air bubble

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Divers Made Decision That Prevented Certain 'Suicide'

Xisco Gracia survived 60 hours in air pocket after sending partner for help

(Newser) - A wise decision by two expert divers saved both of their lives, though one of them had to hold tight for 60 hours, 130 feet below the surface, experiencing hopelessness and hallucinations. The BBC reports on the extraordinary ordeal of Xisco Gracia, who was diving with a partner Saturday off... More »

How You Could Someday Get From China to San Fran in 100 Minutes

Supersonic vessel will fly through the water in air bubble, say researchers

(Newser) - Never heard of the term “supercavitation”? China’s about to school us all with its announcement that it’s making progress on a supersonic submarine that uses this technology, theoretically giving the underwater vessel the capability to zip along at the speed of sound, reports the South China ... More »

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