Then comes the era of sun- worshiping, Copernicus was a heliolater; he said sun is the center not the earth. This thing was said earlier but he presented his case more emphatically and changed the map of astronomy. Then, the era of Isaac Newton dawned. He said mechanism and the force of gravitation are the ways of nature that is working on Newtonian’s Mechanics. Before the century was over the scientists started saying all that Newton had said, is not true and his force of attraction and gravitation became under discussion.

What Democritus, Lucretius and Lucretius had said about 22 centuries ago that the last particle of matter is indivisible; returned, but the time made this theory redundant?

Scientists said the, nuclear system is acceptable but what could be its last stage. In order to know and race began to break into the atom.

In the first half of the 20th century, man fled from all the fields. He gave the verdict that ether does not exit it was just a hypothesis of the past people.

Scientists of this age were despised of soul and spirit it scared them lest it may take the place of ether. Theories that lights emitted from eyes cause sighting were already ignored. Newer theories suggested that lights entering into our eyes causing the images and reflections upon the screen of mind. Thus it continues.