My friend asked me how many cylinders an RX-7 has after we came out of watching Fast&Furious at the theater, and I told him that it does'nt have any cylinders, and it's a totally different engine. He said it's impossible for an engine to not have cylinders, so I went to
www.howstufworks.com and I showed him the animation of the rotary engine, and he was convinced...an engine without cylinders
