I'm no scientist. However, I do get into some things that most people would consider, well, science. Anyway. I've seen on tv (eco-tech) many different ways to try to harness hydrogen as a fuel. My question here is. If you place plain water in a vacuum you begin to see it bubble, or almost boil AT ROOM TEMP.! What are these bubbles???? If they are what I think they are then it seems simple to harness loads of H from a large vacuum and a tank of H20. Or maybe I'm confused or don't even know what I'm talking about.

hrm as far as i know hydrogen is made by electrolysis of water..youll never release the hydrogen molecules just by installing a vaccum on a tank of water
check it out on wikipedia

pcz out

The bubbles you see is water vapor. By putting liquid water in a vacuum, you are lowering the boiling point to below room temperture. What is called the "Vapor pressure" of the liquid exceeds the atmospheric pressure and the liquid boils. I can remember in our physics lab in high school, we had a small beaker of water in a vacuum bell jar with a thermometer in it. As the water boiled, it cooled until we had the very unusual case of liquid water boiling at MINUS 8 degress Celsius! Water normally freezes at 0 degrees C, but there it was, -8C and BOILING! The water had become "supercooled" like what happens in clouds. Id had not frozen as the water we were using was distilled water and very pure and there was no nucleii start the ice forming. When the jar base was jostled, the water froze almost instantly and at the same time the temperture rose to 0C. It had given up it's "heat of fusion" during the freezing process and raised the temperture by 8 degrees C. A very interesting demonstration of the effects of vacuum on liquids. If you are a sudent, you should talk to your science instructors about repeating our experiemnt.