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Uses of the Air Pump

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  p-161

2025-11-11

491

There are many practical uses of the air pump, among them its application to " vacuum pans" for the making of sugar, in which the pressure is kept low, so that evaporation will take place at a lower temperature and the sugar will not be burned. Another important use of the air pump is in the manufacture of incandescent lamps and thermos bottles.