Here's a simple bar trick that you can pull off at your next alcohol-fueled gathering. Tap one beer bottle against another to freeze both beer bottles into solid ice in 2 to 3 seconds.
So how does this work?
All you need to do beforehand is place both beer bottles in the freezer for 3 to 5 hours. When you leave a bottled beverage in an environment that is as cold or colder than zero-degrees centigrade, the liquid molecules become suspended in a state of temperature that is less than zero-degrees centigrade. When you take the bottled beverage out of freezing temperature and tap it against a countertop or other hard surface, this disturbs the molecules and causes a chain reaction which results in the near-instantaneous formation of an ice crystal.
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