AW: [sdiy] OT: Generator?

[Czech Martin]

This idea was arround in the 50's. I remeber a picture of a so called "gyro
bus". This was a bus with current "antennas" for the overhaed catenary
and an electrical motor. It also had a massive flywheel that could
be "charged" when going downhill or when breaking.

I think GM proposed another variant, low weight, but very fast rotation
for an turbo electric car design study. This vehicle could thus 
save very tiny amounts of energy and was very efficient.

m.c.  

> >Of course if you were really clever you'd feed the current to a motor
> connected to a large flywheel and spin it up. Then on your way uphill
> again you'd switch things around and use the motor as a generator.
>