Resonant Tuning Fork Pair on Pine Boxes with Mass and Mallet, 440Hz cylinder 38mm lens holder

38mm lens holder

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

Short-form Euro-design 500mL polypropylene measuring pitcher features molded graduations and a pour spout for autoclavable chemical-resistant workflows

Low-noise 220V blower with a detachable 60-inch hose and adjustable flow control

Resonant Tuning Fork Pair on Pine Boxes with Mass and Mallet, 440Hz cylinder 38mm lens holderUsed 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.