Einstein's radius of the universe

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Einstein's radius of the universe is radius of curvature of space of Einstein's universe, a model universe that was supposed to represent our universe in idealized form. The radius of curvature of space of this universe (Einstein's radius) is $R_E=c/\sqrt {4\pi G\rho}$ , where $c$ is speed of light, $G$ is Newtonian gravitational constant, and $ρ$ is density of space of this universe. The numerical value of Einstein's radius is of order of $1010$ light years.

Last updated: 07-05-2005 22:13:43

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