I agree, to an extent, that hydrogen fuel-cell cars are being pushed as "green" vehicles, but the main reason is to lessen dependence on petroleum/foreign oil.


I assume, here, that you are refering to traditional battery-powered electrics, because hydrogen-fuel-cell cars also power electric motors. In fact, fuel-cell technology started with NASA decades ago as a means of producing electricity in space.

Well, that's wat

 

you could say...it went down... like the hindenberg.




YEAHHHHHHHHHHHHHHHHHHHHHHHHHH

 

fuel cells in space makes a lot more sense than on the ground. In space you already have a large supply of liquid hydrogen. You cant use huge battery banks in space due to the weight. But on Earth those advantages are negated.

this statement has the same irrelevance as I dont know whyd they'd use the same material found in water. Read on the principles of how a hydrogen bomb works. They use a fission bomb to compress hydrogen so a fusion reaction starts, energy is released when hydrogen combines with other hydrogen molecules to form helium. The exact same method that the sun generates its energy. How can you get more green than the Sun?

 

Hydrogen also has one of the highest energy concentrations per unit weight (but among the lowest per unit density), so it makes sense for space, where lifting mass is incredibly more difficult than lifting volume. On the ground, that isn't an advantage, and in fact, more of a hindrance.