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From: Dan Crowl <crowl**At_Symbol_Here**MTU.EDU>
Subject: Re: Water Hammer Hazard
Date: Nov 27, 2006 21:17 UTC
Reply-To: <4E2E6B81A1D0FE4E8E2B01F5FE9A012606866D80**At_Symbol_Here**newman.umhb.edu>
In-Reply-To: <4E2E6B81A1D0FE4E8E2B01F5FE9A012606866D80**At_Symbol_Here**newman.umhb.edu>
Ruth, My physics teacher in high school had the same result the first time he used the device in class! That was in 1966! I bet it is the same device! Dan Crowl Professor of Chemical Engineering Michigan Tech University Houghton, MI Murphy, Dr. Ruth Ann wrote: > Dear CHAS Members: > > A water hammer (lecture demonstration device) broke this month when > lowered, sending glass flying in my classroom. The water hammer is > designed to make a loud noise when properly lowered; however this > hazard, previously unknown to me, should require strict warnings for its > use, or the substitution of something safer. > > Ruth Ann Murphy, Ph.D. > Chemistry Dept. Chairperson and Professor > The University of Mary Hardin-Baylor > 900 College Street > Belton, TX 76513-2599 > Phone (254) 295-4542 > Fax (254) 295-4237 > >