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Mar 13, 2014 03:00 PM ET // Robert T. Gonzalz, i09
Competitive breath-hold divers can squeeze ten, fifteen, even twenty minutes out of a single lungful of air. How do these divers do it and how can you train to hold your breath for longer?
Aug 31, 2011 06:19 PM ET // Alice Truong
Kayaks, first built by the Inuits in North America, were used to hunt on inland lands. Estimated to be at least 4,000 years old, kayaks in their earliest forms were made from stitched seal or other animal skins over a frame made from whalebone. These vessels got their buoyancy with seal bladders fi...
Nov 4, 2011 06:52 PM ET // Erik Trinidad
There have been many stories of solo hikers getting stranded in the wilderness for days as of late, and all of them made it back to civilization due to a will to survive and, less notably -- but most importantly -- some water. A person can survive for weeks without food, but only about 3-5 [...]