Revolutionary Scuba Mask Creates Breathable Oxygen Underwater On Its Own
minds.com
minds.com
http://www.nigelhewitt.co.uk/diving/rant/#gills
Quote (following an explanation of the quantity of oxygen in solution in sea water at depth, vs. quantities required to breath, yielding a requirement of 2000L/minute of water to be processed):
"This raises three problems in my mind.
"Firstly is size. If the magic box is a reasonable size, say a volume of working water is the size of my scuba tank it will have 12L of water to work on at any one moment. So 2000L/minute means that the water must be in, processed and out in 12*60/2000 seconds. That's just over one third of a second to complete the whole process.
"Secondly there is the fact that 2000L/minute worries me when I consider that my old 20HP outboard had an 20cm diameter prop on it. To move 2000L/minute it would have to knock the water through at 2000/31.4=63m/s, otherwise 142mph in old numbers. So my second problem is that this is a huge amount of thrust for a diver who does not wish to zoom about like a torpedo and the third problem is that that sort of power isn't going to come from ordinary batteries."
Personally, I read the article as a typical design student 'concept' piece; certainly, if I were a battery manufacturer that had a product 30x more energy dense than the competition, which charged 1000x faster, I would not be looking at the scuba market to make my billions.
Wait, who said I don't want to zoom about like a torpedo?
I'm kidding, of course. Great link!
I hate to be so negative, but this actually works...if you ever see a project that makes you say "Gee, it looks like an industrial designer's concept might have gotten mistaken for a real product here", you should then ask yourself, "Is Yanko Design somehow associated with this piece?" 9 out of 10 times the answer will be yes.
http://www.behance.net/gallery/TRTON/13434535
"The micro battery is a next-generation technology with a size 30 times smaller than current battery that can quickly charge 1,000 times faster." - seems BS
If this were real and it isn't - it sounds like a rebreather (http://en.wikipedia.org/wiki/Rebreather) only several orders of magnitude smaller and without the extra tank full of pure O2.
Fun to think about though.
It's easy to dream up wonderful applications of various (non-existing?) technologies. The hard part is actually making them work in the real world.