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Post by Kelly Jessop on Mar 6, 2008 19:04:20 GMT -5
Ocean-dive longer with a military-style system that recycles your air By Mark Anders This diving gear reuses air instead of emitting it, avoiding bubbles. If you plunge into the sea to ogle exotic wildlife, why not stay a while—and get an even closer view? Cave-diving engineer Bill Stone [see “Journey from the Center of the Earth,” February 2007] makes that possible with the most user-friendly version yet of a rebreather, a device that recycles your exhaled air, removes carbon dioxide, and adds oxygen. (A scuba device quickly burns through tanks of fresh air.) On a typical dive, the Poseidon Discovery lets divers stay underwater at least three times as long as scuba gear can, and since you don’t exhale into the water, you don’t create bubbles or noise that can scare off fish. www.popsci.com/gear-gadgets/article/2008-03/underwater-overtime
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