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Popular Mechanics 1922-05
1679 visits
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Scientific American 1891-03-21
1633 visits
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Scientific American 1893-06-10
1522 visits
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Scientific American 1894-07-07
1333 visits
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Scientific American 1894-12-29
1296 visits
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Scientific American 1897-11-27
1247 visits
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Scientific American 1903-02-21
1749 visits
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Scientific American 1903-04-18
1254 visits
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Scientific American 1903-07-11
1384 visits
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Scientific American 1903-11-28
1265 visits
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Scientific American 1917-03-10
1457 visits
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Scientific American 1920-08-21
1633 visits
