To demonstrate different conductivities of different metals. Rods of 5 different metals and wood, fitted along one side of a metal tank.

Consisting of a galvanized iron box with 130 mm sides. The vertical faces are blackened dull, blackened bright, white, and polished respectively, with a tubule at the top for the thermometer. Supplied with the thermometer.

To demonstrate the phenomenon of heat absorption and radiation between different surfaces. One 12V bulb is used as heat source and two parabolic metal discs used as different bodies, one slot is provided behind the discs to hold the thermometer. Two sockets are provided for power input. with two thermometers & plain glass.

With 1.5 – 4.5 V motor with a 15 mm Diam. ‘V’ Pulley on base with terminals.

Steel fly wheel 100 mm diam. with pulley 20 mm dia. on shaft held in brackets, mounted on base.