Einstein abandoned the static universe theory when we confirmed expansion. Time is absolutely not constant but it is unidirectional according to Einstein himself after the Hubble Telescope verified that everything everywhere is expanding. The radius of the universe depends on time.
Einstein abandoned the static universe theory when we confirmed expansion. Time is absolutely not constant but it is unidirectional according to Einstein himself after the Hubble Telescope verified that everything everywhere is expanding. The radius of the universe depends on time.