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

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