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Sacred constant might be changing Scientists discover one of the constants of the universe might not be constantPhysical 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 - and suggest that it might not be constant after all.
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