THE EXPLODING SUNS

THE SECRETS OF THE SUPERNOVAS

An honest-to-goodness new Asimov book: not a swatch of columns, an array of editings, or a one-volume explanation of everything. It's about novas and supernovas, the glamorous starbursts that have inspired not a few popular books over the decade. As usual, Asimov brings to his coverage chronological detail, a bare minimum of personalities, and a zeal to explain complexities to lay audiences. So we learn that novas are those wild explosions that result from the exchange of matter between ultraclose stars: one, a white dwarf normally on the road to oblivion; the other, a main sequence star moving up to red giant status but throwing off matter to enrich its neighbor in an accretion ring. Supernovas, on the other hand, fall into two types—the more interesting of which are the type IIs: massive stars that pass through white dwarfery on their way to becoming neutron stars (pulsars) and possibly even black holes. In the process, the supernovas spew out outer layers so heated and charged with energy as to produce the nuclei of massive elements, to seed the cosmic dust. Like others, Asimov says we must thank our lucky supernovas for endowing space with the particles that allow a second generation star, like our sun, to form with all the debris necessary to supply a planetary system with the wherewithal of life. Following his good exposition of the novae, indeed, Asimov takes up cosmic, earthly, and biological origins, evoking the useful fallout from supernovae in these processes. There's discussion of new millisecond pulsars not found elsewhere, and of the role of supernovas in triggering star formation, and providing strong sources of cosmic rays. True to Asimov form, there is also conjecture of probabilities should a supernova burst nearby. A skillful job.

Pub Date: April 22, 1985

ISBN: 0452276608

Page Count: -

Publisher: Dutton

Review Posted Online: Sept. 16, 2011

Kirkus Reviews Issue: March 15, 1985

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Ackerman writes with a light but assured touch, her prose rich in fact but economical in delivering it. Fans of birds in all...

THE GENIUS OF BIRDS

Science writer Ackerman (Ah-Choo!: The Uncommon Life of Your Common Cold, 2010, etc.) looks at the new science surrounding avian intelligence.

The takeaway: calling someone a birdbrain is a compliment. And in any event, as Ackerman observes early on, “intelligence is a slippery concept, even in our own species, tricky to define and tricky to measure.” Is a bird that uses a rock to break open a clamshell the mental equivalent of a tool-using primate? Perhaps that’s the wrong question, for birds are so unlike humans that “it’s difficult for us to fully appreciate their mental capabilities,” given that they’re really just small, feathered dinosaurs who inhabit a wholly different world from our once-arboreal and now terrestrial one. Crows and other corvids have gotten all the good publicity related to bird intelligence in recent years, but Ackerman, who does allow that some birds are brighter than others, points favorably to the much-despised pigeon as an animal that “can remember hundreds of different objects for long periods of time, discriminate between different painting styles, and figure out where it’s going, even when displaced from familiar territory by hundreds of miles.” Not bad for a critter best known for bespattering statues in public parks. Ackerman travels far afield to places such as Barbados and New Caledonia to study such matters as memory, communication, and decision-making, the last largely based on visual cues—though, as she notes, birds also draw ably on other senses, including smell, which in turn opens up insight onto “a weird evolutionary paradox that scientists have puzzled over for more than a decade”—a matter of the geometry of, yes, the bird brain.

Ackerman writes with a light but assured touch, her prose rich in fact but economical in delivering it. Fans of birds in all their diversity will want to read this one.

Pub Date: April 12, 2016

ISBN: 978-1-59420-521-7

Page Count: 336

Publisher: Penguin Press

Review Posted Online: Feb. 17, 2016

Kirkus Reviews Issue: March 1, 2016

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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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