Science+Facts+6-10

 =**Physical Science** =

=Nicolaus Copernicus =

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Nicolaus Copernicus is a Polish astronomer and was born at Torun and went to Cracow University. In 1543, he started to formulate a revolutionary system called the Copernician System. His system was based on the heliocentric theory.(Bergin and Speake, Copernician System )=====

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In 1543, Nicolaus published his book //De Revolutionibus,// which proposed a Sun-centered universe. This became known as the revolutionary heliocentric theory of the universe, that the Earth is not revolving but in it's own axis. Which led to the spark of the beginnings of the Scientific Revolution.(Schlager)=====

=Galileo Galilei =

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Galileo begins his experiments that led to his laws on falling bodies. This law showed that the rate of fall of an object is independent from it's own weight. He concludes that all objects will fall at the same time.(Schlager)=====

= Isaac Newton =

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In 1687, Isaac Newton published his book //Philosophiae Naturalis Principa Mathematica.// This book of Isaac Newton's is considered the greatest scientific work written. In this book he outlines his laws. Also, Newton's law of universal gravitation laid the template for articulation of physical laws through physics.===== (Schlager)