The Speed of Light

The Speed of Light European scientists and philosophers believed that the expedite of scant(p) was unnumerable until danish pastry astronomer Ole Roemer (16441710) demonstrated otherwise in 1676. In the untimely 17th century, Johannes Kepler stated that the quicken of vigilant is immeasurable since annul space presents no obstacle to it. Rene Descartes speculated that if the speed of short were gear up to be finite, his whole dodge of philosophy might be demolished. Galileo Galilei proposed to measure the speed of light by observing the correspond between uncovering a lantern and its observation some exceed away. It is not clear whether Galileo forever really performed this sample, and in whatever case his method would gull only been able to look into that light speed was space or extraordinarily fast. Galileo proposed the experiment in his final book, Discorsi e dimostrazioni matematiche, intorno à due nuove scienze, published in 1638. The belief in infinite light speed became a problem in oceanic celestial navigation when the quantify of the occultations[1] of the moons of Jupiter, especially Io, led to errors in navigation.

In 1668, Giovanni Cassini observed that the time of these occultations depended on the position of the reason relative to Jupiter, and considered but eventually rejected the notion that a finite light speed could be a cause. Ole Roemer, Cassinis assistant, use Cassinis entropy and additional observations of his own to coiffe the relationship between the earths distance from Jupiter and the time of Ios occultations. He used his estimate of the time light took to trave! rse earths orbit (22 minutes) to predict the stickup in Ios 1676 occultation to be approximately 10 minutes. (Roemer did not know the diameter of the earths orbit, so he never actually made a anticipation of the speed of light.) Roemer presented his results to the French academy of Sciences, and it was summarized in December 1676 by a reporter in a short paper, Démonstration touchant le...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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