVY at the CROSSROADS
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LEON SHLOSS THE atom-bomb-against-warship tests beginning next month will determine whether sea power is obsolete. “Operation Crossroads,” prophetic designation for the experiments during which the world’s fourth, fifth, and sixth atom-bomb explosions will take place, may “pipe down” the Navy.
PopularScience_19460401_0148_004_0067.xml
article
82
82
SCIENCE NEWS
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plans to go HIGHER and DEEPER
New Planes, Submarines to Be Fleet's Backbone.
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IF THE atom bomb, incipient weapon of nuclear science, smashes the Bikini target ships themselves into atoms during “Operation Crossroads,” what lies beyond those crossroads for the American Navy? Many members of the Navy’s High Command concede that surface warships are doomed.
PopularScience_19460401_0148_004_0068.xml
article
83
83,84,85,86
SCIENCE NEWS
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Lightning Strikes Mathematics
EQUATIONS THAT SPELL PROGRESS ARE SOLVED BY ELECTRONICS
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ALLEN ROSE
SOME day, travelers may step out of a plane in San Francisco 10 minutes, by local clocks, before they left New York. That day has been brought closer by the work of two brilliant young engineers at the Moore Electrical Engineering School, University of Pennsylvania.
PopularScience_19460401_0148_004_0069.xml
article
87
87
PSM FEATURES
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METAL TOYS are here again
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PARENTS of toy-age children will welcome back the sturdy metal playthings for which wartime toys were a poor substitute. Boy-proof tricycles, of new design and material, are coming; and improved models of play sewing machines and steam engines.
PopularScience_19460401_0148_004_0070.xml
article
88
88,89,90,91
SCIENCE NEWS
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"BABY EARTHQUAKES" to SPOT STORMS
New waves found in atom blast help map under ground, locate oil, check vibration in machinery.
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ALDEN P. ARMAGNAC
EARTHQUAKES of a newly discovered kind can be put to work. They can be given such jobs as warning ships of hurricanes, tracing unwanted vibrations in machinery, locating oil, and mapping underground bedrock for building foundations.
PopularScience_19460401_0148_004_0071.xml
article
92
92
AVIATION
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Drive Right Up
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A FLYING automobile with a 130-hp. Franklin engine cruises at 110 m.p.h. in the air and travels 60 m.p.h. on the road. Those speeds were set by the first model of a design by Ted Hall, aviation engineer. Portable Products Corp., Garland, Tex., is considering the possibilities of producing it.
PopularScience_19460401_0148_004_0072.xml
article
93
93,94,95,96
SCIENCE AT WORK
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Fighting Floods With Models
LESSONS LEARNED ON THE RHINE WILL HELP TAME U. S. RIVERS
ABOUT THE PAPER In Popular Science Monthly
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LT. COL. STANLEY W. DZIUBAN
BECAUSE they had learned how to control rampaging rivers in a laboratory at Vicksburg, Miss., U. S. Army engineers were able to tell where, when and how Allied troops should cross the Rhine. And what they learned in Europe about how to handle millions of gallons of flood waters will help tame the Mississippi, Missouri, Ohio, Connecticut and other American rivers.
PopularScience_19460401_0148_004_0073.xml
article
97
97
AVIATION
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Your Pin-Up LOCKHEED P2V NEPTUNE
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PopularScience_19460401_0148_004_0074.xml
article
98
98
INVENTIONS
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I"D LIKE TO SEE THEM MAKE...
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Puncture-alarm for automobile tires. Tubes would be designed so that a leak would cause a whistle to blow. Mrs. A. G. Hellstern, Hinsdale, Mont., originator of the idea, thinks such a device would guard against accidents. Fire-hose reel equipment for small houses or apartments.
PopularScience_19460401_0148_004_0075.xml
article
99
99,100,101
PSM FEATURES
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OIL PAINTINGS
Famous Artists Portray Petroleum Industry
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NO COMMUNIQUES were issued on the effort of the petroleum industry that boosted production 38 percent to provide three fourths of United Nations oil in World War II, but prominent American artists have captured the drama in oil paintings.
PopularScience_19460401_0148_004_0076.xml
article
102
102,103
PSM FEATURES
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How Navy’s New Tricks Concealed Ships
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PopularScience_19460401_0148_004_0077.xml
article
104
104
AVIATION
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Short-Hop Helicopter
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ROTORCYCLE is what the AAF dubbed this Firestone G. & A. helicopter because it was first built to act as a substitute for the motorcycle. It weighs only 1,800 pounds with a full load. Speed is over 100 m.p.h., estimated ceiling above 10,000 feet, and range about 250 miles or three hours.
PopularScience_19460401_0148_004_0078.xml
article
104
104,105
SCIENCE AT WORK
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Fog Shields Fireman
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HIGH-PRESSURE fog puts out this airplane fire in 30 seconds as fireman advances behind a vertical fan spray. The millions of droplets have a heat absorption 35 times that of water from a fire hose. Power take-off from a truck engine maintains the necessary high pressure.
PopularScience_19460401_0148_004_0079.xml
article
105
105
PSM FEATURES
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Judging Begins in GI Craftwork Contest
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THE deadline for entries in Popular Science Monthly's $3,300 GI Handicraft Contest has passed, and the board of judges has started its work. Only entries postmarked prior to 6 p.m., Monday, April 1, can now be accepted. In addition to Frances Langford, fea tured above, the judges include Brig. Gen. Georges F. Doriot, Army Service Forces; Maj. Nathaniel Saltonstall, Chief of the Handicraft Branch of ASF; Rear Adm. Harold B. Miller, Director of Navy Public Relations; Maj. Walter W. Hitea man, Jr., and Sgt. Merle D. Miller, service publication editors, and Mrs. Cass Canfield, noted sculptress.
PopularScience_19460401_0148_004_0080.xml
article
106
106,107
INVENTIONS
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NEW IDEAS FROM THE INVENTORS
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A TELEVISION ANTENNA that can be used also as a sprinkler for cooling a building in hot weather and for fire and lightning prevention has been patented by Edward J. Cowan, of Springdale, Conn. The antenna, made of one-inch brass or copper tubing, has tiny holes on either side through which water can be sprayed.
PopularScience_19460401_0148_004_0081.xml
article
108
108,109,110
AVIATION
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SUPERLINERS FOR WORLD SKYWAYS
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NEW commercial transport planes, shrinking the United States to 1/200 the size of a century ago in terms of time, are incorporating a brand-new concept of comfort for the passenger. When airliners began operations in the late 1920s, the mechanics of operation were a primary consideration with designer and air-carrier companies.
PopularScience_19460401_0148_004_0082.xml
review
111
111
NEW TOOLS
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NEW TOOLS
Portable Saw-Gun Has Streamlined Housing
Automatic-Feed Soldering Iron Ejects Fixed Amount of Solder
Lightning-Quick Grip Assured on Screwless Vise
Ratcheting, Open-End Wrench Has Compound Leverage
The Mid-States Equipment Corp.
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The Mid-States Equipment Corp.
Saw-Gun
A TUBULAR, ribbed handgrip features the improved, streamlined housing of the Saw-Gun, a portable power saw and file that is also equipped with a pistol-grip, detachable handle. An ordinary hack-saw blade or file fits into the holder. The Mid-States Equipment Corp.,of Chicago, is the manufacturer.
The Mid-States Equipment Corp.
automatic-feed, electric soldering iron
AN automatic-feed, electric soldering iron, the Eject-O-Matic (below), is triggeroperated and deposits a measured amount of solder from a reel in the bakelite handle. Excessive heat is dissipated by the nine graduated cooling vanes. Manufacturer is Multi-Products Tool Co., Newark, N. J.
The Mid-States Equipment Corp.
Grip-Master
A PUSH or pull on the knob and an easy press on the lever lock work in place on the recessed parallels of the Grip-Master, a revolutionary screwless vise, put out by National Machine Tool Co., Racine, Wis.
