they do work according to some of the bus/big rig folks, and some bike guys love'em ohwell apparently they were originally developed for use in some medical centrifuging operations big_eek .... and I'd say it has more to do with centripetal force than centrifugal force

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics