Changes

:Such redshift simulates the expansion of space, with Hubble constant of this apparent expansion at <math>r=0</math> equal

:Such redshift simulates the expansion of space, with Hubble constant of this apparent expansion at <math>r=0</math> equal

:<math>H_o=c/R_E</math>

::<math>H_o=c/R_E</math>

:It is observed as about <math>H_o=</math>70km/s/Mpc which implies that the radius of curvature of space of Einstein's model universe, <math>R_E</math> is about 13Gly (13 billion light years). Very tough to measure but luckily very easy to calculate. And BTW, this value of <math>H_o</math> implies the density of our universe about <math>6\times 10^{-27}kg/m^3</math>, which is within about one standard deviation from what is observed.

:It is observed as about <math>H_o=</math>70km/s/Mpc which implies that the radius of curvature of space of Einstein's model universe, <math>R_E</math> is about 13Gly (13 billion light years). Very tough to measure but luckily very easy to calculate. And BTW, this value of <math>H_o</math> implies the density of our universe about <math>6\times 10^{-27}kg/m^3</math>, which is within about one standard deviation from what is observed.