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Title: Bell in a Vacuum
PIRA: 3B 30.30

Demonstrates: Sound does not travel in a vacuum.
Description: A bell is inside a bell jar which can be evacuated.

Instructions:

Items Used:

Notes: Bell rung in partially evacuated jar can barely be heard. Math Description: None.

Size: 63" h x 28" w Condition: Good. Hazard: Very heavy. Toe stubber.

Schematic: None. Tech Specs: None. Web Links:
History:

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