The Mid-States Equipment Corp.
open-end wrench
THE compound-leverage characteristic and the notched jaws of the ratcheting, open-end wrench at the left give the tool a sure grip on any shaped nut. The fact that it ratchets makes it unnecessary to remove the wrench until the tightening or loosening job is finished. The absence of the spanner-type upper jaw permits the slender tool, which was designed by George Logan, of New Hope, Pa., to get succeeding grips on a nut that is fixed in close quarters.
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PopularScience_19460401_0148_004_0083.xml
article
112
112
AVIATION
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GLIDER has reserve POWER
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PopularScience_19460401_0148_004_0084.xml
article
113
113,114,115
PSM FEATURES
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Fun UNDER WATER
Way gear of "Frog Men" will create new sport, save lives
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HARRY SHERSHOW
OUT of the wealth of atom bombs, flame throwers, booby traps, and other World War II inventions, have come some devices that promise to survive and become indispensable in peace. Among them are oxygen-charged respiratory units, perfected for the Army and Navy for underwater offensives against the enemy.
PopularScience_19460401_0148_004_0085.xml
article
116
116
PHOTOGRAPHY
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COLOR PRINTING the yard
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A NEW assembly-line technique is turning out as many as 300 prints an hour from Kodachrome and Ansco transparencies, providing seven-day service to the growing army of color photographers. The speedy apparatus that makes this possible has recently been put to work by Pavelle Color, Inc., at its plant in New York City.
PopularScience_19460401_0148_004_0086.xml
article
117
117,118,119
PSM FEATURES
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Red, White and GOLD Children of Weeds
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FLOWER experts call them “mums.” They are the elegant hybridized grandchildren of rank, weedy plants closely related to the daisy. Hundreds of varieties of these chrysanthemums have been developed, ranging from vest-button-sized pompons to blossoms the size of a hat.
PopularScience_19460401_0148_004_0087.xml
article
120
120
PSM FEATURES
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GADGETRY GOES WILD
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in this convertible coupe of John Towber’s. He has radiorepair equipment behind the seats, as shown in the photo at left. That’s for business, since Towber runs a radio shop in Coatesville, Pa. The front of the éàr is given to pleasure—on the dash are running water, air conditioning, a movie screen, and a phonograph with automatic record changing. On the left-front fender is an electriceye headlight dimmer. But turn to page 141 for the story of this super-accessoried car.
PopularScience_19460401_0148_004_0088.xml
article
120
120
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DECORATED HOPE CHEST.
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This example of Pennsylvania Dutch workmanship, ornamented with colorful designs, is in keeping with the spirit of the early German settlers who delighted in painted embellishments. How to make the chest is shown on page 152.
PopularScience_19460401_0148_004_0089.xml
article
120
120
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EVER WANT A STEAM TUG?
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EVER WANT A STEAM TUG? Here’s one in model size that runs under its own power. With a balsa hull, oilcan boiler, and homemade oscillating engine, it is built,.as described on page 154, with a minimum of tools.
PopularScience_19460401_0148_004_0090.xml
article
121
121,122,123
SCIENCE NEWS
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TANTALUM Goes to Work
Rare metal improves radio tubes; mends broken bones.
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FEW people may ever have heard of tantalum—a rare metal seven times as and tool alloys. Brazil’s entire production, more than half of the world’s, was being flown to the U. S.; a WPB order, M-156, forbade shipping more than one ounce of the strategic metal to any customer without an allocating order.
PopularScience_19460401_0148_004_0091.xml
article
124
124
SCIENCE AT WORK
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Opening Oysters the Easy Way
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THE experts can open oysters by the bushel with a twist of the wrist and a flick of the strong, two-edged oyster knife. Now comes a scientific trick that enables even a fresh-water farmer to open the toughest oyster without bruising a knuckle or shucking a curse.
PopularScience_19460401_0148_004_0092.xml
article
125
125
AUTOMOBILES
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FOUR Wheel STEER
Circus Jeep Gose Sideways to Wriggle Through Traffic and Trees.
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THOUGH it was built to perform in a circus, a trick jeep that can move sideways and turn around in its own length has practical uses as well. Equipped with a front axle both in back and in front, the Army car of all work was made over for its starring role by the Berg Truck & Parts Co., of Chicago.
PopularScience_19460401_0148_004_0093.xml
article
126
126,127
AVIATION
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WHAT'S NEW IN AVIATION
Republic XF-12 Heralds New Era in Global Transportation
Flying Showroom Tours Latin America
Portable Is Three-Way Radio
Power-for-Weight Champion
Hangar Made of Metal Tubes Features Removable Wall
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THE long secret Republic XF-12 (PSM, March ’46, p. 94) in test flights has proved itself the fastest long-range, four-engine transport-type airplane in the world. The Air Technical Service Command has released partial performance figures, stating that the sky giant will operate at a speed over 450 m.p.h., with a service ceiling above 44,000 feet, and an expected range of 4,500 miles.
PopularScience_19460401_0148_004_0094.xml
article
128
128,129
PSM FEATURES
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"EXERCISE MUSKOX"
Explores Arctic Canada
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FOUR dozen men of the Canadian Army are now rolling across the frozen, windashed wastelands of the Far North in snowmobiles, on a three-month, 3,100-mile journey of exploration called “Exercise Muskox.” Their mission is to obtain new information about vast regions of their country that lie mostly within the Arctic Circle, and to test many kinds of equipment and clothing designed to withstand the rigors of unrelenting sub-zero weather.
PopularScience_19460401_0148_004_0095.xml
article
130
130,131,132,133
SCIENCE AT WORK
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RADIO HOTFOOT makes production jump
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J. D. RATCLIFF
THE most radical advance in heating since man first put fire to use is heating by radio waves. In seconds, these magic waves can be used to heat steel white hot. Slowed down, they can be used to vulcanize rubber—producing a tire that promises to last the life of a car.
PopularScience_19460401_0148_004_0096.xml
article
134
134,135
AUTOMOBILES
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Jazzed-Up Jaloppies
EX-GIs USE SERVICE KNOW-HOW TO SPEED UP FORDS AND CHEVVIES
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ANDREW R. BOONE.
WITH tricks they learned while repairing jeeps in New Guinea, tanks in Germany, and airplane engines at bases throughout the world, ex-GIs are doctoring up run-of-the-mill, prewar jaloppies and assaulting old speed records. Several score veterans of Southern California towns have been gathering on week ends at a group of dry lakes on the Mojave Desert.
PopularScience_19460401_0148_004_0097.xml
article
136
136
modern living
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modern living
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PLASTIC POT SCOURERS are a new item for kitchen-sink equipment. They are used with the customary pot-washing soaps and consist of tiny plastic beads anchored to a pad of minute cotton loops. The plastic used in them is plaskon resin, made by the Libby-Owens-Ford Plaskon Division, and the pads are manufactured by the Downy Products Company, of Orange, N. J.
PopularScience_19460401_0148_004_0098.xml
article
137
137
AUTOMOBILES
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auto ideas
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RIGOROUS TESTS are made each day on a car or truck chosen at random from the production line of the Ford Motor Company’s River Rouge Plant. A driver and mechanic take the car to a test track and spend the day checking everything from the windshield wiper to the engine horsepower.
PopularScience_19460401_0148_004_0099.xml
article
138
138,139,140
AUTOMOBILES
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Gus Gets Back an Old Customer
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MARTIN BUNN
JOE CLARK came through the office door into the Model Garage shop, a ledger under his arm and an expression of dissatisfaction on his face. “Look here,” he said to Gus Wilson, opening the ledger at a page he had marked with a blotter and pointing an inky forefinger at its neat entries.
PopularScience_19460401_0148_004_0100.xml
article
141
141,142,143
RADIO & ELECTRICITY
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ROLLING RADIO SHOP-Last Word In Gadgetry
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THIRSTY? Sleepy? Like music? Movies? Need a shave ? John Towber’s gadget car deluxe, shown above and also in color on page 120, supplies all these needs—and more. Except for home, there’s no place like it. A 1941 convertible, it has almost everything.
