Hi

I am thinking of building one at school this winter. As I am going to
study electronics this winter, this might be a good project to do.

Regards.
J=F3n Fr=EDmann.

On f=F6s, 2009-08-07 at 12:54 -0700, Geoffrey wrote:
> Hello PSN:
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> I was just looking at this page
> http://njsas.org/projects/tidal_forces/01/baker/index.html
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> It seems to show a horizontal pendulum at the top.
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> What I was wondering is if you could build a
> pendulum with a rod and mass maybe 18 inches
> below the pivot or more then extend the rod one inch
> ABOVE the fulcrum of crossed rods bearing
> then attach maybe a circular super magnet
> then on either side of that magnet attached to
> the pendulum attach two opposing super magnets
> at some adjustable distance either side to
> act as a magnetic spring. If you do this
> you may be able to totally eliminate the mechanical
> spring and the ability to adjust the opposing magnets
> will also adjust its period or whatever.
> It will not be linear but may allow for greater
> dynamic range due to its non linear
> magnetic characteristics ??
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> I do not have the ability to try this out
> but maybe one or more of you already have???
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> Thoughts ???
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> Regards;
> geoff
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