Achilles in the Quantum Universe

Publishers Weekly - Cahners\\Publishers_Weekly

With wit and insight, Morris takes the reader on a gentle tour through some of the more profound aspects of infinity, something that by definition defies description. Along the way, he introduces readers to many of the greatest minds in natural philosophy, logic, mathematics and science. His approach to infinity begins with simple mathematical puzzles and rapidly progresses to the most recent theories of the structure of matter. As is often the case in science, the readers are left with more questions than answers, but Morris touches on so much of what constitutes modern physics that they will come away satisfied in any case, and perhaps feeling that our universe tumbled down Alice's rabbit hole eons ago. Morris considers the likes of worm holes, black holes, superstrings, relativity and quantum mechanics, and the bizarre possibilities posed by an infinite number of populated worlds in an infinite number of co-existing universes, all of these conjectured by physicists as they push the limits of our understanding of nature. The earliest proponents of such thoughts were subject to ridicule, but today these concepts are up for fair discussion in mainstream science. Not that scientists don't have a sense of humor: Steven Hawking, Morris reports, has proposed a Chronology Protection Agency that would protect citizens from the bewildering consequences of time travel. Line drawings.

Publishers Weekly - Publisher's Weekly

With wit and insight, Morris takes the reader on a gentle tour through some of the more profound aspects of infinity, something that by definition defies description. Along the way, he introduces readers to many of the greatest minds in natural philosophy, logic, mathematics and science. His approach to infinity begins with simple mathematical puzzles and rapidly progresses to the most recent theories of the structure of matter. As is often the case in science, the readers are left with more questions than answers, but Morris touches on so much of what constitutes modern physics that they will come away satisfied in any case, and perhaps feeling that our universe tumbled down Alice's rabbit hole eons ago. Morris considers the likes of worm holes, black holes, superstrings, relativity and quantum mechanics, and the bizarre possibilities posed by an infinite number of populated worlds in an infinite number of co-existing universes, all of these conjectured by physicists as they push the limits of our understanding of nature. The earliest proponents of such thoughts were subject to ridicule, but today these concepts are up for fair discussion in mainstream science. Not that scientists don't have a sense of humor: Steven Hawking, Morris reports, has proposed a Chronology Protection Agency that would protect citizens from the bewildering consequences of time travel. Line drawings. (May)

Library Journal

The subtitle of this work claims just a bit more than is delivered. After a brief consideration of the ancient Greeks' and modern mathematicians' view of infinity (and infinitesimals) in theoretical physics and 20th-century cosmology, experienced science writer Morris (Cosmic Questions, LJ 11/1/93) offers a smooth-flowing account of some current ideas that will stretch his readers' imagination. Commendably, he is always careful to define all new terms as he introduces them into the discussion. Though at times the historical account is somewhat oversimplified, on balance, this is a good introduction to some difficult theoretical concepts. Recommended for all public and academic libraries.Jack W. Weigel, Univ. of Michigan Lib., Ann Arbor

Kirkus Reviews

The idea of the infinite has baffled thinkers since ancient times; now a top science writer tries to shed light on the concept.

Morris (Cosmic Questions, 1993, etc.) begins by noting the paradoxes that arise when infinite numbers are put through standard arithmetic processes: Half of infinity remains infinite, and infinity minus 30 trillion is still infinite. Precisely because of its tendency to produce paradox, infinity has always had a shady reputation. George Cantor, the first mathematician to seriously study it, went mad. It was the suggestion of infinite worlds, rather than the heliocentric model of the solar system, that got Giordano Bruno burnt at the stake. And Newton went to great pains to find a way to explain his newly invented calculus without resorting to the infinitesimals (infinitely tiny numbers) on which its operations depend; he never quite managed the trick. Morris spends a good deal of time showing how astronomers and cosmologists have dealt with the growth of the observable universe and with the implication that the actual universe might really be infinite. Much of our modern picture of the cosmos arises from the fact that certain equations in Einstein's general relativity theory produce infinite answers—"singularities"—when the right values are plugged in. From these troublesome infinities eventually arose the concepts of the Big Bang and black holes, both of which are now considered all but confirmed by observational evidence. Morris is a clear and lively writer, with a penchant for down-to-earth examples—a useful asset in dealing with a subject so notoriously difficult.

A good survey not only of infinity, but of the scientific revolutions that have grown out of our attempts to grapple with the concept.