Description
Flexible spine model demonstrates vertebral movement
Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed
Fitted with a wide-grip handle and tapered pouring spout
Demonstrates Hooke's Law
Resonant Tuning Fork Pair on Pine Boxes with Mass and Mallet, 440Hz cylinder Flexible spine model demonstrates vertebralUsed to demonstrate beat frequencies and sympathetic resonance, this pair of 440Hz steel forks sits on pine resonance boxes (7. 5 x 4 x 2. 5 inches) with one fork carrying an adjustable tuning mass.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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