Issue: 19490901

Thursday, September 1, 1949
Sept. 1949
3
True
155
Sunday, December 14, 2014

Articles
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POPULAR SCIENCE
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PopularScience_19490901_0155_003_0001.xml
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0_2,1
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NATIONAL EDUCATIONAL ALLIANCE, Inc.
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NATIONAL EDUCATIONAL ALLIANCE, Inc.
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PopularScience_19490901_0155_003_0002.xml
tableOfContents
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2,4
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TABLE OF CONTENTS
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PopularScience_19490901_0155_003_0003.xml
masthead
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2
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POPULAR SCIENCE
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PopularScience_19490901_0155_003_0004.xml
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3
3
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19490901_0155_003_0005.xml
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4
4
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WILFRED FUNK, Inc.
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WILFRED FUNK, Inc.
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PopularScience_19490901_0155_003_0006.xml
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5
5
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Simmons-Boardman Publishing Corp.
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Simmons-Boardman Publishing Corp.
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PopularScience_19490901_0155_003_0007.xml
article
6
6,10,12,14
Letters
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Letters
Chicago Has a 'Chute Jump, Too
Got a Screw Loose?
Then a Tire Blows ...
Merry-Go-Round Won’t Go Round
Wax Saves Cement
Plows Make Progress
Push-Button Problem
Whoopee for Whittling!
Proof of the Pudding
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Sir: Your article “How You Are Thrilled . . . but Not Killed” was very interesting, but the statement made on page 87 that the parachute jump at Coney Island’s Steeplechase Park is the only one of its kind set me wondering. Living in Chicago, I have gone to Riverview Park and ridden on the parachute jump there.
PopularScience_19490901_0155_003_0008.xml
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6
6
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ADCOX SCHOOL
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ADCOX SCHOOL
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PopularScience_19490901_0155_003_0009.xml
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7
7
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LASALLE EXTENSION UNIVERSITY
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LASALLE EXTENSION UNIVERSITY
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PopularScience_19490901_0155_003_0010.xml
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8
8
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COMMERCIAL TRADES INSTITUTE
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COMMERCIAL TRADES INSTITUTE
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PopularScience_19490901_0155_003_0011.xml
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9
9
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AUDEL, Publishers
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AUDEL, Publishers
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PopularScience_19490901_0155_003_0012.xml
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10
10
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Dean of Enrollments
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Dean of Enrollments
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PopularScience_19490901_0155_003_0013.xml
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11
11
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Advertisement
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PopularScience_19490901_0155_003_0014.xml
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12
12
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KIKTAVI COMPANY
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KIKTAVI COMPANY
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PopularScience_19490901_0155_003_0015.xml
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13
13
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DeFOREST'S TRAINING, INC.
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DeFOREST'S TRAINING, INC.
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PopularScience_19490901_0155_003_0016.xml
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14
14
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Philip Morris & Co., Ltd., Inc.
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Philip Morris & Co., Ltd., Inc.
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PopularScience_19490901_0155_003_0017.xml
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15
15
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CLARENCE A. O'BRIEN & HARVEY JACOBSON
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CLARENCE A. O'BRIEN & HARVEY JACOBSON
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PopularScience_19490901_0155_003_0018.xml
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16
16
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SPRAYBERRY ACADEMY
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SPRAYBERRY ACADEMY
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PopularScience_19490901_0155_003_0019.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_19490901_0155_003_0020.xml
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18
18
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PopularScience_19490901_0155_003_0021.xml
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19
19
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NATIONAL SCHOOLS
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NATIONAL SCHOOLS
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PopularScience_19490901_0155_003_0022.xml
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20
20
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PopularScience_19490901_0155_003_0023.xml
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21
21
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B. W. COOKE
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B. W. COOKE
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PopularScience_19490901_0155_003_0024.xml
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PopularScience_19490901_0155_003_0025.xml
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23
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MoToR BOOK
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MoToR BOOK
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PopularScience_19490901_0155_003_0026.xml
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24
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PopularScience_19490901_0155_003_0027.xml
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25
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Advertisement
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PopularScience_19490901_0155_003_0028.xml
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26
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PopularScience_19490901_0155_003_0029.xml
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27
27
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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INTERNATIONAL CORRESPONDENCE SCHOOLS
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PopularScience_19490901_0155_003_0030.xml
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28
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PopularScience_19490901_0155_003_0031.xml
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29
29
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NATIONAL SCHOOLS
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NATIONAL SCHOOLS
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PopularScience_19490901_0155_003_0032.xml
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30
30
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PopularScience_19490901_0155_003_0033.xml
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31
31
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RADIO-TELEVISION TRAINING SCHOOL
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RADIO-TELEVISION TRAINING SCHOOL
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PopularScience_19490901_0155_003_0034.xml
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32
32
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PopularScience_19490901_0155_003_0035.xml
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33
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MIDWEST RADIO & TELEVISION CORP.
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MIDWEST RADIO & TELEVISION CORP.
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PopularScience_19490901_0155_003_0036.xml
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34
34
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PopularScience_19490901_0155_003_0037.xml
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35
35
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The HOME CRAFTSMAN Magazine, Dep’t.
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The HOME CRAFTSMAN Magazine, Dep’t.
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PopularScience_19490901_0155_003_0038.xml
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36
36
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PopularScience_19490901_0155_003_0039.xml
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37
37
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LAFAYETTE RADIO
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LAFAYETTE RADIO
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PopularScience_19490901_0155_003_0040.xml
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38
38
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PopularScience_19490901_0155_003_0041.xml
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PopularScience_19490901_0155_003_0042.xml
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PopularScience_19490901_0155_003_0043.xml
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PopularScience_19490901_0155_003_0044.xml
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PopularScience_19490901_0155_003_0045.xml
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43
43
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ART INSTRUCTION, INC.
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ART INSTRUCTION, INC.
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PopularScience_19490901_0155_003_0046.xml
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43
43
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INVENTOR & GADGETEER PUBLISHING CO.
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INVENTOR & GADGETEER PUBLISHING CO.
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PopularScience_19490901_0155_003_0047.xml
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43
43
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UTILITIES ENGINEERING INSTITUTE
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UTILITIES ENGINEERING INSTITUTE
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PopularScience_19490901_0155_003_0048.xml
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44
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PopularScience_19490901_0155_003_0049.xml
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PopularScience_19490901_0155_003_0050.xml
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PopularScience_19490901_0155_003_0051.xml
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47
47
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NORTHROP AERONAUTICAL INSTITUTE
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NORTHROP AERONAUTICAL INSTITUTE
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PopularScience_19490901_0155_003_0052.xml
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47
47
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The Lincoln Electric Company
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The Lincoln Electric Company
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PopularScience_19490901_0155_003_0053.xml
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PopularScience_19490901_0155_003_0054.xml
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PopularScience_19490901_0155_003_0055.xml
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PopularScience_19490901_0155_003_0056.xml
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PopularScience_19490901_0155_003_0057.xml
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PopularScience_19490901_0155_003_0059.xml
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PopularScience_19490901_0155_003_0060.xml
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PopularScience_19490901_0155_003_0061.xml
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PopularScience_19490901_0155_003_0062.xml
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PopularScience_19490901_0155_003_0063.xml
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PopularScience_19490901_0155_003_0064.xml
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Advertisement: POPULAR SCIENCE MONTHLY
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POPULAR SCIENCE MONTHLY
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PopularScience_19490901_0155_003_0065.xml
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MARYLAND DISTRIBUTORS
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MARYLAND DISTRIBUTORS
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PopularScience_19490901_0155_003_0066.xml
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59
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YOUNG DISTRIBUTING CO.
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YOUNG DISTRIBUTING CO.
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PopularScience_19490901_0155_003_0067.xml
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59
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STEVEN RICKY
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STEVEN RICKY
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PopularScience_19490901_0155_003_0068.xml
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PopularScience_19490901_0155_003_0069.xml
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PopularScience_19490901_0155_003_0070.xml
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PopularScience_19490901_0155_003_0072.xml
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Raymond E. Brandell
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Raymond E. Brandell
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PopularScience_19490901_0155_003_0073.xml
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65,66,67,68,69,70,71,72,73,74,75,76,77
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CLASSIFIED OPPORTUNITIES
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PopularScience_19490901_0155_003_0074.xml
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Duraclean Co.
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Duraclean Co.
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PopularScience_19490901_0155_003_0075.xml
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77
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Edmund Salvage Company
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Edmund Salvage Company
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PopularScience_19490901_0155_003_0076.xml
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PopularScience_19490901_0155_003_0077.xml
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PopularScience_19490901_0155_003_0085.xml
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87
87
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EMEROL MANUFACTURING CO., INC.
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EMEROL MANUFACTURING CO., INC.
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PopularScience_19490901_0155_003_0086.xml
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BERTON PLASTICS, INC.
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BERTON PLASTICS, INC.
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PopularScience_19490901_0155_003_0087.xml
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87
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GOLD BOND TIRE CO.
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GOLD BOND TIRE CO.
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PopularScience_19490901_0155_003_0088.xml
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PopularScience_19490901_0155_003_0089.xml
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PopularScience_19490901_0155_003_0090.xml
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90
90
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Beech-Nut GUM
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Beech-Nut GUM
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PopularScience_19490901_0155_003_0091.xml
article
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90,92
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I'd like to see them make...
