His work on light was collected in his highly influential book Opticks, published in 1704.
Newton built the first practical reflecting telescope and developed a sophisticated theory of colour based on the observation that a prism separates white light into the colours of the visible spectrum. Newton's inference that the Earth is an oblate spheroid was later confirmed by the geodetic measurements of Maupertuis, La Condamine, and others, convincing most European scientists of the superiority of Newtonian mechanics over earlier systems. He demonstrated that the motion of objects on Earth and celestial bodies could be accounted for by the same principles. Newton used his mathematical description of gravity to derive Kepler's laws of planetary motion, account for tides, the trajectories of comets, the precession of the equinoxes and other phenomena, eradicating doubt about the Solar System's heliocentricity. In the Principia, Newton formulated the laws of motion and universal gravitation that formed the dominant scientific viewpoint until it was superseded by the theory of relativity.
Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus. His book Philosophiæ Naturalis Principia Mathematica ( Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. He was a key figure in the philosophical revolution known as the Enlightenment. The city of Summerville advised residents who use the city’s water utility services to boil water prior to drinking, cooking or preparing baby food due to flash flooding at the Raccoon Creek Filter plant.Sir Isaac Newton PRS (25 December 1642 – 20 March 1726/27 ) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a " natural philosopher"), widely recognised as one of the greatest mathematicians and physicists of all time and among the most influential scientists. Floyd County - just to the south - was also under a flash flood warning.Īt 3:10 p.m., the service advised locals to avoid non-emergency travel as another round of emergency rainfall entered the area. The service declared a “flash flood emergency” for Summerville, Lyerly and James H. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order,” the service said. “This is an extremely dangerous and life-threatening situation. Up to 12 inches of rain was estimated to have fallen in the area, according to Kemp’s executive order.
Brian Kemp declared a state of emergency Sunday afternoon in Chattooga and Floyd Counties, directing all state resources to help with “preparation, response and recovery activities.” The National Weather Service said rainfall of up to one inch per hour was causing creeks, streams, roadways and urban areas to experience unusually high levels of water.
Local news reports showed roads under water and homeowners struggling to keep water out. (AP) - Thunderstorms and heavy rain pounded parts of northwest Georgia on Sunday, sparking flash flooding in some areas.
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