The Technical World Magazine, Volume 10Technical World Company, 1908 |
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Page 123
... heat- ing of the contact surfaces is obtained , because alternating currents tend to de- velop a greater heat at the surface of a large mass than at the central portions . The principle involved in the system of electric welding ...
... heat- ing of the contact surfaces is obtained , because alternating currents tend to de- velop a greater heat at the surface of a large mass than at the central portions . The principle involved in the system of electric welding ...
Page 393
... heat in its various parts . INSTRUMENT FOR MEASURING HEAT OF A STAR BEAM , A concave mirror reflects the beam into the mouth of a tube which contains the " bolometer " -a platinum thread through which an FIGHTING THREE MILES OF ...
... heat in its various parts . INSTRUMENT FOR MEASURING HEAT OF A STAR BEAM , A concave mirror reflects the beam into the mouth of a tube which contains the " bolometer " -a platinum thread through which an FIGHTING THREE MILES OF ...
Page 576
... heat loss by sweat- ing . The evaporation of perspiration absorbs large quantities of heat . The amount of fuel gas re- quired to vaporize a pint of water will convince anyone of this assertion . Oarsmen at Poughkeepsie , N. Y. , in the ...
... heat loss by sweat- ing . The evaporation of perspiration absorbs large quantities of heat . The amount of fuel gas re- quired to vaporize a pint of water will convince anyone of this assertion . Oarsmen at Poughkeepsie , N. Y. , in the ...
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