This piece of genius was thought up by a friend of mine in the pub recently. I think its worth hearing....
"When a cat is dropped, it always lands on its feet, and when toast is dropped, it always lands with the buttered side facing down. I propose to strap buttered toast to the back of a cat; the two will hover, spinning inches above the ground. With a giant buttered cat array, a high-speed monorail could easily link major metropolitan areas.
Its as simple as that..."
I'm not sure if he should quit his day job just yet, but he's getting somewhere!!!