Creation of Spiral Galaxies II

Some discussions about quasars are presented. A gravito‐radiative term is obtained as a correction term from the variational principle of Einstein General Relativity Theory. A collision between two massive black holes at the center of a quasar generates a gravito‐radiative force. According to our theory, there cannot be any galaxies with an odd number of spiral arms, and that agrees with our observation. The size of the Milky Way galaxy was about 10 times the present size, and the galaxy must be shrinking now.