Scientists offer public $1,600 to crack cold case

A scientific phenomenon has stumped scientists for centuries -- even Aristotle couldn't crack it. Now the frustration has grown so unbearable that the brainiacs are turning to you, yes you, to help solve the mystery of why hot water freezes faster than cold water. If anyone can make a "convincing case," they could pocket a $1,600 reward. Hurry up and get your H20 know-how in check as you only have until July 30 to submit ideas to The Royal Society of Chemistry in London. The winner will need to "employ some creative thinking," said the society's Brian Emsley, as many theories have been proposed over the years but none proven. Break out the ice trays and start tinkering!