Freitag, 15. Mai 2009

Time travels in reach - Zeitreisen bald möglich


Quest: Have Light traveled faster in the early days of the Universe - ?


The Story
A brilliant young physicist from Portugal, João Magueijo, asks the heretical question:
What if the speed of light— since Einstein invented the theory, accepted as one of the unchanging foundations of modern physics—were not constant?


His idea is that in the very early days of the universe light traveled faster—an idea that if proven could dethrone Einstein and forever change our understanding of the universe. He is a pioneer of the varying speed of light (VSL) theory of cosmology -an alternative to the more mainstream theory of cosmic inflation- which proposes that the speed of light in the early universe was of 60 orders of magnitude faster than its present value.

Solving the most intractable problems of cosmology in one brilliant leap, Magueijo’s varying-speed-of-light theory (VSL) would have stunning implications for space travel, black holes, time dilation, and string theory—and could help uncover the grand unified theory that
ultimately eluded Einstein.

Joao Magueijo's radical ideas intend to turn that Einsteinian dogma on its head. Marueijo is trying to pick apart one of Einstein’s most impenetrable tenets, the constancy of the speed of light. This idea of a constant speed (about 3×106 meters/second) -is known as the universal
speed limit. Nothing can, has, or ever will travel faster than light.

Magueijo -who received his doctorate from Cambridge, has been a faculty member at
Princeton and Cambridge, and is currently a professor at Imperial College, London- says: not so. His VSL theory presupposes a speed of light that can be energy or time-space
dependent.




In his first book, Faster than the Speed of Light,
Magueijo leads laymen readers into the abstract realm of theoretical physics, based on several well known, as well as obscure, thinkers. The VSL model was first proposed by John Moffat, a Canadian scientist, in 1992. Magueijo carefully builds the foundations for a discussion of Big Bang cosmology, and then segues into the second half of the book, which is devoted to VSL theory.

Like most radical, potentially seminal thinkers, Magueijo shakes the foundations of the physics community, while irritating off many of his fellow scientists. VSL purposes to solve the problems at which all cosmologists are forever scratching: those inscrutable conceptual puzzles that surround the Big Bang. Currently many of these problems have no widely accepted solutions.

shared by The Daily Galaxy - Author: Casey Kazan.
06. Jan. / 15.05.2009



What do YOU think?

Could Einstein be wrong and Magueijo right?
My beloved Astra-Travelers, have your say!


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