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Tag
physical labor
Scientific American 1917-07-07
Photo sizes
S - small
(298 x 432)
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(410 x 594)
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(522 x 756)
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(634 x 918)
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(650 x 941)
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Information
Created on
Thursday 8 May 2008
Visits
1138
Tags
energy
,
exercise
,
heat
,
physical labor
,
work
Albums
General Magazines
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Science and Technology Magazines
/
Scientific American
A horsepower race: The man who does the most work wins this race.
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