The energy content of the universe

摘要

Based on my previous work [D. Laskaroudis, Phys. Essays 22, 467 (2009)] and given: the age of the universe t; the value of Hubble's constant H, and the temperature of the cosmic radiation Tz, the following are calculated for the universe: (1) The density ρ_m of the invariant mass; (2) the density ρ_(en) of the mass that corresponds to the energy of the universe according to E = mc2; (3) the ratio ρ_(en)/ρ_m; (4) the ratio R(to)/R(t_(min)) and R(t_(max)/R(t_o);(5) the maximum temperature Tzk of the cosmic radiation at the moment of the big bang; and (6) the period of a expansion-contraction cycle of the universe. We also calculated and produced a diagram that shows the changes and transformations of the different forms of energy of the universe during its expansion.