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teststrips said:
actually this water theory does indeed work, but has some major limitations to hurdle over b4 it'll become even close to public. This $20 dollar item def won't get you even close to what you need though.
Baisicaly how it works is you take distilled water (h2o) and separate the hydrogen from the oxygen. The oxygen is semi-worthless in this state, so you release it into the air, the hydrogen would then be stored in some sort of storage tank. Then when you need power you use a combining device to put the hydrogen and oxygen back together, which creates as much energy as it took to separate it in the first place.
The holding tank baisically becomes a battery
The combining device is what you've probably heard refered to as a "fuel cell"
Designers are looking into solar powered houses that would store energy at high points in the day, then use the stored hydrogen to produce energy at night.
There are some major problems with this therory though that haven't yet been overcome. Fuel cells are big/very expensive, and are not completely efficent.
Stored hydrogen is pretty dangerous to have around until a proper container is devised - you could cool it to make it liquid hydrogen, but that also requires power expendature, making the overall system less efficient.
I've heard rumers that laptops will run off of hydrogen "fuel cells" within 10 years, and a "recharge" will take seconds to refill the holding tank.
I believe cars will also be run off of electricity generated by hydrogen fuel cells, but that would require a MAJOR infrastructure change as you can't buy hydrogen very many places.
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The problem is: it takes far more energy to break the hydrogen-oxygen bond, and transport and store the hydrogen, than than you get when you recombine it with oxygen. Just like burning ethanol in cars. it takes more energy to produce a gallon of ethanol (think farming the corn, fertilizing it, using pesticides on it, harvesting it, transporting it to the ethanol refinery, fermenting it, distilling it to 200 proof (simple distillation only yeilds 190 proof, or 95% ethanol, so you have to take extra steps here) etc., etc. etc.
Basically, you are turning food into fuel. Since the Republicans have drasticaly cut funding for world-wide family planning (look it up) guess what we are soon going to have a world wide shortage of? Aside form oil, that is....? /ubbthreads/images/graemlins/frown.gif