Nothing: A Very Short Introduction
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What is 'nothing'? What remains when you take all the matter away? Can empty space - a void - exist? This Very Short Introduction explores the science and the history of the elusive void: from Aristotle who insisted that the vacuum was impossible, via the theories of Newton and Einstein, to our very latest discoveries and why they can tell us extraordinary things about the cosmos. Frank Close tells the story of how scientists have explored the elusive void, and the rich discoveries that they have made there. He takes the reader on a lively and accessible history through ancient ideas and cultural superstitions to the frontiers of current research. He describes how scientists discovered that the vacuum is filled with fields; how Newton, Mach, and Einstein grappled with the nature of space and time; and how the mysterious 'aether' that was long ago supposed to permeate the void may now be making a comeback with the latest research into the 'Higgs field'. We now know that the vacuum is far from being empty - it seethes with virtual particles and antiparticles that erupt spontaneously into being, and it also may contain hidden dimensions that we were previously unaware of. These new discoveries may provide answers to some of cosmology's most fundamental questions: what lies outside the universe, and, if there was once nothing, then how did the universe begin?
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Format:Broché
"Nothing" seems to be the simplest of all notions, apparently requiring no thought whatsoever. It is what remains where everything is taken away. But a closer scrutiny reveals that "nothing" is not trivial as it may first seem. Is it physically possible to achieve such a thing as the absence of all matter? Even if possible, is what remains a truly empty space? And what is space anyway - is it possible to talk about it in the absence of matter? It is these and related questions that this short book tries to answer. It takes the reader on a journey from philosophical and speculative ideas of classic antiquity, to the most advanced frontiers of modern theoretical and experimental Physics. For a book of its size it covers a lot of ground. It explains where the notion that "the nature abhors vacuum" comes from, and how it took almost two thousand years to refute it by actually creating the first known artificial vacuum. The book explains how the ideas about the vacuum have evolved over the centuries, and in particular what an effect the discoveries of quantum mechanics and general relativity have had on it. Today we believe that even the perfect vacuum is strictly speaking not completely empty, and it is a rather complicated and complex entity. The book concludes with some of the current Physics speculations and how they may pertain to our ideas about "nothing."
The book is written in an interesting and easy-flowing style, and it does not overwhelm the reader with technical details and arcane jargon. There are hardly any equations in it, and the ones that are present are straightforward and used in order to illustrate a point that otherwise would be too cumbersome to describe. Overall, this is a very good book with a fresh and engaging perspective.
The book is written in an interesting and easy-flowing style, and it does not overwhelm the reader with technical details and arcane jargon. There are hardly any equations in it, and the ones that are present are straightforward and used in order to illustrate a point that otherwise would be too cumbersome to describe. Overall, this is a very good book with a fresh and engaging perspective.
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