RE: pinhole models april 9

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From: Paul Doherty (pauld@exploratorium.edu)
Date: Thu Mar 24 2005 - 08:52:22 PST 

Message-Id: <l0311073fbe689ffbfcbe@[192.168.112.4]>
Date: Thu, 24 Mar 2005 08:52:22 -0800
From: Paul Doherty <pauld@exploratorium.edu>
Subject: RE: pinhole models april 9

Hi Coral

I think that it is a good model of warped space producing gravity.
Maybe I'll show this model on April 9.
It's an appropriate model for the world year of physics.

Many science museums use a model with stretched lycra material about 1
meter in diameter with a heavy ball in the middle to stretch the fabric
down into a well. Lighter balls then orbit or fall toward the heavy ball.

Paul D

>
>
>Hi Paul,
>
>
>What is your opinion of the floating aluminum coins on the surface of
>water as a 2-D model of gravity (coin mass altering local space)?
>
>
>-Coral
>
>

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