Re: [TCML] Tesla's spinning egg of Columbus

[William Beaty <billb@xxxxxxxxxx>]

On Tue, 18 Nov 2008, Ed Phillips wrote:

> There was some kind of an egg but other objects
> were used too including, if I remember right, a little aluminum tea pot
> laid on its side.  The coil was covered with a sheet of plywood so the
> spectators didn't really know what was happening until the exhibit
> keeper took the wood away.


Competition for the largest "egg" driver was in The Physics Teacher
magazine years ago.  At one of the large hydro dams was three large pipes
jutting up out of the rock face.  They contained a major 3-phase output
from the system, and someone had discovered that the rotary b-fields would
spin a metal object.  They'd set up a vertical wooden post with a
sharpened nail on top, then balanced an upside-down steel coffee can on
the nail.  Giant induction motor using 1-turn coils.





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William J. Beaty                            SCIENCE HOBBYIST website
billb at amasci com                         http://amasci.com
EE/programmer/sci-exhibits   amateur science, hobby projects, sci fair
Seattle, WA  206-762-3818    unusual phenomena, tesla coils, weird sci
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