Cosmos

Cosmos

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For millennia humans have studied the skies to help them grow crops, navigate the seas, and earn favor from their gods. We still look to the stars today for answers to fundamental questions: How did the universe begin? Will it end, and if so, how? What is our place within it? John North has been examining such questions for decades. In Cosmos, he offers a sweeping historical survey of the two sciences that help define our place in the universe: astronomy and cosmology. Organizing his history chronologically, North begins by examining Paleolithic cave drawings that clearly chart the phases of the moon. He then investigates scientific practices in the early civilizations of Egypt, Greece, China, and the Americas (among others), whose inhabitants developed sophisticated methods to record the movements of the planets and stars. Trade routes and religious movements, North notes, brought these ancient styles of scientific thinking to the attention of later astronomers, whose own theoriesa€”such as Copernicusa€™ planetary theorya€”led to the Scientific Revolution. The work of master astronomers, including Ptolemy, Galileo, Kepler, and Newton, is described in detail, as are modern-day developments in astrophysics, such as the advent of radio astronomy, the brilliant innovations of Einstein, and the many recent discoveries brought about with the help of the Hubble telescope. This new edition brings Northa€™s seminal book right up to the present day, as North takes a closer look at last yeara€™s reclassification of Pluto as a a€œdwarfa€ planet and gives a thorough overview of current research. With more than two hundred illustrations and a comprehensive bibliography, Cosmos is the definitive history of astronomy and cosmology. It is sure to find an eager audience among historians of science and astronomers alike.EVOLVING STARS AND THE H-R DIAGRAM The work of Weizsacker and Bethe on CNO nuclear reactions, and that of Gamow, Hoyle, and others on nucleosynthesis a€” to be considered in the next chapter a€” had an obvious bearing on theanbsp;...


Title:Cosmos
Author: John North
Publisher:University of Chicago Press - 2008-07-15
ISBN-13:

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