Re: Practical demonstration of a half-life

[Paula Trinoskey <e902354@popout.llnl.gov>]

Mark,

A box of candy (real or otherwise) can be used as a prop.

Paula Trinoskey

Dear Colleagues,
>
>I am looking for a good way to demonstrate the notion of a
>half-life to a group of staff who are not highly educated, and, in
>many cases, are from a non-English speaking background.
>
>All of the demonstrations I have previously used, or seen used,
>have implied a reduction in volume as well as activity (even some
>very good graphics).
>
>With the usual budget constraints (i.e. no money), I need to find a
>good inexpensive way to illustrate reduction in activity, but not
>volume, with time.  Ideally, this demonstration would be very
>physical, capable of being "run" by an untrained volunteer under
>instruction.
>
>Your suggestions/experiences will be welcome.  Please reply to me
>at the email address below, unless you believe your response will
>be of interest to the whole of Radsafe.  I'll summarise and post the
>useful or informative responses.
>
>Cheers,
>
>Mark Hanlon,
>Radiation Safety Officer,
>The New Children's Hospital,
>P.O. Box 3515,
>PARRAMATTA, NSW, 2124
>Australia
>
>Phone  61 2 9845 3324        Fax  61 2 9845 0831
>
>email   markh@nch.edu.au
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