When you're waiting for a pot of water to heat up on the stove, tiny bubbles are the first sign it's getting ready to boil. As the water gets hotter, the bubbles get bigger, until a rolling boil ...

Boiling water is one of those simple things that hides fascinating science. You see bubbles rising in a pot on the stove, but when you heat water in a microwave, it often stays still. The difference ...