Since its U.S. release in 2000, the Toyota Prius has been the subject of both mockery and admiration. While some deride the hybrid for its inconspicuous look and lack of traditional power, others ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...