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Cosmos
Books: Text Books: Critical Theory: Item 5
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Cosmosby Carl Sagan
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38 of 44 people found the following review helpful: "All that is", March 19, 2003 Reviewer:A.J. (Maryland) - As one of the great astronomer-writers of the Twentieth Century, Carl Sagan was extraordinarily communicative with the non-scientific public, able and willing to take the time and trouble to break down the mysteries of the universe into comprehensible fragments. The purpose of this book, which can be considered a companion to the acclaimed television series, is to explain what we know about the universe from a cosmological perspective and why we need to know more about it. Physicists often talk of the unity of the branches of physics: the interrelation and application of mechanics, thermodynamics, electricity and magnetism, and optics to the motion of everything from galaxies to subatomic particles. Similarly, Sagan's major theme is the unity of cosmology with the natural and physical sciences that define what we know about the Earth. Does the stifling, carbon dioxide-choked atmosphere of Venus imply anything about the greenhouse effect on Earth? Was a nearby cosmic explosion called a supernova indirectly responsible for the disappearance of the dinosaurs? What would be the biological consequences for the survivors of a global nuclear war? The answers to these questions are vital to the continuation of life as we know it. Sagan also identifies cosmology with its own history. He lavishes reverent detail on the ancient Greek and Alexandrian study of the stars and planetary motions, the pioneering work by the Renaissance scientists Brahe, Kepler, Copernicus, Huygens, and others, and the men who revolutionized science with the formulation of laws of motion, Newton and Einstein. The scope of "Cosmos" is tremendous, from the farthest expanses of the universe containing a hundred billion galaxies in addition to our own Milky Way, at the end of a spiraling arm of which our solar system is located; down to the lone electron circling the nucleus of a hydrogen atom, the most plentiful single entity in the cosmos and the source of everything we know, love, and are. In between there is discussion of the unmanned spacecraft expeditions to investigate "our" planets: Mars with its boulder-strewn, desert-like terrain; the gaseous giant Jupiter; Io, a Jovian moon of incredible redness, spotted with volcanic orifices and resembling an unappealing sauce-covered meatball; Saturn with its ice rings. Would these worlds contain life? Using what we know about the evolution of life on Earth, Sagan hypothesizes how different types of lifeforms might develop on worlds with different environments. Even a casual interest in cosmology requires a fascination with astronomical distances and unthinkably long spans of time in which a human lifetime is but a blink of an eye. However, Sagan seems to write also for those who would rather relate cosmic arcana to familiar terms, and in this sense he is a grand entertainer: A thought experiment that provides a simple but fanciful illustration of the concept of black holes uses the tea party scene in "Alice in Wonderland" as a setting. "Cosmos" neither complicates unnecessarily nor insults your intelligence; very few "popular" science books will capture your imagination so well.
Product Review
Cosmos was the first science TV blockbuster, and Carl Sagan was its (human) star. By the time of Sagan's death in 1996, the series had been seen by half a billion people; Sagan was perhaps the best-known scientist on the planet. Explaining how the series came about, Sagan recalled:
I was positive from my own experience that an enormous global interest exists in the exploration of the planets and in many kindred scientific topics--the origin of life, the Earth, and the Cosmos, the search for extraterrestrial intelligence, our connection with the universe. And I was certain that this interest could be excited through that most powerful communications medium, television.
Sagan's own interest and enthusiasm for the universe were so vivid and infectious, his screen presence so engaging, that viewers and readers couldn't help but be caught up in his vision. From stars in their "billions and billions" to the amino acids in the primordial ocean, Sagan communicated a feeling for science as a process of discovery. Inevitably, some of the science in Cosmos has been outdated in the years since 1980--but Sagan's sense of wonder is ageless. --Mary Ellen Curtin
Book Description
The best-selling science book ever published in the English language, COSMOS is a magnificent overview of the past, present, and future of science. Brilliant and provocative, it traces today's knowledge and scientific methods to their historical roots, blending science and philosophy in a wholly energetic and irresistible way.
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