From: Bob McClure bobmcclure90@.........
Sent: Mon, 9 Jul 2012 15:02
Subject: Re: diamagnetic levitation seismometer possibility


Hi Randall,

I, too, have carried out diamagnetic levitation experiments similar to thos=
e by Meredith Lamb. Although the large amplitude motion looks smooth and fr=
ictionless, what I concluded for very small amplitudes, such is not the cas=
e. The supporting magnetic field has small-scale roughness, and the levitat=
ed graphite tends to hung up in the hills and valleys of the resulting forc=
e.=20

Hi Bob,=20

    Did you ever try putting a transformer lamination on top of the magnets=
 to smooth out any field irregularities ?=20
    Regards,=20
    Chris Chapman


=20

From: Bob McClure bobmcclure=
90@.........

Sent: Mon, 9 Jul 2012 15:02

Subject: Re: diamagnetic levitation seismometer possibility













Hi Randall,

 

I, too, have carried out diamagnetic levitation experiments similar to=
 those by Meredith Lamb. Although the large amplitude motion looks smooth a=
nd frictionless, what I concluded for very small amplitudes, such is not th=
e case. The supporting magnetic field has small-scale roughness, and the le=
vitated graphite tends to hung up in the hills and valleys of the resulting=
 force. 





Hi Bob, 

 

    Did you ever try putting a transfo=
rmer lamination on top of the magnets to smooth out any field irregularitie=
s ? 

    Regards, 

    Chris Chapman