If you are a tea lover, you've probably heard about a whistling teapot. These pots produce sounds when you pour hot water. But the whistle isn't the only sound that a whistling teapot makes. Two scientists from Cambridge discovered that a different mechanism produces a similar sound.

A whistling kettle is a great way to make a large quantity of water. The spout of the kettle is narrower than its handle, so it's easy to open and close it with a finger or thumb. The whistle is made of a natural, unstable substance, which is why it doesn't sound like a normal column of water after a certain distance.

The best whistling tea kettle is one that uses the full power of a big burner to reduce the boiling time. The whistler is usually made of stainless steel, but some models are made of plastic. The base is ultra-wide, so the kettle can utilize the full power of a big burner.