By Sarah Zhang on Factually, shared by Meg Neal to Gizmodo
The ocean is an inhospitable place for soft, land-based human bodies. It’s dark, oxygenless, and, perhaps most intractable of all, really cold. At the pressure of certain depths, neoprene suits will compress and lose their insulating power. The air in tanks also gets cold, so divers become chillier with each breath. But in the 60s, the Navy thought …
Source:: http://feeds.gawker.com/~r/gizmodo/full/~3/OQQKDnAylBg/+megneal
