Description
Six standardized objects mounted in 2 x 2 inch plastic frames
Reproduces Oersted's 1820 experiment
Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed
Brass-wire conductor and seven plotting compasses on a clear base
Resonant Tuning Fork Pair on Pine Boxes with Mass and Mallet, 440Hz cylinder Six standardized objects mounted inUsed 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.
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