INDEX
- Absolute, approached through the relative, 82
- Absolute acceleration, 68, 154, 194
- Absolute past and future, 50
- Absolute rotation, 152, 164, 194
- Absolute simultaneity, 12, 51
- Absolute time, in cylindrical world, 163
- Acceleration, a simpler quality than velocity, 195; modifies FitzGerald contraction, 75
- Action, 147; atomicity of, 199; on Weyl's theory, 177
- Action, Principle of Least, 149, 178
- Addition of velocities, 59
- Aether, a plenum with geodesic structure, 164; identified with the "world," 187; non-material nature of, 39; stagnant, 210
- Artificial fields of force, 64
- Atom, vibrating on sun, 128
- Atomicity, law of, 199; of Action, 177
- Aviator, space and time-reckoning of, 23
- Bending of light, effect on star's position, 112; observational results, 118; theory of, 107, 207
- Beta particles, 59, 145
- Brain, constitution of, 191
- Brazil, eclipse expedition to, 117
- Causality, law of, 156
- Causation and free will, 51
- Centrifugal Force, compared with gravitation, 41, 65; debt at infinity, 157; not caused by stars, 153; vibrating atom in field of, 129
- Chess, analogy of, 184
- Christoffel, 89
- Circle in non-Euclidean space, 104
- Clifford, 77, 152, 192
- Cliquishness, 188
- Clock, affected by velocity, 58; on sun, 74, 128; perfect, 13; recording proper- time, 71
- Clock-scale, 58
- Clock-scale geometry, not fundamental, 73, 131, 191
- Coincidences, 87
- Comets, motion through coronal medium, 121; radiation-pressure in, 110
- Conservation of electric charge, 173; of energy and momentum, 139; of mass, 141, 196
- Content contrasted with structural form, 192, 200
- Continuous matter, 91, 140
- Contraction, FitzGerald, 19, 54
- Convergence of physical approximations, 154
- Coordinates, 77
- Coordinate velocity, 107
- Corona, refraction by, 121
- Cottingham, 114
- Crommelin, 114, 122
- Curvature, degrees of, 91; identified with action, 148; merely illustrative, 84; of a globe of water, 148; of space and time, 158; on Weyl's theory, 176; perception of, 190
- Cylinder and plane, indistinguishable in two dimensions, 81
- Cylindrical world, Einstein's, 161, 177
- Davidson, 114
- Deflection of light, effect on star's position, 112; observational results, 118; theory of, 107,207
- Density, effect of motion on, 62
- Displacement of spectral lines, 129; in nebulae, 161 ; in stars, 135
- Displacement of star-images, 112, 115
- Double stars and Einstein effect, 133
- Duration, not inherent in external world, 34
