THE CASE OF THE MISSING NEUTRINOS

AND OTHER CURIOUS PHENOMENA OF THE UNIVERSE

Here is a collection of cosmological exotica, from the shrinking sun to the weighing of empty space, written masterfully by Gribbin (co-author, Fire on Earth, 1996, etc.), a noted English cosmologist and award-winning writer of popular science. Gribbin, is a scientist with a rare talent for translating complicated facts, theories, and questions into the layperson’s language. Here he recounts how astronomers and nonscientists alike were amazed by Jack Eddy’s announcement in 1979 that the sun was shrinking and would disappear within 100,000 years. Everyone had taken it for granted that our sun was an archetypal “normal” star until it was discovered that it was losing weight by burning 4.5 million tons of mass every second (“a mere flea-bite” compared to its total mass). Gribbin thinks the sun is only in a temporary phase of contraction that must soon be reversed. Such pulsations, he posits, must have occurred regularly over the billions of years of its existence. Gribbin also tells a related and equally colorful story: what has become of the sun’s missing neutrinos (the particles have no mass or electrical charge and travel through empty space or solid matter at the speed of light). He recounts the epic story of Ray Davis’s experimental counting of neutrinos deep within the gold mines of South Dakota. Davis detected only one-third of the number predicted, suggesting a series of bizarre speculations about the sun, such as one about its nuclear activities being temporarily “turned off.” Gribbin suggests that we may have to change many of our cherished theories about the universe. This is an example of science writing at its best: informative, witty, fun, and accessible, without sacrificing the complexities inherent in modem cosmology and particle physics.

Pub Date: Dec. 12, 1998

ISBN: 0-88064-199-1

Page Count: 224

Publisher: N/A

Review Posted Online: May 20, 2010

Kirkus Reviews Issue: Oct. 1, 1998

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A tiny book, not much bigger than a pamphlet, with huge potential impact.

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NO ONE IS TOO SMALL TO MAKE A DIFFERENCE

A collection of articulate, forceful speeches made from September 2018 to September 2019 by the Swedish climate activist who was nominated for a Nobel Peace Prize.

Speaking in such venues as the European and British Parliaments, the French National Assembly, the Austrian World Summit, and the U.N. General Assembly, Thunberg has always been refreshingly—and necessarily—blunt in her demands for action from world leaders who refuse to address climate change. With clarity and unbridled passion, she presents her message that climate change is an emergency that must be addressed immediately, and she fills her speeches with punchy sound bites delivered in her characteristic pull-no-punches style: “I don’t want you to be hopeful. I want you to panic. I want you to feel the fear I feel every day. And then I want you to act.” In speech after speech, to persuade her listeners, she cites uncomfortable, even alarming statistics about global temperature rise and carbon dioxide emissions. Although this inevitably makes the text rather repetitive, the repetition itself has an impact, driving home her point so that no one can fail to understand its importance. Thunberg varies her style for different audiences. Sometimes it is the rousing “our house is on fire” approach; other times she speaks more quietly about herself and her hopes and her dreams. When addressing the U.S. Congress, she knowingly calls to mind the words and deeds of Martin Luther King Jr. and John F. Kennedy. The last speech in the book ends on a note that is both challenging and upbeat: “We are the change and change is coming.” The edition published in Britain earlier this year contained 11 speeches; this updated edition has 16, all worth reading.

A tiny book, not much bigger than a pamphlet, with huge potential impact.

Pub Date: Nov. 26, 2019

ISBN: 978-0-14-313356-8

Page Count: 112

Publisher: Penguin

Review Posted Online: Nov. 3, 2019

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As much a work of philosophy as of physics and full of insights for readers willing to work hard.

THE ORDER OF TIME

Undeterred by a subject difficult to pin down, Italian theoretical physicist Rovelli (Reality Is Not What It Seems: The Journey to Quantum Gravity, 2017, etc.) explains his thoughts on time.

Other scientists have written primers on the concept of time for a general audience, but Rovelli, who also wrote the bestseller Seven Brief Lessons on Physics, adds his personal musings, which are astute and rewarding but do not make for an easy read. “We conventionally think of time,” he writes, “as something simple and fundamental that flows uniformly, independently from everything else, uniformly from the past to the future, measured by clocks and watches. In the course of time, the events of the universe succeed each other in an orderly way: pasts, presents, futures. The past is fixed, the future open….And yet all of this has turned out to be false.” Rovelli returns again and again to the ideas of three legendary men. Aristotle wrote that things change continually. What we call “time” is the measurement of that change. If nothing changed, time would not exist. Newton disagreed. While admitting the existence of a time that measures events, he insisted that there is an absolute “true time” that passes relentlessly. If the universe froze, time would roll on. To laymen, this may seem like common sense, but most philosophers are not convinced. Einstein asserted that both are right. Aristotle correctly explained that time flows in relation to something else. Educated laymen know that clocks register different times when they move or experience gravity. Newton’s absolute exists, but as a special case in Einstein’s curved space-time. According to Rovelli, our notion of time dissolves as our knowledge grows; complex features swell and then retreat and perhaps vanish entirely. Furthermore, equations describing many fundamental physical phenomena don’t require time.

As much a work of philosophy as of physics and full of insights for readers willing to work hard.

Pub Date: May 18, 2018

ISBN: 978-0-7352-1610-5

Page Count: 256

Publisher: Riverhead

Review Posted Online: April 3, 2018

Kirkus Reviews Issue: April 15, 2018

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