[TR] Flywheel lightening

[Dave1massey at cs.com]

In a message dated 12/19/2008 9:03:19 AM Central Standard Time, 
zoboherald at aol.com writes: 
> This flywheel looks spooky dangerous to
> me.

That does seem a bit extreme but that is the low stress part of the flywheel. 
 Taking material off near the hub does less good (angular momentum is a 
function of distance from the center of rotation, after all) and weakens the 
flywheel in the most critical area.

Dave