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On the surface of the Sun, spots appear and fade in a predictable cycle, like a great clock in the sky. In medieval Russia, China, and Korea, monks and court astronomers recorded the appearance of these dark shapes, interpreting them as omens of things to come. In Western Europe, by contrast, where a cosmology originating with Aristotle prevailed, the Sun was regarded as part of the unchanging celestial realm, and it took observations through telescopes by Galileo and others to establish the reality of solar imperfections. In the nineteenth century, amateur astronomers discovered that sunspots ebb and flow about every eleven years--spurring speculation about their influence on the weather and even the stock market.
Exploring these and many other crucial developments, Pierre Sokolsky provides a history of knowledge of the Sun through the lens of sunspots and the solar cycle. He ranges widely across cultures and throughout history, from the earliest recorded observations of sunspots in Chinese annals to satellites orbiting the Sun today, and from worship of the Sun as a deity in ancient times to present-day scientific understandings of stars and their magnetic fields. Considering how various thinkers sought to solve the puzzle of sunspots, Sokolsky sheds new light on key discoveries and the people who made them, as well as their historical and cultural contexts. Fast-paced, comprehensive, and learned,
The Clock in the Sun shows readers our closest star from many new angles.
About the author
Pierre Sokolsky is an experimental particle astrophysicist. He is distinguished professor of physics and astronomy emeritus at the University of Utah, where he was also dean of the College of Science. Sokolsky is a fellow of the American Physical Society, a Guggenheim Foundation Fellow, and a recipient of the American Physical Society's Panofsky Prize in High Energy Physics. He is a recipient of the International Union of Pure and Applied Physics Yodh Prize, which celebrates those who have made important contributions to the field of cosmic rays and astroparticle physics throughout their career.
