Date: Mon, 14 Oct 2002 11:23:54 -0400 (EDT)

Author: Richard Berg

Subject: Re: DIY large hoot tubes

Post:

We use an 8 foot long galvanized iron tube and a nichrome heater that is
inserted about 2 feet up the tube. It gives a very loud roar between 65
and 70 Hz.

http://www.physics.umd.edu/lecdem/services/demos/demosh3/h3-13.htm

A photograph of the heater is linked to the demonstration photo and
description. To do the demonstration you just plug in the heater coil.

Dick Berg

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Dr. Richard E. Berg, Director Phone: (301) 405-5994
Lecture-Demonstration Facility FAX: (301) 314-9525
Department of Physics e-mail reberg@physics.umd.edu
University of Maryland www.physics.umd.edu/lecdem
College Park, MD 20742-4111
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Eschew obfuscation.
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