Wooden Adjustable Organ Pipe, 34.5" Physics_Electricity & Magnetism Brass-tube resonance apparatus designed to

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

Illuminated solar system model with a socket-lit sun

the f/3 curvature stretching the focal throw for demos that need the focal point set comfortably beyond the mirror face

Truncated-cone stainless-steel coil 18cm long with brass wire windings and a 9-9

Taenia solium tapeworm model demonstrates parasitic anatomy

Wooden Adjustable Organ Pipe, 34.5" Physics_Electricity & Magnetism Brass-tube resonance apparatus designed toPolished 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.