Quotes About Relativity

In fact, if general relativity were not taken into account in GPS satellite navigation systems, errors in global positions would accumulate at a rate of about ten kilometers each day!

time and space are intertwined. It is something like adding a fourth direction of future/past to the usual left/right, forward/backward, and up/down. Physicists call this marriage of space and time "space-time," and because space-time includes a fourth direction, they call it the fourth dimension.

The nonexistence of absolute rest therefore meant that one could not give an event an absolute position in space, as Aristotle had believed.

This is known as the twins paradox, but it is a paradox only if one has the idea of absolute time at the back of one's mind. In the theory of relativity there is no unique absolute time, but instead each individual has his own personal measure of time that depends on where he is and how he is moving.

time is not completely separate from and independent of space, but is combined with it to form an object called space-time.

The lack of an absolute standard of rest meant that one could not determine whether two events that took place at different times occurred in the same position in space. For example, suppose our Ping-Pong ball on the train bounces straight up and down, hitting the table twice on the same spot one second apart. To someone on the track, the two bounces would seem to take place about thirteen meters apart, because the tram would have traveled that far down the track between the bounces.

DüÅŸük h?z? ve zay?f kuvveti ilgilendiren durumlarda zaman? ve uzay? ayr? ayr? ele alabiliriz. Oysa, genelde zaman ve uzay birbirine geçmiÅŸtir ve bunlar?n geniÅŸlemesi veya s?k??mas? belli oranda birbirine kar??may? içerir.

Today scientists describe the universe in terms of two basic partial theories—the general theory of relativity and quantum mechanics

In general relativity, bodies always follow straight lines in four-dimensional space-time, but they nevertheless appear to us to move along curved paths in our three-dimensional space. (This is rather like watching an airplane flying over hilly ground. Although it follows a straight line in three-dimensional space, its shadow follows a curved path on the two-dimensional ground.)

any normal object is forever confined by relativity to move at speeds slower than the speed of light. Only light, or other waves that have no intrinsic mass, can move at the speed of light.

Na teoria da relatividade, não existe tempo absoluto único; em vez disso, cada indivíduo tem sua própria medida de tempo, que depende de onde ele se encontra e de como está se movendo.

For every event in space-time we may construct a light cone (the set of all possible paths of light in space-time emitted at that event), and since the speed of light is the same at every event and in every direction, all the light cones will be identical and will all point in the same direction.

In order to understand the origin of the universe, one therefore has to incorporate the Uncertainty Principle into Einstein's general theory of relativity. This has been the great challenge in theoretical physics for at least the last thirty years. We haven't solved it yet, but we have made a lot of progress.

and energy, it would have taken an infinite amount of energy to get it there. For this reason, any normal object is forever confined by relativity to move at speeds slower than the speed of light.

Namun teori relativitas memaksa kita mengubah secara mendasar gagasan kita mengenai ruang dan waktu. Kita harus menerima bahwa waktu tidak sepenuhnya terpisah dari ruang, tapi malah berpadu dengan ruang untuk membentuk objek bernama ruang-waktu (space-time).

Dalam teori relativitas tidak ada waktu mutlak yang unik; tiap individu punya pengukuran waktu sendiri yang bergantung kepada tempat dan cara kerjanya.

Teori relativitas umum Einstein menyiratkan bahwa alam semesta harus punya permulaan dan, mungkin akhir.

In the theory of relativity, if one can travel faster than light, one can also travel back in time, and this would lead to problems with people going back and changing the past. One would also expect to have already seen large numbers of tourists from the future, curious to look at our quaint, old-fashioned ways.

Morality is nothing in the abstract Nature of Things, but is entirely relative to the sentiment or mental taste of each particular being; in the same manner as the distinctions of sweet and bitter, hot and cold, arise from the particular feeling of each sense or organ. Moral perceptions therefore, ought not to be classed with the operations of the understanding, but with the tastes or sentiments.

Vivere è una continua metamorfosi. Ogni cosa è cambiamento; ogni cosa è relativa.

I remember once I asked Wayne for the time," Miller told Mercer. "He started talking to me about the cosmos and how time is relative." Miller and [Wayne] Shorter were waiting somewhere -- an airport, a train station, a hotel. The band's keyboardist, Joe Zawinul, who took charge of such matters as what the road crew was supposed to do and when, set Miller straight. "You don't ask Wayne shit like that," he snapped. "It's 7:06 p.m." [p.1]

For a complex natural shape, dimension is relative. It varies with the observer. The same object can have more than one dimension, depending on how you measure it and what you want to do with it. And dimension need not be a whole number; it can be fractional. Now an ancient concept, dimension, becomes thoroughly modern.

We're going to be seeing things from regions in the universe where Einstein is the whole story. Newton you can forget about.

Freedom is relative.