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Books : Science & Nature : Popular Science : Physics : Relativity
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Stephen Hawking, one of the most brilliant theoretical physicists in history, wrote the modern classic A Brief History of Time to help non-scientists understand fundamental questions of physics and our existence: where did the universe come from? How and why did it begin? Will it come to an end, and if so, how? Hawking attempts to deal with these questions (and where we might look for answers) using a minimum of technical jargon. Among the topics gracefully covered are gravity, black holes, the Big Bang, the nature of time and physicists' search for a grand unifying theory. This is deep science; the concepts are so vast (or so tiny) that they cause mental vertigo while reading, and one can't help but marvel at Hawking's ability to synthesize this difficult subject for people not used to thinking about things like alternate dimensions. The journey is certainly worth taking for as Hawking says, the reward of understanding the universe may be a glimpse of "the mind of God". --Therese Littleton, Amazon.com
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E = mc2. Just about everyone has at least heard of Albert Einstein's formulation of 1905, which came into the world as something of an afterthought, but far fewer can explain his insightful linkage of energy to mass. David Bodanis offers an easily grasped gloss on the equation: mass, he writes, "is simply the ultimate type of condensed or concentrated energy," whereas energy "is what billows out as an alternate form of mass under the right circumstances."Just what those circumstances are occupies much of Bodanis's book, which pays homage to Einstein and, just as important, to predecessors such as Maxwell, Faraday, and Lavoisier, who are less well known than Einstein today. Balancing writerly energy and scholarly weight, Bodanis offers a primer in modern physics and cosmology, explaining that the universe today is an expression of mass that will, in some vastly distant future, one day slide back to the energy side of the equation, replacing the "dominion of matter" with "a great stillness"--a vision that is at once lovely and profoundly frightening.
Without sliding into easy psychobiography, Bodanis explores other circumstances as well: namely, Einstein's background and character, which combined with a sterling intelligence to afford him an idiosyncratic view of the way things work--and a view that would change the world.--Gregory McNamee
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