While the steady state model enjoyed some popularity in the mid-20th century, it is now rejected by the vast majority of cosmologists, astrophysicists and astronomers, as the observational evidence points to a hot Big Bang cosmology with a finite age of the universe, which the Steady State model does not predict.
12.
Furthermore, just as simple 1D steady state heat flow is assumed in the calculation of the heat transmission coefficients ( U-values ) that are used in the design, approval and building energy performance rating of buildings so the simple 1D steady state model of dynamic insulation is adequate for designing and assessing the performance of a dynamically insulated building or element of the building.
13.
The evidence that resulted in the Big Bang's victory over the steady state model included the discovery of the cosmic microwave background radiation in the 1960s, the distribution of " young galaxies " and quasars throughout the Universe in the 1980s, a more consistent age estimate of the universe and most recently the observations of the COBE satellite in the 1990s which corresponds to currently observed distributions of galaxies.
