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By Forrest M Mims

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So, he thinks they caused the rains to stop. If he is like most in the ancient world, he would look to the skies to see the gods, or to see evidence of their work. As a king, he would call for his court astrologer, his high priest, or for whoever studies the skies in his kingdom and in his culture, and he would ask them to help him understand what was going on, and how to regain his former status. Eventually, after studying the positions of the planets and the stars and thinking deeply about what it all means, they might have an answer for him.

From throwing a ball to a friend, to shooting a rocket into space, to putting a satellite in orbit around the Earth, to understanding how Earth moves around the Sun—the motion of all of these things, and more, could be explained by the new laws of gravity. It is hard to overstate just how important Newton’s discoveries were, so here is one way to look at it. In Newton’s day, scientists believed that some kinds of birds lived underwater during the winter; they had not realized that birds migrate south for the 48 PlAnetAry MOtiOn winter.

For reasons beyond his control, crops die, game animals move elsewhere, and his people begin to starve. In a short time, his kingdom is in ruins, and he asks himself why. He was a compassionate king, his people loved him, and his allies trusted him. He was also a powerful king, and his enemies knew enough to leave him alone. He tried to lead a good life and to take care of his people. In spite of all of this, his kingdom still failed. At times like this, it is only natural for him to think that he is being punished for something that is wrong with him—that the gods looked inside his heart and saw something that they did not like.

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