Science was the one thing I was taught half-decently at school.
"Half" being the operative word.
You also have the same situation with air where you have an amount of nitrogen mixed in, it's just a matter of being able to divide it up so we can use that and we've almost got the technology to efficiently do that now, you've got some re-learning of chemistry to do
You're the one who's got to relearn their chemistry, if you don't know the difference between a
mixture and a
compound. Air contains a
mixture of oxygen and nitrogen, meaning the two elements are not chemically bonded to each other. Water, on the other hand, is a
compound, meaning the hydrogen and oxygen
are chemically bonded. That means it's impossible to separate the two without breaking the chemical bonds, and that requires
energy. That's why combining hydrogen and oxygen in the first place
releases energy. The energy released by combining hydrogen and oxygen into water is the same as the energy required to separate water into hydrogen and oxygen. The same. Not more. You can't produce more hydrogen from water than you're consuming, so if you want to produce more hydrogen, you need an
additional source of energy. In fact, you can't even produce the
same amount of hydrogen as you're consuming, since some of the energy is wasted as heat and the rest is being used to power your motor.
you don't know as much as you think as for the process of starting everything they already said in that video they start up the machinery with the electricity generated from the process itself, there are no fossil fuels involved if these fuel cells are what people claim them to be.
You don't know as much as you think if you think perpetual motion machines of the first kind are possible. No such claim was made in that video.