does hot water freeze faster?

There was a braingle brain teaser based on the claim that hot water freezes faster than cold water, known as the Mpemba effect, but I found out that there’s quite a bit of controversy on the veracity of the claim.

There was also quite a bit of discussion on the braingle web site itself.

The answer seems to be, “it depends.”


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  1. That has been an on-going debate in my family for years! Except, we didn’t discuss Vodka from the tap – boy were we missing out! Anyway, your conclusion really sums up the conundrum, thanks – uh, I think?

    Comment by Babs on June 8, 2006 @ 8:08 pm
  2. Oh you’re quite welcome. I can provide wishy washy conclusions anytime :)

    Comment by dan on June 8, 2006 @ 9:35 pm

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