First Pedal-powered Submarine

choi

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Russian Scientists Invent Pedal-Powered Submarine. New Tang Dynasty
Television (NTDTV), Feb. 19, 2010.
http://english.ntdtv.com/ntdtv_en/ns_europe/2010-02-19/459724567566.html

Note: Coandă effect
http://en.wikipedia.org/wiki/Coand%C4%83_effect

※ 修改:．choi 于 Mar  7 13:22:01 修改本文．[FROM: 128.197.0.0]