A well-researched but sometimes confusing look at gravity and its effects.

GRAVITATIONAL FIELDS & DARK MATTER EXPLAINED

A debut science book offers an overview of several aspects of physics theory.

In this volume, Walsh presents concise explanations of the physics of gravity and gravitational fields as well as the nature of dark matter. The short work is divided into two parts, one for each topic, and relies on both established theory and examples to illustrate the concepts—among others, the author explores Einstein’s “man in a carriage,” a way of depicting how people moving at different speeds observe their surroundings. Walsh also uses Newton’s cradle as a method of explaining how kinetic energy is crucial to motion. The book reviews the effects of gravity as they are experienced on Earth before moving into the wider solar system. Kinetic energy is at the core of the volume’s interpretation of the laws of physics. There are many references to “vis viva,” the historical term for the energy of motion, and the work’s conclusion is that humans do indeed exist within a field of kinetic energy. Walsh clearly has a passion for his subject matter, but there are frequent perplexing and jargon-driven sentences (“This example shows us the energy is a result of a particular action we can specify as motion VS action of stored energy to motion”). Much of the prose would benefit from editing for clarity: “Let us note right now that the subject of energies transforming from one form to another is not needed for this discussion, but we have now noted this”; “Kinetic energy is working on, via in a body (under natural action in the universe, Newton’s first law action), and dark matter is working on a body in its area of existence (perhaps not only this).” In the concluding section, the equations demonstrating the connection between Neptune’s orbital speed and its position in the solar system rely on several apparently arbitrary values, making it unclear to readers exactly how Walsh arrives at an entirely reasonable conclusion. It is evident throughout the book that the author understands the physics involved and has deeply researched the subject, but the substance of his knowledge is not effectively conveyed to readers through the text. The volume may be of more value to those with some expertise in the subject, but novices should look elsewhere for an introduction.

A well-researched but sometimes confusing look at gravity and its effects.

Pub Date: June 27, 2018

ISBN: 978-1-5434-0998-7

Page Count: 60

Publisher: Xlibris

Review Posted Online: Oct. 20, 2018

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Loads of good explaining, with reminders, time and again, of how much remains unknown, neatly putting the death of science...

A SHORT HISTORY OF NEARLY EVERYTHING

Bryson (I'm a Stranger Here Myself, 1999, etc.), a man who knows how to track down an explanation and make it confess, asks the hard questions of science—e.g., how did things get to be the way they are?—and, when possible, provides answers.

As he once went about making English intelligible, Bryson now attempts the same with the great moments of science, both the ideas themselves and their genesis, to resounding success. Piqued by his own ignorance on these matters, he’s egged on even more so by the people who’ve figured out—or think they’ve figured out—such things as what is in the center of the Earth. So he goes exploring, in the library and in company with scientists at work today, to get a grip on a range of topics from subatomic particles to cosmology. The aim is to deliver reports on these subjects in terms anyone can understand, and for the most part, it works. The most difficult is the nonintuitive material—time as part of space, say, or proteins inventing themselves spontaneously, without direction—and the quantum leaps unusual minds have made: as J.B.S. Haldane once put it, “The universe is not only queerer than we suppose; it is queerer than we can suppose.” Mostly, though, Bryson renders clear the evolution of continental drift, atomic structure, singularity, the extinction of the dinosaur, and a mighty host of other subjects in self-contained chapters that can be taken at a bite, rather than read wholesale. He delivers the human-interest angle on the scientists, and he keeps the reader laughing and willing to forge ahead, even over their heads: the human body, for instance, harboring enough energy “to explode with the force of thirty very large hydrogen bombs, assuming you knew how to liberate it and really wished to make a point.”

Loads of good explaining, with reminders, time and again, of how much remains unknown, neatly putting the death of science into perspective.

Pub Date: May 6, 2003

ISBN: 0-7679-0817-1

Page Count: 304

Publisher: Broadway

Review Posted Online: May 20, 2010

Kirkus Reviews Issue: April 1, 2003

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THE RIGHT STUFF

Yes: it's high time for a de-romanticized, de-mythified, close-up retelling of the U.S. Space Program's launching—the inside story of those first seven astronauts.

But no: jazzy, jivey, exclamation-pointed, italicized Tom Wolfe "Mr. Overkill" hasn't really got the fight stuff for the job. Admittedly, he covers all the ground. He begins with the competitive, macho world of test pilots from which the astronauts came (thus being grossly overqualified to just sit in a controlled capsule); he follows the choosing of the Seven, the preparations for space flight, the flights themselves, the feelings of the wives; and he presents the breathless press coverage, the sudden celebrity, the glorification. He even throws in some of the technology. But instead of replacing the heroic standard version with the ring of truth, Wolfe merely offers an alternative myth: a surreal, satiric, often cartoony Wolfe-arama that, especially since there isn't a bit of documentation along the way, has one constantly wondering if anything really happened the way Wolfe tells it. His astronauts (referred to as "the brethren" or "The True Brothers") are obsessed with having the "right stuff" that certain blend of guts and smarts that spells pilot success. The Press is a ravenous fool, always referred to as "the eternal Victorian Gent": when Walter Cronkite's voice breaks while reporting a possible astronaut death, "There was the Press the Genteel Gent, coming up with the appropriate emotion. . . live. . . with no prompting whatsoever!" And, most off-puttingly, Wolfe presumes to enter the minds of one and all: he's with near-drowing Gus Grissom ("Cox. . . That face up there!—it's Cox. . . Cox knew how to get people out of here! . . . Cox! . . ."); he's with Betty Grissom angry about not staying at Holiday Inn ("Now. . . they truly owed her"); and, in a crude hatchet-job, he's with John Glenn furious at Al Shepard's being chosen for the first flight, pontificating to the others about their licentious behavior, or holding onto his self-image during his flight ("Oh, yes! I've been here before! And I am immune! I don't get into corners I can't get out of! . . . The Presbyterian Pilot was not about to foul up. His pipeline to dear Lord could not be clearer"). Certainly there's much here that Wolfe is quite right about, much that people will be interested in hearing: the P-R whitewash of Grissom's foul-up, the Life magazine excesses, the inter-astronaut tensions. And, for those who want to give Wolfe the benefit of the doubt throughout, there are emotional reconstructions that are juicily shrill.

But most readers outside the slick urban Wolfe orbit will find credibility fatally undermined by the self-indulgent digressions, the stylistic excesses, and the broadly satiric, anti-All-American stance; and, though The Right Stuff has enough energy, sass, and dirt to attract an audience, it mostly suggests that until Wolfe can put his subject first and his preening writing-persona second, he probably won't be a convincing chronicler of anything much weightier than radical chic.

Pub Date: Sept. 24, 1979

ISBN: 0312427565

Page Count: 370

Publisher: Farrar, Straus and Giroux

Review Posted Online: Oct. 13, 2011

Kirkus Reviews Issue: Sept. 1, 1979

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