Page:Light waves and their uses.djvu/183

 INDEX.


 * , 149.
 * : value of increasing, 23; limit without lenses, 25; limit with lenses, 27; increase due to lenses, 30; increase due to interferometer, 36; of standards of length with grating, 85; of length of seconds pendulum, 86; of earth's circumference, 87; of wave length with the interferometer, 98.
 * : interference produced by, 15.
 * : use as test of resolution, 30.
 * , 6.
 * : of periodic curves, 68; of the nature of a source of light, 76.
 * : harmonic, 68.
 * : velocity of light, 48; interferometer, 51.
 * : between tuning-forks, 12.
 * : on soap film, 53; thickness of, 54.
 * , 129.
 * : aberration, 149.
 * : Jupiter's satellites, 142.
 * : analysis of radiations of, 81; red radiation as standard of length, 91; number of waves in meter, 98; action of magnetism on radiations of, 116.
 * : resistance by ether to motion of, 45.
 * , 44.
 * : of sound waves, 19; in telescope and microscope, 29; by rectangular opening, 32.
 * : due to circular opening, 29, 130; due to rectangular opening, 133; due to two slits, 134.
 * : use of in astronomical work, 134.
 * : resistance by ether to motion of, 45, 148; circumference of as standard of length, 87.
 * , 122.
 * : of microscope and telescope, 25.
 * , 113.
 * , 160.
 * : Jupiter's satellites, 142.
 * : properties of, 45, 146; vortex-theory of, 161.
 * : measurement of coefficient of, 55.
 * : action of magnetism on light, 107.
 * : action of magnetism on light, 107.
 * : action of magnetism on light, 112.
 * : velocity of light, 48; in moving media, 152.
 * : velocity of light, 48.
 * : lines in solar spectrum, 60.
 * : measurement of index of refraction, 51; moving media, 152.
 * : due to two openings, 33; breadth of, 34; use of in spectrum analysis, 64.
 * : liquefaction of, 24.
 * : standards of length, 84, 103.
 * : diffraction, 23, 84, 119; efficiency of, 121.
 * : measurement with interferometer, 56.
 * : use in measuring angles, 25.
 * , 6; analyzer, 68.
 * : oscillator, 160.
 * : Jupiter's satellites, 142.
 * : analysis of radiations of, 78.
 * : formation of, 26.
 * : definition of, 8; of sound waves, 9; of mercury ripples, 11; of light in soap film, 12; of two trains of waves, 64.
 * : definition of, 33, 36; description of, 40; application of to measure index of refraction, 51; to measure thickness of soap film, 53; to measure coefficient of expansion, 55; to measure gravitation constant, 56; to test screws, 57; to measure light waves, 58; to analyze spectral lines, 60, 73, 78; to determine standards of length, 89; to the Zeeman effect, 108, 114; to astronomical measurements, 127; to aberration, 157.
 * , 93.
 * : spectrum of, 62.
 * : thickness of liquid films, 54.
 * , 128; size of satellites, 141.
 * : dynamic model of wave motion, 5, 16.