SUPERCAVITATION
Text: Supercavitation is a phenomenon by which an object travels almost frictionless with high velocities inside a gas bubble surrounded by a liquid [1]. So far, supercavitation has mostly been applied to military use. Steven Ashley. Warp Drive Underwater, 284:62-71, May 2001. http://www.sciam.com/article.cfm?articleID=000CA29B-0EA6-1C70-84A9809EC588EF21.
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