Mathematical equations, physics buffs.

[Iggypoppin']

I said I'd start one!
general maths problems, equations, formulae, discussion on maths education methods, etc.
Physics equations, space time theories, Einstein etc. There's got to be some people interested and educated in this stuff. Graphs and other instruments encouraged to be posted!
For the record, there isn't a treadmill big enough, and if there was I think there are some people who would argue that friction would prohibit the plane from taking off.