Wooden Adjustable Organ Pipe, 34.5" Physics_Electricity & Magnetism Used to demonstrate broad pole-separation

Used to demonstrate broad pole-separation effects

Wider 70 x 20 x 8mm cross-section on this Alnico bar pair gives a broader pole face than typical bar magnets

Brass-tube resonance apparatus designed to amplify a struck tuning fork at specific air-column lengths

Designed to measure Planck's constant through the photoelectric effect

Wooden Adjustable Organ Pipe, 34.5" Physics_Electricity & Magnetism Used to demonstrate broad pole-separationPolished wooden organ pipe 34. 5 inches long with no fixed pitch, sliding through a full octave from C5 (521Hz) to C6 (1024Hz) for hands on comparison of length to fundamental frequency.