The Large Hadron Collider - destined to deliver fabulous science data, but it remains uncertain if these will include an evidence basis for quantum gravity theories. Credit: CERN.
General relativity, Einstein’s theory of gravity, gives us a useful basis for mathematically modeling the large scale universe – while quantum theory gives us a useful basis for modeling sub-atomic particle physics and the likely small-scale, high-energy-density physics of the early universe – nanoseconds after the Big Bang – which general relativity just models as a singularity and has nothing else to say on the matter.
Quantum gravity theories may have more to say. By extending general relativity into a quantized structure for space-time, maybe we can bridge the gap between small and large scale physics. For example, there’s doubly special relativity. (...)
Read the rest of Astronomy Without A Telescope – Doubly Special Relativity (672 words)
© Steve Nerlich for Universe Today, 2011. | Permalink | 5 comments | Add to del.icio.us
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Full story at http://www.universetoday.com/84226/astronomy-without-a-telescope-doubly-special-relativity/
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