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Buzzer in a Vacuum

Buzzer in a Vacuum

Buzzer in a Vacuum

To demonstrate that sound requires a medium, the bell gets fainter as the air is pumped from the container. A safety mesh is included that completely covers the container.

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$54.95

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To demonstrate that sound requires a medium, the bell gets fainter as the air is pumped from the container. A safety mesh is included that completely covers the container.

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