02-11-2011, 12:13 AM
Okay, this might sound absurd but I'm serious. In order to solve a problem I like to go the extreme of that situation. In this case we have run out of fuel and as stated by some current alternatives are not viable. But take the idea of compressed air. Now I know that in the case of steam cars water is not the fuel, it has to be heated. And so on. But I think of the FLintstones. Not joking. Compressed air needs energy to compress the air. We have that energy inside us. A simple compressor run by a stationary bicycle with a fairly sophisticated gearing system. The same can be done inside the car compartment with a simple pedal system. We would not only have "free" fuel but we would be in great shape.