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Latest Fine-structure constant Stories

2011-07-20 13:13:59

The electromagnetic force has gotten a little stronger, gravity a little weaker, and the size of the smallest "quantum" of energy is now known a little better. The National Institute of Standards and Technology (NIST) has posted the latest internationally recommended values of the fundamental constants of nature. The constants, which range from relatively famous (the speed of light) to the fairly obscure (Wien frequency displacement law constant) are adjusted every four years in response to...

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2008-04-03 13:45:00

Researchers at The University of Manchester have used graphene to measure an important and mysterious fundamental constant - and glimpse the foundations of the universe.The researchers from The School of Physics and Astronomy, led by Professor Andre Geim, have found that the world's thinnest material absorbs a well-defined fraction of visible light, which allows the direct determination of the fine structure constant.Working with Portuguese theorists from The University of Minho in Portugal,...

2007-04-02 15:35:21

CHAMPAIGN, Ill. - Using relic radiation from the birth of the universe, astrophysicists at the University of Illinois have proposed a new way of measuring the fine-structure constant in the past, and comparing it with today. By focusing on the absorption of the cosmic microwave background by atoms of neutral hydrogen, the researchers say, they could measure the fine-structure constant during the "dark ages," the time after the Big Bang before the first stars formed, when the universe...

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2005-04-11 09:00:00

Scientists discover one of the constants of the universe might not be constant Physical constants are one of the cornerstones of physics -- sacred numbers which we know to be fixed -- but what if some of these constants are changing? Speaking at the Institute of Physics conference Physics 2005, Dr Michael Murphy of Cambridge University will discuss the "fine structure constant" -- one of the critical numbers in the universe which seems to be precisely tuned for life to exist...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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