Intensity of gravitational field 106
Intuition 123
Ions 44
Kepler 125
Kinetic energy 45, 101
Lattice 108
Law of inertia 11, 61, 62, 98
Laws of Galilei-Newton 13 of Nature 60, 71, 99
Leverrier 103, 126
Light-signal 33, 115, 118
Light-stimulus 33
Limiting velocity ()#Limiting 36, 37
Lines of force 106
Mach, E.#Mach 72
Magnetic field 63
Manifold|seeContinuum 0
Mass of heavenly bodies 132
Matter 101
Maxwell 41, 44, 48-50, 52 fundamental equations 46, 77
Measurement of length 85
Mercury 103, 126 orbit of 103, 126
Michelson 52-54
Minkowski 55-57, 91, 122
Morley 53, 54
Motion 14, 60 of heavenly bodies 13, 15, 44, 102, 113
Newcomb 126