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Simpler controls for direction lights. Instead of the control arm beneath the steering wheel, why not have a button set in the cross arm so it could be reached with a thumb?—Jack Gehring, Watertown, N. Y. Markers in film cartons. An adhesive tab with the type of film and speeds printed on it could be stuck to the camera to remind the photographer what film he was using—E. B. Geisendorff, Jr., San Antonio, Tex.
PopularScience_19490901_0155_003_0092.xml
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91
91
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HARLEY-DAVIDSON MOTOR COMPANY
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HARLEY-DAVIDSON MOTOR COMPANY
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PopularScience_19490901_0155_003_0093.xml
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92
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PLOMB TOOL COMPANY
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PLOMB TOOL COMPANY
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PopularScience_19490901_0155_003_0094.xml
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93
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PLYMOUTH
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PLYMOUTH
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PopularScience_19490901_0155_003_0095.xml
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94
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RADIO CORPORATION OF AMERICA
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RADIO CORPORATION OF AMERICA
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PopularScience_19490901_0155_003_0096.xml
article
95
95
The Voice of Science
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How to Listen to Science
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ALL you need to play a juke box is a nickel. You don’t need to know music. You don’t have to finger an instrument, or write music, or even read it, to listen or dance. And certainly nobody expects you to pass an examination in the complex process between the first clunk and the last note.
PopularScience_19490901_0155_003_0097.xml
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96
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NATIONAL CARBON COMPANY, INC.
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NATIONAL CARBON COMPANY, INC.
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PopularScience_19490901_0155_003_0098.xml
article
97
97
Science at Work
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Paving a big Gutter...
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[no value]
[no value]
[no value]
This big paving project would make a fine speedway—if it didn’t have a more important job. The giant ditch is the main canal of the Columbia Basin Project, soon to irrigate 1,250,000 acres of potentially fertile desert in Washington State. The life-giving water will be pumped from Lake Roosevelt behind Coulee Dam to a storage reservoir (PS, Aug. ’49, p. 156) and then will flow through this canal to the farm area.
PopularScience_19490901_0155_003_0099.xml
article
98
98,99,100,101,102,103,104
Automobiles
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Studebaker's New Aero Nose Reverses Styling Trend
Designers abandon boxy front for sharp streamlining; engineers add tuned springs to smooth rough roads.
Reverses Styling Trend
Aero Noses Waited Two Years
New Cars Smooth at Top Speed
Softening Springs Increases Rate
Transverse Movement Also Limited
[no value]
[no value]
Devon Francis
WHEN the late war was in its last months, the Studebaker Corp., pioneer automobile builder, called its designers into conference. The company’s top hands wanted a new car that would be radical enough to make the public whistle—and buy. The designers produced it.
PopularScience_19490901_0155_003_0100.xml
article
104
104
Radio and Electricity
[no value]
Foil-Carrying Balloons Find Bight Spot for TV Antennas
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[no value]
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BALLOONS not much bigger than the ones kids play with are now helping television service men find the right place for video antennas. The helium-filled Kytoonsⓣ actually carry a temporary antenna—strips of aluminum foil—up into the air to determine the height at which signals come in strongest.
PopularScience_19490901_0155_003_0101.xml
article
105
105
Inventions
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Paper Bazooka Kills Bugs
[no value]
[no value]
[no value]
[no value]
THIS bazooka fights in the never-ending war against bugs. Although made only of cardboard—an old mailing tube—it shoots down insects almost anywhere out of doors. With one shot, it can spread insecticide through the top of an apple tree or over an area of 1,000 square feet.
PopularScience_19490901_0155_003_0102.xml
article
106
106,107
Inventions
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New Ideas from the Inventors
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[no value]
[no value]
[no value]
Iron Can’t Scorch. You couldn’t scorch your clothing with this iron even if you left it right on the material. High-frequency electrodes under the table top create an electrostatic field between them and the iron. When the cloth is damp, it absorbs energy from the field and becomes hot.
PopularScience_19490901_0155_003_0103.xml
article
108
108
Inventions
[no value]
Machine Vends Roasted Coffee
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WHEN you get your coffee out of this machine, you’re sure it’s fresh—roasted right before your eyes while you wait. The Infra Roastⓣ holds 150 pounds of green coffee and dispenses it, freshly roasted, at the rate of a pound a minute. The coffee goes first into a cylinder oven (see sketch at right above).
PopularScience_19490901_0155_003_0104.xml
article
108
108
Inventions
[no value]
Glass Wool Muffles Generator
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[no value]
[no value]
[no value]
BEYOND 100 yards, you have to listen hard to hear this new 1½-kw. engine-generator above the chirp of a cricket. A labyrinth-like housing with a one-inch lining of Fiberglasⓣ absorbs most of the noise. For front-line military use, the generator was designed by the Engineer Research and Development Laboratories, Fort Belvoir, Va.
PopularScience_19490901_0155_003_0105.xml
article
108
108
Inventions
[no value]
TV Set Has Chairslde Control
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[no value]
[no value]
[no value]
THIS new RCA Victor projection-type television set features a remote-control box that lets you adjust brightness and contrast without leaving your chair. Usually available in the past only as custom equipment, the unit, with its connecting cord, permits continual adjustment of these controls from up to 25 feet from the set.
PopularScience_19490901_0155_003_0106.xml
article
109
109
Science at Work
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Mexico Gets Giant Diesel Generators
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[no value]
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SIX of the largest Diesel engines ever built in the Western Hemisphere are now generating electricity for Mexico City. The new Tacubaya plant has a string of Nordberg Diesels each producing 7,350 hp., or 5,150 kilowatts, at Tacubaya’s 7,600-ft. altitude. Each has 12 cylinders of 29-in. bore, with a crankshaft weighing one ton per foot of length.
PopularScience_19490901_0155_003_0107.xml
article
110
110,111
Science News
[no value]
MARCH OF SCIENCE
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[no value]
[no value]
[no value]
Vanishing Gas Traced. The fiery cross of gas above may lead to better electronic tubes filled with neon, argon, and helium. Their life is now limited because the gas gradually disappears as it is absorbed and permanently trapped in metal parts.
PopularScience_19490901_0155_003_0108.xml
article
112
112
New Products
[no value]
Glass, Concrete Make Wall Panels
[no value]
[no value]
[no value]
[no value]
GLASS is being used in a new kind of wall that is thinner and cheaper, yet offers better protection against weather. The new walls are sandwich panels, made of concrete with a “filling” of foamed-glass bricks. The concrete-glass sandwiches can be made on the job in panels of any practical size.
PopularScience_19490901_0155_003_0109.xml
article
113
113
Aviation
[no value]
Platform Scale Feels Jet's Muscle
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[no value]
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[no value]
HOW to measure a jet’s thrust—the equivalent of horsepower in a piston-engined plane—without actually flying the plane has been neatly solved by Grumman engineers. They literally put the plane on the stand—a new device called a thruststand. The plane is towed up a ramp and imprisoned on a movable platform.
PopularScience_19490901_0155_003_0110.xml
article
114
114,115,116,1174
Science at Work
[no value]
U. S. Starts Making Gasoline From Coal
Missouri plant turns out 200 to 300 barrels a day by squeezing hydrogen into coal under terrific pressure.
To Try Other Process
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[no value]
[no value]
AT LONG last the United States has begun tapping its vast coal resources for synthetic gasoline. From 200 to 300 barrels of gasoline are being produced daily at a demonstration plant built and operated by the U. S. Bureau of Mines. It wrings gasoline from coal by an improvement on a German process.
PopularScience_19490901_0155_003_0111.xml
article
118
118
Aviation
[no value]
5,000-Hp. Jet Unveiled
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[no value]
[no value]
[no value]
THE veil of secrecy shrouding one of the hottest U. S. jet engines, the Westinghouse J-34, has been lowered enough to give you this inside peek. The 10-foot-long unit produces more than two and a half pounds of thrust for each of its 1,200 pounds of engine weight—equivalent to 5,000 hp. at high jet speeds.
PopularScience_19490901_0155_003_0112.xml
article
118
118
Radio and Electricity
[no value]
Missiles Get Mobile "Ears”
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[no value]
[no value]
[no value]
NAVY scientists won’t miss any of the vitally important data being radioed down from sky-searching rockets. Their latest telemetering system has its receivers set up in a trailer that can be moved wherever reception is best. The trailer (left) contains two complete stations to handle the 60 messages at once sent from the research rockets.
PopularScience_19490901_0155_003_0113.xml
article
119
119
Science News
[no value]
New Plastics Conduct Current
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[no value]
[no value]
[no value]
PLASTICS, widely used as electrical insulators, now offer promise of filling new jobs in the electric and electronic fields. A new class of plastic materials under development by Markite Company, New York City, and Naval Ordnance Laboratory, makes it possible to mold plastic forms exhibiting a wide range of conductivities.
PopularScience_19490901_0155_003_0114.xml
article
120
120,121,122
[no value]
[no value]
New Crosley Roadster
Strips Down to Racer
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CROSLEY’S new, underslung roadster is designed to lead a double life. Strip off the windshield, headlamps, bumpers, top, and spare wheel—and you’ve got a racer. Christened the Hotshotⓣ and priced at less than $1,000, the roadster-racer represents Crosley’s answer to the small sports cars coming from Europe.
PopularScience_19490901_0155_003_0115.xml
article
123
123
Inventions
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"Tan” Meter Times Sunbaths
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[no value]
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[no value]
You can sun-broil yourself to just the right shade tan with a sun-tan meter developed by Hoyt S. Scott, GE engineer. The model above, for big indoor solaria, projects on a screen the image of a dial (inset) that tells how long you must sunbathe for one “minimum perceptible erythema” — a faint pink sunburn. It uses photocells, like those in photographic exposure meters, plus a complex set of filters and a fluorescent screen to limit measurements to the “colors” causing tanning.
