Date: Tue, 9 Nov 1999 08:58:58 -0500 (EST)

Author: Steve Wonnell

Subject: Re: Sunset demo

Post:


Chele, This past year I used Carnation powdered milk in a small aquarium.
Powdered milk works fine for showing the effects of scattering, but it's a
bit difficult to control the concentration. I find that one needs to
practice to figure out the amount of powder to produce the desired degree
of scattering. Then, you simply add more powder and stir to increase the
amount of scattering. An advantage over acid/sodium thiosulfate is that
the demonstrator has control over the amount of scattering. Don't need to
worry about the reaction exceeding or falling behind your lecture pace.

Steve W.

On Mon, 8 Nov 1999, Machele Bailey wrote:

> Date: Mon, 08 Nov 1999 16:02:08 -0500
> From: Machele Bailey
> Reply-To: tap-l@listproc.appstate.edu
> To: Tap-L Tap-L
> Subject: Sunset demo
>
> Ok, I've tried and tried over the few years I've been doing this and
> have never been able to get the sunset demo to work satisfactorally with
> the acid and sodium thiosulfate. I've heard that non-dairy creamer
> works just as well...anybody got suggestions for alternate ways of doing
> this? Thanks!
>
> Chele
>
> --
>
> ~~~@~~~@~~~@~~~@~~~@~~~@~~~@~~~@~~~
> Work like you don't need money,
> love like you've never been hurt,
> dance like no one's watching;
> For happiness is a journey,
> not a destination.
> **********************
> Machele Bailey
> Lab Manager
> Physics Department
> Wake Forest University
> (336) 758-5532
> ~~~@~~~@~~~@~~~@~~~@~~~@~~~@~~~@~~~
>
>

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