Aquí http://www.school-for-champions.com/science/mpemba.htm ‘Taathira ya Mpemba’ Mpemba effect School for Champions ‘Taathira ya Mpemba’ The Mpemba Effect: Hot Water Freezes before Cold The Mpemba Effect: Hot Water Freezes before Cold Mpemba effect http://www.school-for-champions.com/science/mpemba.htm The Mpemba Effect: Hot Water Freezes before Cold