PopularScience_19460401_0148_004_0101.xml
article
144
144,145
Streamlined Scooter
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HAS TURBINE DRIVE
DESIGNER'S DREAM CYCLE USES A IT SPORTS A POLISHED ALUMINUM 4-HP. ENGINE AND GETS 60 M.P.H. BODY ON A LIGHT TUBULAR FRAME
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CHARLES T. PEARSON
WITH an eye to the short-trip driver, quick-delivery services, and vacationists, Ray Russell, of Detroit, has designed and built an unconventional motor scooter. His engineering model has been clocked at 60 m.p.h., he says, and gets nearly 60 miles to a gallon of gasoline.
PopularScience_19460401_0148_004_0102.xml
article
145
145
AUTOMOBILES
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Four-Wheel Trailer for Farm and Highway Steers at Both Ends
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REAR wheels pivoted to follow the tracks of the front give this farm trailer the maneuverability of a two-wheeler. Its steering mechanism, which consists of a reach having a pinion at each end, was invented and patented by Dallas B. Avery, of Imlay City, Mich.
PopularScience_19460401_0148_004_0103.xml
article
146
146,147,148,149,150
THE HOME AND WORKSHOP
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Rifle Telescope Sight from Salvaged Lense
SHOOTING ACCURACY THAT WILL IS EASY WITH THIS 3 ½-POWER SPELL DOOM TO "VARMINTS" SIGHT FOR SMALL-BORE RIFLES
HOW A TELESCOPE SIGHT~WORKS
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WALTER E. BURTON
MAKING a telescope sight for a rifle is an excellent home-workshop project for the marksman who has a taste for fine lathework. With careful work he will turn out a rifle sight that will enable him to put a bullet in the 10-ring or to knock over a woodchuck far more often than would be possible with the use of iron sights.
PopularScience_19460401_0148_004_0104.xml
article
151
151
CRAFTSMEN AT WORK
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CRAFTSMEN AT WORK
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MONGREL MOTORCYCLES are favorite projects of many mechanics, but the hybrid shown below was crossbred over a 15,000mile search of half a dozen Pacific islands. Coast Guardsman Gerald C. Grant, of Oakland, Calif., picked up its Japanese outboard engine on New Guinea, a sprocket and two chains from a Jap motorcycle on Mindanao, its cut-down bicycle frame from his ship’s hold, and the wheels from a Signal Corps wire cart.
PopularScience_19460401_0148_004_0105.xml
article
152
152
HOME MECHANICS & HANDICRAFT
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Pennsylvania Dutch Hope Chest
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"BRIDES’ CHESTS” were among the outstanding productions of the Pennsylvania Dutch farmer-craftsmen who colonized parts of Pennsylvania in the early 1700’s. They brought with them a homely, substantial carpenter skill that echoed the medieval German tradition, and they embellished their creations with fanciful painting, as illustrated in full color on page 120.
PopularScience_19460401_0148_004_0106.xml
article
153
153
HOME MECHANICS & HANDICRAFT
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THREE CRAFT PROJECTS IN CLEAR PLASTIC
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FLORENCE DRAKE
BOTH decorative and utilitarian articles can be made for the home from small pieces of clear plastic. Such scraps may be left over from sheets obtained from a craftwork-supply house for making larger projects, or windshield trimmings and the like may sometimes even be had for the asking at an airplane factory.
PopularScience_19460401_0148_004_0107.xml
article
154
154,155,156
HOME MECHANICS & HANDICRAFT
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Midget Steam Tug . . . FOR DUCKPOND NAVIGATORS
Full Speed Ahead and Beware the Bullfrogs!
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ROY L. CLOUGH
DRIVEN by a spunky little engine of the oscillating-cylinder type, this snappy steam tug kicks up quite a wake in the neighborhood duckpond. Its boiler is a large oilcan, the piston and cylinder of its engine were made from a pair of fishing-rod ferrules, and one filling of water and alcohol keeps it going for more than an hour.
PopularScience_19460401_0148_004_0108.xml
article
157
157
HOME MECHANICS & HANDICRAFT
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SHELVES SET BETWEEN STUDS ORNAMENT PANELED WALL
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NORBERT ENGELS
THESE narrow recessed shelves provide an attractive setting for dishes, knickknacks, or books. They occupy the space between studs of an interior wall and are used to best advantage when both sides of the wall are to be paneled. However, if the adjoining room is to be plastered on lath, an appropriate piece of thin plywood can be set in for the back, or if plasterboard is to be used there, wallpaper, cloth, or paint is suitable for the background.
PopularScience_19460401_0148_004_0109.xml
article
157
157
[WOODWORKING]
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NAILING AND GLUING PLYWOOD
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Unglued plywood should be nailed at 12" intervals on intermediate studs and at 6" around the edges. Nail glued plywood enough to hold until the glue dries. To permit shifting of the edges as cupping is flattened out, nail at the center and work toward edges and corners.
PopularScience_19460401_0148_004_0110.xml
article
158
158,159
KEEPING THE HOME SHIPSHAPE
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KEEPING THE HOME SHIPSHAPE
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PopularScience_19460401_0148_004_0111.xml
article
160
160
WHAT’S YOUR INGENUITY QUOTIENT?
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WHAT’S YOUR INGENUITY QUOTIENT?
Have you pulled off a smart one lately? We will pay for each contribution accepted for this page showing ingenious solutions of problems in the home, shop, garage, or camp. It doesn't matter if it's wacky—if it works.
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IT'S NO BULL of mine that stands quietly in his pasture. Whether peacefully munching his fodder, or angrily chasing me out of his domain, the frolicsome beast always managed to snarl his tether. Not to be outwitted by a heifer’s husband, I drove an old junk-wagon axle into the ground and tied a rope to the wheel.
PopularScience_19460401_0148_004_0112.xml
article
161
161
HOME MECHANICS & HANDICRAFT
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Mirror on Table Beside Typewriter Serves as End-of-Page Indicator
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O. D. COWLES.
YOUR typewriter bell signals the end of a line, but it is difficult to tell when you are on the last line of a page. If your typewriter is the kind that has no shield covering all the lower parts of the platen, a small mirror laid beside it on the right-hand side of the typewriter table will reflect the bottom of the platen and show when the end of the paper is reached.
PopularScience_19460401_0148_004_0113.xml
article
161
161
HOME MECHANICS & HANDICRAFT
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Earrings of Iridescent Sea Shell Are Ornamented with Silver Wire
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E. G.
NOVELTY earrings such as the initialed heart-and-arrow pair shown at left are made of ordinary sea shell and of silver wire from a jeweler’s supply house. File the shell to shape, sand it smooth, and buff to a high polish. The initials and arrows are shaped from flattened silver wire and attached to the shell with silver-wire rivets through holes made with a No. 73 drill.
PopularScience_19460401_0148_004_0114.xml
article
161
161
HOME MECHANICS & HANDICRAFT
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Sectionalized Rack Holds Dozens of Small Tools
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D. J. BACHNER
FILES, chisels, screwdrivers, and the like accumulated over a period of years are often too numerous to keep neatly racked on the workbench. Here is a sectionalized tool rack that will take care of dozens and also provide room for adding new tools as they are acquired.
PopularScience_19460401_0148_004_0115.xml
article
162
162,163,164,165
HOME MECHANICS & HANDICRAFT
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Cabinetmaking Problems and Their Solution
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EDWIN M. LOVE
GOOD design and manual skill are not the only requisites of successful cabinetmaking. Proper selection of materials and a logical plan of working, not to mention ingenuity in overcoming mistakes and in removing defects, are equally as essential.
