Einstein's radius of universe
From Conservapedia
Einstein's radius of universe, usually denoted in cosmology by RE, is the radius of curvature of space of Einstein's universe.
The exact length of Einstein's radius of universe is
, where where c is speed of light in vavcuum, G is Newtonian gravitational constant, and ρ is density of space.
Assuming that we live in stationary (neither expanding nor contracting) Einstein's universe in which the Hubble constant is ca. Ho = 70km / s / Mpc as established by observations, the Einstein's radius of universe is ca. 13 bilion light years. The exact number is then RE = c / Ho.