> The thing about riding a unicycle is that you don't think of staying on top of it, you think about keeping it underneath you. Falling forwards? Pedal faster to bring it back under you. Falling backwards? Stop pedalling so you catch up.

Sounds vaguely like track standing on a fixed gear. It's more like balancing a broom on your finger than trying to balance yourself on a rail.

I really love bikes of all varieties, but I've never messed with a unicycle. They seem fun. My friend has one; I'll have to try his sometime.

Because you mentioned torque and such, if you never have, check out this book: http://www.amazon.com/Bicycling-Science-David-Gordon-Wilson/...

I picked it up expecting to read a chapter here and there and ended up cover to covering it. Great read