On Wed, 1 Mar 2000, Steffen Wilson wrote:

> A student asked in class today why we cry when we cut an onion-anyone know for
> sure?

Way, way, _way_ more than you want to know about this topic is
available at:

http://www.sciam.com/askexpert/chemistry/chemistry1.html

You've been warned!

(the authority, I'm happy to say, is a biopsychologist: Dr. Thomas
Scott of the Department of Psychology, University of Delaware)

-Stephen

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Stephen Black, Ph.D.                      tel: (819) 822-9600 ext 2470
Department of Psychology                  fax: (819) 822-9661
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