A bell is a simple sound-making device. The bell is a percussion instrument and an idiophone. Its form is usually a hollow, cup-shaped acoustic resonator, which vibrates upon being struck. The striking implement can be a tongue suspended within the bell, known as a clapper, a separate mallet or hammer, or?in small bells?a small loose sphere enclosed within the body of the bell.
Bells are usually made of cast metal, but small bells can also be made from ceramic or glass. Bells range in size from...
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