izes of cars accelerate (16), and with how objects, on a train, appear stationary to a person riding the train but appear to be moving to someone not on the train (17).
The theory of relativity, which most people are familiar with, is the place, in the development of theoretical physics, where Hawking leads the reader through an examination of the difficulties people have accepting the fact that time and space are interrelated quantities and into the rest of the recent developments this century. His discussion of acceptance of the theory itself, but not the implications of the theory, that time is relative to where a person is located in relation to the event, by many people is contradictory.
Hawking introduces the idea of time not being a constant. Time and space, with the acceptance of the theory of relativity, become dynamic quantities (33). Einstein's general theory of relativity theorized that gravity is not a force like the other forces but is a consequence arisin
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