PopularScience_19460401_0148_004_0116.xml
article
166
166
HOME MECHANICS & HANDICRAFT
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Ring-and-Triangle Puzzle Has Tricky Solution
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GEORGE BARR
AT FIRST glance the ring seems on this puzzle to stay. But lift it and the triangle to A, fold the upper section forward against the lower, pass the ring down over both uprights to the starting point,up to B, and left to C. Then turn the front half up and back against the lower, pass the ring on to the left, down the two diagonal wires, up to D— and it's free.
PopularScience_19460401_0148_004_0117.xml
article
166
166
MECHANICS & SHOPCRAFT
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Coiled Wire Yields Chain Links
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DONALD E. WETZLER
STAINLESS steel welding rod 3/32" in diameter provided the links for the chain and bracelet at the right. Polish the wire, insert it in a hole drilled in a ¼ " rod, and wind it on the rod in a lathe or drill press. Cut the resulting coil lengthwise with a hacksaw or milling machine, and you have a pile of links.
PopularScience_19460401_0148_004_0118.xml
article
166
166
HOME MECHANICS & HANDICRAFT
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Heart-Shaped Jewelry Boxes Cut from Solid Blocks of Wood
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WOOD for this matching pair of heartshaped jewelry boxes was picked up in the Philippines. Resembling mahogany, it originally came from Australia as part of a crate for Army rations. My wife’s initials are inlaid on the covers with ebony.
PopularScience_19460401_0148_004_0119.xml
article
167
167,168
HOME MECHANICS & HANDICRAFT
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Something NEW from Something OLD
STENCIL CRAFT TRANSFORMS ODDS AND ENDS INTO ATTRACTIVE ONE-OF-A-KIND NOVELTIES
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ELMA WALTNER
BOXES for cookies, cake, candy, and sewing materials, and even attractive trays and other novelties, can be made from tins, jars, and boxes ordinarily consigned to the trash pile. The addition of two coats of black lacquer or quick-drying enamel and the deft application of small decorative stencils work the transformation.
PopularScience_19460401_0148_004_0120.xml
article
168
168
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Hockey-Stick Legs on Ash Tray
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A. A. LEC
THREE hockey sticks make the legs of this stand for the sportsman smoker. They are drilled through and attached with six screws to the wood disk that holds the tray base at top and to the puck near the bottom. The tray base is turned to accommodate a heavy glass ash tray that can be removed for cleaning.
PopularScience_19460401_0148_004_0121.xml
article
168
168
HOME MECHANICS & HANDICRAFT
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Bullet Is Paper-Knife Handle
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J. C. M.
BOTH the steel-jacket bullet and the shell of a .30-cal. cartridge are used for the handle of this paper knife, while the blade is a strip of .040" brass or steel cut and filed to the shape shown below. The bullet must be carefully removed from the shell by gripping it in a chuck or a vise, or holding it in some other way without damaging it, and working the shell loose.
PopularScience_19460401_0148_004_0122.xml
article
168
168
HOME MECHANICS & HANDICRAFT
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Stapling Loose-Leaf Notebooks
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WALTER A. SIMOND
USED leaves of a loose-leaf notebook can be kept from tearing by fastening them together in groups of a half dozen or more with ordinary paper staples placed with a hand stapler near the ends of the pages in line with the perforations. If the holes are already worn or torn through, the staples should be placed just back of the original perforations to serve as reinforcements.
PopularScience_19460401_0148_004_0123.xml
article
169
169,170
HOME MECHANICS & HANDICRAFT
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Home Repairs for Fountain Pens
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HAROLD P. STRAND
ALMOST everybody has at least one fountain pen that refuses to write properly. It may spill sudden blots and ruin a letter or important paper, or it may write irregularly, requiring shaking to get the ink to flow. Another common ailment is a failure to fill with ink.
PopularScience_19460401_0148_004_0124.xml
article
170
170
HOME MECHANICS & HANDICRAFT
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Desk Holder for Fountain Pen Is Turned from Hardwood
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ERNEST A. RICHMOND
THREE scraps of cherry, walnut, mahogany, or other nicely grained hardwood and a fountain pen from which the spring clip has been removed will give you a handsome desk-pen set. Turn the ball first from a 3" length of 2½ " turning square, using a template cut as shown at A to obtain a true sphere.
PopularScience_19460401_0148_004_0125.xml
article
171
171
HOME MECHANICS & HANDICRAFT
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Carving Name of Boat Makes It Stand Out Strikingly
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J. A. EMMETT
ANY boat, large or small, gains individuality from a bit of carving—its name on the bows or transom and possibly an added embellishment such as an arrowhead, a small star, a scroll, or other suitable motif. Carved and painted letters stand out with much greater visibility on the water, and they are also, of course, much harder to erase or disguise if the boat should be stolen.
PopularScience_19460401_0148_004_0126.xml
article
171
171
HOME MECHANICS & HANDICRAFT
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Tube Through Skiff Bottom Helps in Anchoring and Hauling
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J. A. E.
DUCK-HUNTING boats are frequently fitted with a tube at each end for thrusting through poles to keep them from drifting. A single anchoring tube is handy in the average skiff, for a pole is quicker and cleaner to use than the usual anchor or weight.
PopularScience_19460401_0148_004_0127.xml
article
172
172
HOME MECHANICS & HANDICRAFT
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Wagon-Wheel Garden Table
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CHARLES L. HEAD
WHAT is more appropriate as informal outdoor furniture than a wagon-wheel table ? The one shown at the left was made up from an old wheel obtained from a blacksmith. An 8" diameter cardboard linoleum packing tube served as a form for the column.
PopularScience_19460401_0148_004_0128.xml
article
172
172
HOME MECHANICS & HANDICRAFT
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Depth Gauge for Spading Fork
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J. K.
WHEN the depth of penetration of a spading fork can’t be controlled, extra work is added to the joto of turning soil. A simple depth stop like that shown below can be made from strap iron and bolted between the tines. It saves time and assures turning to uniform depth.
PopularScience_19460401_0148_004_0129.xml
article
172
172
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Insecticides Agitated on Cradle
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W. O. DOWNS
SOMETIMES it is convenient to mix solutions for garden sprays in quantity, such as in a 5-gal. bottle, but then proper agitation without danger of breaking the container becomes a problem. A wooden cradle built like that shown above will agitate the liquid sufficiently with complete safety if water and chemicals fill the bottle only about three quarters of the way.
PopularScience_19460401_0148_004_0130.xml
article
172
172
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Croquet Stops Protect Flowers
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KENILWORTH H. MATHUS
BALLS struck by croquet mallets sometimes have the disquieting habit of bouncing across walks, hiding under hedges, or injuring garden plants. A number of portable guard rails placed at strategic spots may add considerably to enjoyment of the game.
PopularScience_19460401_0148_004_0131.xml
article
173
173
MECHANICS & SHOPCRAFT
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Revolving Table Speeds Up Assembly of Print Jobs
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TED DOUGLAS
THIS revolving table is used in the print shop at the Michigan State Reformatory for assembling the pieces of multi-unit print jobs. The inner circular section revolves within an outer stationary table, and the worker picks up one unit from each of the piles of printed matter on the inner table as they pass him.
PopularScience_19460401_0148_004_0132.xml
article
173
173
MECHANICS & SHOPCRAFT
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Tolerance Gauged with Tape
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JOHN KRILL
TOLERANCE of work produced at the Youngstown Sheet & Tube Company is checked with a novel type of gauge. An index line and two lines to represent the absolute maximum and minimum acceptable circumference are scribed on a strip of steel tape. In use, the tape is wrapped around the work.
PopularScience_19460401_0148_004_0133.xml
article
173
173
[SHIPSHAPE HOME]
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CLEANING WALLPAPER
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If an entire room needs attention, first dust the walls with a vacuum brush. Then cut a fresh loaf of rye bread squarely in half and use the cut face to clean the wall areas from the top down, rubbing in straight, partly overlapping strokes. When the bread becomes soiled, cut off a slice and expose a new area.
