🚀 go-pugleaf

andyh@chaos.cs.brandeis.edu (Andrew J. Huang) writes:
>In article <1992Dec15.194558.2556@adobe.com> pngai@adobe.com (Phil Ngai) writes:
>2. There are several places for the energy to go during an explosion.
>Since the energy is kinetic, a lot of it will end up as particle
>velocity.  Some will dissipate into the air as air friction (some hot
>air as a side effect).  A quantity of energy will go into the
>mechanical breaking of the flywheel disk itself.  Some more will go
>into the penetration of the flywheel housing.  What residual energy
>escapes these will have to be determined by testing.

They are supposedly designed within a box held at a vacuum (sp?), with
the box string enough to contain them, I thought.

>3. You don't need to destroy cars to test the safety/danger of
>exploding flywheels.  You just take a flywheel, spin it to 10 times
>its rated capacity, and give it both barrels of a 10ga shotgun loaded
>for elephant.  If it explodes, you measure the explosion.  If not,
>send it to Ralph Nader for further tests.

There is a different between shooting it and having it break up though.