PopularScience_19490901_0155_003_0116.xml
article
123
123
[no value]
[no value]
Hearing Aid Sticks to Head
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[no value]
[no value]
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ADHESIVE like that on cellulose tape holds this Acousticonⓣ hearing aid in place. Eliminating the pressure headband formerly used, the new device is less conspicuous and more comfortable to wear. The small button transmits sound by conduction through the skin and bones of the skull.
PopularScience_19490901_0155_003_0117.xml
article
123
123
[no value]
[no value]
Tower Lifts Worker to Ceiling
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[no value]
A PORTABLE elevator raises workmen high enough to clean light fixtures on a 23-foot ceiling, yet telescopes down low enough to pass through a narrow, seven-foot door. The Hydro-Liftⓣ, made by Safway Steel Products, Milwaukee, is raised by a hydraulic pump operated manually from the platform.
PopularScience_19490901_0155_003_0118.xml
article
123
123
[no value]
[no value]
Rays Dry Hands, Kill Germs
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[no value]
[no value]
[no value]
You still have to wash your hands yourself, but they may be dried automatically when placed under the Electronic Towelⓣ. A photoelectric cell starts off infrared units to heat the hands, a powerful hot-air blower, an ultraviolet-ray lamp to kill germs— and a counter to record the towel’s use.
PopularScience_19490901_0155_003_0119.xml
article
124
124,125
[no value]
[no value]
Sonic Models Predict Tricks of Latest Jet
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[no value]
[no value]
Andrew R. Boone
WHEN Tony LeVier, Lockheed’s chief test pilot, whipped the XF-90 through its first flight recently, he wasn’t much surprised by its tricks. Six miniature replicas of the Air Force’s new needle-nosed jet had already told him what to expect.
PopularScience_19490901_0155_003_0120.xml
article
126
126,127,128
PS Features
[no value]
How They Put Up a New Skyscraper
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[no value]
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[no value]
WHIRRING like cicadas on a hot summer’s day, with amplified metallic voices, riveting hammers are assembling more than 13,000 tons of steel for the framework of the United Nations’ 42-story Secretariat Building in New York City. Familiar to steel men but ever new to spectators, the drama of flinging a tower at the sky is caught by the camera of a POPULAR SCIENCE photographer on these pages.
PopularScience_19490901_0155_003_0121.xml
article
129
129
Automobiles
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New Bus Lets Riders See Sights
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DRIVER’S-SEAT vision for all 43 passengers is the goal of this Scenicruiserⓣ bus now under test by Greyhound. The raised rear compartment is fitted with a curved windshield and safety-glass roof panels, glareproofed for sunny weather. At extreme rear, an eight-seat, semicircular lounge section faces observation windows that curve clear across the bus.
PopularScience_19490901_0155_003_0122.xml
article
129
129
Science News
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Magnet to Curve Cosmic Rays
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SEVENTY tons of carefully forged and machined steel form the core of a giant magnet (right) that nuclear scientists will use to bend cosmic rays. The magnet is part of a new pressurized cloud chamber being built at Brookhaven National Laboratory to learn more about the mysterious, powerful rays from outer space.
PopularScience_19490901_0155_003_0123.xml
article
129
129
New Products
[no value]
Refrigerator Uses Drawers
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[no value]
[no value]
[no value]
You needn’t dig for items in the back of this new True-Zoneⓣ refrigerator. Instead of a door, it has drawers like a filing cabinet. The flat Formicaⓣ top, 36 in. high, adds kitchen work space. Drawers have rustproof slides and nylon rollers that need no oiling.
PopularScience_19490901_0155_003_0124.xml
article
129
129
Inventions
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Combine Cools Driver
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[no value]
[no value]
[no value]
WHEN the mercury soared over 90 in his Kansas wheatfield, farmer John Blackwell added a new attachment to his combine—a cooling blower fan. Shown below, it shoots fresh air down through a hole in an improvised roof onto the operator. A belt connected to the combine’s elevator sprocket drives the fan.
PopularScience_19490901_0155_003_0125.xml
article
130
130,131,132,133,134,135
PS Features
[no value]
New Generator Hurls Life-Size Lightning
Engineers wield man-made thunderbolts in awe-inspiring tests of electric devices.
[no value]
[no value]
Alden P. Armagnac
IF LIGHTNING struck within a few feet of you, and you were lucky enough to stay alive, what would it look and sound like? Standing behind protective wire grating in a hangarlike building at Pittsfield, Mass., you can safely learn the answers.
PopularScience_19490901_0155_003_0126.xml
article
136
136
Photography
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Hot Camera Tests Jet Metals
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[no value]
A NEW instrument shows metallurgists how alloys act at the high temperatures in jet and rocket engines. The device is a camera with a built-in electric furnace—shown disassembled above, and in use with an X-ray generator at right. It takes X-ray shadow pictures of the arrangement of atoms in the heated test specimen.
PopularScience_19490901_0155_003_0127.xml
article
136
136
Science at Work
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Glass Smock Stops Atom Rays
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[no value]
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[no value]
DECONTAMINATION crews in an atomic war might wear glass clothing to shield them against deadly rays. The smock at right above, made of lead-glass fiber, gives better protection than the apron of leadfilled rubber at left—yet weighs only two ounces more.
PopularScience_19490901_0155_003_0128.xml
article
136
136
[no value]
[no value]
Echo Room Helps Stop Noise
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[no value]
IT TAKES a noisy room to learn how to make one that’ll be quiet. So Johns-Manville engineers test soundproofing materials in a two-story-high concrete room that creates sustained echoes (started by loudspeaker, top of photo). The reduction in echo time caused by different sound absoi'bers laid in the floor rates each one.
PopularScience_19490901_0155_003_0129.xml
article
137
137
Science at Work
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Aluminum Roof Strong us Steel
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[no value]
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SINCE mathematicians can’t figure out exactly how much weight a spherical shell will support before caving in, British engineers tested out such a structure by simply piling bricks on it. As a result, they claim that a new aluminum roof of this design is as strong as a similar steel one.
PopularScience_19490901_0155_003_0130.xml
article
138
138,139
Aviation
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10 Turboprops power Giant Flying Boat
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[no value]
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BRITAIN’S faith in flying boats and turboprop propulsion is borne out by the huge Saunders-Roe 10-engine Princessⓣ, now nearing completion at Cowes, Isle of Wight. Designed for flights across the Atlantic to South America, the SR/45 will accommodate 85 passengers, plus a crew of 14.
PopularScience_19490901_0155_003_0131.xml
article
140
140
Science at Work
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Lubricant Baked into Engine Parts
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[no value]
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[no value]
A NEW way to impregnate metals with graphite may prolong the life of your car and other machinery, too. Graphite, the slippery black form of the element carbon, is most commonly seen as the “lead” in lead pencils. It is also an excellent lubricant, widely used on door hinges and the like.
PopularScience_19490901_0155_003_0132.xml
article
141
141
PS Features
[no value]
Paul Bunyan Comes to Life
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[no value]
VISITORS to the 1949 Railroad Fair in Chicago can have a heart-to-heart chat with Paul Bunyan, legendary super-lumberjack of the North Woods. A complex array of microphones, sound-recorders, speakers, electric motors, and gears enables the giant figure to talk with passers-by and answer their questions.
PopularScience_19490901_0155_003_0133.xml
article
142
142,143,144
Aviation
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What's New in Aviation
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[no value]
[no value]
Jet Fights at Night. The revamped and elongated nose of this version of the famous Lockheed F-80 Shooting Star is packed with radar, enabling it to fly and fight in pitch darkness and under all weather conditions. Designated the F-94, it is the Connie’s Humps Test Gear.
PopularScience_19490901_0155_003_0134.xml
article
145
145
Automobiles
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Jeep Tells “American Story”
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THE specially built, $4,500 jeep at right is the first of 65 that will tour the world for the U. S. State Department to help spread the “Voice of America.” Power for its movie and radio equipment comes from a 3,000-watt generator. Long cables permit indoor movies to be shown in villages lacking electricity.
PopularScience_19490901_0155_003_0135.xml
article
145
145
Radio and Electricity
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Surgery Televised in Color
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THROUGH the television camera pictured here, hundreds of doctors at this year’s American Medical Association convention saw full-color close-ups of surgical operations. The telecast, by wire, requires only two TV men in the operating room—one to handle the camera boom and one at a monitor screen to focus the camera and blend the colors.
PopularScience_19490901_0155_003_0136.xml
article
145
145
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[no value]
Steel Fingers Tamp Roadbeds
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THE 12 steel fingers on this small handcar take the place of a dozen workmen in tamping ballast under railroad ties. One man operates the hydraulic tampers while another moves the car from tie to tie with a large handwheel geared to the wheels.
PopularScience_19490901_0155_003_0137.xml
article
146
146,147,148
Radio and Electricity
[no value]
Radio Beams Flag Planes
Fastest planes clocked by electronic equipment that can tick off flying time between exactly spaced radio walls.”
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[no value]
Herbert Johansen
STREAKING between two parallel radio beams that flare into space 11 miles apart, Air Force speedsters can now be timed automatically with an accuracy of 1/1,000 of a second. And they can fly as high as 30,000 feet while making their speed runs.
