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General Relativity
General Relativity
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Gravity: String Theory
Last Updated on 2009-04-14 at 12:21
There was hardly any time to wrestle with the implications of these ideas before yet another revolution in thinking hit the theoretical fan. In 1982, John Schwartz and Michael... More »
Spacetime: Special Relativity
Last Updated on 2009-03-28 at 22:36
The development of the spacetime idea actually arose from the necessity of creating a self-consistent description of Maxwell's electrodynamics that worked for all observers no... More »
Space: Dimensions
Last Updated on 2009-03-28 at 22:30
We take it pretty much for granted that space has 3 dimensions to it, but the idea that space has a limited number of dimensions may not be an old one at all. In all of Greek... More »
Gravity: Supersymmetry
Last Updated on 2009-03-25 at 20:39
While the quantum gravity program got hoplessly bogged-down in these and otherthorny issues, in 1973, a breakthrough occurred in another area of theoretical physics. Some might... More »
Gravity: Superspace Quantization
Last Updated on 2009-03-25 at 20:38
By the 1960's several new attacks were launched on the theoretical underpinnings of the quantum gravity program by Arnowitt, Deser, Misner and Wheeler. The basic idea was simple:... More »
Gravity: Renormalization
Last Updated on 2009-03-25 at 20:28
By the late 1960's, the Canonical Quantum Gravity or 'Superspace Quantization' approach quickly bogged down in an ever-growing mathematical formalism inwhich the equations... More »
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