Realtivity the Special and General Theory

accelerated according æther body of reference Cartesian co-ordinates centre chest classical mechanics co-ordinate system consideration corresponding definition disc distance domain earth electrodynamics ellipse embankment energy equations Euclidean continuum Euclidean geometry experience expression finite fixed stars fundamental Galilei transformation Galileian reference-body Galileian system Gaussian co-ordinates gravitational field gravitational mass H. A. Lorentz hold hypothesis imagine inertial mass laws of nature length light in vacuo little rods Lorentz transformation magnitudes manner marble slab material points matter means measured measuring-rods and clocks ment mollusk observer obtain orbit physical physicists plane position postulate of relativity principle of relativity propagation of light propositions radius railway carriage ray of light regard rela RELATIVITY OF SIMULTANEITY result rigid body rotating satisfied Section simultaneous space co-ordinates space-time continuum special theory spectral lines square straight line surface system of co-ordinates theoretical theory of relativity tion transmission of light universe validity velocity of light x-axis