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History of science (view source)

Revision as of 20:19, May 15, 2007

628 bytes added , 20:19, May 15, 2007

Galileo discovered the mathematical expression of the law of falling bodies: the distance increases as the square of the time

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Theories based on observation were not always subject to [[experiment]]al test, and some errors lingered on for centuries. The best known was Aristotle's theory of [[falling objects]], which despite its went essentially unchallenged until the [[Renaissance]].

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* Galileo determined that the acceleration of these bodies is constant. He demonstrated that an object released from a height starts with zero velocity and increases its speed with time (before him it was thought that bodies when released acquire instantaneously a velocity which remained constant but was larger the heavier the object was). Experimenting with inclined planes, and measuring a ball's positions after equal time intervals Galileo discovered the mathematical expression of the law of falling bodies: the distance increases as the square of the time. [http://physics.ucr.edu/~wudka/Physics7/Notes_www/node49.html]

==External links==

*[http://www.ucmp.berkeley.edu/history/aristotle.html Aristotle (384-322 B.C.E.)] - University of California Museum of Paleontology

*[http://www-groups.dcs.st-and.ac.uk/~history/PrintHT/Gravitation.html History topic: Theories of gravitation] - School of Mathematics and Statistics, University of St Andrews, Scotland

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