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Fundamental Constants of Nature May Not be Constant After All

09/18/2010 02:09AM

Fundamental Constants of Nature May Not be Constant After All

The laws of physics vary in different parts of the universe, according to new evidence uncovered by a team of Australian and British astrophysicists. These conclusions are based on recent measurements taken with the Very Large Telescope in Chile, along with previous measurements from the the Keck Observatory in Hawaii. The researchers found that the "magic number" known as the fine-structure constant, dubbed alpha for short, appears to vary throughout the universe. Alpha indicates the strength of electromagnetism and surprisingly, it seems to vary continuously along an axis through the universe. Looking to the north the researchers detected a smaller alpha in distant galaxies. But when looking south they measured a larger alpha. If the laws of physics turn out to be merely "local laws," then clearly we'll need new physical theories to satisfactorily describe the universe.


Comments:

  • banatop [John cameron]
  • 09/18/2010 10:15AM
"It varies by only a tiny amount – about one part in 100,000 – over most of the observable universe,"<br><i><b>I bet that within a very short time that this "result" turns out to be due to instrument or observational error.</i>[B] 8) <br><br>" but it's possible that much larger variations could occur beyond our observable horizon."<br><i>Cue :"[B]Somewhere over the rainbow</b>..................."</i> <img class='' src='http://new.astromart.com/astromart/javascripts/sceditor/emoticons/grin.png' alt='grin' title='grin'/> <br><br>
Yeah, it's easy to see where this is going. "We need another grant and maybe a NASA mission or two to confirm this. It's for science...".<br><br>The taxpayers should feel privileged to pony up.<br>Bob


  • foreilly [Francis O'Reilly]
  • 09/22/2010 03:37AM
I have always held an inherent distrust in constants used to describe physical properties. In my mind they are akin to a plug number, used to get to an answer when one is unable to understand the fundamental physics governing physical properties. A convenient way of getting around something that we do not yet understand. It comes as no surprise to me that observed constants vary over time and space. Hopefully this discovery will lead to deeper analysis and understanding of the physics behind the constant.<br><br>Francis J. O'Reilly