Hello Julian ,
Thanks for your interesting answer. Hardness of diamonds is already being
demonstrated but i'll look for other comparisons aas you mentioned.
Thanks
Sincerely
Arie Avidor
Israel


>In article <[log in to unmask]>, Arie Avidor
><[log in to unmask]> writes
>>Does anyone have any ideas on activities connected with exhibition dealing
>>with Diamonds?
>>Arie Avidor
>
>You might like to illustrate the hardness of diamonds.  There are any
>number of ways of doing this but you could, for example have a series of
>styli, (assumed plural of stylus!), with points of materials of
>different hardnesses.  These could be uses to attempt to inscribe plates
>of other materials.  I seem to recall a hardness scale based upon this
>method.
>
>Also of interest in this contex is the hardness and other properties of
>graphite in comparison to diamond, both being carbon.  This could lead
>into visitors creating crystal structures, testing for their strength,
>rigidity etc.
>
>The refractive index of diamonds, coupled with the ways in which they
>are cut give them their brilliance.  There are many interactives based
>upon this property which could be modified to relate to diamonds.
>
>Good luck with the exhibition.
>
>Julian Ravest
>Museum Consultant
>Everyone's actions are rational
>within the world as they see it
>
>