if u want fun, help me clarifying one of my long standing doubt . i was travelling in a bus from mumbai to pune . inside the bus , it is written in a poster like this " Everything is possible" . but even after reading that poster repeatedly , i could not convince myself that everything is possible . everytime i say "everything is possible ", the impossibility of something haunted me . after reaching pune , i asked my friends . some people including me felt that it is better to say " nothing is impossible " but some were of the opinion that " everything is possible " gives more confidence . we even discussed this with a professor of philosophy in delhi university but nobody could reach an agreement . this may see very silly to u but i am still confused .
--- On Thu, 2/4/09, damodar prasad <[email protected]> wrote: From: damodar prasad <[email protected]> Subject: [GreenYouth] Re: Was Einstein Wrong? To: [email protected] Date: Thursday, 2 April, 2009, 7:45 PM sorry, over-estimate! On Thu, Apr 2, 2009 at 7:45 PM, damodar prasad <[email protected]> wrote: I don't want to underestimate you, sreenivas. Have fun! On Thu, Apr 2, 2009 at 7:37 PM, sreenivas v.p <[email protected]> wrote: Hi Damodar , I wrote that as an introduction , I think three theories changed our perception about ourselves and the universe . 1. Theory of relativity 2. Marxism 3. darwin's theory of evolution . the world before these men of genius has no singificance . --- On Thu, 2/4/09, damodar prasad <[email protected]> wrote: From: damodar prasad <[email protected]> Subject: [GreenYouth] Re: Was Einstein Wrong? To: [email protected] Date: Thursday, 2 April, 2009, 7:16 PM 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. Add more friends to your messenger and enjoy! Invite them now. Bring your gang together. Do your thing. Find your favourite Yahoo! group at http://in.promos.yahoo.com/groups/ --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
