Bell in Vacuum - Acrylic

PH0176CN8_Bell_in_Vacuum_Acrylic.jpg
PH0176CN8_Bell_in_Vacuum_Acrylic.jpg

Bell in Vacuum - Acrylic

A$74.00

Code: PH0176CN8

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Demonstrate that sound requires air to travel through with the Bell in Vacuum Jar set. Jar measures approximately 25 x 14cm.
Slowly decrease the air inside and hear the sound disappear. Electric bell operates on 4-6V DC.
Includes: (1) Bell Jar, (1) Electric Bell, (1) Rubber cork with terminals.

Requires a vacuum pump (not included).