Date: Wed Apr 25 14:25:53 2007

Author: David Maiullo

Subject: Re: radioactivity demo (playing cards)

Hi Sasha,

My favorite modeling of radioactive decay is the demonstration I learned
from Dick Berg:

(I hope you don't mind me tooting your horn, Dick)

We've been using it all this week. We always end it by saying that
Einstein was wrong, God does play dice with the universe......


Sasha TK wrote:
> Hello all,
> A couple of years ago I came across a description of a radioactive
> half-life classroom activity that involved students doing something
> with a regular deck of playing cards. It sounded good at the time but
> I failed to get the details. Does anyone know what this activity is? I
> don't remember enough about it to reconstruct it.
> Alternately, do you have a favorite radioactive decay conceptual
> exercise I could use? I'm coming up on teaching this material for the
> first time and I don't really have good demos or analogies to use yet.
> I do, however, have a Geiger counter and will use it to show that it
> gets "hits" regardless of what it is pointed at.
> Thank you,
> Sasha Tavenner Kruger
> Lane Community College
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