PopularScience_19490901_0155_003_0138.xml
article
149
149
New Products
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Lets In Sound Without Drafts
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[no value]
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[no value]
EVER have a hard time making yourself heard through a receptionist’s glass enclosure? Well, you won’t in the POPULAR SCIENCE office. A special frame built into the window (above) lets our receptionist hear a visitor speak in a normal tone, yet prevents drafts and germs from reaching her.
PopularScience_19490901_0155_003_0139.xml
article
149
149
Science at Work
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“Flying” Kitchen Tests Cakes
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Now they’re checking out cakes in this old Air Force high-altitude chamber. Home economists of Pillsbury Mills, Inc., Minneapolis, used it to test prepared cake mixes. A recipe that produces a perfectly baked cake in sealevel New York may give a leaden “failure” in mile-high Denver, for example, because of the change in atmospheric pressure.
PopularScience_19490901_0155_003_0140.xml
article
149
149
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Cabinet Top Resists Heat
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EVEN the accidental spilling of hot salad oil (as below) won’t mar the new, heat-resistant, plastic work surface used by Frigidaire on kitchen cabinets and electric water heaters. Called Vitalastⓣ, the grease- and acid-resistant finish is permanently bonded to steel by a special heat and pressure process to prevent buckling, and molded in one piece to eliminate crevices that catch food particles.
PopularScience_19490901_0155_003_0141.xml
article
149
149
New Products
[no value]
Mice Trap Themselves
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[no value]
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RESEMBLING a powder box, the container below is really a springless mousetrap. To set it, you raise a pin (barely seen at left) and move the rotating partition against a stop. This opens the door (shown partially open) at the side of the trap.
PopularScience_19490901_0155_003_0142.xml
article
150
150,151
PS Features
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Fitting the Glove to the Job
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[no value]
[no value]
[no value]
THE gloves a well-dressed worker wears these days are a far cry from those white kids your best girl wore at the Junior Prom. Strictly for protection on the job, work gloves can be pretty unusual looking, as shown in this assortment. Made of leather, nylon, asbestos, and rubber, they run the gamut from a woman’s flimsy nylon glove — used in the stocking industry to prevent the snagging of hosiery — to a strong, saddle-leather hand pad that safeguards handlers of sharp-edged materials and hot objects.
PopularScience_19490901_0155_003_0143.xml
article
152
152
Inventions
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Folding Crate Stops Thieves
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[no value]
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THIS collapsible metal crate, with a combination lock on its door, fills the Army’s prescription for one of its most bothersome peacetime headaches: pilferage of overseas shipments of soldiers’ household goods. Quickly set up from six panels of corrugated aluminum, the new “transporter” measures 8 ft. 6 in. long, 6 ft. 3 in. wide, 6 ft. 10/2 in. high.
PopularScience_19490901_0155_003_0144.xml
article
153
153
[no value]
[no value]
Earphone Takes Load off Pilot
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SMALL as a nickel, this miniature FlyFoneⓣ radio headset fits snugly into a pilot’s ear and brings signals directly to the eardrum. The maker, Air Market Associates, of Dallas, claims that the new device not only does away with the fatiguing pressure of old-type headsets but is 12 times more sensitive.
PopularScience_19490901_0155_003_0145.xml
article
153
153
Science at Work
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Helmet Helps Smog Study
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THE lady under this plastic headpiece is getting a dose of smog, made up of smoke and fog. Photoelectric cells attached to glassless goggles record blinks due to eye irritation. She reads a book to produce uniform reactions. The test is part of a study being made by Stanford Research Institute to find out more about the smog that often blots out Los Angeles’ sunshine.
PopularScience_19490901_0155_003_0146.xml
article
153
153
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[no value]
Plastic Guard Saves Face
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WHEN sparks fly, a worker wearing this new face shield is fully protected. A hard fiber top guards the forehead, while a non-inflammable, vinyl-plastic visor covers the face and neck. The turn of a knob adjusts the headband to fit any head. Made by the Mine Safety Appliances Co., of Pittsburgh, the helmet also offers protection against flying particles and splashing acids.
PopularScience_19490901_0155_003_0147.xml
article
153
153
[no value]
[no value]
Glasses Built into Football Mask
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THIS mask of cellulose acetate, with optically ground lenses, is science’s latest contribution to football. Intended for players who require glasses, the new mask covers the face from forehead to upper lip. Breather holes prevent fogging.
PopularScience_19490901_0155_003_0148.xml
article
154
154,155
Radio and Electricity
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Radar Takes Cover Under the "Big Top"
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RADAR, SO long kept under wraps for security reasons, now has gone under cover again. But this time it is “cover” in the literal meaning of the word — shelter to protect expensive and delicate equipment from the destructive elements of nature in extreme climates.
PopularScience_19490901_0155_003_0149.xml
article
156
156
Science at Work
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Water Stored Under Street
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THE city of Santa Monica, Calif., neatly solved the problem of where to store 5,000,000 gallons of drinking water by digging a reservoir under a wide, hilltop street. The pavement was ripped up and a trench 660 ft. long, 29 deep, and 50 wide was dug and lined with two feet of poured concrete.
PopularScience_19490901_0155_003_0150.xml
article
156
156
Inventions
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Ax is All-Purpose Tool
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[no value]
[no value]
[no value]
THIS ax tells almost everything about a tree — besides cutting it. The reverse edge has a circular cutter that brings a neat core out of the trunk for measuring growth rate. One-foot marks on the handle permit quick calculation of tree diameter. When handle, held erect at arm’s length, covers tree, distance from you to tree is same as tree’s height.
PopularScience_19490901_0155_003_0151.xml
article
156
156
New Products
[no value]
Crayon Tells Temperature
[no value]
[no value]
[no value]
[no value]
CRAYONS that tell how hot a piece of metal is are now available for temperatures from 130° F. to as high as 2,000°. A smear made with a Tempilstikⓣ starts to liquefy only at the temperature marked on the crayon. Used in welding, tempering, forging, and casting, the heat-sensitive crayons — and similar pellets and lacquer — are made by the Tempil Corp., of New York City.
PopularScience_19490901_0155_003_0152.xml
article
157
157
New Products
[no value]
Sawdust Bricks Burn Like Charcoal
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[no value]
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WALTER W. LETTS doesn’t look much like that mythical giant of a lumberjack, Paul Bunyan. Yet he has successfully imitated one of Paul’s tricks—running a sawmill backwards to make good logs out of waste. Letts turns waste sawdust into useful briquettes, finger-sized cylinders that can be burned like charcoal.
PopularScience_19490901_0155_003_0153.xml
article
158
158,159
Science News
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So Yon Think 32° Is Freezing?
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THE textbooks say pure water turns to ice at 32°F. But now GE researchers have proved the books are wrong. Absolutely pure water, they found, won’t freeze until you cool it down around 4° below zero! In a series of experiments at the General Electric Research Laboratory, Robert SmithJohannsen carefully cooled drops of water in a special apparatus (shown in drawing and photos at right) while he watched for ice crystals to form in the drops.
PopularScience_19490901_0155_003_0154.xml
article
159
159
New Products
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New Washer Squeezes Dry
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WATER is squeezed out of the family wash in almost the same way used by an old-fashioned laundress in the new automatic Bendix washer below. When this agitator type of machine finishes washing and rinsing, a vacuum is created inside the tub. This sucks the flexible plastic lining in, squeezing the wash damp-dry.
PopularScience_19490901_0155_003_0155.xml
article
160
160,161
PS Features
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These Firemen Jump to Work
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FROM the top of a mountain deep in a national forest, a lonely lookout slowly scans the neighboring slopes. Suddenly his eyes focus on a tiny puff of smoke. Within a few minutes a plane loaded with paratroopers heads for the fire. These paratroopers carry no guns.
PopularScience_19490901_0155_003_0156.xml
article
162
162,163,164,165,166
Automobiles
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Buick Slicks Up Its Biff Little Car
Out of production for nearly a year, the Special makes a new bid for a share of the auto market, offering increased safety and comfort.
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Beron Francis
A DOZEN years ago Buick automobiles broke into the country’s best-seller list with a “little” car tailored for the man who wanted something better at an in-between price. It was given the unimaginative name of “Special” and promptly became the bestknown vehicle in the company’s entire line.
PopularScience_19490901_0155_003_0157.xml
article
167
167
Automobiles
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Trailer “Treadmill” Tests Cars
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THIS British Bentley is deliberately dragging its feet so engineers can test the effects of prolonged acceleration. Since acceleration normally occurs quickly, the only way to get a good long look at what happens is to hold the car back while it tries to go faster. Here’s where the trailer comes in.
PopularScience_19490901_0155_003_0158.xml
article
167
167
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BB-Proof Lens Protects Eyes
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“SAFETY-GLASS” lenses that even an air rifle can’t shatter are now available for spectacles. In the demonstration above, a marksman sent a BB shot right through an ordinary lens, but could only crack the safety lens. Intended mainly for wear by children, the new lenses are a glass-plastic sandwich, like auto windows.
PopularScience_19490901_0155_003_0159.xml
article
167
167
Radio and Electricity
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Plastic Makes Strong TV Cabinet
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SEVEN men demonstrate the strength of this new all-plastic cabinet for a console television set by standing on it. The cabinet is molded in a single, 35-lb. piece by a huge shell-case press originally built for the Russian Government. Molded Products Corp., Chicago, produces it for a new 10-in.-screen Admiral set that retails for about $250.
