Physics-> Heat

[1] 2 3 4 5 [ Next»]   Click to Enlarge Ball and Ring This brass ball and ring demonstrates thermal expansion of the metals. The ball passes through the ring freely when both are at same temperature whereas the ball will not pass through the ring when heated. Comprises of a 25mm dia brass ball and a brass ring both attached to separate wooden handles. See Enlarge Click to Enlarge Ball and Ring with Chain This brass ball and ring demonstrates thermal expansion of the metals. The ball passes through the ring freely when both are at same temperature whereas the ball will not pass through the ring when heated. Comprises of a 25mm dia brass ball attached to the ring with a chain. See Enlarge Click to Enlarge Heat Conductivity Apparatus For demonstrating the rate of heat conduction in five different metals. The kit consists of five metal rods, approximately 20mm in diameter and 40mm long equally spaced on a brass disc and mounted on an insulated handle. The rods are aluminium, brass, copper, iron and steel and each having a cavity at the end for holding paraffin. See Enlarge Click to Enlarge Convection in Air Apparatus For showing convection currents in air. Comprises of metal box, 220x100x100mm with a removable glass front, two chimneys and candle holder fixed to the base of the box beneath the left hand chimney. See Enlarge Click to Enlarge Crook?s Radiometer For demonstrating the mechanical effect of reflection and absorption of light and heat. Partially evacuated glass bulb has four vanes which spin on low friction pivot. Alternate vanes are dark and white in colour. See Enlarge Click to Enlarge Specific Heat Set Set of six metal cylinders, diameter 20mm, of equal mass of aluminium, brass, copper, iron, lead and zinc. The cylinders are mounted in wooden stand and are drilled for suspension. See Enlarge Click to Enlarge Demonstration Steam Engine Model, Locomotive Type Actual working sectional model showing cross section of the piston and slide valve, method of turning steam on and off. All parts such as crankshaft, valve, control, drive wheel etc. are clearly shown. See Enlarge Click to Enlarge Sectional Model of 2-Stroke Petrol Engine All parts made in aluminium alloy and metal. Ignition is shown by means of a miniature bulb. Carburettor or fuel supply also sectioned. With a crank handle for manual operation. Mounted on a metal base Height overall 34cm approx. See Enlarge Click to Enlarge Sectional Model of 4-Stroke Petrol Engine All parts made in aluminium alloy and metal. Ignition is shown by means of a miniature bulb. Carburettor or fuel supply also sectioned. With a crank handle for manual operation. Mounted on a metal base. Height overall 38cm approx. See Enlarge Click to Enlarge Sectional Model of 2-Stroke Diesel Engine All parts made in aluminium alloy and metal. Ignition is shown by means of a miniature bulb. Fuel supply also sectioned. With a crank handle for manual operation. Mounted on a metal base. Height overall 39cm approx. See Enlarge Click to Enlarge Sectional Model of 4-Stroke Diesel Engine All parts made in aluminium alloy and metal. Ignition is shown by means of a miniature bulb. Fuel supply also sectioned. With a crank handle for manual operation. Mounted on a metal base. Height overall 43cm approx. See Enlarge Click to Enlarge LIQUID CONVECTION APPARATUS For demonstrating the phenomenon of thermal convection in liquids caused by temperature variation. Consists of a rectangular shaped borosilicate glass tube (w x h), 15 x 21cm with a funnel shaped opening at the top for filling liquids. When this tube is partially filled with water and heated at one corner after adding a dye or potassium permanganate crystals or saw dust or aluminum powder, the movement of colors or particles illustrates the formation of convection currents. See Enlarge Click to Enlarge GAS CONVECTION APPARATUS (VENTILATION APPARATUS, CONVECTION BOX) For demonstrating the phenomenon of convection in air and the principle of room ventilation. Consists of an enamelled metal box (l x w x h), 20 x 10 x 10cm, having a sliding glass door and two glass chimneys. When a candle in a socket is placed under one chimney and a smouldering tape or touce paper is placed underneath the other chimney, the flow pattern of smoke dramatically illustrates the formation of convection currents. Candle, socket, tape or touce paper are not supplied. See Enlarge Click to Enlarge LINEAR EXPANSION APPARATUS (MICROMETER FORM) For accurately measuring the coefficient of linear expansion of electrically conducting materials such as metal rods. Consists of a frame of thermally rigid material consisting of two cast end pieces connected by two steel rods which appropriately hold a plated brass pipe (l x d), 500 x 25mm. The pipe acts as a steam jacket and is fitted with steam inlet and outlets as well as a tube suitable for inserting a thermometer through a rubber stopper. The pipe jacket is held in proper alignment with the help of two metal yokes, requiring minimal adjustment while removing or inserting the rod under study. One of the yokes has a knurled thumb screw to lock the steam jacket in place. The expanding rod makes contact with a 0.01mm micrometer which measures the extent of expansion when steam is passed through the jacket. The exact point of contact of the rod and the micrometer is found with the help of an indicator lamp. The design avoids use of loose wires. Supplied with three rods of brass, copper and steel. Steam generator and thermometer are not included. See Enlarge Click to Enlarge STEAM TRAP (WATER TRAP) For preventing condensed water being carried over with steam prepared in a laboratory steam generator. Particularly useful when determining the heat of vaporisation with a steam calorimeter. Consists of a borosilicate glass chamber with a curved inner tube to prevent drops of condensed steam from escaping, as well as a drainage tube. See Enlarge [1] 2 3 4 5 [ Next»] Go to Top