A compact thermoelectric generator built by researchers at Pennsylvania State University can convert exhaust heat from cars, helicopters, and unmanned aerial vehicles (UAVs) into usable electric ...

Combustion engines, the engines in gas-powered cars, only use a quarter of the fuel's potential energy while the rest is lost as heat through exhaust. Now, a study demonstrates how to convert exhaust ...

The combustion engines in gas-powered cars can produce a lot of power by burning dead dinosaurs, but they’re surprisingly inefficient at it, with most of the energy they consume — an estimated three ...