From: Dani Eder (email@example.com)
Date: Tue May 02 2006 - 18:32:16 MDT
But couldn't we
> replace the expensive and
> heavy motors and batteries with a flywheel?
You can only replace the batteries. Because cars
move around, up and down hills, the flywheel has
to be in a gimbal mount. It's spin axis will
resist changing direction no matter which way the
car is moving.
To keep from losing energy to air friction, the
flywheel also has to be in a vacuum.
These make it difficult to mechanically connect
the flywheel to the wheels. If you do the connection
electrically, then the flywheel has a motor/generator
at it's end, and the wheels have motor/generators
at their end.
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