Purchasing a whistle kettle will give you peace of mind while brewing your favorite tea or coffee.When you boil water, the lid will sound a whistling noise to alert you that the water is boiling. A thumb-press on the lid will open the spout. It is an excellent addition to any kitchen counter. This

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.

The whistle sound produced by a whistling teapot is based on the same mechanism as that of an organ pipe or flute. The length of the spout determines the pitch of the sound; a shorter spout produces a higher pitch and a longer spout makes a lower pitched whistle.