The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 103
heoperator, notifying him that the line connected to such drop is to beconnected to some other circuit. Calorie or Calory. A practical unit of heat. There are twocalories, respectively called the great and the small calorie, or thekilogram and the gram calorie. The first is the quantity of… … ^ig IS Calorimeter. An apparatus for measuring the quantity of heatevolved or produced by or underdifferent conditions. Dulongs watercalorimeter consists of a water jacket,and by the increase of temperatureof the water and enclosing vesselsthe amount of heat produced byanything in the inner vessels…
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