Date: Wed, 15 May 2002 11:53:27 -0400

Author: Gerald Zani

Subject: Re: Inertia Ball



You can do the table cloth pull.

You can do the break the broomstick trick.

You can do the pen in bottle trick with an embroidery hoop.

You can do the full bottle balanced upside down on top of an empty bottle
with a dollar bill trick.

You can also do a series of masses and strings if you read your very own
published article (pun fully intended): Mark A. Heald and George M.
Caplan, Which String Breaks?, TPT 34, 504-507 (1996).

At 08:12 AM 5/15/2002 -0400, you wrote:
>I will be doing a demonstration for alumnae soon.
>I plan to do an inertia ball demonstration. i.e. I plan to tie
>two strings to a weight and hang the weight by one of them.
>If I pull slowly on the bottom one, the upper one
>breaks. If I pull quickly, the lower one breaks.
>Do any of you know of any videos (especially high speed videos) of this?
>Also, can you suggest any related demos?