On Sep 23, 2008, at 6:12 AM, Esa Ruoho wrote:
 if you
have two identical jars, one with water at 40c and one with water at
200c, if you place them in a fridge at a lower temperature than
either,  the one with the greater amount of temperature actually meets
the fridge temperature quicker than the one closer to the fridge
temperature.


This effect is not new. It was observed by Aristotle, Bacon, and Descartes. It is now called by some "The Mpemba Effect". This was discussed here in 2001. Here's my take on it:

http://www.mtaonline.net/~hheffner/Mpemba.pdf

I assume the "200c" temperature above is a typo.

Best regards,

Horace Heffner
http://www.mtaonline.net/~hheffner/




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