Source: http://www.wired.com/gadgetlab/2011/06/floating-powersnorkel-pumps-air-to-divers-beneath/
Miyerkules, Hunyo 22, 2011
Floating PowerSnorkel Pumps Air to Divers Beneath
Remember those old diving suits with the big metal helmets and the weighted shoes that let you walk across the ocean floor? The divers carried no tanks, relying instead on a partner pumping air down a hose from the surface. If the guy up top decided to take a smoke break, or just nodded off, [...]
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