Bulletin of the Bureau of Standards, Volume 12U.S. Government Printing Office, 1916 - Physics Contains results of investigations, researches, etc., pertaining to scientific, technical and manufacturing interests of the country. |
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absorption glass amperes approximation bimetallic bimetallic wires black body bolometer Brass slits Bulletin Bureau of Standards calculated calibration calorimeter candle candlepower cent cp circular coefficient coils comparison computed conductor copper correction corresponding cross section crucibles curve determined diameter diaphragm difference direct current distance effective resistance effective wave length electrical energy equation error etalon experimental factor Féry filament formulas frequency galvanometer given increase instrument internal inductance iridium iron kilometer lamp lampblack logarithms manganin maximum force measurements mercury metal method microhenrys mirror observed obtained oxide permeability photometer plate platinum platinum black potential terminals potentiometer pyrom pyrometer radiation constant radiation pyrometer ratio readings receiver red glass reflection resistance and inductance rhodium rotation scale specific heat speed strip surface Table temperature thermocouple thermometer thermopile thickness tion variation voltage volts watt wave length