Instead of depending on the traditional fossil fuels that release carbon emissions, an engine that emits water is something that could potentially be on the eco-friendliness radar. Yamaha Motor was ...

The innovative 400 horsepower hydrogen engine by AVL RACETECH, combining high performance and sustainability for the future of motorsports and automotive.

So, while water-powered engines do exist and have practical applications in space exploration, we're unlikely to see them ...

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 ...

Hydrogen vehicles use fuel cells to convert hydrogen gas into electricity, producing only water vapor as a byproduct ... Despite the dominance of electric engines, hydrogen-powered cars continue to ...