Bell in Vacuum Jar, Acrylic, 4-6V DC Pack Size_100 Sliding-rail aluminum bench with 1

Sliding-rail aluminum bench with 1

Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed

Studies oblique collisions between steel balls on a flat surface

demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb

Plug-in 120V AC blower sized to feed a linear air track

Bell in Vacuum Jar, Acrylic, 4-6V DC Pack Size_100 Sliding-rail aluminum bench with 1Acrylic bell in vacuum jar with an internal 4 6V DC electric bell that fades and falls silent as the enclosed air is removed, visualizing sound transmission dependence on a medium.