the big freeze

THE EFFECT: the magician pulles out a bottle full of liquid from a place off stage, he takes a second bottle and gently bangs the two together, then the first bottle freezes!,THE SECRET: the night bofore the trick the magician places a bottle of water on it's side in the freezer, he lets it freeze over night, when the trick begins he pulles the bottle out of the freezer and slowley bangs it with the other bottle and it should instantly freeze, the reason why this works is because when the bottle is on its side the cells in the water are moveing quickly that slowes the celles at a fast rate,causeing it to freeze instantly. also! do not move the bottle to quickly or it will freeze to early!