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Newton's Law Of Universal Gravitation - Online Papers

Newton's Law Of Universal Gravitation

Gravity if one of the four fundamental forces in the universe. Though
the fundamental principles of it eluded scientists until Sir Isaac Newton was
able to mathematically describe it in 1687 (Eddington 93). Gravity plays a
serious part in everyday actions as it keeps everything on the ground; without
gravity everything would be immobile unless a force was applied (then it would
move infinitely because there would be no force to stop it).
Perhaps, the best place to start then would be with such a simple item
as an apple (after all it is what "sparked" Newton's creativity). The apple is
one of the two curiosities (the other being the moon) that led Newton to
discover The Law of ...

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basic
explanation of this we will assume a linear plane, one in which all forces act
in only one direction. Therefore when the apple fell it went straight towards
the center of the earth (accelerating at about 9.8 meters per second second).
Newton then figured that the same force that pulled the apple to Earth also
pulls the moon to the earth. But what force keeps the moon from flying into the
earth or the earth flying into the sun (Edwards 493)?
To better understand this, one other aspect must first be understood.
Galileo showed that all objects fall to the earth at the same rate (the classic
cannonball and feather proved this). But why? If a piano and a saxophone were
both dropped from the top of the Empire State Building then they would both slam
into the ground at the same rate. Newton realized then that the moon and the
apple were both being pulled towards Earth at the same rate but yet the moon was
the only one who resisted the force and stayed in its elliptical ...

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Newton's Law Of Universal Gravitation. (2004, March 3). Retrieved April 20, 2024, from http://www.essayworld.com/essays/Newtons-Law-Of-Universal-Gravitation/4008

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PAPER DETAILS

Added: 3/3/2004 08:59:10 PM
Category: Science & Nature
Type: Premium Paper
Words: 1196
Pages: 5

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