Description

supporting up to three pendulums simultaneously for harmonic-motion work

Plated spring arm with press knob and a single contact stud

measuring period under different loads to isolate mass from weight

Pack of 12 metal lattice support clamps fitting rods up to 12

Single Contact Morse Code Key Base_Octagonal supporting up to three pendulumsPlated spring arm with press knob and a single contact stud, configured to make and break a circuit at the rhythm of a Morse code transmission for telegraph history demonstrations.

Exchange/Return Notes

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Single Contact Morse Code Key Base_Octagonal supporting up to three pendulums

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