I didn't realise it was this rare, I've seen the start of a rainbox in Oxford, England once, but as you move towards it, it moves away.

doesn't work for me? I can only suppose that's a good thing!

It's true, I myself own 50 cats, this has enabled me to leap over 3 story buildings and withstand more gamma radiation than the average waterbear!

haha levi that was pretty funny. it seems real enough to me, when I saw the beginning of the video I assumed it was ethanol as it burns relatively cool, and really you're only touching the underside of the ball.

This is reminiscent of the Diamond mountain bike featured in the film "haggard".

This question has actually already been answered in "The Ultimate Book of Notes and Queries" by Joseph Harker. It's an extract of all the best questions asked of the guardian newspaper. I don't remember the answer exactly, but basically you would have to be super-humanly fat to have any protection.