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Scientific American, Vol. 43, No. 9 (1880) (1880)
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ng it an unobstructed path for a considerable dis- of speculation and provoked much discussion in mechanical Every house in Callao was shaken to its foundations, and 'tance. To produce this result, however, the beam of light and scientific circles as to the best: means of averting such every ship… … © 1880 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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