Linear Expansion Apparatus with Aluminum, Brass, and Iron Rods, 18cm Electricity & Magnetism_Magnetism Three-part medical-quality human skull model

Three-part medical-quality human skull model with a removable calvarium and articulated mandible

98-inch outer diameter sit on a needle-supported balance bar

induced current

Two independent output channels on this compact AC/DC power supply deliver six selectable voltages up to 12V at 500 mA each

each topped with a small handling knob and stored in a hardwood block for classroom balance coursework

Linear Expansion Apparatus with Aluminum, Brass, and Iron Rods, 18cm Electricity & Magnetism_Magnetism Three-part medical-quality human skull modelCast iron uprights support a 38cm expansion bar against a friction pointer dial reading 0 to 90 degrees, supplied with aluminum, brass, and iron rods for linear expansion comparison.