SHIRLEY GRIFFITH:In his book, Newton explains the three natural laws of motion. The first law is that an object not moving remains still. And one that is moving continues to move at an unchanging speed, so long as no outside force influences it.
Objects in space continue to move, because nothing exists in space to stop them.
Newton's second law of motion describes force. It says force equals the mass of an object, multiplied by the change in speed it produces in an object.
His third law says that for every action, there is an equal and opposite reaction.
STEVE EMBER: From these three laws, Newton was able to show how the universe worked. He proved it with easily understood mathematics. Scientists everywhere accepted Newton's ideas.
The leading English poet of Newton's time, Alexander Pope, honored the scientist with these words: "Nature and nature's laws lay hid in night. God said, --'Let Newton be!' - and all was light. "
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SHIRLEY GRIFFITH:This Special English program was written by Marilyn Christiano and Frank Beardsley. This is Shirley Griffith.
STEVE EMBER: And this is Steve Ember. Listen again next week for another Explorations program on the Voice of America.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25