Hi Randall,

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

Bob

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Subject: diamagnetic levitation seismometer possibility
From: Randall Peters PETERS_RD@..........
Date: Sun, 8 Jul 2012 09:40:40 -0400

For those of you who have had an interest in levitating graphite, you may
find interesting a prototype instrument that I recently built.  I first
witnessed the intriguing possibilities of diamagnetic levitation through a
demonstration by Chris Chapman about half a decade ago, when I visited with
him in England.  Only recently did I come to know about pyrolytic graphite
(PG) plates, as opposed to the earlier experiments with rods.  Because the
plates are amenable to use with my fully differential capacitive sensors, I
decided to try my (typically frustrating) hand at building such a
tiltmeter/seismometer-that I have called in the following online paper an
'earth motion' detector.
http://physics.mercer.edu/hpage/diamagnetic/diamag.html
   The outstanding performance of this prototype really surprised me.  My
thanks to Meredith Lamb and John Lahr (deceased, whom I admired greatly)
for their pioneering work that steered me this direction,

For those of you who have had an interest in levitating graphite, you may
find interesting a prototype instrument that I recently built.  I first
witnessed the intriguing possibilities of diamagnetic levitation through a
demonstration by Chris Chapman about half a decade ago, when I visited with
him in England..  Only recently did I come to know about pyrolytic graphite
(PG) plates, as opposed to the earlier experiments with rods.  Because the
plates are amenable to use with my fully differential capacitive sensors, I
decided to try my (typically frustrating) hand at building such a
tiltmeter/seismometer=E2=80=94that I have called in the following online pa=
per an
=E2=80=98earth motion=E2=80=99 detector.

http://physics.mercer.edu/hpage/diamagnetic/diamag.html

The outstanding performance of this prototype really surprised me.  My
thanks to Meredith Lamb and John Lahr (deceased, whom I admired greatly)
for their pioneering work that steered me this direction,

    Randall
Hi Randall,
I, too, have carried out diamagnetic levitation experiments si=
milar to those by Meredith Lamb. Although the large amplitude motion looks =
smooth and frictionless, what I concluded for very small amplitudes, such i=
s not the case. The supporting magnetic field has small-scale roughness, an=
d the levitated graphite tends to hung up in the hills and valleys of the r=
esulting force. I do not recommend the use of diamagnetic levitation.


Bob

~~~~~~~~~~~~~~~~~~~~~~~~~~=
~~~~~~~~~~~~~~~~
Subject: diamagnetic levitation seismometer poss=
ibility
From: Randall Peters PETERS_RD@..........=C2=A0


Date: Sun, 8 Jul 2012 09:40:40 -0400

For those of =
you who have had an interest in levitating graphite, you may find interesti=
ng a prototype instrument that I recently built. =C2=A0I first witnessed th=
e intriguing possibilities of diamagnetic levitation through a demonstratio=
n by Chris Chapman about half a decade ago, when I visited with him in Engl=
and. =C2=A0Only recently did I come to know about pyrolytic graphite (PG) p=
lates, as opposed to the earlier experiments with rods. =C2=A0Because the p=
lates are amenable to use with my fully differential capacitive sensors, I =
decided to try my (typically frustrating) hand at building such a tiltmeter=
/seismometer-that I have called in the following online paper an 'earth=
 motion' detector.

ht=
tp://physics.mercer.edu/hpage/diamagnetic/diamag.html
=C2=A0 =
=C2=A0The outstanding performance of this prototype really surprised me. =
=C2=A0My thanks to Meredith Lamb and John Lahr (deceased, whom I admired gr=
eatly) for their pioneering work that steered me this direction,


For those of you who have had an interest in levitating=
 graphite, you may find interesting a prototype instrument that I recently =
built. =C2=A0I first witnessed the intriguing possibilities of diamagnetic =
levitation through a demonstration by Chris Chapman about half a decade ago=
, when I visited with him in England.. =C2=A0Only recently did I come to kn=
ow about pyrolytic graphite (PG) plates, as opposed to the earlier experime=
nts with rods. =C2=A0Because the plates are amenable to use with my fully d=
ifferential capacitive sensors, I decided to try my (typically frustrating)=
 hand at building such a tiltmeter/seismometer=E2=80=94that I have called i=
n the following online paper an =E2=80=98earth motion=E2=80=99 detector.


http://physics.mercer.edu/hpage/diamagnetic/diamag.html

The outstanding performance of this prototype really=
 surprised me. =C2=A0My thanks to Meredith Lamb and John Lahr (deceased, wh=
om I admired greatly) for their pioneering work that steered me this direct=
ion,


=C2=A0 =C2=A0 Randall