And nobody understands exactly why. The British Royal Society offered a 1,000 pound prize recently for an explanation, so far this is the winner, though it's n

And nobody understands exactly why. The British Royal Society offered a 1,000 pound prize recently for an explanation, so far this is the winner, though it's not complete: http://www.rsc.org/mpemba-competition/mpemba-winner.asp http://www.rsc.org/mpemba-competition/mpemba-winner.asp