1917年12月29日

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來自尼亞加拉河新增兩百萬馬力，參議院戰爭內幕披露，及更多

作者：Robert G. Skerrett

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大眾科學 Magazine Vol 117 Issue 26This article was originally published with the title “Two Million More Horse Power from the Niagara River, The Senate War Disclosures, and more” in 大眾科學 Magazine Vol. 117 No. 26 (), p. 489
doi:10.1038/scientificamerican12291917-489
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