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1913年11月22日

1分鐘閱讀

探討五角星，鯨魚正在消失嗎？以及更多

作者：約翰·P·羅賓遜

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More by John P. Robinson

This article was originally published with the title “To Strike the Pentagram, Is the Whale Disappearing ?, and more” in 大眾科學 Magazine Vol. 109 No. 21 (November 1913), p. 394
doi:10.1038/scientificamerican11221913-394

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