Sam
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Location: West Midlands
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abdus
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Registered: 23rd Feb 06
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hot
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Steve
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hot
[Edited on 03-06-2006 by Steve]
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Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
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Remembering from A level chemistry it is Hot/Warm water, think the name of this is the Mpemba effect.
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Robin
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agreed. the Mpemba effect, thats what I was thinking
for the idiots on here, please explain why...
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abdus
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Registered: 23rd Feb 06
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http://math.ucr.edu/home/baez/physics/General/hot_water.html#History
http://library.thinkquest.org/C008537/cool/freeze/freeze.html
[Edited on 03-06-2006 by abdus]
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Mistamist
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Hahah, my memory isnt that good, i think it had something to do with densitys and how the water moves in the container (cold water sinking, warm water rising)
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Ry_B
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Hot isn't it, aren't you supposed to use cold water on your wind screen on icy mornings for that reason? Or is that somethin totally different
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Robin
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thats to do with the sudden temperature increase cracking your screen ryan
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Tiger
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I also like the fact that you should never put icecubes in a thermos flash full of cold liquid because the liquid drops to the temperature of the ice quicker than it can warm up, the entire contents of the thermos will freeze.
Ben.
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duffman
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Registered: 11th Dec 05
Location: Widnes, Cheshire
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yeah heat acts as a catalyst (sp) speeding up the reaction in this case freezing. seems weird tho how that happens.
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Skylined
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Registered: 27th Sep 05
Location: Sideways, Surrey
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Never knew that
Hope it comes up on my Physics AS level exam next week
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J da Silva
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Hot, was mentioned in a Science lesson once, although if it's in your AS Levels, then I must have accidently took mine at the age of 14.
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abdus
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Registered: 23rd Feb 06
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cold- 11 votes
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Simon
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Registered: 24th Apr 03
Location: Oxfordshire
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If hot freezes quicker surely at some point it must reach the same temperature as cold water before it freezes so how come it does so quicker? not saying hot is wrong just wondering why
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