UPI en Espanol
Jump to
Latest Headlines Quotes Wiki
share with facebook
share with twitter
share with google
1 of 3
Protesters for Troy Davis execution in Jackson, Ga
The Rev. Al Sharpton, right, and Isaac Newton Farris Jr., center, meet with protesters next to the Georgia Diagnostic and Classification Prison in Jackson, Ga., on Wednesday, Sept. 21, 2011 after the state ordered the execution of death row inmate Troy Davis to be carried out by lethal injection at 7:00 p.m., for the murder of off-duty Savannah policeman Mark MacPhail, in 1989. UPI/David Tulis
| License Photo
Latest Headlines
First Prev Page 1 of 4 Last Next

Sir Isaac Newton PRS (4 January 1643 – 31 March 1727 ) was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian.

His monograph Philosophiæ Naturalis Principia Mathematica, published in 1687, lays the foundations for most of classical mechanics. In this work, Newton described universal gravitation and the three laws of motion, which dominated the scientific view of the physical universe for the next three centuries. Newton showed that the motions of objects on Earth and of celestial bodies are governed by the same set of natural laws, by demonstrating the consistency between Kepler's laws of planetary motion and his theory of gravitation, thus removing the last doubts about heliocentrism and advancing the Scientific Revolution. The Principia is generally considered to be one of the most important scientific books ever written.

Widely regarded as one of the most influential people in human history, Newton built the first practical reflecting telescope and developed a theory of colour based on the observation that a prism decomposes white light into the many colours that form the visible spectrum. He also formulated an empirical law of cooling and studied the speed of sound.

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Isaac Newton."