Relativity Quotes (97 quotes)
In , Albert Einstein determined that the laws of physics are the same for all non-accelerating observers, and that the speed of light in a vacuum was independent of the motion of all observers. This was the theory of special relativity. It introduced a new framework for all of physics and proposed new concepts of space and time. Einstein then spent 10 years trying to include acceleration in the theory and published his theory of general relativity in In it, he determined that massive objects cause a distortion in space-time, which is felt as gravity.
Since Albert Einstein published his Theory of Relativity the Special Theory in , and the General Theory in , our understanding of time has changed dramatically, and the traditional Newtonian idea of absolute time and space has been superseded by the notion of time as one dimension of space-time in special relativity, and of dynamically curved space-time in general relativity. In relativity, time is certainly an integral part of the very fabric of the universe and cannot exist apart from the universe, but, if the speed of light is invariable and absolute, Einstein realized, both space and time must be flexible and relative to accommodate this. Minkowski introduced the relativity concept of proper time , the actual elapsed time between two events as measured by a clock that passes through both events. An event is both a place and a time, and can be represented by a particular point in space-time, i. Space-time as a whole can therefore be thought of as a collection of an infinite number of events. So, just as we are accustomed to thinking of all parts of space as existing even if we are not there to experience them, all of time past, present and future are also constantly in existence even if we are not able to witness them. This view of time is consistent with the philosophical view of eternalism or the block universe theory of time see the section on Modern Philosophy.
Nov 7, This was the theory of special relativity. It introduced a new framework for all of physics and proposed new concepts of space and time. Einstein.
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When the theory of relativity appeared in the early s, it upended centuries of science and gave physicists a new understanding of space and time. Isaac Newton saw space and time as fixed, but in the new picture provided by special relativity and general relativity they were fluid and malleable. Albert Einstein. He published the first part of his theory — special relativity — in the German physics journal Annalen der Physik in and completed his theory of general relativity only after another decade of difficult work. He presented the latter theory in a series of lectures in Berlin in late and published in the Annalen in