Youd use something like a permenant magnet with an
electro magnet in combination to either attract
or repel or both in opposition to the pull
of gravity thus anti gravity to the point of
reducing the gravity as if it will
produce a 5 or more second period from
an otherwise  one second device.



You would need to reduce g to like 
15.79 inches per sec^2
instead of its average of 386.088in/sec^2.


thats all i mean here.


regards,
geoff


please excuse me for the delay in answering but i destroyed my win7
by installing this program for backup then it refused to uninstall
so i tried it manually only ending up to reinstall the entire os.
it always takes me a long time to reinstall. i think i will
use windows7 partition imager this time instead of just
system restore.

I have yet to find a ghosting prpgram that works to my liking.

Id like to create a duplicate OS in a hidden partition
but I think those days are over with the newer systems using
NTFS with all that security crapola?




----- Original Message ----- 
From: "Bob Smither" 
To: 
Sent: Monday, August 08, 2011 9:21 AM
Subject: Magnetic levitation (was:Re: Springs and Gravity or Magnetism)


> Geoffrey M. Voeth wrote:
>> I'm Not Trying to be a smartass but,
>> ShaZam ??? !!!
>> 
>> Is there any way to make the magnetic thing be linear
>> like possibly using a Hall effect sensor an electro magnet and a pid loop
>> like a automobile speed control ?
>> 
>> I am possibly thinking of using magnetic repulsion/attraction  to
>> reduce the pull of gravity and thus increase the
>> period of a vertical geophone ?
>> 
>> You need an acceleration in the opposite direction
>> not quite as powerful as the Earths ?
>> Does not matter what causes the acceleration in
>> the opposite direction (UP) ?
>> 
>> Any ideas in how to do such a thing ?
>> 
>> Regards,
>> geoff
> 
> Hi Geoff
> 
> With the understanding that I may be wrong, I will comment.  The 
> geophones that I am familiar with have a suspended coil arranged to cut 
> the lines of a fixed (to the case) permanent magnet.  Adding an external 
> magnetic field might increase or decrease the sensitivity (Volts / m / 
> sec) but I don't see how it could change the period.  AFAIK the 
> suspended coil form is non-magnetic.
> 
> Regards,
> 
> Bob
> 
>
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