At 17:25 23/09/99 -0400, you wrote:
>At 12:28 PM 9/23/99 -0700, Brian wrote:
>>Oh, Gee.  This design pops up at least once a year and is always
>>good for a laugh or two.  :-)
>>Most attempts to point out the flaws in it focus on the effectiveness
>>of the shield device, and the resulting shape of the flux field.  What
>>seems not to get noticed much, is that "permanent" magnets are
>>not really permanent at all.  Energy is transferred to the magnet
>>material during the magnetization process, and the best one can
>>ever do is recover that quantity of energy and no more.
>>If someone has figured out how to make a truly non-depletable
>>permanent magnet, I'll be the first to invest!
>
>I've got a pendulum clock on my mantle that has been swinging for 10 years
>based on a pair of permanent small magnets.
>
>
>================================================================
>Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ral@lcfltd.com
>Least Cost Formulations, Ltd.                   URL: http://lcfltd.com/
>824 Timberlake Drive                            Tel: 757-467-0954
>Virginia Beach, VA 23464-3239                   Fax: 757-467-2947
>
>"Vere scire est per causae scire"

        "Subarashi!"

Dennis

>================================================================
>
>