The obvious problem here is that water can't create the spark necessary to power a combustion engine, so if we wanted ... for centuries thanks to the works of researchers like Michael Faraday ...

Water makes up 71% of the Earth's surface and it's renewable, so it makes sense that some might start looking to power ...

For example, [Tom Stanton] took a previous air engine design, did away with the air compressor, and instead used gravity and water to create just a few PSI to run the engine. The basic setup is to ...