Ever wondered how to use an exercise bike in space?

Jane

... nope, I hadn't either until somebody sent me this. It's a tour of the Space Station with lots of interesting facts about living in zero gravity and yes, the occupants need to exercise to minimise loss of muscle mass and bone density.

http://www.youtube.com/embed/doN4t5NKW-k

The bike bit is about 3 minutes in (or watch the whole lot, but I felt vaguely dizzy by the end of it!)