PSN-L Email List Message

Subject: Re: Charles Patton levitation suggestion...
From: George Harris gjharris@.............
Date: Wed, 06 Oct 1999 16:02:21 -0400


Regarding materials with negative susceptibilities:

Perhaps I have missed something along the way, but there are a number of
materials with higher negattive susceptibilities than carbon.  The handbook
of Chemistry and Physics (59 th edition - 1979) lists the
following:

Carbon or diamond   -6
Bismuth (solid) -280
Aluminum Sulfate (anhydrous) -93
Aluminum Sulfate Hydrate (Al2(So4)3.18H2O -323
Calcium Carbonate  -38
Ammonium  Nitrate  -34
Ammonium Sulfate  -67

The values stated are per gram, so the specific gravities are probably
important also.   It would seem that the crystal form should be the best if
available.  Have any of these been tried?

George Harris




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Larry Cochrane <cochrane@..............>