Date: Fri, 22 Sep 2000 07:03:53 -0400
Author: Gerald Zani
Subject: Re: ball and feather - 1C20.10
Post:
--=====================_173858465==_.ALT
Content-Type: text/plain; charset="us-ascii"
Jerry,
It is a good thing I don't use the feather. I use a small piece of tissue
paper colored with flourescent hi-liter so it glows brightly with a UV lamp.
It has never stuck to the walls. See
http://www.physics.brown.edu/Studies/Demo/solids/demos/1c2010.html
At 03:48 PM 9/21/00 -0600, you wrote:
> Our ball and feather apparatus does not work as well as it should.
There
>seems to be a static attraction between the feather and the cylinder wall
>which causes the feather to hang up and arrive at the bottom well after the
>ball (it's a dead ball, does not bounce). Does anyone else have this
>problem? Do you use a special feather, or some kind of anti-static
>treatment? Thanks for any suggestions...
>
Fall in N.E. now, colorful foilage, red mac apples, orange pumpkins for
carving, sweet corn for munching. Life is good now. Then comes old man
winter.
JZ
--=====================_173858465==_.ALT
Content-Type: text/html; charset="us-ascii"
Jerry,
It is a good thing I don't use the feather. I use a small piece of
tissue paper colored with flourescent hi-liter so it glows brightly with
a UV lamp. It has never stuck to the walls. See
http://www.physics.brown.edu/Studies/Demo/solids/demos/1c2010.html
At 03:48 PM 9/21/00 -0600, you wrote:
>
feather apparatus does not work as well as it should. There
>seems to be a static attraction between the feather and the cylinder
wall
>which causes the feather to hang up and arrive at the bottom well
after the
>ball (it's a dead ball, does not bounce). Does anyone else have
this
>problem? Do you use a special feather, or some kind of
anti-static
>treatment? Thanks for any suggestions...
>
Fall in N.E. now, colorful foilage, red mac apples, orange pumpkins for
carving, sweet corn for munching. Life is good now. Then comes old
man winter. JZ
--=====================_173858465==_.ALT--