Srinivas, *like Marxism , another theory that changed our perception about the world was Einstein's theory of relativity .
did you write the above sentence? or the sydney team.. *On Thu, Apr 2, 2009 at 6:57 PM, sreenivas v.p <[email protected]>wrote: > * It outhrown the newtonian conception of the world and lead > to revolutionary discoveries in the study of the universe . But was > Einstein wrong ? * > *See the below report . * > > SYDNEY -- A team of Australian scientists has proposed that the speed of > light may not be a constant, a revolutionary idea that could unseat one of > the most cherished laws of modern physics -- Einstein's theory of > relativity. > The team, led by theoretical physicist Paul Davies of Sydney's Macquarie > University, say it is possible that the speed of light has slowed over > billions of years. > If so, physicists will have to rethink many of their basic ideas about the > laws of the universe. > "That means giving up the theory of relativity and E-mc squared and all > that sort of stuff," Davies told Reuters. > "But of course it doesn't mean we just throw the books in the bin, because > it's in the nature of scientific revolution that the old theories become > incorporated in the new ones." > Davies, and astrophysicists Tamara Davis and Charles Lineweaver from the > University of New South Wales published the proposal in the August 8 edition > of scientific journal *Nature.* (it also appeared in latest "Scientific > american " magazine ). > The suggestion that the speed of light can change is based on data > collected by UNSW astronomer John Webb, who posed a conundrum when he found > that light from a distant quasar, a star-like object, had absorbed the wrong > type of photons from interstellar clouds on its 12 billion year journey to > earth. > Davies said fundamentally Webb's observations meant that the structure of > atoms emitting quasar light was slightly but ever so significantly different > to the structure of atoms in humans. > The discrepancy could only be explained if either the electron charge, or > the speed of light, had changed. > "But two of the cherished laws of the universe are the law that electron > charge shall not change and that the speed of light shall not change, so > whichever way you look at it we're in trouble," Davies said. > To establish which of the two constants might not be that constant after > all, Davies' team resorted to the study of black holes, mysterious > astronomical bodies that suck in stars and other galactic features. > They also applied another dogma of physics, the second law of > thermodynamics, which Davies summarizes as "you can't get something for > nothing." > After considering that a change in the electron charge over time would > violate the sacrosanct second law of thermodynamics, they concluded that the > only option was to challenge the constancy of the speed of light. > More study of quasar light is needed in order to validate Webb's > observations, and to back up the proposal that light speed may vary, a > theory Davies stresses represents only the first chink in the armor of the > theory of relativity. > > ------------------------------ > Add more friends to your messenger and enjoy! Invite them now. > > > <http://in.rd.yahoo.com/tagline_messenger_6/*http://messenger.yahoo.com/invite/> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Green Youth Movement" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/greenyouth?hl=en-GB -~----------~----~----~----~------~----~------~--~---
