Re: Chladni figures...

[Joseph Bellina <jbellina@saintmarys.edu>]

The plate we have is brass and about a sixteen thick.  But bowing it is 
a bit of an art.  The art is removed if you use a poweramplifier and a 
speaker cone to drive the place.  I believe Pasco makes such a thing.  
Also, I would use sand rather than lacapodium (however you spell it) 
powder.

cheers

On Mon, 2 Sep 1996, Delissa Souder wrote:

> Greetings!  I was wondering if anyone has ever tried making chladni 
> figures as a lab or demo?  If so, could you give me some advice on doing 
> so?  What materials did you use?  What type of patterns did you get?  
> I've tried using a metal disk (galvanized sheet metal) supported at the 
> center and various "bows" to produce the sound vibrations.  I've been 
> unsuccessful and was wondering if there is anything else I could use that 
> is readily available.  Any help would be greatly appreciated.
>
> Thanks,
> Dwight
> dsouder@ashland.edu