At 08:13 PM 7/21/2010, Morris Odell wrote...
Has anyone here had any experience with such a system of have any
suggestions regarding the sustaining system? This is an interesting
and
challenging project.
Scientific American, back in June 1958, covered many details of
Foucault pendulums, from Charron pivots to drive systems. The article
was later reprinted in "The Amateur Scientist" book. It describes a
magnetic drive which applies force near the pivot and another which
sits underneath the pendulum.
There's also a mechanical drive, as described near the bottom of this
page:
http://science-design.com/pages/foucault_pendulum_background/
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