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Space, Time and Gravitation: An Outline of the General Relativity Theory
Arthur S. Eddington
No preview available - 2017
according actually aether appears atom body called cause clock consider coordinates corresponding course curvature curved defined definite depends described determine difficulty dimensions direction distance distinction earth effect Einstein's electrical energy equal equations Euclidean exist experiment experimental explain expression fact field field of force force formula four four-dimensional geometry give given gravitational field important interval kind knowledge law of gravitation length light limited lines mass material mathematical matter meaning measures mechanics mesh-system mind motion moving nature necessary object observer obtained occur ordinary particle particular phenomena physics planet position possible practical present principle properties quantity reason reference regarded region relations relative rest rotation round scale seems shows space space-time speed stars straight suggested supposed surface theory thing tion track true uniform unit values velocity
Page 93 - I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
Page 201 - All through the physical world runs that unknown content, which must surely be the stuff of our consciousness. Here is a hint of aspects deep within the world of physics, and yet unattainable by the methods of physics. And, moreover, we have found that where science has progressed the farthest, the mind has but regained from nature that which the mind has put into nature. We have found a strange foot-print on the shores of the unknown. We have devised profound theories, one after another, to account...
Page 14 - Thus mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.
Page 197 - The relativity theory of physics reduces everything to relations ; that is to say, it is structure, not material, which counts. The structure cannot be built up without material ; but the nature of the material is of no importance.
Page 115 - For in and out, above, about, below, 'Tis nothing but a Magic Shadow-show, Play'd in a Box whose Candle is the Sun, Round which we Phantom Figures come and go.
Page 93 - I don't know what I may seem to the world ; but as to myself, I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of Truth lay all undiscovered before me.
Page 200 - It is even possible that laws which have not their origin in the mind may be irrational, and we can never succeed in formulating them.
Page 45 - For instance, here is a portrait of a man at eight years old, another at fifteen, another at seventeen, another at twenty-three, and so on. All these are evidently sections, as it were, Three-Dimensional representations of his Four-Dimensioned being, which is a fixed and unalterable thing.