Bell in Vacuum Jar

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WARD470152-830
470152-830KT 205.89 CAD
470152-830
Bell in Vacuum Jar
Prove that sound is not transmitted through a vacuum with this device.
It consists of a 2 liter bell jar (13 cm diameter x 23 cm tall), a rubber stopper with binding posts and connectors, and a suspended electric bell that operates on 3-6 V. A vacuum plate is required, but not included.



   
 

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