Thursday, November 22, 2012

Time stops after 3 billion years

Group of physicists from the U.S. and Japan claim that according to their calculations, there is a 50% chance that the time to stop in the next 3.7 billion years. Other theorists are extremely skeptical about this. Universe occurs before about 13 billion years after the Big Bang, and since then constantly expanding. Furthermore, data from the observed amount of space suggest that this expansion is accelerating. It follows that the universe expands forever. Busso Rafael (Raphael Bousso) by the Center for Theoretical Physics, University of California at Berkeley and his colleagues rebelled against this idea. In an article published in the electronic library of Cornell University, they argue that an infinitely expanding universe can not exist, since the laws of physics do not work in infinite space. In order for these laws to have any meaning, the universe should be limited and they calculated the most probable date when the end will come in. "Continuous expansion of the Universe has several important implications. Each event in it, which has non-zero probability happens an infinite number of times "- scientists say. But if there is an infinite number of each possible observation, it becomes impossible to determine the probability of any event. In this situation, the laws of physics simply can not be applied.    The only way out of this conundrum, say the authors of this article is to suggest some kind of catastrophe that will end the universe. Then all probabilities again become meaningful and the laws of physics will work. "The time is unlikely to stop in at our age, but there is a 50% probability, the time to stop in the next 3.7 billion years" - the researchers wrote. This means that the end of time will come during the lifetime of the Sun and Earth. Along with this Bussoz said that although it is not known what kind of disaster will lead to the end of time, mankind can not see anything when this happens. In other words, people will fly into this catastrophe at full speed before you have time to see the least part of its impact.

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