810 



SMITHSONIAN PHYSICAL TABLES 



Magnetic — continued 



sheets (electrical), 456 



core losses, 456 

 steel, 456 

 carbon, 454 

 composition, 465 

 electrical sheets, 456 

 permeability, 458 

 sheets, 456 

 temperature, 459, 461 

 transformer, 459 

 core loss (ac), 456 

 energy loss, 459 

 tungsten steel, 454 

 reluctance, 12 

 susceptibility, 13, 18 

 atomic, 451 

 materials, 462 

 molecular, 451 

 specific, 451 



temperature effects, 461 

 units, 16, 18 

 Gauss, 18 

 Gilbert, 18 

 Maxwell, 18 

 Oersted, 18 

 pole, 451 

 Magnetism (see also Magnetic) : Curie con- 

 stant, 461 

 definitions, 18, 451 

 demagnetization factor for rods, 467 

 diamagnetic substances, 451, 461 



susceptibility vs. temperature, 461 

 dissipation of energy, 460 

 energy losses, 460 

 ferromagnetic substances, 451 

 hysteresis, 451, 460 



Steinmetz constant, 460 

 magnetic substances, 451 

 moment, 451 

 paramagnetic substances, 451, 461 



susceptibility vs. temperature, 461 

 quantity of, 12 



and resistance (see Resistance), 463, 

 465 

 resistance effects: bismuth, 463 

 nickel, 463 

 various metals, 463 

 Steinmetz constant, 460 

 susceptibility, 462 



vs. temperature, 461 

 terrestrial (see under Geomagnetism) , 468 

 Magnetization intensity, 12, 18 



energy loss, various materials, 460 

 specific: atomic, 451 



molecular. 451 

 Steinmetz constant, 460 

 Magnetizing force, 12, 451 

 Magnetomotive force, 12, 18 

 Magneton, Bohr, 49, 54, 654 

 Magneto-optic rotation, 503 

 definitions. 503 

 Faraday effect, 503 



Verdet constant (see also Verdet con- 

 stant), 504 



Magneto-strictive effects: Joule, 451 

 Villari, 451 

 Weidemann, 451 

 Magnets, permanent, 454 

 Magnitudes (stellar) : absolute, 730 



bolometric, 759 

 Mass: electron, 50 

 H\ 50 



H 1 to electron, 50 

 neutron, 654, 664 

 rest, 654 

 standard, 14, 16 

 units of, 14 

 Mass-energy ratio, 654 

 Mass-velocity ratio, 654 

 Mathematical tables: constants, 25 

 derivatives, 23 

 exponentials, 43 

 factorials, 26 



log of, 26 

 formulas: moment of inertia, 27 

 radius of gyration, 27 

 weights, 27 

 integrals, 23 

 least squares, 42-45 

 logarithms. 28-31 

 moment of inertia, 27 

 radius of gyration, 27 

 series, 24 



trigonometric functions, 31-36 

 weights, 27 

 Maximum velocity, 654 

 Maxwell, 18, 451 

 Mean free path, 641 



Measurements (see also Data) : definitions, 4 

 derived, 2 

 two factors, 1 

 units, 1, 2 

 choice of, 1 

 Mechanical equivalent: definition, 8, 93 

 heat, 8 



light, 93, 94, 96 

 Mechanical properties (see also Physical 

 properties) , 187 

 alloys, miscellaneous, 217 



special purpose, 220 

 aluminum, 192 

 Babbitt metal, 226 

 brass, 195 

 bronze, 195 



building materials (see also under Build- 

 ing materials), 229 

 carboloy, 224 



concrete (see also under Building ma- 

 terials), 229 

 copper (see also Wire). 198 

 alloys. 198 

 wire, 208 



hard-drawn, 208 

 soft, 208 

 definitions, 187 

 elements, 189 



fibers (see also under Fibers), 241 

 artificial, 243 

 miscellaneous, 244 



