How does a kettle boil water so quickly?
Kettle's Heat Laser
How does a kettle boil water so quickly?

You fill the kettle, flip the switch, and two minutes later — steam whistles and bubbling water rushes inside. How does it heat up so fast when a pot on the stove takes forever?
Inside the kettle, hiding at the bottom, is a flat metal plate called a heating element. When you flip the switch, electricity rushes through a tightly coiled wire inside that plate — and here's the trick: the wire fights the electricity. It doesn't want the current to flow through. That fighting creates heat, the same way rubbing your hands together warms them up.
