PHILOSOPHERS' STONE.PART 69

idea came when he was under the apple tree.He saw apple tree fall from the tree and thus began to ask himself,whether the moon was drawn to the earth with similar force.Perhaps,could be the reason for the moon's continuous orbit of the earth for eternity.To demonstrate few natural laws apply to the universe,he started with laws propounded by contemporaries and for the calculation of planetary orbits,he applied two natural laws that the Italian provided and proposed.First,the law of inertia,in which Cambridge scholar expressed: A body remains in its state of rest or rectilinear motion until it is compelled to change that state by a force impressed on it"then again"when two forces work on a body simultaneously the body will move on an elliptical path."the two laws were to portray how planets go round the sun-heliocentric world machine and the second law was demonstrated by Galileo on an inclined plane.He explain that all planets move and travel in elliptical orbits around the sun being outcome of two inequal