Quincy wrote:Wait a minute, you all agree it takes a lot of energy to get hydrogen and oxygen to bond to form water. And the hydrogen they use in hydrogen bombs comes from water. So can't water, say sea water, be used as an energy source, since it has so much energy in its bonds?
Other way around. It takes energy (chemical energy) to break the oxygen-hydrogen bond.
Combining oxygen and hydrogen to get water releases heat.
It's easier, for most purposes, to just directly use the energy you would have expended breaking up the water molecules.
Hydrogen bombs use nuclear energy. Hydrogen atoms are fused into larger atoms such as helium. They haven't figured out how to make controlled fusion economically feasible yet.
