A while back on this list there was a lot of discussion about using 
graphite to build a seismometer based on it's diamatic levitation properties.

I just located a source of a small Diamatic Levitation demonstration 
kit that might be of interest to anyone who wants to experiment with this.

See http://www.sciplus.com/ and look at their item # 93630P1

George 

__________________________________________________________

Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with 
the body of the message (first line only): unsubscribe
See http://www.seismicnet.com/maillist.html for more information.