Our own movements provide a sense of what there is in the world. Human life proceeds in the midst of all the natural changes that we experience in the universe. Galileo’s experiments prove that natural motions are really energy changes with the earth. For Newton to propound universal gravitation progress beyond human actions to interactions of sun and planets is needed.
Human affairs through the Industrial Revolution elucidate scientific developments culminating in the construction of 100” Mount Wilson and 200” mirror Mount Palomar telescopes. Discovery of Andromeda and other galaxies moving beyond the Milky Way affirm the reality of a wider physical dynamic that involves adjustment of scientific comprehension of motion. That the rotation rate of stars in galaxies requires additional matter mass and modified Newtonian description confirms that it is really energy changes we are dealing with for a full rendering of astronomical events. Human affairs on earth provide the full real life experience for comprehension of dynamics of galaxies superclusters as functions of large scale energies interchanges.
