Radial and Rotary engines
Check these out:)
RADIAL....the cylinders dont spin..the pistons push the central off-set axle around....
http://www.aviation-history.com/engines/radial3.jpg
http://www.aviation-history.com/engines/radial.htm
ROTARY.....it ALL SPINS!!!!!
Unreal.....all of it goes round and the prop is bolted to it! Can YOU spell inertia and can you spell torque twist ;) ?
http://www.aviation-history.com/engines/100hpgma.jpg
http://www.aviation-history.com/engi...ary-theory.htm
My mind was BLOWN :)