Wednesday, October 10, 2012

Faster than Light Relativity?

Einstein's Theory of Special Relativity was published in 1905 and explains how motion and speed is always relative to the observer's frame of reference.

The theory connects measurements of the same physical incident viewed from these different points in a way that depends on the relative velocity of the two observers. "Since the introduction of special relativity there has been much speculation as to whether or not it might be possible to travel faster than the speed of light, noting that there is no substantial evidence to suggest that this is presently feasible with any existing transportation mechanisms," said Professor Hill. "About this time last year, experiments at CERN, the European centre for particle physics in Switzerland, suggested that perhaps neutrinos could be accelerated just a very small amount faster than the speed of light; at this point we started to think about how to deal with the issues from both a mathematical and physical perspective.

The theory purports that all motion is relative and that there is no state of rest. This is where things get complicated. The new extension on the equation makes up for this and accommodates infinite relative velocity at the speed of light - something the old theory failed to do, said LiveScience. "Since the introduction of special relativity there has been much speculation as to whether or not it might be possible to travel faster than the speed of light, noting that there is no substantial evidence to suggest that this is presently feasible with any existing transportation mechanisms," said study co-author Jim Hill in a statement. Hill said that some of their inspiration came from a finding last year at CERN that neutrinos may be able to travel faster than the speed of light, which was reported by GlopalPost. This time last year, experiments at CERN, the European centre for particle physics in Switzerland, suggested that perhaps neutrinos could be accelerated just a very small amount faster than the speed of light; at this point we started to think about how to deal with the issues from both a mathematical and physical perspective."

After many years, the twin from Earth would have aged more. Special relativity, however, limits the relative velocity of two objects (A and B) when their speeds approaches that of light. Apart from Newtonian limit, velocities are not additive quantities, so the difference velocity between A and B is not equal to their relative velocity and particularly has a smaller absolute value. Professor Jim Hill and Dr Barry Cox in the University's School of Mathematical Sciences have developed new formulas that allow for travel beyond this limit. Of course, these formulas aren't practical in the world, but provide an interesting view to a world where faster than light speeds are possible. "Since the introduction of special relativity there has been much speculation as to whether or not it might be possible to travel faster than the speed of light, noting that there is no substantial evidence to suggest that this is presently feasible with any existing transportation mechanisms," said Professor Hill. "Our approach is a natural and logical extension of the Einstein Theory of Special Relativity, and produces anticipated formulae without the need for imaginary numbers or complicated physics," says Professor Hill. Their formulas extend special relativity to a situation where the relative velocity can be infinite, and can be used to describe motion at speeds faster than light. In this new, imaginary world, the laws of physics are sensibly different, like one might expect. For instance, if a spaceship were to travel at ever increasing, faster than light velocity, it would lose more and more mass, until at infinite velocity, its mass becomes zero. "We are mathematicians, not physicists, so we've approached this problem from a theoretical mathematical perspective," said Dr Cox. While scientists were debating the results of the OPERA experiment, Mr. Hill and his team of applied mathematicians were already working on formulating an extension of the theory of special relativity, suitable to relative velocities in excess of the speed of light. They saw their math as a "natural and logical" extension of Einstein's theory of special relativity. Their formulas, a press statement notes, extend Einstein's theory to a situation where the relative velocity can be infinite, and can describe motion at speeds faster than light.

http://newsfeedresearcher.com/data/articles_t41_5/speed-light-relativity.html

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