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ERIC Number: EJ891980
Record Type: Journal
Publication Date: 2007-Mar
Pages: 4
Abstractor: As Provided
Reference Count: 4
ISSN: ISSN-0031-921X
How Circulation of Water Affects Freezing in Ponds
Moreau, Theresa; Lamontagne, Robert; Letzring, Daniel
Physics Teacher, v45 n3 p148-151 Mar 2007
One means of preventing the top of a pond from freezing involves running a circulating pump near the bottom to agitate the surface and expose it to air throughout the winter months. This phenomenon is similar to that of the flowing of streams in subzero temperatures and to the running of taps to prevent pipe bursts in winter. All of these cases appear to support the assertion that "flowing water does not freeze," a myth debunked in the case of shaken water in the December 2004 issue of TPT.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A