Ralph Shumaker wrote:
Wow, a mere 150 seconds to recharge and 20 year lifespan. With a few
good solar panels and wind generators, who would need the utility
companies?
It would be nice if they could effectively replace the batteries in
electic cars. Unfortunately, the additional weight may short-circuit
any gain.
Gyroscopic moment and blast containment (the flywheels can fracture and
explode) are the more problematic issues.
-a
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