Keyword: quantumgravity

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  • Mapping the road to quantum gravity

    04/26/2014 5:36:47 AM PDT · by onedoug · 9 replies
    Science Daily ^ | 23 APR 2014 | Perimeter Institute for Theoretical Physics
    The road uniting quantum field theory and general relativity -- the two great theories of modern physics -- has been impassable for 80 years. Could a tool from condensed matter physics finally help map the way?
  • String Theory, at 20, Explains It All (or Not)

    12/07/2004 10:01:55 AM PST · by snarks_when_bored · 110 replies · 2,849+ views
    The New York Times ^ | December 7, 2004 | Dennis Overbye
    December 7, 2004 String Theory, at 20, Explains It All (or Not) By DENNIS OVERBYE SPEN, Colo. - They all laughed 20 years ago. It was then that a physicist named John Schwarz jumped up on the stage during a cabaret at the physics center here and began babbling about having discovered a theory that could explain everything. By prearrangement men in white suits swooped in and carried away Dr. Schwarz, then a little-known researcher at the California Institute of Technology.Only a few of the laughing audience members knew that Dr. Schwarz was not entirely joking. He and his...
  • Time Trip - questions and answers (How widely accepted is the theory that we can travel in time?)

    12/25/2003 8:12:15 PM PST · by Momaw Nadon · 91 replies · 2,512+ views
    BBC ^ | Friday, December 26, 2003 | BBC
    The Future According to Professor Paul Davies "Scientists have no doubt whatever that it is possible to build a time machine to visit the future". Since the publication of Einstein’s Special Theory of Relativity in 1905, few, if any, scientists would dispute that time travel to the future is perfectly possible. According to this theory, time runs slower for a moving person than for someone who is stationary. This has been proven by experiments using very accurate atomic clocks. In theory, a traveller on a super high-speed rocket ship could fly far out into the Universe and then come back...