Economy Thermal Conductivity of Metals Apparatus Subject_Zoology Twelve-inch friction rod machined half

Twelve-inch friction rod machined half from ebonite and half from brass

sized for breadboarded circuits where the standard 4mm patch wires would overrun the apparatus footprint

the optical-grade body delivering cleaner refraction angles than acrylic peers for precision Snell's law work

25-inch aluminum wheels

sized for precision-resistor and thermocouple work where stable resistance matters

Economy Thermal Conductivity of Metals Apparatus Subject_Zoology Twelve-inch friction rod machined halfEconomy wooden ring conductivity apparatus with copper, iron, aluminum, and brass strips radiating to the rim, heating the center to show each metal's relative conduction rate.