Eisco Thermal Conductivity of Metal Apparatus

Comprising strips of copper, iron, aluminium and brass fixed to a wooden ring, this economical apparatus demonstrates the varying speeds of heat conduction along differing metal strips.The outer ends of the metal strips have small recesses for holding paraffin wax. By heating the centre where the four strips meet, the wax can be seen to melt at different times, governed by the conductivity of the four different metals.