What whistle is made of

A sound signal made by a stream of air.

• Mouthpiece — has part. A channel for blowing in air.
• Whistle edge — has part. A sharp edge that splits the air stream.
• Resonant chamber — has part. It sets the pitch.
• Sound wave — uses. The sound of a flow.
• Resonance — uses. Resonance of the chamber.
• Bone — is made of. Ancient whistles were carved from bone.

Whistle

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