Stanley Meyer is the inventor of water fueled cars. A couple of years ago, he had a dune buggy and he tried modifying it to work with water. His basic idea was that it is possible to split water into hydrogen and oxygen with less energy than what is created when they burn. He said his invention could do what physicists say is impossible – turn water into hydrogen fuel. His invention should have been able to cross the whole country with only 20 gallons of water.
Meyer's invention was based on a process that we learned in middle-school science labs: electrolysis. With the help of electricity, the molecules of water are cracked and split into hydrogen and oxygen. To see if the process worked fine a match is lighted and the gases should explode to prove that the water molecule was separated into its components.
But Meyer said his invention did the same thing but using less energy than what physicists believed is needed. There are several videos that show that his invention is turning water into its components in just a few seconds.
Physicists believe that if you can't get something for nothing, like it's stated in the Law of Energy Conservation, which says that energy can't be created or destroyed and they haven't believed Stanley's method of separating hydrogen with less energy.
Unfortunately, Mayer died in 1998 when he was eating at a restaurant with his brother. Apparently he was poisoned by someone because he took a sip from his juice, grabbed his neck, ran away out, fell down in his knees and vomited violently. His last words were: "they poisoned me" and it seems that many people wanted to steal his invention. Even though he's gone a lot of people will try to continue his work and one day water powered cars will enter the production stage and everyone will be able to have one in the future.