A NEW COSMOLOGICAL MODEL: RED-SHIFT AND SCALE FACTORS

A new cosmological model is considered which doesn?t require dark energy. The expansion of the universe is reinterpreted as a ?rescaling? whereby the whole universe can change scale, yet appear static. Rescaling is a symmetry whereby there is a simultaneous change of every length in the universe and all physical constants which contain length dimensions. It is shown that this interpretation of expansion of the universe, can lead to a Hubble law, due to changing of Hubble constant with time. Also an interpretation of expansion of the universe by red-shift of light, due to a changing of Plancks constant with time. This results in a new relationship between scale factor of the universe and red-shift. The misunderstanding of the true relationship is the cause of the apparent dark energy phenomenon.