I once tried to make perpetual motion
I spent about a month making prototypes and everything.
Didn't work though :-(
( Gooch Is neither here nor there, Fri 12 Jun 2009, 12:38, archived)

(1) Take cat
(2) Butter some toast
(3) Fasten toast to cat (butter side up)
(4) Drop cat and toast from small height
( FoldsFive, Fri 12 Jun 2009, 12:40, archived)

YES!

( Amorous Badger NAKED BEA ARTHUR PHOTOS 4U, Fri 12 Jun 2009, 12:40, archived)

It doesn't work
The cat sits down and licks the butter off of the toast
( M o D, Fri 12 Jun 2009, 12:42, archived)

It has to stop hovering long enough to break the physics paradox first.

( FoldsFive, Fri 12 Jun 2009, 12:44, archived)

haha

( Gooch Is neither here nor there, Fri 12 Jun 2009, 12:42, archived)

you forgot
(5) adjust vertical hold position by adding butter or removing limbs from the cat.
( the mighty badger Aphrodite, on a bar stool, by your side, Fri 12 Jun 2009, 12:44, archived)

Fine tuning can be achieved by simply brushing the cat.

( FoldsFive, Fri 12 Jun 2009, 12:46, archived)