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Re: Ions

On Tue, 13 Apr 1999, Ludwik Kowalski wrote:

Last night Crawford Maccallum wrote:

I remember years ago at Sandia Labs folks would expose small slabs of
clear plastic (maybe 15cmx15cmx1cm?) to the Van de Graaf beam. The
slabs could be stored for a long time and then when struck with a sharp
point (hammer and ice-pick) would discharge the trapped electrons
forming handsome dendritic patterns inside the plastic.

What did you mean by "long times"? Hours or weeks?

Sorry, I don't know! Crawford