INDEX 



795 



Conductivity — continued 

 glass, 396 



high-frequency, 396 

 metals, 384, 389 

 molecular (specific), 398 

 nonconductors, 428 

 oxides, 395 

 plastics, 239 

 pressure effects, 388 

 rocks, 395 



salts (solutions), 398 

 soils, 395, 440 

 solids, 395 

 solutions, 397 

 specific molecular, 398 

 super, 394 



alloys, 394 



compounds, 394 



metals, 394 

 tellurium, 380 



temperature coefficient, 390, 391 

 tension effects, 387 

 thermal (see Thermal conductivity) 

 Conductor, resistance of, 11 

 Cones in eye (see also under Eye), 90 

 Constants: critical gases, 276 

 mathematical, 25 

 physical (see also Units), 47, 51, 54 



Bearden and Watts, 54 



Birge, 47 



DuMond and Cohen, 51 

 radiation, 80 

 Constellations, abbreviations, 743 

 Contact potentials: liquids, 376 

 solids, 376 



various metals, 379-381 

 Continents, 772 

 area, 772 

 highest point, 772 

 lowest point, 772 

 Convection of heat, 114 

 air, 114 

 cooling by, 112 

 gases, 115 

 pressure, 115 

 temperature, 114, 115 

 Conversion factors, 2, 57 



Centigrade to Fahrenheit, inside front 



cover 

 dimensional formulas, 2, 58, 59 

 Fahrenheit to Centigrade, inside front 



cover 

 formulae, 57 



methods of calculating, 2, 57 

 units: ampere turns to ordinary, 18 



area, 60, 781 



atomic mass to Mev, 54 



British imperial to metric, 67 



capacity, 60, 62,781 



changing, 57 



conduction of heat, 137 



density 

 API, 290 

 Baume, 289 



electrical equivalents, 20 

 former, 22 



electricity, 10, 20, 781 

 international to 1948, 20 



Conversion factors, units — continued 



National Bureau of Standards to 



international, 20 

 three systems, 20 

 energy, 17, 20, 21 

 flow, 781 

 molecular, 618 

 gage pressure (lb. /in. 2 ) to atmosphere, 



267 

 gas laws, 260, 267 

 gaseous states (thermal), 268 

 general, 781, 785 

 gravitational, 782 

 heat, 58, 784 

 flow, 136 



for different gradients, 137 

 illumination, 93, 94 

 length, 60 

 linear, 60, 782 

 magnetic quantities, 16, 18 

 mass, 60 

 metric, to British, 64, 66 



to U.S.A., 61, 63 

 Mev to atomic mass, 21, 53, 54 

 miscellaneous, 63, 781, 785 

 molecular energy, 618 

 paper measure, 783 

 photometric, 93, 94, 783 

 photometry, 93 

 brightness, 93 

 illumination, 93 

 pressure, 277, 783 

 radiation, 136 

 resistivity, 784 

 speed, 784 

 temperature, 784 



per area, 784 

 thermal, 784 

 time, 784 



U.S. customary to metric, 61-63 

 volume, 60, 785 

 wavelength, 509 

 weight, 785 



per volume, 785 

 Cooling: by convection, 112 

 by radiation, 112 

 effect of pressure, 112 

 platinum wire, 113 

 Copper (see also under Wire), 198 

 alloys, properties, 198 

 freezing point, 72 

 high conductivity, 404 

 mechanical properties, 198 

 resistance standards, 404 

 wire, 208 



annealed, 208 

 characteristics, 408-414 

 medium hard, 208 

 ratio, ac-dc resistances, 419 

 resistance, to compute, 416 



temperature coefficient, 406 

 safe carrying capacity, 416 

 soft. 208 



specification values, 208 

 standard annealed, 408 

 Core losses, electric steel sheets, 456 

 Cosines, 32 



