A MORE PERFECT HEAVEN

HOW NICOLAUS COPERNICUS REVOLUTIONIZED THE COSMOS

Sobel (The Planets, 2005, etc.) offers another meaty-while-mellifluous story of science.

The author elegantly fashions the life of Copernicus as a two-act play bracketed by historically documented narratives that cover the periods before and after the arrival of Georg Joachim Rheticus at Copernicus’s Polish doorstep in 1539. Some 30 years earlier, Copernicus had roughed out a heliocentric theory of the universe and quietly distributed it to a number of mathematicians. Word of it reached the ears of Rheticus, a 25-year-old professor of mathematics at the university in Wittenberg. He arrived at Copernicus’s house as an “unexpected guest” and an altogether problematical one: a Lutheran during a time of anti-heretical fervor. Sobel draws Copernicus as a devout Catholic, but not unsympathetic to the Lutherans; he reluctantly agreed to Rheticus staying on when the youth awakened in him the desire to finish his great work and get it published. Sobel presents an illuminating piece of work, bringing to life the old man and the young man’s days spent together and in particular Rheticus’ coming to terms, the bending of his mind, around Copernicus’s theory, which was more radical than he understood. Readers are fit squarely in Rheticus’ shoes via Sobel’s neat act of transport, there to share his bafflement and resistance. The book closes with the tale of the fate of On the Revolutions; just as Copernicus had worried, it dismayed the hidebound and the “babblers, who claim to be judges of astronomy, although completely ignorant of the subject…such men are not above twisting some passage of Scripture to their purpose, to censure me.” A liquid entertainment of choice passages on the thoughts and deeds of Copernicus.

 

Pub Date: Sept. 27, 2011

ISBN: 978-0-8027-1793-1

Page Count: 272

Publisher: Walker

Review Posted Online: May 19, 2011

Kirkus Reviews Issue: June 1, 2011

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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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