PopularScience_19460401_0148_004_0134.xml
article
174
174
HOME MECHANICS & HANDICRAFT
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Ball Flying over Picket Fence Scores in Unusual Table Game
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MYRON FLEISHMAN
TIED to the end of a string and catapulted with a sharp flip, the wooden ball in this game will sail through the air and land beyond the little picket fence. As it does, the string drops between two pickets—and the score marked on the crosspiece there counts for the player, who gets three, shots.
PopularScience_19460401_0148_004_0135.xml
article
174
174
HOME MECHANICS & HANDICRAFT
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Typed Cribbage-Board Pattern
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JERRY SPRAGUE
IF YOU have trouble in finding a board for three-handed cribbage, it isn’t hard to make one yourself by usings a typewriter to space a template. With a piece of paper in the machine, strike the period key and space bar to get the spacing you wish, and then attach the paper to a suitable piece of wood with rubber cement.
PopularScience_19460401_0148_004_0136.xml
article
175
175
MECHANICS & SHOPCRAFT
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No Bruised Thumbs with This MAGNETIC TACK HAMMER
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ERVIN WALTERS
WHEN one end is a horseshoe magnet, a light hammer will pick up and place a tack or small nail without requiring it to be held, thus saving many a sore finger. Drill rod was used for the hammer shown. The striking end is first turned to the shape shown above; then the magnet end can be slotted with a hacksaw.
PopularScience_19460401_0148_004_0137.xml
article
176
176,177
MECHANICS & SHOPCRAFT
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NEW SHOP IDEAS
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RALPH D. CURTIS
J. M. C.
J. C. MAGEE
JOHN SHEST
A. R. P.
WILL THOMAS
MAGNIFIED READINGS on a slide rule are possible with the attachment of a semicylinder of plexiglas or lucite on the reading slide, as shown in the drawing above. The clear-plastic magnifier is filed to the shape shown in the top drawing, with the two ends left cylindrical and so spaced as to make a press fit on the slide.
PopularScience_19460401_0148_004_0138.xml
article
178
178,179,180,181,182
MECHANICS & SHOPCRAFT
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THE WHEN AND HOW OF SILVER-SOLDERING AND BRAZING
New Solutions to Tough Shop Problems Appear Like Magic As You Master Hard-Soldering Techniques
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VERNON B. CASE
HARD-SOLDERING is easy. It is also one of the most valuable techniques available to the craftsman for making metal-tometal joints, being simple, neat, and extremely strong. The novice is apt to confuse hardor silver-soldering (sometimes also called silver-brazing) with ordinary or soft-soldering.
PopularScience_19460401_0148_004_0139.xml
article
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183
PHOTOGRAPHY
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CAN YOU BEST THESE PICTURES?
We will pay $5 for any photo used on this page. Write your name and address on each print. Enclose a stamped, selfaddressed envelope and the negative, if it is available, and send your contribution to the Curious Photos Editor.
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GULLIVER IN LILLIPUT? No, this is just Old Faithful putting on a new act for visitors at Yellowstone National Park. The picture of this steamy snow man was snapped by Mrs. F. B. White, of Titusville, Pa. WALKING INTO A WILLIWAW, this Army pilot struggles to make headway against one of the sudden gales common to the Aleutians.
PopularScience_19460401_0148_004_0140.xml
article
184
184,185,186
PHOTOGRAPHY
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He Takes Aerial Photos from His Back Yard
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THE old stunt of using a kite to fly a camera aloft has been developed to a fine art by Frank S. Crowell, of St. Albans, N. Y. His homemade aluminum cameras, fitted with fuse-operated shutters, have flown to a height of 2,000, and Crowell explains that only the hazard of collision with planes has kept him from going higher on days when conditions were favorable for flying kites.
PopularScience_19460401_0148_004_0141.xml
article
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187
PHOTOGRAPHY
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PHOTO IDEAS
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D. J. BACHNER
E. S.
FRANK CAPORAEL
H. LEEPER
DARKROOM DISASTER may come to you, as it did to me one night, if you keep photographic solutions in uniform bottles. Reaching for the developer, I got the hypo instead, and poured it into a loaded film tank. Now I use bottles of different size and shape, as shown above.
PopularScience_19460401_0148_004_0142.xml
article
188
188,189,190,191,192
RADIO & ELECTRICITY
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Building a Cathode-Ray Oscilloscope
THE ONE-INSTRUMENT LAB FOR RADIO SERVICING
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JOHN W. CAMPBELL,
NOT long ago, radio servicemen could troubleshoot almost any ailment just by listening to the symptoms. Circuits were —by present standards—relatively simple, and in nine cases out of ten a little sound judgment would quickly suggest the cause of the trouble.
PopularScience_19460401_0148_004_0143.xml
article
193
193
RADIO & ELECTRICITY
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News in electronics
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BLACK LIGHT makes dial markings and control knobs of home radios and television receivers glow with color. The light, invisible in itself, consists of ultraviolet rays that activate fluorescent pigments used for the markings. It comes from a miniature tubular bulb made by Westinghouse.
PopularScience_19460401_0148_004_0144.xml
article
194
194,195,196
PSM FEATURES
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Polymerization .. THE BIG WORD IN SYNTHETICS
BY GROUPING SEVERAL MOLECULES INTO A BIG ONE, CHEMISTS GIVE US PRODUCTS UNKNOWN IN NATURE
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KENNETH M. SWEZEY
POLYMERIZATION is the key to a great wonder world of synthetic plastics, rubber, gasoline, and other creations of the modern chemical laboratory. The word may be a bit difficult to pronounce, but it is easy to define. Polymer, its root, comes from two Greek words meaning “consisting of a number of parts.”
PopularScience_19460401_0148_004_0145.xml
article
197
197
TABLE TRICKS
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TABLE TRICKS
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"SPIRIT MATCHES" appear to pass through each other as you bring them together in your two hands. Hold one wooden match in each hand between the tips of the thumb and forefinger, one in a vertical and the other in a horizontal position, as shown at left, and bring your hands together.
PopularScience_19460401_0148_004_0146.xml
article
198
198,199,200,201
HOME MECHANICS & HANDICRAFT
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FINISHING YOUR WEEK-END TRAILER
PART II
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John Gartner
WHAT with spring getting under way, many people who last month passed up this invitation to build a lightweight trailer may now be ready to change their minds. It’s not too late to start construction, but don’t try to build your trailer from the information given in this installment alone.
PopularScience_19460401_0148_004_0147.xml
article
202
202
HOME OWNERS
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HOME OWNERS
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DINING IN THE FOYER is a convenience in some small apartments, a necessity in others. This attractive, generous-sized table, designed for just such use and exhibited recently at a show staged by R. H. Macy & Co. in New York, folds against the wall and so does not occupy valuable floor space except when needed.
PopularScience_19460401_0148_004_0148.xml
article
203
203
HOME MECHANICS & HANDICRAFT
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What's Wrong?
ANSWERS
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How good a painter are you? There are eight errors in the six drawings shown here —three of them in Fig. 3 and one each in the others. Can you find them all and qualify for your next paint job? The correct answers are given upside down below. 1. This grit is too coarse for this kind of job.
PopularScience_19460401_0148_004_0149.xml
article
203
203
HOME MECHANICS & HANDICRAFT
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Trick Joint Is Made with Diagonal Dovetails
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G. H. MILLER
Two posts can be joined end to end with a pair of dovetail joints that, when fitted together, give the appearance of a dovetail on each of the four faces. The dovetail tenons and their mortises are cut diagonally across adjoining faces, and in assembly they are slid together from one corner, as indicated in the drawing at left.
PopularScience_19460401_0148_004_0150.xml
article
204
204,205
PSM FEATURES
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HOME EXPERIMENTS SHOW HOW PLANTS GROW
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PLANTS FEED on a water solution of minerals drawn from the soil, the excess water being transpired (that is, exhaled) through tiny leaf openings known as stomata. As a demonstration of this process, pour equal amounts of water in two glasses, place a growing plant in one after cleaning all soil from the roots, and pour oil in both glasses to prevent evaporation.
