Re: Re: F1M Cat 1 record upped again

From: Phedon Tsiknopoulos <phedon21t_at_yahoo.com>
Date: Mon, 17 Mar 2014 11:39:48 -0700

Yes, it has a Negative Coefficient of Expansion.
Ciao, Phedon.

Sent from my iPhone

On Mar 17, 2014, at 6:17 AM, <j.bartek_at_sbcglobal.net> wrote:

> In 1972, I built a science demonstration built on this effect. It followed the example of a Scientific American article, and consisted of a 16 mm film reel festooned with rubber bands dipping into a trough of warm water. After a little start it would keep rotating as long as there was a temperature difference between the water and the air. Unlike a lot of things, rubber shrinks as it is warmed.
>
>
Received on Mon Mar 17 2014 - 11:40:02 CET