PSN-L Email List Message

Subject: Re: "P" ky "Slinky"
From: "Geoffrey" gmvoeth@...........
Date: Thu, 26 Jul 2007 09:38:44 -0700

Far Out Man;

Verticals are harder to make than horizontals.

P = 2 Pi sqr( l / 386)

l = 386((P/2Pi)^2)

This tells me your spring probably hangs one foot
without any weight and five feet with the weight.

Does this sound right ?

I wonder if you can use levitation to set your own period.

It would be like putting most of the weight on the spring
then using magnetic or other levitation to reduce the
gravitational constant or changing electronically
the spring constant.

If you put your hand under the mass which is suspended
on the spring and levitate it a couple mm then you
most possibly could give it near any free period youd like to.

Not sure about this but it might be interesting for
someone with the resources to try.



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