PopularScience_19460401_0148_004_0151.xml
article
206
206,207
HOME MECHANICS & HANDICRAFT
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I Built This Radio Bookcase with Hand Tools
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THOMAS W. KELLEY
WHEN construction is kept simple to avoid intricacies such as curves, moldings, and tenoned joints, even ambitious projects can be tackled with little more than a square, plane, handsaw, screwdriver, and gluepot. I found our only bookcase becoming so badly overloaded that it was getting sway-backed, and I didn’t have access to a home workshop in the small apartment we occupied.
PopularScience_19460401_0148_004_0152.xml
article
207
207
HOME MECHANICS & HANDICRAFT
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Desk, Cabinet, and Shelves Are Combined in Room Corner Unit
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WILLIAM FREEMAN
BUILT-IN furniture, long popular in homes, is never more effective than when it ties together the decorations of a room. The piece shown here is strictly utilitarian, but it combines service with the beauty of the simple lines associated with modern design.
PopularScience_19460401_0148_004_0153.xml
article
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208
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King-Size Rhubarb and Beets
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VEGETABLES come large in Australia, as evidenced by the rhubarb and silver beet in the photo at left. Silver beet is described as a spinach with a heavy root. The plants weighing down the child were in the Cheltenham Horticultural Society show.
PopularScience_19460401_0148_004_0154.xml
article
208
208
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Eggshells Protect Seedlings
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DAVID B. CLAPP
ONE method of seeding flats to protect the tiny roots from cutworms and fungi is to plant the seeds in eggshells, as above. The shells are filled with soil, seeded, and put in the flats, which are then filled evenly with soil. Shells are transplanted along with the seedlings, and they soon rot away in the ground.
PopularScience_19460401_0148_004_0155.xml
article
208
208
MECHANICS & SHOPCRAFT
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Motorized Saw Clears Trees and Brush
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MOUNTED on a turntable on a Model-A Ford chassis, the circular saw shown below can be swung to either side to cut down trees or brush. Except for a 6-hp. air-cooled auxiliary gas engine that powers the saw, the entire unit was built by C. M. Canady, of Liberty Hill, Texas, from old automobile parts and scrap iron.
PopularScience_19460401_0148_004_0156.xml
article
208
208
MECHANICS & SHOPCRAFT
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Well Pipe-Line Cutoff for Making Repairs
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RALPH S. WILKES
WATER from a deep well into a gravity-flow pipe line can be shut off at the source with a rubber sponge on a wooden block, as shown above, to facilitate repairing leaks. The sponge block is nailed to a long stick, which in turn is attached with a spring to the pipe to hold the sponge against the end of the pipe.
PopularScience_19460401_0148_004_0157.xml
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209
209
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THE TEXAS COMPANY
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THE TEXAS COMPANY
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PopularScience_19460401_0148_004_0158.xml
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210
210
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NICHOLSON FILE CO.
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NICHOLSON FILE CO.
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PopularScience_19460401_0148_004_0159.xml
article
210
210
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Brightest Commercial Light Bulb
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THE world’s most brilliant commercial lamp (above) is a product of the Westinghouse Lamp Division. A 1,000-watter with a tubular bulb, its yellow-green light of 60,000 lumens comes from a mercury-vapor arc about as thick and twice as long as a cigarette.
PopularScience_19460401_0148_004_0160.xml
article
210
210
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New Oils Function Efficiently In Both Extreme Cold and Heat
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OILS that continue to flow at 121° below zero Fahrenheit and yet neither oxidize nor sludge at 302° above zero have been developed in the General Electric Company laboratories at Schenectady, N. Y. The new oils, of the silicone oil family, are adapted for use as hydraulic fluids in aircraft systems and as lubricants in watches and clocks. They are valuable as insulators in electrical apparatus. Silicone rubbers have been produced that do not decompose at 400° F. or harden at 67 ° below zero, and maintain their elasticity under load for long periods at the high temperature of 302°.
PopularScience_19460401_0148_004_0161.xml
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211
211
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NATIONAL CARBON COMPANY, INC.: EVEREADY TRADE-MARK
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NATIONAL CARBON COMPANY, INC.
EVEREADY TRADE-MARK
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PopularScience_19460401_0148_004_0162.xml
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212
212
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THE ELECTRIC STORAGE BATTERY COMPANY: EXIDE
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THE ELECTRIC STORAGE BATTERY COMPANY
EXIDE
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PopularScience_19460401_0148_004_0163.xml
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213
213
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U. S. Army
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U. S. Army
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PopularScience_19460401_0148_004_0164.xml
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214
214
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Croton Watch Co.: Croton Aquamatic
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Croton Watch Co.
Croton Aquamatic
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PopularScience_19460401_0148_004_0165.xml
advertisement
214
214
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SPARK PLUG COMPANY: Champion spark plugs
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SPARK PLUG COMPANY
Champion spark plugs
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PopularScience_19460401_0148_004_0166.xml
article
214
214
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New Projector Has Carrier That Ventilates Slides
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DESIGNED for either slides or film strips, the Marton Projector is equipped with a new type of carrier that permits ventilation of the slide while it is being projected. The projector, which is marketed through Associated Photo Products Co., of New York City, does not necessitate the use of heatresistant filters.
PopularScience_19460401_0148_004_0167.xml
article
214
214
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"Flying Elevator" Tests Angles Of Glide-Path Radio Signals
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DESCENDING foot by foot, hovering at various levels when necessary, a helicopter at Wright Field has been used to calibrate the radio signals of the instrument-approach and glide-path landing systems. The glide path intersects a radio signal sent out to “home” the plane from a point 15 miles beyond the runway, and provides a beam on which the pilot can descend through an overcast for a blind landing.
PopularScience_19460401_0148_004_0168.xml
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215
215
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Champion Spark Plug Company: Champion Spark Plugs
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Champion Spark Plug Company
Champion Spark Plugs
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PopularScience_19460401_0148_004_0169.xml
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216
216
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LINK AVIATION DEVICES, Inc.: LINKANOE
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LINK AVIATION DEVICES, Inc.
LINKANOE
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PopularScience_19460401_0148_004_0170.xml
article
216
216
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Ball Bearings Versus Roller Bearings Form This Striking Chess Set
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BALL and roller bearings are employed as the pieces and pawns of a striking chess set produced by the Schirgun Corporation, of New York City. Ball bearings are used for all the men on one side and roller bearings for those on the other. In each case, the complete bearing makes the king.
PopularScience_19460401_0148_004_0171.xml
article
216
216
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Knurling Tightens Loose Bushings
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W. TEEBOON
IF TOO much metal should be removed accidentally when a bushing is being machined for a drive fit, the error can be remedied by knurling the outside of the bushing. The knurling will raise the surface of the metal sufficiently to give the tight fit that is desired.
PopularScience_19460401_0148_004_0172.xml
article
216
216
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Disk Erasers Serve as Toy Wheels
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R. P. S.
DISK erasers provide practically readymade rubber-tired wheels for small toys or model airplanes. If the diameter of the eraser is too great for the wheel required, the outer edge of the rubber can be cut and worn away. A coat of paint will hide the printing on the disk at the center of the eraser.
PopularScience_19460401_0148_004_0173.xml
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217
217
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HASTINGS MANUFACTURING COMPANY: PISTON RINGS
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HASTINGS MANUFACTURING COMPANY
PISTON RINGS
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PopularScience_19460401_0148_004_0174.xml
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218
218
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The Chicago Drillet Corporation
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The Chicago Drillet Corporation
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PopularScience_19460401_0148_004_0175.xml
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219
219
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EVINRUDE MOTORS
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EVINRUDE MOTORS
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PopularScience_19460401_0148_004_0176.xml
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220
220
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ATLAS PRESS CO.
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ATLAS PRESS CO.
