For showing the difference in conductivity.
Rod 300 x 18 mm half brass & half polished wood.
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Represents internal structure and operating principles of an air-cooled two stroke engine All parts in aluminium alloy. Ignition is shown by means of a mainature bulb. Carburetter and fuel supply also sectioned. Mounted on base, with printed diagram showing working.
The engine model comprises a section cut metal cylinder covered with transparent acrylic plate to observe the working parts -piston, valves, link motion and reversing methods.
The movement of wheel is very light to demonstrate the working even by blowing through mouth. Mounted on a moulded metal base.
Consisting of a nickel plated copper vessel with outer vessel of teak wood fitted with bakelite top with hole for thermometer, terminals connected to a coil of wire complete with stirrer & outer teakwood vessel for determining the specific heat capacity of liquid by electrical method
Heavy cast iron base with 4 uprights, on one end of which is fitted a hand nut, the other drilled with holes to carry a cast iron rod bearing against narrow flats with 12 cast iron breaking rods to show force of contraction or expansion
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