Re: pinhole Re: Skipping Stones

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From: John or Jan Lahr (JohnJan@lahr.org)
Date: Fri Apr 29 2005 - 08:08:10 PDT 

Message-Id: <6.2.1.2.2.20050429085717.026faff8@mail.comcast.net>
Date: Fri, 29 Apr 2005 09:08:10 -0600
From: John or Jan Lahr <JohnJan@lahr.org>
Subject: Re: pinhole Re: Skipping Stones

Not the same as skipping stones, but another interesting example of the
interaction of water with a solid object is the demonstration shown here:
http://www.jclahr.com/science/physics/ball_in_glass_drop/

When a glass of water with a ping pong ball floating in it is dropped
a few inches onto a table the ball bounces up many inches.

A fun challenge is to ask someone to remove the ping pong ball
without reaching into the glass!

Cheers,
John

At 02:39 AM 4/29/2005, you wrote:
> >From a physicist's standpoint:
>
>"The Physics of Stone Skipping" by Lyderic Bocquet, American Journal of
>Physics, Vol. 71, No. 2, February 2003
>
>The author made this article available to those interested in the subject
>by putting the article up on the web:
>
>a. The following link will download a pdf file of the article (copy it into
> URL field of your browser and press return):
>
> lpmcn.univ-lyon1.fr/~lbocquet/AJPricochets.pdf
>
>b. An HTML version of the article (courtesy of Google) can be viewed at:
>
>http://64.233.187.104/search?q=cache:hli8hLMWiVwJ:lpmcn.univ-lyon1.fr/~lbocquet/
>AJPricochets.pdf+stone+skipping+explanation&hl=en
>
>
>
>
>
>For the rest of us, there is:
>
>http://news.nationalgeographic.com/news/2004/01/0107_040108_stoneskipping.html
>
>Where Bocquet breaks it down into plain English.
>
>Enjoy.
>
>ron
>
>
>
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