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PopularScience_19460401_0148_004_0177.xml
article
220
220
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War Device Becomes Play Ball
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A PEACETIME play ball (above left) that weighs less than 10 ounces but is tough as an elephant’s hide is being made with the same dies that produced the wartime, lifesaving solar still (above right). The still had a black bag inside the Vinylite plastic sheeting and provided fresh water, without the use of chemicals, from salt water for men lost at sea.
PopularScience_19460401_0148_004_0178.xml
article
220
220
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Three New Wax Plants Found
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THREE wax-producing plants not previously known were recently discovered 600 miles up the Amazon River in Brazil by Nelson S. Knaggs, of the Hilton-Davis Company Division of Sterling Drug Inc., Cincinnati. Now being analyzed to determine whether this wax can be adapted to commercial uses, the plants’ products would alleviate the scarcity which has upped the price of wax from 35 cents to $1.50 a pound.
PopularScience_19460401_0148_004_0179.xml
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221
221
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HARLEY-DAVIDSON MOTOR COMPANY
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HARLEY-DAVIDSON MOTOR COMPANY
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PopularScience_19460401_0148_004_0180.xml
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222
222
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HENRY LEONARD & THOMAS, INC.
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HENRY LEONARD & THOMAS, INC.
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PopularScience_19460401_0148_004_0181.xml
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222
222
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JOHNSON MOTORS
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JOHNSON MOTORS
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PopularScience_19460401_0148_004_0182.xml
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223
223
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X-acto Crescent Products Co., Inc.
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X-acto Crescent Products Co., Inc.
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PopularScience_19460401_0148_004_0183.xml
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224
224
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ZENITH RADIO CORP.: Model B-3-A
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ZENITH RADIO CORP.
Model B-3-A
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PopularScience_19460401_0148_004_0184.xml
article
224
224
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Mount for Instruments Absorbs Shock in All Directions
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UTILIZING an entirely new principle, a shock-absorption mount for delicate instruments has been developed by Robinson Aviation, Inc., of Teterboro, N. J. It combines a damping system, a snubbing system, and electrical bonding in a single aluminum housing, and with them absorbs vibration in any direction.
PopularScience_19460401_0148_004_0185.xml
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225
225
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Gillette Safety Razor Company
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Gillette Safety Razor Company
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PopularScience_19460401_0148_004_0186.xml
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226
226
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BRIGHT STAR BATTERY CO.: BRIGHT STAR
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BRIGHT STAR BATTERY CO.
BRIGHT STAR
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PopularScience_19460401_0148_004_0187.xml
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226
226
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Advertisement
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PopularScience_19460401_0148_004_0188.xml
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226
226
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OTTAWA MFG. CO.: 6 H-P LOG SAW
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OTTAWA MFG. CO.
6 H-P LOG SAW
[no value]
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PopularScience_19460401_0148_004_0189.xml
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227
227
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THE DELTA MANUFACTURING CO.: THE Deltagram
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THE DELTA MANUFACTURING CO.
THE Deltagram
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PopularScience_19460401_0148_004_0190.xml
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228
228
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L&H STERN, INC.: LHS pipe
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L&H STERN, INC.
LHS pipe
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PopularScience_19460401_0148_004_0191.xml
article
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Spot Welder Has Tweezer Leads
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INSULATED, forged copper tweezers enable users of the new Besco spot-welding machine to weld metal parts smaller than an eighth of an inch around or thick. Previously it has been difficult to weld parts this small because they are so hard to hold.
PopularScience_19460401_0148_004_0192.xml
article
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N. Y.-Washington Link Ready For U. S. Television Network
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THE first link of a national 6,000-mile network planned by the Bell System for the transmission of television pictures and sound is ready. It is the coaxial cable running between New York and Washington, and it is intended for regular intercity television service six nights a week as well as for telephone use.
PopularScience_19460401_0148_004_0193.xml
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229
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FRED ARBOGAST & CO.: Hawaiian Wiggler
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FRED ARBOGAST & CO.
Hawaiian Wiggler
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PopularScience_19460401_0148_004_0194.xml
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Advertisement: PLASTIC WOOD
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PLASTIC WOOD
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article
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Old Surveying Device Used Again
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ONE hundred years old but still accurate, a 150-lb. surveying instrument was recently used to survey the grounds of Mission Santa Barbara when it was discovered in a subterranean vault. Ill-fated Emperor Maximilian of Mexico had presented the cumbersome device to the historic California mission.
PopularScience_19460401_0148_004_0196.xml
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New Lucite Flashlight, “Torch,“ Both Decorative and Useful
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A NEW lucite flashlight, the Gemglo Torch, can be made to serve as a blinker signal light, night light, and table-light decoration. When the cap of the Torch is turned, the flashlight beam is thrown on. Then it is merely a flashlight. It becomes a blinker signal light when a half-twist is given to the cap.
PopularScience_19460401_0148_004_0197.xml
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Ford: THE BIG 100 H.P.V-8 ENGINE
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Ford
THE BIG 100 H.P.V-8 ENGINE
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PopularScience_19460401_0148_004_0198.xml
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AMERICAN FLOOR SURFACING MACHINE CO
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AMERICAN FLOOR SURFACING MACHINE CO
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PopularScience_19460401_0148_004_0199.xml
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COMET METAL PRODUCTS CO., Inc.
[no value]
COMET METAL PRODUCTS CO., Inc.
[no value]
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PopularScience_19460401_0148_004_0200.xml
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DU PONT: MENDS
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DU PONT
MENDS
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PopularScience_19460401_0148_004_0201.xml
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SNAP-ON TOOLS CORPORATION: Snap-on Tools
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SNAP-ON TOOLS CORPORATION
Snap-on Tools
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PopularScience_19460401_0148_004_0202.xml
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UNITED STATES PLYWOOD CORPORATION: WELDWOOD
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UNITED STATES PLYWOOD CORPORATION
WELDWOOD
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PopularScience_19460401_0148_004_0203.xml
article
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Uses Polarized Light to Test Eyes
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A PORTABLE instrument that utilizes polarized light to check vision has been developed by the American Optical Co. for a program to promote efficiency and safety in factories. Polarized light was used because it vibrates in one plane only; ordinary light vibrates in all directions.
PopularScience_19460401_0148_004_0204.xml
article
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Simpler, Lighter Recording System
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SIMPLER and lighter is Western Electric’s new recording system. It contains a portable amplifier-noise reduction unit, powersupply unit, recorder, and two “mikes.” It records standard original or release-type sound tracks on 35-mm. or 16-mm. film.
PopularScience_19460401_0148_004_0205.xml
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BURGESS BATTERY COMPANY: vibro - tool
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BURGESS BATTERY COMPANY
vibro - tool
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PopularScience_19460401_0148_004_0206.xml
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GREENLEE TOOL COMPANY: GREENLEE tools
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GREENLEE TOOL COMPANY
GREENLEE tools
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PopularScience_19460401_0148_004_0207.xml
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Ford Motor Co.
[no value]
Ford Motor Co.
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PopularScience_19460401_0148_004_0208.xml
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KANSAS CITY SPECIALTIES CO.
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KANSAS CITY SPECIALTIES CO.
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PopularScience_19460401_0148_004_0209.xml
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UTICA DROP FORGE AND TOOL CORPORATION: UTICA TOOLS
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UTICA DROP FORGE AND TOOL CORPORATION
UTICA TOOLS
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PopularScience_19460401_0148_004_0210.xml
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237
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EDMUND SALVAGE COMPANY: Navy's 7 x 50 Model
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EDMUND SALVAGE COMPANY
Navy's 7 x 50 Model
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PopularScience_19460401_0148_004_0211.xml
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238
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DU PONT
CLEANSER
DU PONT
DU PONT Acid and Rust INHIBITOR
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PopularScience_19460401_0148_004_0212.xml
article
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Lathe Makes Giant X-Ray Tubes
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SUPER-VOLTAGE X-ray tubes, including doughnut-shaped tubes for betatrons, are produced on the immense glass-working lathe above. Weighing 4,000 pounds, and probably the largest in the world, the machine was designed and constructed by the Vacuum Tube Engineering Department of General Electric X-Ray Corp., Chicago.
