Cindy: If you have one of the Cenco Elihu Thompson jumping ring apparatus
demonstations, you have the makings of magnetic induction heating.
Being sadistic, we sometimes have a smart-elic student hold down the ring
to "test his/her strength." The ring gets so hot after 5 seconds that it
must be let go or the person burns his finger tips.
An old friend (Red)from Pan Am University used to do a demo where he fried
eggs in a (cast iron?-probably thick aluminum) skillet above the apparatus,
but placed an ice cream sandwich in the space between. Pretty impresive to
watch a "heatless" transfer of energy.
So why haven't I stole this demo idea from him???
Have fun, Karl
____________________________________________________________________________
Dr. Karl I. Trappe Desk:(512)471-4152
Physics Dept-Mail Stop C1600 Office: (512) 471-5411
The University of Texas at Austin FAX: (512) 471-9637 (other building)
Austin, Texas 78712-1081 E-Mail:trappe@physics.utexas.edu
____________________________________________________________________________