PopularScience_19490901_0155_003_0160.xml
article
168
168,169
Science at Work
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New Tanks Hurdle Ditches
New Mercedes-Benz Powered by Diesel Engine
Cruise» on Land or Water
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PLAYING leapfrog and laying portable bridges, new British tanks demonstrated their ability to hurdle ravines and excavated “tank traps” in recent maneuvers. One turret-less type with ramps at each end fits itself into a gap up to 15 feet wide—and assault tanks then rumble to the attack over its back.
PopularScience_19490901_0155_003_0161.xml
article
170
170,171,172,173
Automobiles
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Gus Fixes a Traffic Rap
Smoky exhausts and expensive repair jobs usually go hand in hand, but the smoker a state cop drags in needs only the quick treatment.
He Didn't Knote It, He Says
Who Murdered Staunton?
Under Arrest
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[no value]
Martin Bunn
TROOPER Jerry Corcoran likes action. And that was exactly what he hadn’t been getting for the past few weeks. All the action he’d seen recently was his regular patrol. Corcoran was bored. In fact, he was more than bored. He was irritated. He sat his parked motorcycle just off the highway at an intersection, watching the late afternoon traffic outbound from the city.
PopularScience_19490901_0155_003_0162.xml
article
174
174,175
Automobiles
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Hints from the Model Garage
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Solvent Stays Clean. Harry Morse, of Oakland, Calif., suggests putting a screen in your parts-cleaning bucket when you’re taking down a unit. It lets dirt settle to the bottom and keeps it from being stirred up while you’re brushing parts.
PopularScience_19490901_0155_003_0163.xml
article
176
176
Automobiles
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Anchors Repair Aluminum Head
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IF THE water-circulating holes in an aluminum cylinder head have eroded away, lead-jacketed anchors used to set bolts in masonry (see upper right) will make a repair. Directly above, at the top, is an eroded head and below it one fixed in this manner.
PopularScience_19490901_0155_003_0164.xml
article
176
176
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Bell Guides Car into Garage
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MANY garages are so placed that you must tum a sharp curve while entering or leaving. W. E. Nichols, of Santa Monica, Calif., solved the problem as above. When the bumper strikes a spring-loaded cable stretched parallel to one side of the doorway, a pivoted lever attached to the cable turns on a snap switch, ringing a doorbell mounted in the garage.
PopularScience_19490901_0155_003_0165.xml
article
177
177
Automobiles
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Rear Deck of Special Car Raised Hydraulically
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NORMAN E. TIMBS, auto designer of Van Nuys, Calif., stands at the rear of his $10,000 ultra-streamlined car. The chassis is of tubular construction with independent rear suspension by means of a swing axle. Although the wheelbase is 117", the 2,300-lb. car is 210" long. A late-model Buick engine behind the driver’s seat powers the streamliner, The hydraulically lifted rear deck covers engine, gas tank, and spare wheel.
PopularScience_19490901_0155_003_0166.xml
article
177
177
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British Land-Rover Ruilt for Rrush Country
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DESIGNED for highway travel as well as work in rugged country, this vehicle built by the Rover Co., Ltd., a British concern, is powered by a 4-cylinder, 97.29 cu. in. engine of 50 hp. The transmission includes a transfer assembly that gives both twoor four-wheel drives and eight forward speeds.
PopularScience_19490901_0155_003_0167.xml
article
178
178
Automobiles
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Blinker Also Gives Work Light
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A traffic-warning signal and work light are combined in this repair lamp, made by Alden Products Co., Brockton, Mass. A blinking red signal faces traffic, a continuous white light illuminates the work area. For use, it’s opened as above and a 17' cord plugged into the cigar-lighter socket.
PopularScience_19490901_0155_003_0168.xml
article
178
178
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New Fabric Tops Convertibles
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FABRIC woven of Fiberglasⓣ yarns coated with Vinyliteⓣ resins is now being marketed as a material for covering convertible tops. Developed by Cordo Chemical Corp., Norwalk, Conn., the fabric doesn’t stretch or shrink and can be cleaned with soap and a damp cloth.
PopularScience_19490901_0155_003_0169.xml
article
178
178
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Visor Cuts Day or Night Glare
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BLUE-TINTED glass on this new automobile visor is said to offer glare protection from both sunlight and headlights. In addition, the transparent area allows you to see overhead traffic signals without neck-craning or crouching. Made by Knowles-Fisher Corp., Gowanda, N. Y., to fit most makes of cars, the visor is attached to the rain gutter with inconspicuous clamps.
PopularScience_19490901_0155_003_0170.xml
article
178
178
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Telescoping Clothes Rack Wedges Inside Auto
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MADE of two telescoping steel tubes, this clothes tree is kept in position by pressure against the roof and floor. Williams Mfg. Co., Anaheim, Calif., prices it at about $4 in black finish, $7.50 in chrome. The notched arm holds 20 hangers.
PopularScience_19490901_0155_003_0171.xml
article
178
178
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Spinner Twists Out of Way
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PRESSING a small button allows this steering-wheel spinner to be flipped down if you don’t want to use it. It clicks up again just as easily. In either position, the knob clears the horn ring. The spinner is made by the Santay Corporation, of Chicago.
PopularScience_19490901_0155_003_0172.xml
article
179
179
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Mechanics and Handicraft
How to Make Contour Maps Internally Carved Lamp Switches for Your Power Tools Hurry-Up Photography Build Your Own Intercom
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PopularScience_19490901_0155_003_0173.xml
article
180
180,181,182,183,184
PS Features
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How to Make Contour Maps
By following this simple method, you ca create a map of your land that will help you make the most of its features.
Determining Distances
Compass Keeps Map on Beam
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[no value]
Sheldon M. Gallayer
FITTING a house, or any other man-made feature, to a piece of land is like buying a suit of clothes—the tailor must know your special dimensions and contours before he can make it fit right. Only there’s no trying a house on for size, no taking it back for a second fitting.
PopularScience_19490901_0155_003_0174.xml
article
185
185,186,187
Home Mechanics & Handicraft
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Two-Way Lamp Displays Marine Carving
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Harry A. Zoback
YOU never have to feed the fish in this aquarium or worry about the cat snatching them for a quick snack. The aquarium lamp also serves a double purpose—a reading lamp and a night light. The fish, internally carved in plastic, are edge-lighted by a 7watt bulb in the base that throws a soft glow throughout the room.
PopularScience_19490901_0155_003_0175.xml
article
188
188,189
Home Mechanics & Handicraft
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Worktable Doubles as Outdoor Server
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Arthur C. Miller
INDOORS or out, you’ll find this rolling utility table an all-round work horse. During the winter, you can use it as a workshop table, kitchen table, or snack server. In warm months, it can be trundled outdoors. Its electrical connection may be used either to prepare meals or power a hand grinder, drill, or soldering iron.
PopularScience_19490901_0155_003_0176.xml
article
190
190
Home Mechanics & Handicraft
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Salt Box Built of Scrap Wood
Rod Aids Bike Beginner
Bobber Goes Down to Fish
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PARTS of an old orange crate provided all the stock needed to build this copy of an Early American salt box. Outside the kitchen, it’ll hold gloves, keys, or cigarettes. You can build it with hand tools by altering the design to a straight front and a butt joint at the bottom instead of the rabbet.
PopularScience_19490901_0155_003_0177.xml
article
191
191
Home Mechanics & Handicraft
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Brontosaurus Guards Desk Box
Spring-Powered Reel Roes Your Fishing for You
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ONE of the largest of the dinosaurs, the brontosaurus, is carved in miniature to decorate this utility desk box. The recessed base holds cellulose tape and thumbtacks. I used 2" redwood with the grain running the length of the figure. This wood carves easily and needs only a coat of shellac to finish it.
PopularScience_19490901_0155_003_0178.xml
article
192
192
Home Mechanics & Handicraft
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Tray Chest Keeps Toys Together
Extension on Midget Plane Gives Good Grip
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THE myriad bits and pieces of a youngster’s construction set won’t get scattered and lost so easily if you build him this playroom toy chest. Instead of drawers, it has six removable trays that may be slipped from the rack and carried to any part of the house.
PopularScience_19490901_0155_003_0179.xml
article
193
193
Mechanics & Shopwork
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Steel Clip Aids Lineman
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A SMALL steel clip, fitted over a lineman’s climbing belt, will help prevent injury if his spikes slip. Should he start sliding, the points of the clip—mounted on the inner side of the belt—hold the belt to the pole and stop the fall. All parts of the assembly except the spring are 16-gauge stainless steel.
PopularScience_19490901_0155_003_0180.xml
article
193
193
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Toothbrushes and Holder Protected by Tumbler
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WHEN a tumbler is placed on this bracket, both your toothbrushes and their holder are protected from dust. Cut the parts from hardwood and stain or wax them before assembly. The part that supports the dowel is attached by two countersunk wood screws through the back.
PopularScience_19490901_0155_003_0181.xml
article
193
193
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Reel Holds Sounding Line
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WATER depths to 100' can quickly be measured with the Depthometerⓣ. When the brake screw is released, a weight takes the line to the bottom and the depth is read on the line. Then the water-resistant line, marked at 1' intervals, is reeled in and the brake reset.
PopularScience_19490901_0155_003_0182.xml
article
194
194,195,196
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How Experts Carve Solid Models
Jet Balloon Propels New Toy
Paint Roller Holds the Paint
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EXPERIMENTAL planes usually take shape first as scale models, possibly in several forms. Though ornamental, their purposes are entirely practical. By examining them, engineers can clear up many design points long before the real plane hits the air.
PopularScience_19490901_0155_003_0183.xml
article
197
197
PS Features
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Dentist Builds Super Models
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TURNING out unusual miniatures—from guns to grandfather clocks—is the hobby of Dr. Elmer McKeen, a Huntington Park, Calif., dentist. Among the models that have come from his workship to date are a scale replica of Big Bertha, Germany’s World War I monster railroad cannon, tiny pianos, the boiler and engine of a tugboat, and naval guns.
PopularScience_19490901_0155_003_0184.xml
article
198
198
What's Your Ingenuity Quotient?
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What's Your Ingenuity Quotient?
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Flue Heat Prevents Flu. After insulating the heater pipes in my basement, I found I had done too good a job. The basement remained downright cold, threatening me with pneumonia. But lots of heat was still going out the smoke pipe. To save some of this, I wired a fan in parallel with the oilburner motor and set it up facing the pipe.
PopularScience_19490901_0155_003_0185.xml
article
199
199
Home Mechanics & Handicraft
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Handsome Fruit Bowl Shaped of Embossed Plastic
Rocking Boat Pumps Out Bilge
Typing Guide Helps Beginners
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How fast can you drill eight holes in a board and set in short dowels? That’s just about how long it will take you to make this fruit bowl. Virtually the only work done on the plastic is finishing the edges; you can do the shaping in half a minute. A sheet of embossed ⅛" Plexiglasⓣ 12" by 12" was used for the dish shown.
PopularScience_19490901_0155_003_0186.xml
article
200
200,201,202,203,204
Mechanics & Shopwork
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Making Hopper Joints With Power Tools
It takes some figuring to set table, gauge, or jig, but machines then make taper cutting rapid and uniform.
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[no value]
Edwin M. Love
IF YOU consider tapering as a single operation, it’s easy to see how machines take the labor out of slanting the edge of a board. Set the table, fence, or gauge, and the machine does the rest. But the real advantage of power tools lies in the fact that you hardly ever want a single' taper, for one-legged tables and chairs are almost as rare as onesided boxes.
PopularScience_19490901_0155_003_0187.xml
article
205
205
NEW TOOLS
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NEW TOOLS
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Mortise Cut with Drill. Here is an adapter that brings your mortising chisel and electric drill together to form a mortising tool that’s portable. Adapter and chisel can be fitted to a drill of any size in a matSaw Frame Resists Twist. The frame back of this hacksaw consists of a single piece of steel tubing.
PopularScience_19490901_0155_003_0188.xml
article
206
206,207,208
Inventions
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Security Switches Make Power Tools Safer
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Will Thomas
IF YOU operate small workshop machines, you must have seen how accidents begin. Maybe a drill jams, a clamp works loose, or a holder was improperly tightened. You see the accident begin, and you see it happen, but you can’t prevent it. With both hands busy, you can’t reach the motor switch.
PopularScience_19490901_0155_003_0189.xml
article
209
209,210,211
Mechanics & Shopwork
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Filing Rest Does Small Milling Jobs
Speedily set up, the rest is still capable of highly accurate shaping. The chucked work is locked stationary when a flat is being filed.
New Compound-Action Pliers Lock onto Work
Gauge Sets Mortising Chisel to 1/16" Clearance
Roller Backs Up Jigsaw Blade
Table Has Built-in Fan
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HERE’S an unusual but extremely useful lathe accessory. Set up in the compound rest in a matter of seconds, it helps you file accurate flats, squares, hexes, and other polygons on chucked work. During filing the work is locked by the indexing pin or the back gears.
PopularScience_19490901_0155_003_0190.xml
article
212
212,213
NEW SHOP IDEAS
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NEW SHOP IDEAS
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Drill-Press Chains. In our school shop we’ve found good use at the drill press for three lengths of light chain. One keeps the chuck key from straying, and another does the same for the cutting-oil can. The third, protected with a spring (arrow), stops the table if the clamp is carelessly loosened.
PopularScience_19490901_0155_003_0191.xml
article
214
214,215
Keeping the Home Shipshape
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Keeping the Home Shipshape
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PopularScience_19490901_0155_003_0192.xml
article
216
216,217
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PHOTO IDEAS AND EQUIPMENT
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Enlarger Reduces. One-to-one, or smaller, prints may be made with an Omega D-IIⓣ enlarger by increasing the distance from film to lens as shown in the above photo. In the top of a cardboard box, cut a hole large enough to accommodate the negative. Place the negative carrier on the box top and slip box and carrier under the condensers.
PopularScience_19490901_0155_003_0193.xml
article
218
218,219,220
Photography
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Rush Those Photos
Ever wonder how news photographers make prints so quickly? You can do the same—for fun or profit.
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[no value]
Kenneth M. Swezey
IN PHOTOGRAPHY, speed is spelled with a dollar sign. A photo developed and printed in a matter of minutes is often worth money. If you work fast, a shot with top news value will find a welcome from your newspaper.
PopularScience_19490901_0155_003_0194.xml
article
221
221
New Products
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Boat Kits Designed for Home Assembly
Rubber Clears Wheel of Mud
Plug Drains Garden Sprayer
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KITS of prefabricated boat parts—for craft ranging from an 8' dinghy to a 23' cabin cruiser—are offered by U-Mak-It Products, Marine Division, of New York City. Each package includes necessary screws, bolts, glue, seam compound, and basic fittings, but no ornamental hardware.
PopularScience_19490901_0155_003_0195.xml
article
222
222,223,224,225,226
Radio and Electricity
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Intercoms Save Von Steps in Home, Office, Shop
Take your pick of a minimum tubeless circuit, an instant-heating battery job, or a heavy-duty AC-DC unit.
Battery-operated Intercom
Tubeless Intercom
AC-DC Unit
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[no value]
[no value]
IF YOU live or work in more than a couple of rooms, the question you may well ask yourself is not whether you need an intercom but what kind of intercom you need. These tireless servants run your errands faithfully to save you countless steps. At home they make it unnecessary to shout from cellar to attic; at work they lighten the load on telephone extensions and get your message through fast.
PopularScience_19490901_0155_003_0196.xml
article
227
227
NEWS IN ELECRONICS
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NEWS IN ELECRONICS
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Unit Modernizes Old TV Sets. If you have an early TV receiver that tunes to only 3 or 5 channels, this remote control unit will help bring it up to date. Designed for use with any type of receiver, the unit provides tuning on all channels. It turns the set on and off, tunes in stations, and controls contrast and brightness from positions up to 50' away.
PopularScience_19490901_0155_003_0197.xml
article
228
228
Mechanics & Shopwork
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Brass-Railed Clock Shelf
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A HANDSOME mantel clock deserves a handsome mantel. If you have the clock and not the mantel, this brass-railed shelf offers a happy substitute. Select stock to harmonize with the clock case—mahogany, black walnut, or other cabinet wood. Black walnut was the choice for the shelf shown.
PopularScience_19490901_0155_003_0198.xml
article
229
229
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Insert Prevents Shocks
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A BUTTON-SHAPED flexible insert, pressed permanently into a light socket, prevents shocks to probing fingers. The brass center ring makes contact only when a bulb is screwed in but breaks the circuit when the bulb is removed. Shock Stopperⓣ is manufactured by Container Specialty Co., Cleveland, and is priced at three for 25 cents.
PopularScience_19490901_0155_003_0199.xml
article
229
229
Home Mechanics & Handicraft
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Wallpaper Provides Patterns
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FOR engraving tumblers with a hand grinder, you’ll find a wide variety of designs in a wallpaper sample book. Cut out the pattern, leaving enough margin to encircle the inside of the glass and to rest on the bottom. Stuff cloth inside to hold the design in place while engraving.
PopularScience_19490901_0155_003_0200.xml
article
229
229
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Seams Ripped on Machine
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INSERTED instead of the needle, this knife-edged attachment rips seams just about as fast as they were sewn in by the machine. The ripper penetrates material by spreading the weave without cutting the cloth. Machine-sewn seams, more taut than the material, resist the ripper’s pressure and are cut.
PopularScience_19490901_0155_003_0201.xml
article
229
229
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Metal Clips Hold Hat Cord
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THIS simple hat cord, secured to the sweatband by two metal clips, keeps your hat in place in wind or weather. It can be transferred from one hat to another, since the clips are slipped over the band and held by pressure when the hat is worn. Bend up the clips from tin-can stock and use plastic cord.
PopularScience_19490901_0155_003_0202.xml
article
229
229
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Erasers Make Model Sockets
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FLASHLIGHT sockets for models can be made from ordinary slip-on pencil erasers. Cut off enough of the rubber so only the metal part of the bulb is covered. Punch a hole in the side and another in the end. Push contact wires through the side and end, looping them as shown in the drawing above.
PopularScience_19490901_0155_003_0203.xml
article
230
230
Home Mechanics & Handicraft
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Rig Tips Boats for Cleaning
Pipe Couplings Space Cleat
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SKIDDING a rowboat ashore to tip, drain, ind clean it can be quite a chore, especially if one man has to do the job. A simple rig that will do everything but clean the boat for you can be built of scrap lumber and a couple of saplings. The one pictured in use at a fishing camp near Remer, Minn., is being handled by two men.
PopularScience_19490901_0155_003_0204.xml
article
231
231
Mechanics & Shopwork
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Bracket Mounts Outboard Motor to Power Canoe
Fine Clears Fouled Anchor
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No HOLES need be drilled nor any other changes made in a canoe to mount this motor bracket. It’s sturdy enough to handle a 1½-hp. motor easily, and it can quickly be attached or removed without tools. Two wing nuts and a C clamp hold it securely.
