One of the
HAYNES HOT AIR ENGINE
prototypes "running"...
One of the most perplexing engineering problems that had
to be solved was getting the crankshaft to revolve one way while the flywheel
revolved the other. It wasn't until a special velocity reversing joint was
developed, that the engine would run properly.
(Actually it's called aliasing... a result of animation... just like the old western movies with the stagecoach racing down the road with its wheels slowly revolving backwards... I came out of childhood very confused by that...)
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