Jan 28, 2014 18:52:46 "Animated Engines" which can see GIF animation of 21 kinds of engines including rotary, 4 stroke, steam engine etc. Engines such as automobiles and airplanes, vehicles and ...

Greek engineer Hero of Alexandria designs the first steam engine; it has a pedestal, an altar, and a rotating ball—but no practical use. French inventor Denis Papin builds a cooker that traps ...