PopularScience_19490901_0155_003_0205.xml
article
232
232
Home Mechanics & Handicraft
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Tube Starter Is Fire Alarm
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FLUORESCENT-TUBE starters that have glass-enclosed heat-sensitive switches may be converted to small but reliable thermostats. One excellent application for them is in a homemade fire-alarm system that will protect your home, shop, or garage.
PopularScience_19490901_0155_003_0206.xml
article
232
232
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Drill Press Used as a Jigsaw
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IN A pinch you can rig up your drill press to handle small jigsawing jobs. The stunt is made possible with a coarse spiral blade held tight as it spins. Though designed for reciprocating motion, these blades will actually spin through wood as thick as ⅞.
PopularScience_19490901_0155_003_0207.xml
article
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Mixer Motor Gets New Jobs
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You can convert your kitchen mixer to a wider range of jobs around the house with the Toolzonⓣ, a simple adapter that fits most mixers. Attachments include a drill chuck, buffer, and a flexible-backed sanding disk coated with aluminum oxide. The bonnet of the buffer is ¾" wool pile.
PopularScience_19490901_0155_003_0208.xml
article
233
233
Home Mechanics & Handicraft
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Tape Binds Edges of Papers
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EDGES of blueprints, maps, sheet music, and other frequently handled papers can be kept from fraying by binding with tape. A tape dispenser produced by Minnesota Mining & Mfg. Co., St. Paul, Minn., is designed especially for this job. It can also be used to reinforce the fold in sheet music and other papers.
PopularScience_19490901_0155_003_0209.xml
article
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233
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Shop Tools Emboss Plastic
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ANY plastic that softens when heated can be decorated by embossing with countersinks, end mills, and other common workshop tools. Above, a ½" end mill is being used to emboss a piece of ¼" Plexiglasⓣ. This became the drawer pull shown below. For such work, chuck the tool in a drill press, heat the plastic until soft, rest it on a piece of glass or polished metal on the drill press table, and bring the tool down against the plastic by operating the spindle feed.
PopularScience_19490901_0155_003_0210.xml
article
233
233
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Muffler Quiets Bicycle Bell
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ROUGH paving often causes a bicycle bell to jingle. Here’s a muffler that will stop this. It consists of rubber tubing fitted on an aluminum extension bolted to the regular operating lever. The extension is shaped so the rubber rests against the bell while the latter is not in use.
PopularScience_19490901_0155_003_0211.xml
article
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234,235
PS Features
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Experimenting with Polarized Eight
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WHY will a pair of polarized sunglasses protect your eyes from glare at the beach? What happens when you use a polarizing filter on a camera? How does a polarized visor improve your driving vision? All these useful devices rely on polarized light.
PopularScience_19490901_0155_003_0212.xml
article
236
236
Automobiles
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Motorbike Has Two Speeds
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ADDING a two-speed model of the Britishmade Albion transmission to a standard Whizzer bike motor increased the top speed and added power on the getaway, according to Bob Pfetzing, of Moline, Ill., who built the hybrid machine. Clutch and throttle controls are hand operated, as on a standard Whizzer.
PopularScience_19490901_0155_003_0213.xml
article
236
236
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Wire Collets Hold Tiny Drills
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SMALL collets that’ll equip a hand grinder to hold drills from Nos. 60 to 80 may be made from paper clips and cellulose tape. From small clips, cut ¾" lengths. Point the ends on a grinding wheel to deburr them. Lay the pointed wires on a magnet, as shown in the sketch, and press a strip of tape over them.
PopularScience_19490901_0155_003_0214.xml
article
236
236
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Magnets Hold Memos
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THIS 14" by 18" magnetic bulletin board for the home comes with six small magnets that anchor memos and shopping lists to the board. A magnetic pencil holder also is included. Magnetic Merchandising, Inc., New York City, prices the board at about $2.
PopularScience_19490901_0155_003_0215.xml
article
237
237
Home Mechanics & Handicraft
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Cot Boxed In to Muke Day Bed
Springs Provide Muscle for Turning Mattress
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A FEW pine boards and hand tools transformed an inexpensive iron cot into the day bed pictured above—a welcome addition to a playroom, porch, or summer cottage. The boards make a framework that fits over and conceals the cot. The first step is to cut down the cot, if it needs it.
PopularScience_19490901_0155_003_0216.xml
article
238
238
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Bastes Meat Automatically
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WORKING on the percolator principle, the Percomatic Basterⓣ intermittently squirts fluid from the bottom of a roaster over meat being cooked. The four-piece unit, made by the Paul V. Shell Co., Kansas City, is placed on the bottom of the pan with the foot strap under the roast or fowl.
PopularScience_19490901_0155_003_0217.xml
article
238
238
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Joists Provide Storage Space
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SHELVES built between the ceiling joists in my basement workshop provide additional storage space for small items. I use cheese boxes to hold the articles. The boxes are numbered and indexed, making it easy to find the desired object. This method of storage in otherwise wasted space provides a drier place than nearer the basement floor, and also keeps the articles from children.
PopularScience_19490901_0155_003_0218.xml
article
238
238
Home Mechanics & Handicraft
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Hook Lifts Small Boat
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FOR easy handling of the bow of my runabout, I made a small bale hook that fits in the towing eye on the stem. It’s a short length of 5/16" brass rod, bent as shown, and threaded on the straight end. A nut holds the rod to the handle. Such a hook is especially useful when the boat is fitted with detachable launching wheels (PS, July ’49, p. 211)
PopularScience_19490901_0155_003_0219.xml
article
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238
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Footrest Eases Shoveling
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PUSHING a shovel into the earth can become tiresome because of the sharpness of the edge on which your foot presses. A comfortable foothold may be made by riveting to the shovel edge a strip of T- or L- shaped metal as shown in the photo. I cut a piece from an old sled runner and bent it to match the contour of the shovel.
PopularScience_19490901_0155_003_0220.xml
article
239
239
PS Features
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Radar Reads Rain Signs
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WAR-SURPLUS radar equipment is playing a big part in the mechanization of farms in the El Paso, Illinois, area. Installed as part of an experiment in inducing rain artificially, the radar scope has shown that the course and speed of approach of rain clouds can be plotted very accurately.
PopularScience_19490901_0155_003_0221.xml
article
240
240
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Electric Fenee Is Portable
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SITTING on top of the ground on crosspiece feet, these fence posts can quickly be set up or moved to a new location. Wire can be attached or removed without tools. The post is placed so that the slot in the insulator parallels the wire. Then the post is turned 90°, locking the wire in the plastic insulator.
PopularScience_19490901_0155_003_0222.xml
article
240
240
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Grain Elevator Loads Hay
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ON THIS Iowa farm, a belt conveyor—ordinarily used to move grain—is also put to work transferring bales of hay from truck to barn. The bales are merely turned at an angle and dropped on the moving belt.
PopularScience_19490901_0155_003_0223.xml
article
240
240
Home Mechanics & Handicraft
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Rake Unloads Its Leaves
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PULLING a wire at the top of this rake’s handle scrapes leaves and trash off the teeth. To make it, notch one edge of a sheet of aluminum to suit your rake. Mount it as shown, using a piece of spring steel and a butt hinge. The wire is attached to an angle iron riveted to the aluminum.
PopularScience_19490901_0155_003_0224.xml
article
240
240
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Rod Supports Garden Tray
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A METAL disk about 1' in diameter—a heavy aluminum pie pan will do— and a iron rod at least 2' long made this tray. Drill a hole in the center of the disk. Thread one end of the rod and sharpen the other for sticking in the ground. Washers and nuts threaded on the rod hold the tray.
PopularScience_19490901_0155_003_0225.xml
article
240
240
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Farm Gate Is Ornamental
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BESIDES improving the appearance of a farm, a barnyard gate of this type is “stock tight.” The closely spaced pickets keep in pigs or chickens should they escape from their pens.—A. M. Wettach, Mt. Pleasant, la.
PopularScience_19490901_0155_003_0226.xml
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241
241
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RAY-O-VAC COMPANY
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RAY-O-VAC COMPANY
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PopularScience_19490901_0155_003_0227.xml
article
242
242
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Target Scorer Ends Disputes
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THERE’D be fewer arguments over rifle scores with this Eze-Scorerⓣ, a simulated bullet in a plastic magnifier. Inserted in a bullet hole, it enlarges your view of target area so that the close scores become more readable. It comes in .22, .38, and .45 calibers.
PopularScience_19490901_0155_003_0228.xml
article
242
242
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Golf Ball Goes Nowhere
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You can improve your golf swing without teeing up or chasing balls with this practice device. Made by Taylor Products, of Detroit, it consists of a ball on the end of a springsteel arm that spins around on a ball-bearing spindle when the ball is hit.
PopularScience_19490901_0155_003_0229.xml
article
242
242
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Pole Holder Fits Boat Seat
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THIS new fishing-pole holder keeps the pole within quick reach of the fisherman as he rows the boat. Unlike most holders, which clamp on the stern, this fits under the seat, holding the upper part of the pole’s handle in a rubber ring while the lower part clamps into a spring clip.
PopularScience_19490901_0155_003_0230.xml
article
242
242
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Ice Box Keeps Minnows Alive
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FISHERMEN, long faced with the problem of keeping minnows alive for bait, can keep them happy and healthy for weeks in this new Ful-O-Lifeⓣ refrigerated minnow box. One side is a tank for the minnows, while the other holds a cake of ice. The ice keeps the water cooled to a point where it retains the oxygen required by the minnows to live.
