<b>Unification of electromagnetic force and gravitation</b>

<b>Since the discovery of an electron, people have thought that it possesses one electric charge and that the nucleus possesses a contrary charge. Based on the new discovery that moving photons do create force, I have calculated the number Z of elements and discovered that the number Z of elements can be calculated by the frequency of X-rays, and the atomic weight can also be calculated by the frequency of X-rays. This method of calculation shows the essence of the electric charge and the essence of the gravitational mass; here, for the first time, this study provides the unification of gravitation and electromagnetic force. Further </b><b>based on the new discovery that moving photons create force and a formula for describing this new discovery, applying this discovery from the micro world to the macro world shows that from the atomic world to the </b><b>galaxy</b><b> world, nature has been working to obey this law, and its actions can all be described by this formula. Coulomb’s law and the Newtonian University’s law of gravitation are only approximate calculation</b>