Physics Lab

Consists of a polished teakwood stand approx. 750 mm high fitted with a wooden scale reading from 0 to 60 cm x 1 mm & supporting an adjustable mercury reservoir by a metal rod.
A detachable air thermometer bulb about 70 mm diameter connected via three way stop cock to mercury tube with zero index fused inside its upper end. A metal vessel surrounding the bulb supported by detachable metal shelf mounted on insulated asbestos screen. Mounted on a teakwood stand with a deep tray which serves to catch any mercury spilled accidentally from the reservoir. Supplied complete with 1 meter of rubber pressure tubing 10 mm outer diameter & 5 mm bore for connecting the reservoir to the bulb.

For determining the specific heat of water or similar liquid. Consists of a glass tube 100 mm long with heating element (electric wire).
Two screw terminals are provided at the ends of the tube for electric supply. The horizontal tube is connected by means of rubber bungs to the inlet & outlet system. Each having a vertical expansion to accommodate the thermometer. A stream of water is made to flow through the glass tube & heated by the spiral by passing electric current. With the help of an adjustable constant boil tank, the rate of flow is kept constant. The rise in temperature of water is measured by two thermometers. The whole apparatus is mounted on a polished wooden base approx. 625 x 130 mm in size. Supplied with thermometer.

Comprising partly evacuated having two bulbs with two sets of vane, containing at its centre a fine pivot which supports four light weight metal arms. One side of each vane is blackened; the reverse side is bright, mounted on round base.

When exposed to sunlight, the vanes rotate in opposite directions.