PopularScience_19490901_0155_003_0231.xml
article
242
242
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New Bait Lures Lobsters
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FILLED with only two ounces of LobLure®, a new artificial lobster bait, this small, 6-inch-long basket is all that’s needed to replace the five pounds of dead and decaying fish normally required to lure a lobster. Under water, the bait, which comes in putty form, slowly dissolves, attracting the lobster to the trap.
PopularScience_19490901_0155_003_0232.xml
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243
243
[no value]
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EASTMAN KODAK COMPANY
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EASTMAN KODAK COMPANY
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PopularScience_19490901_0155_003_0233.xml
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244
244
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Advertisement
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PopularScience_19490901_0155_003_0234.xml
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244
244
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United States Plywood Corporation: WELDWOOD
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United States Plywood Corporation
WELDWOOD
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PopularScience_19490901_0155_003_0235.xml
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245
245
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MARVIN MACHINE PRODUCTS, INC.
[no value]
MARVIN MACHINE PRODUCTS, INC.
[no value]
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PopularScience_19490901_0155_003_0236.xml
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246
246
[no value]
[no value]
PORTABLE ELECTRIC TOOLS, Inc.
[no value]
PORTABLE ELECTRIC TOOLS, Inc.
[no value]
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PopularScience_19490901_0155_003_0237.xml
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246
246
[no value]
[no value]
O.F.Mossberq & SONS, INC.
[no value]
O.F.Mossberq & SONS, INC.
[no value]
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PopularScience_19490901_0155_003_0238.xml
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246
246
[no value]
[no value]
State Fair of Louisiana
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State Fair of Louisiana
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PopularScience_19490901_0155_003_0239.xml
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247
247
[no value]
[no value]
Ford
[no value]
Ford
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[no value]
PopularScience_19490901_0155_003_0240.xml
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248
248
[no value]
[no value]
The Lufkin Rule Co.
[no value]
The Lufkin Rule Co.
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PopularScience_19490901_0155_003_0241.xml
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248
248
[no value]
[no value]
Binks MANUFACTURING COMPANY
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Binks MANUFACTURING COMPANY
[no value]
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PopularScience_19490901_0155_003_0242.xml
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248
248
[no value]
[no value]
TIBBITS MFG. CO.
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TIBBITS MFG. CO.
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PopularScience_19490901_0155_003_0243.xml
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249
249
[no value]
[no value]
SHOPMASTER, INC.
[no value]
SHOPMASTER, INC.
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[no value]
PopularScience_19490901_0155_003_0244.xml
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250
250
[no value]
[no value]
Advertisement
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PopularScience_19490901_0155_003_0245.xml
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251
251
[no value]
[no value]
SHOPSMITH
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SHOPSMITH
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PopularScience_19490901_0155_003_0246.xml
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252
252
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Advertisement
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PopularScience_19490901_0155_003_0247.xml
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252
252
[no value]
[no value]
WARREN WASHERS CO.
[no value]
WARREN WASHERS CO.
[no value]
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[no value]
PopularScience_19490901_0155_003_0248.xml
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252
252
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BERTRUM T. ENGINEERING CO.
[no value]
BERTRUM T. ENGINEERING CO.
[no value]
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[no value]
PopularScience_19490901_0155_003_0249.xml
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253
253
[no value]
[no value]
Rockwell Manufacturing Company
[no value]
Rockwell Manufacturing Company
[no value]
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[no value]
PopularScience_19490901_0155_003_0250.xml
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254
254
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Advertisements
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PopularScience_19490901_0155_003_0251.xml
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255
255
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CHAMPION SPARK PLUG COMPANY
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CHAMPION SPARK PLUG COMPANY
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PopularScience_19490901_0155_003_0252.xml
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256
256,257
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GROBAN'S WAR SURPLUS SPECIALS!
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PopularScience_19490901_0155_003_0253.xml
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258
258
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Advertisements
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PopularScience_19490901_0155_003_0254.xml
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259
259
[no value]
[no value]
SNAP-ON TOOLS CORPORATION
[no value]
SNAP-ON TOOLS CORPORATION
[no value]
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PopularScience_19490901_0155_003_0255.xml
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260
260
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Advertisements
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PopularScience_19490901_0155_003_0256.xml
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261
261
[no value]
[no value]
HARRINGTON & RICHARDSON ARMS CO.
[no value]
HARRINGTON & RICHARDSON ARMS CO.
[no value]
[no value]
[no value]
PopularScience_19490901_0155_003_0257.xml
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261
261
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BROOKS
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BROOKS
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PopularScience_19490901_0155_003_0258.xml
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261
261
[no value]
[no value]
BARRON TOOL CO. Inc.
[no value]
BARRON TOOL CO. Inc.
[no value]
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[no value]
PopularScience_19490901_0155_003_0259.xml
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261
261
[no value]
[no value]
HOBART Brothers Co.
[no value]
HOBART Brothers Co.
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PopularScience_19490901_0155_003_0260.xml
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262
262
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Advertisements
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PopularScience_19490901_0155_003_0261.xml
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263
263
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MILLERS FALLS COMPANY
[no value]
MILLERS FALLS COMPANY
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PopularScience_19490901_0155_003_0262.xml
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263
263
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Advertisement
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PopularScience_19490901_0155_003_0263.xml
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263
263
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NATIONAL GYPSUM COPANY
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NATIONAL GYPSUM COPANY
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PopularScience_19490901_0155_003_0264.xml
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264
264
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Advertisements
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PopularScience_19490901_0155_003_0265.xml
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265
265
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Advertisements
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PopularScience_19490901_0155_003_0266.xml
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266
266
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Advertisements
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PopularScience_19490901_0155_003_0267.xml
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267
267
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Advertisements
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PopularScience_19490901_0155_003_0268.xml
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268
268
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Advertisements
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PopularScience_19490901_0155_003_0269.xml
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269
269
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[no value]
Advertisements
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PopularScience_19490901_0155_003_0270.xml
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270
270
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Advertisements
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PopularScience_19490901_0155_003_0271.xml
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271
271
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[no value]
C & H ELECTRIC Co.
[no value]
C & H ELECTRIC Co.
[no value]
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[no value]
PopularScience_19490901_0155_003_0272.xml
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271
271
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[no value]
MOLLY CORPORATION
[no value]
MOLLY CORPORATION
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[no value]
PopularScience_19490901_0155_003_0273.xml
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271
271
[no value]
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MUSTANG MOTORCYCLE CORP.
[no value]
MUSTANG MOTORCYCLE CORP.
[no value]
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[no value]
PopularScience_19490901_0155_003_0274.xml
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272
272
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Advertisements
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PopularScience_19490901_0155_003_0275.xml
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273
273
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[no value]
Advertisements
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PopularScience_19490901_0155_003_0276.xml
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274
274
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Advertisements
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PopularScience_19490901_0155_003_0277.xml
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275
275
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Advertisements
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PopularScience_19490901_0155_003_0278.xml
article
276
276,277,278,279
[no value]
[no value]
Aids to Morden Living
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[no value]
No Soggy Soap. One of life’s petty annoyances, that jelly-like mush on the bottom of a bar of soap, is eliminated by this holder. Made of Bakeliteⓣ to fit all soap dishes, the holder raises the bar of soap, permitting the water to flow away. The maker, H. P. Matson Co., of Akron, O., prices it at 10 cents.
PopularScience_19490901_0155_003_0279.xml
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276
276
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Advertisement
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PopularScience_19490901_0155_003_0280.xml
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276
276
[no value]
[no value]
WILSON-IMPERIAL COMPANY
[no value]
WILSON-IMPERIAL COMPANY
[no value]
[no value]
[no value]
PopularScience_19490901_0155_003_0281.xml
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276
276
[no value]
[no value]
ALSTO COMPANY
[no value]
ALSTO COMPANY
[no value]
[no value]
[no value]
PopularScience_19490901_0155_003_0282.xml
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277
277
[no value]
[no value]
BURGESS BATTERY COMPANY
[no value]
BURGESS BATTERY COMPANY
[no value]
[no value]
[no value]
PopularScience_19490901_0155_003_0283.xml
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277
277
[no value]
[no value]
x-acto
[no value]
x-acto
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[no value]
PopularScience_19490901_0155_003_0284.xml
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278
278
[no value]
[no value]
SMOOTH-ON MFG. CO.
[no value]
SMOOTH-ON MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19490901_0155_003_0285.xml
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278
278
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GENERAL ENGINES CO.
[no value]
GENERAL ENGINES CO.
[no value]
[no value]
[no value]
PopularScience_19490901_0155_003_0286.xml
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279
279
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[no value]
Patent Cereals Co.
[no value]
Patent Cereals Co.
[no value]
[no value]
[no value]
PopularScience_19490901_0155_003_0287.xml
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279
279
[no value]
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TREYCO PRODUCTS
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TREYCO PRODUCTS
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PopularScience_19490901_0155_003_0288.xml
article
280
280
Last minute news & notes...
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Last minute news & notes...
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The Editor
CHEAP CAR rumors are rife again, but don’t take them seriously.No big company plans even a stripped-down model, because:(l)glamour jobs sell better,(2)production has to be hitched to sales,(3)prices can be cut only peanuts-worth of raw steel,glass,rubber costs.
PopularScience_19490901_0155_003_0289.xml
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281
281
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Savage Arms Corporation
[no value]
Savage Arms Corporation
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PopularScience_19490901_0155_003_0290.xml
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282
282
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SOUTH BEND LATHE WORKS
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SOUTH BEND LATHE WORKS
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PopularScience_19490901_0155_003_0291.xml