PopularScience_19460401_0148_004_0213.xml
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Birds Fooled Nazi Radar Units; Were Called “Spurious Echoes“
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GERMAN radars picked up flights of birds, just as British and American sets did, but instead of analyzing them correctly the Nazis called them “Scheinziele,” or “spurious echoes.” British investigators found a German document on the subject, which noted that these “spurious echoes” came with special frequency from the wide mouths of rivers but said “their physical origin is so far unexplained.
PopularScience_19460401_0148_004_0214.xml
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239
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GRAFLEX INC.
[no value]
GRAFLEX INC.
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PopularScience_19460401_0148_004_0215.xml
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239
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JOHN H. GRAHAM & Co. INC.
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JOHN H. GRAHAM & Co. INC.
[no value]
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PopularScience_19460401_0148_004_0216.xml
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239
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Fayette R. Plumb, Inc.
[no value]
Fayette R. Plumb, Inc.
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PopularScience_19460401_0148_004_0217.xml
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PopularScience_19460401_0148_004_0219.xml
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Advertisement
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PopularScience_19460401_0148_004_0220.xml
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Advertisement
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PopularScience_19460401_0148_004_0221.xml
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PopularScience_19460401_0148_004_0222.xml
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243
243
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VANROY COMPANY, Inc.: screw-stem pipe
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VANROY COMPANY, Inc.
screw-stem pipe
[no value]
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PopularScience_19460401_0148_004_0223.xml
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243
243
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BELTONE HEARING AID CO.: Beltone
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BELTONE HEARING AID CO.
Beltone
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PopularScience_19460401_0148_004_0224.xml
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PopularScience_19460401_0148_004_0225.xml
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245
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PopularScience_19460401_0148_004_0226.xml
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246
246
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Smooth-On Manufacturing Co.
[no value]
Smooth-On Manufacturing Co.
[no value]
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PopularScience_19460401_0148_004_0227.xml
article
246
246
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Neither Ice Nor Boiling Water Fazes New Current-Converter
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A RECTIFIER that turns alternating current into direct current as efficiently when it is immersed in boiling water or packed in ice as it does under normal conditions has been produced by the Westinghouse Electric Corp. Even salt spray, which used to destroy unprotected rectifiers on the decks of ships in a few hours, did not appear to faze the new type in tests.
PopularScience_19460401_0148_004_0228.xml
article
246
246
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Geologist Claims Meteorite Did Not Dig Arizona Crater
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MORE than $1,500,000 has been spent trying to find the supposed meteorite that made the famous Arizona hole that is usually referred to as Meteor Crater. Now comes Dr. N. H. Darton, of the U. S. Geological Survey, to say that the crater wasn’t caused by a meteorite at all.
PopularScience_19460401_0148_004_0229.xml
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247
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DREMEL MFG. CO.
[no value]
DREMEL MFG. CO.
[no value]
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PopularScience_19460401_0148_004_0230.xml
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247
247
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FEDERAL MANUFACTURING & ENGINEERING CORP.: FEDERAL Enlarger
[no value]
FEDERAL MANUFACTURING & ENGINEERING CORP.
FEDERAL Enlarger
[no value]
[no value]
PopularScience_19460401_0148_004_0231.xml
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247
247
[no value]
[no value]
R. H. SHEPPARD CO., INC.
[no value]
R. H. SHEPPARD CO., INC.
[no value]
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PopularScience_19460401_0148_004_0232.xml
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248
248
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PopularScience_19460401_0148_004_0233.xml
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249
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Advertisement
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PopularScience_19460401_0148_004_0234.xml
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250
250
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ALLIED RADIO CORP.
[no value]
ALLIED RADIO CORP.
[no value]
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PopularScience_19460401_0148_004_0235.xml
article
250
250
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Night Boat Acquires Radar Unit
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WESTINGHOUSE engineers adjust the antenna of marine radar equipment for the Old Bay Line’s Baltimore-Norfolk night boat, City of Richmond, the first major radar installation for regular, long-distance, commercial, passenger-carrying service.
PopularScience_19460401_0148_004_0236.xml
article
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250
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DDT-Rotenone Whipping Ticks
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DDT and rotenone, old standby of insecticides, have formed a team that promises to whip fever-bearing cattle ticks in the tropics. Applied as a fine, mistlike spray, the double-dose killer has cleaned up from 85 percent to 90 percent of the ticks on heavily infested animals over a period of a week.
PopularScience_19460401_0148_004_0237.xml
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PopularScience_19460401_0148_004_0240.xml
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254
254
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BMC MANUFACTURING CORP.
[no value]
BMC MANUFACTURING CORP.
[no value]
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PopularScience_19460401_0148_004_0241.xml
article
254
254
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Background Stamp Cut from Rubber
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W. A. JACOBSON
SPONGE rubber and an ordinary rubber stamp provide a means of producing your own letterheads. Cut the sponge rubber to any design that strikes your fancy and attach it with rubber cement to a stamp made from flat wood and a short piece of broom handle, as indicated above.
PopularScience_19460401_0148_004_0242.xml
article
254
254
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Jigsaw-Blade Vise from Butt Hinge
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H. C.
JIGSAW blades may be sharpened in a vise made from a 4" butt hinge. Bevel the edges of the hinge as indicated in the drawing above. Any small bench vise gives the necessary pressure to the hinge.
PopularScience_19460401_0148_004_0243.xml
article
254
254
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Synthetic Insecticide Works Well
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FIELD tests conducted over the past five years have demonstrated that Lethane B-71. a synthetic insecticide developed by the Rohm & Haas Company, of Philadelphia, has a killing power equal to that of dusts containing either nicotine, rotenone, or pyrethrum in the control of sucking insects.
PopularScience_19460401_0148_004_0244.xml
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PopularScience_19460401_0148_004_0245.xml
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256
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PopularScience_19460401_0148_004_0246.xml
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257
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259
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PopularScience_19460401_0148_004_0250.xml
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PopularScience_19460401_0148_004_0255.xml
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Advertisement: POPULAR SCIENCE
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POPULAR SCIENCE
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PopularScience_19460401_0148_004_0256.xml
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283
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THE MAYAN ORDER
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THE MAYAN ORDER
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PopularScience_19460401_0148_004_0272.xml
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283
283
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Advertisement
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PopularScience_19460401_0148_004_0273.xml
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283
283
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CHRISTY SUPPLY COMPANY
[no value]
CHRISTY SUPPLY COMPANY
[no value]
[no value]
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PopularScience_19460401_0148_004_0274.xml
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283
283
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North American Mfg. Co.
[no value]
North American Mfg. Co.
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PopularScience_19460401_0148_004_0275.xml
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284
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PopularScience_19460401_0148_004_0277.xml
article
286
286
TO: Reader FROM: Editor
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The Story of A Story
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IT BEGINS last January. The managing editors, the art editor, and myself sat around the long table in groping silence. Our job was to define the cover story that would be most in your interest for this, the April issue. Outside, it was snowing.
PopularScience_19460401_0148_004_0278.xml
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287
287
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Wright Aeronautical Corporation
[no value]
Wright Aeronautical Corporation
[no value]
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PopularScience_19460401_0148_004_0279.xml
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288
288
[no value]
[no value]
SOUTH BEND LATHE WORKS
[no value]
SOUTH BEND LATHE WORKS
[no value]
[no value]
[no value]
PopularScience_19460401_0148_004_0280.xml
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289
289
[no value]
[no value]
Wm. H. Wise & Co., Inc.
[no value]
Wm. H. Wise & Co., Inc.
[no value]
[no value]
[no value]
PopularScience_19460401_0148_004_0281.xml
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290
290
[no value]
[no value]
R. J. Reynolds Tobacco Co.: CAMELS
[no value]
R. J. Reynolds Tobacco Co.
CAMELS
[no value]
[no value]
PopularScience_19460401_0148_004_0282.xml