Re: Brownian motion

["Bernard G. Cleyet & Nancy Ann Seese" <georgeann@REDSHIFT.COM>]

Stinko made a cell with a bulb to vacuum in smoke particles and an incorporated
illuminator ~ 100 X microscope required.

The UCSC UD lab. still does "The Brownian Motion Experiment."

Stabilized LASER, multiplier phototube, pre-amp., and HP audio spectrum
analyzer.  Students to find functional relationships of angle and particle size
(EM std. latex spheres)  fit the  Lorentzians, and compare to Einstein
relationship.

bc


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