Re: Brownian motion

["John S. Denker" <jsd@MONMOUTH.COM>]

At 04:10 PM 11/28/00 -0500, Herbert H Gottlieb wrote:
> To demonstrate Brownian motion, I recall putting a small
> amount of a red powder, (Carmine red??) into a drop of
> water and watching the reaction of the particicles
> when viewed with a microscope.  Isa my memory correct on this??

  http://www.google.com/search?q=brownian+motion+carmine

> Does anyone know a better way of demonstrating Brownian motion??

It's hard to imagine anything much simpler than the carmine pigment.

OTOH if "better" means a brighter signal and more quantitative control of
particle size, there are things you can do

  http://www.genevue.com/A_Diffus/DiffusMain_1.html#anchor1414680