Date: Wed, 10 Sep 2003 07:47:27 -0400

Author: Clarence Bennett

Subject: Re: Silica Sand Safety

Post:

At 21:17 -0400 9/9/03, gnunes wrote:
>All sand is silica (more or less).

I guess you haven't been to Waikiki Beach.


--



Clarence Bennett
Oakland University Physics
Rochester, Michigan
248 370 3419
248 377 4048
From rands@ltu.edu Wed Sep 10 09:19:40 2003
Date: Wed, 10 Sep 2003 09:20:09 -0400
From: Marilyn Rands
Subject: Magnetic spiderman
To: tap-l@listserv.appstate.edu
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In response to a student's question, Jeff Whittaker,
a local physics teacher, has developed a magnetic spiderman outfit. Go to
physicslessons.com/spider.htm to see pictures.
Talks are underway to have him appear on the David Letterman show.
From reberg@physics.umd.edu Wed Sep 10 10:22:57 2003
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Date: Wed, 10 Sep 2003 10:25:47 -0400 (EDT)
From: Richard Berg
To: tap-l@listproc.appstate.edu
Subject: Re: Silica Sand Safety
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Isn't it also effected by the nature of the dust - stuff that is water
soluble can be flushed from the lungs byu their normal cleansing process.
Not so with water insoluble dust - at least it takes a LOT longer.

Dick Berg

On Tue, 9 Sep 2003, gnunes wrote:

> All sand is silica (more or less). People get lung disease from
> breathing coal dust, cotton dust, silica dust, asbestos dust, concrete
> dust,... Can we detect a common theme here? Wear a dust mask when you
> are pouring the sand from its bag into the smaller containers. After
> that, you (or the students) are unlikely to breathe significant
> quantities. (I would not bet a nickel that flour dust is any safer than
> any of the other dusts!!)
>
> -Geoff Nunes
>
>
> > Andy Smith wrote:
> >
> > Hello Tap'l-ers,
> >
> > I have a safety question for you. In the past we have performed a
> > cratering formation lab by dropping metal balls into a box of sand.
> > The sand that we have found to produce the best results was silica
> > sand. On acquiring another 100lb bag of the stuff, I found a rather
> > large warning label about possible health problems caused by the
> > sand. Does anyone else use silica sand or have any information on the
> > dangers of using it in a two hour lab? Also, does anyone else perform
> > cratering labs with a different material?
> >
> > Thanks for all your valued help. -Andy.
> >
> > ******************************************
> > Andy Smith
> > Lab Supervisor/ Part-time Instructor
> > DePauw University Physics
> > Greencastle, IN
> > ******************************************
>
>

***********************************************************************
Dr. Richard E. Berg, Professor of the Practice, Department of Physics
Director, Physics Lecture-Demonstration Facility
U.S. mail address:
Lecture-Demonstration Facility
Department of Physics
University of Maryland
College Park, MD 20742-4111
Phone: (301) 405-5994
FAX: (301) 314-9525
e-mail reberg@physics.umd.edu
www.physics.umd.edu/lecdem
***********************************************************************
From dimarco@physics.montana.edu Wed Sep 10 10:29:13 2003

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