An Israeli inventor says he has invented an underwater breathing device that extracts dissolved oxygen out of water via a centrifuge. No oxygen tanks would be required. It takes advantage of a physical law called the "Henry Law", that speaks to the amount of gas that can be dissolved in a liquid. Patent pending in the U.S., so we may wait a while before we know if this works? My B.S. detector really wants to go off on this one, but I don't understand, fully, the science behind it. Anyone willing to weigh in on this one?
IsraCast: Technology in Israel