© Courtesy of the C. V. Starr East Asian Library, Columbia University.

Article
科學常識 爬山利器, Common Knowledge in Science. Useful Tools for Mountain Climbing.

Keywords: sports, science,

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左圖上為爬山之繩索繫車 The Left Picture Showings a Climbing Rope Bound to a Cart

Keywords: invention,

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下圖為越山船越山之情形 The Picture Below Shows a Mountain-Crossing-Boat Crossing the Canyon