Algodoo

The goal here is to see who can build the most efficiant engine w/o using any motors (except perhaps a starting motor) you can make them bounce engines, or - dampening spring engines like mine.

`s` starts the engine (hold until revving relatively high), `d` stops the engine, also the wheels if the clutch is engaged, arrows move the clutch from gear to gear, `b` brakes the drive wheel, most of design taken from teds engine design, re-tweaked.