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Alternative cosmological model
On Thu, 30 Oct 2003 21:45:17 GMT, Ulf Torkelsson
wrote: It does make a couple of assumptions on the universe that seem strange. Firstly in general you need gravity to get convection. The hot, light fluid elements rises and expands while the dense, cold elements fall down. Thus you need to assume either a global direction in which gravity is pointing in the universe, or you need to assume that the universe has a center of mass, and thus gravity. Randall-Sundrum cosmologies provide for this in modelling our universe as a brane wrapped around a 5-D bulk. The center of the bulk provides both direction and a source of gravity (in one variant). in conflict with the cosmological principle, which says that there is nothing special with our position in the universe. Essentially the universe looks the same from all points in the universe, which means that the convection currents will not know in which direction they should go. That's another beauty of Randall-Sundrum, in that each place in the universe has a unique orientation, or polarization, respective to the 5-D center. Thus it confers an absolutism; indeed, the absolutism is essential, else the math fails. Eric |
#2
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Alternative cosmological model
On Thu, 30 Oct 2003 21:45:17 GMT, Ulf Torkelsson
wrote: It does make a couple of assumptions on the universe that seem strange. Firstly in general you need gravity to get convection. The hot, light fluid elements rises and expands while the dense, cold elements fall down. Thus you need to assume either a global direction in which gravity is pointing in the universe, or you need to assume that the universe has a center of mass, and thus gravity. Randall-Sundrum cosmologies provide for this in modelling our universe as a brane wrapped around a 5-D bulk. The center of the bulk provides both direction and a source of gravity (in one variant). in conflict with the cosmological principle, which says that there is nothing special with our position in the universe. Essentially the universe looks the same from all points in the universe, which means that the convection currents will not know in which direction they should go. That's another beauty of Randall-Sundrum, in that each place in the universe has a unique orientation, or polarization, respective to the 5-D center. Thus it confers an absolutism; indeed, the absolutism is essential, else the math fails. Eric |
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