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Isaac Newton was a scientist who in England in the 17th century. While he was in college, the Great Plague through London. To escape the epidemic, Newton to the village of Woolsworth from 1665 to 1667. During this time, Newton developed many of his theories. According to popular legend, during his stay in the country, Newton was sitting under a tree when an apple and him on the head.

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It was at this point that Newton that the force that made the apple fall to the ground was the same force that the Moon to orbit the Earth. This force is called gravity. Newton’s laws of gravity and motion the only laws explaining gravity.

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Albert Einstein a German scientist who most of his theories in the early 20th century. He about physics during his spare time at work. Einstein came up with a new theory of gravity, which has to do with space and time, and not only with forces. Einstein’s laws eventually Newton’s laws.

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Today, students still Newtonian physics. Newton’s laws very useful for studying the movement of smaller objects. However, Einstein’s laws are needed to understand the movement of bigger things, such as the planets and other huge objects in space. Many phenomena that no explanation now clear because of Einstein’s laws.