Someone was looking for "moment of inertia"

[QSIMDO]

http://www.engineersedge.com/calculators.htm

For your amusement and amazement; this site seems to have some info.
Not sure if it'll help but I enjoy going there to be mystified and confounded.

[gmm22]

I had recently asked about moment of inertia. Thanks for the link. There are interesting things to be found there.