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Rh Intuition, 148

Ions, 53

Kepler, 152

Kinetic energy, 53, 121

Lattice, 128

Laws of Galilei-Newton, 15

Law of inertia, 12, 71, 72, 170

Laws of Nature, 70, 84, 118

Leverrier, 123, 152

Light-signal, 40, 139, 143

Light-stimulus, 40

Limiting velocity ($$c$$), 43, 44

Lines of force, 126

Lorentz, H. A., 24, 48, 52, 58, 59–63

transformation, 39, 46, 50, 108, 116, 139, 143, 144, 146

(generalised), 144

Mach, E., 86

Magnetic field, 74

Manifold (see Continuum)

Mass of heavenly bodies, 159

Matter, 120

Maxwell, 49, 52, 56-59, 61

fundamental equations, 56, 90

Measurement of length, 101

Measuring-rod, 5, 6, 34, 95, 96, 112, 119, 121, 132, 135, 141

Mercury, 123, 152

orbit of, 123, 152

Michelson, 62–64

Minkowski, 65–68, 108, 147

Morley, 63, 64

Motion, 16, 70

of heavenly bodies, 16, 17, 52, 122, 135

Newcomb, 152

Newton, 12, 86, 122, 126, 150

Newton’s constant of gravitation, 158

law of gravitation, 57, 94, 127, 149

law of motion, 76

Non-Euclidean geometry, 128

Non-Galileian reference-bodies, 117

Non-uniform motion, 72

Optics, 15, 24, 52

Organ-pipe, note of, 17

Parabola, 9, 10

Path-curve, 10

Perihelion of Mercury, 150–152

Physics, 8

of measurement, 7

Place specification, 6

Plane, 1, 128, 129

Poincaré, 128

Point, 1

Point-mass, energy of, 54

Position, 9

Principle of relativity, 15–17, 23, 24, 70

Processes of Nature, 50

Propagation of light, 21, 23, 24, 36, 108, 143

in liquid, 47

in gravitational fields, 88