INDEX 



(References are to pages) 



Abampere, 10, 20 



Abbreviations: common units of measure- 

 ment, 56 

 constellations, 743 

 Abcoulomb, 10, 20 

 Aberration constant, 729 

 Abfarad, 20 

 Abhenry, 20 



Absolute units (see under name of unit), 20 

 Absorption (see also Transmission) : 

 for air (atmosphere), 538, 546 

 components, 538 

 moist, 546 

 for crystals, 517, 545 

 for filters, 535-537 

 for gases, long wavelengths, 552 

 for glass, 512 



red pyranometer, 537 

 various, 512 

 for mass: 7-rays, 687 



X-rays, 694 

 for materials for blackening receivers, 548 

 for radiant energy, 517, 535-546 

 for screens, color, 535 

 for various materials, 535 

 for water, 536 

 of gases by liquids, 360 

 of vapors by liquids, 360 

 of various radiations: alpha rays, 672, 684 

 beta rays, 672, 690 

 cathode rays, 672, 690 

 gamma rays, 672, 687 

 radiant energy, 549 

 X-rays, 693, 694, 701 

 critical, 701 

 Abundance (see Elements, chemical) : ele- 

 ments, 625-629 

 isotopes, 655 

 Abvolt, 12, 20 

 Acceleration: angular, 4 



gravity (see Gravitation), 714 

 linear, 6 

 Acoustics (see also Sound), 309 

 architectural, 315 

 attenuation coefficient, 315 

 definition of terms, 315 

 hearing, 314 



differential sensitivity, 314 

 distribution of hearing losses, 315 

 sensitivity of ear, 314 

 reverberation time, 315 

 calculations, 315 

 optimum, 316 

 room type, 317 

 sound type, 317 

 Actinium 228, 



Beta-ray spectrum, 685 



Activity (power), 4 

 Adsorption, heats of, 632, 633 



charcoal, 632, 633 

 Aeronautics, 337 

 air flow, 337, 349 

 compressible, 348 

 force, parameters, 337, 343 

 illustrations, 349 

 isentropic, 348 



formulas, 348 

 normal-shock, 348 



formulas, 348 

 oblique-shock, 348 

 parameters (force) and Mach numbers, 



350, 352 

 speed vs. pressure, 338 

 supersonic, 348 

 types, 339, 349 

 vs. Mach number, 349, 352 

 vs. Reynolds number, 349 

 bodies moving through a liquid, 337 

 forces on, 337 



angle of attack, 339 

 aspect ratio, 339 

 depends upon, 337 

 for air: attitude to wind, 337 

 center of pressure, 339 

 drag coefficient, 339, 340, 342 

 lift coefficient, 339 

 Mach number, 337, 340 



and flow parameters, 342, 350 

 pressure, dynamic, 338 



vs. air speeds, 358 

 Reynolds number, 337 



critical, 341 

 shape of body, 337 

 speed, 338 



surface, roughness, 337 

 turbulence of air, 337 

 sample bodies: 

 airfoils, 353 



air flow around, 352 



angle of attack, 352 



Mach number, 352 



Reynolds number, 352 



surface roughness, 352, 353 



flow parameters, 353 



vs. Mach number, 353 

 force coefficients, 353 

 illustrations, 352 

 cylinders, nonrotating, 340 

 drag coefficient, 340. 341 

 aspect ratio, 340 

 Mach number. 340-342 

 Reynolds number, 340, 341 

 inclination of axis to wind direction, 

 341 



787 



