INTRODUCTION		1
CHAPTER I. GEOMETRY AND COSMOLOGY
1.	The Origin of the Art of Measuring Space and Time	5
2.	Units of Length and Time	5
3.	Origin and Coordinate System	6
4.	The Axioms of Geometry	8
5.	The Ptolemaic System	9
6.	The Copernican System	10
7.	The Elaboration of the Copernican Doctrine	12
CHAPTER II. THE FUNDAMENTAL LAWS OF CLASSICAL MECHANICS
1.	Equilibrium and the Concept of Force	14
2.	The Study of Motion-Rectilinear Motion	16
3.	Motion in a Plane	23
4.	Circular Motion	25
5.	Motion in Space	28
6.	Dynamics - The Law of Inertia	29
7.	Impulses	30
8.	The Effect of an Impulse	31
9.	Mass and Momentum	32
10.	Force and Acceleration	35
11.	Example - Elastic Vibrations	37
12.	Weight and Mass	41
13.	Analytical Mechanics	45
14.	The Law of Energy	46
15.	Dynamical Units of Force and Mass	51
CHAPTER III. THE NEWTONIAN WORLD SYSTEM
1.	Absolute Space and Absolute Time	54
2.	Newton's Law of Attraction	58
3.	Universal Gravitation	60
4.	Celestial Mechanics	64
5.	The Relativity Principle of Classical Mechanics	67
6.	Limited Absolute Space	69
7.	Galileo Transformations	71
8.	Inertial Forces	76
9.	Centrifugal Forces and Absolute Space	78
CHAPTER IV. THE FUNDAMENTAL LAWS OF OPTICS
1.	The Ether	86
2.	The Corpuscular and the Undulatory Theory	87
3.	The Velocity of Light	91
4.	Elements of the Wave Theory-Interference	96
5.	Polarization and Transversality of Light Waves	104
6.	The Ether as an Elastic Solid	108
7.	The Optics of Moving Bodies	118
8.	The Doppler Effect	121
9.	The Convection of Light by Matter	128
10.	Aberration	140
11.	Retrospect and Further Development	142
CHAPTER V. THE FUNDAMENTAL LAWS OF ELECTRODYNAMICS
1.	Electro- and Magnetostatics	146
2.	Voltaic Electricity and Electrolysis	156
3.	Resistance and Heat of Current	160
4.	Electromagnetism	162
5.	Faraday's Lines of Force	165
6.	The Electrical Displacement Current	174
7.	Magnetic Induction	176
8.	Maxwell's Theory of Action by Contact	179
9.	The Electromagnetic Theory of Light	183
10.	The Electromagnetic Ether	190
11.	Hertz's Theory of Moving Bodies	192
12.	The Electron Theory of Lorentz	199
13.	Electromagnetic Mass	207
14.	Michelson and Morley's Experiment	214
15.	The Contraction Hypothesis	218
CHAPTER VI. EINSTEIN'S SPECIAL PRINCIPLE OF RELATIVITY
1.	The Concept of Simultaneity	225
2.	Einstein's Kinematics and Lorentz's Transformations	232
3.	Geometrical Representation of Einstein's Mechanics	238
4.	Moving Measuring Rods and Clocks	246
5.	Appearance and Reality	251
6.	The Addition of Velocities	262
7.	Einstein's Dynamics	267
8.	The Inertia of Energy	278
9.	Energy and Momentum	289
10.	Optics of Moving Bodies	297
11.	Minkowski's Absolute World	305
CHAPTER VII. EINSTEIN'S GENERAL THEORY OF RELATIVITY
1.	Relativity in the Case of Arbitrary Motions	309
2.	The Principle of Equivalence	312
3.	The Failure of Euclidean Geometry	317
4.	Geometry on Curved Surfaces	321
5.	The Two-dimensional Continuum	327
6.	Mathematics and Reality	330
7.	The Metric of the Space-Time Continuum	335
8.	The Fundamental Laws of the New Mechanics	339
9.	Mechanical Inferences and Confirmations	342
10.	Predictions of the New Mechanics and Their Confirmations	347
11.	Optical Deductions and Confirmations	351
12.	Cosmology	362
13.	The Unified Field Theory	370
14.	Conclusion	372
INDEX		373