It’s an old technology for storing energy that’s finally getting an update, and it’s appearing everywhere from power plants to Formula One race cars, and will soon be hiding in your wheels, helping ...

A 22-year-old inventor combines two old technologies into a bicycle that saves energy when it brakes and can then accelerate without pedaling. The technology of a flywheel is simple and old: Use ...

While it's not exactly enough to turn Formula One green, the racing league at least looks to be taking some steps in that direction, with it now announcing that it plans to phase in a new hybrid ...