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Nature’s Third Cycle – A Story of Sunspots - Oxford Scholarship Online
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Nature’s Third Cycle: A Story of Sunspots

Arnab Rai Choudhuri


This book argues that the 11-year sunspot cycle has become the third most important natural cycle affecting our lives, after the cycle of day and night and the cycle of seasons. The aim of this book is to describe the phenomenology of this cycle and to discuss the scientific principles required to understand it. Major solar explosions called solar flares—which disturb the earth’s magnetic field and ionosphere—occur more frequently during the peak of the sunspot cycle. Although this cycle was discovered less than two centuries ago—by Schwabe in 1843—it is becoming increasingly important for us ... More

Keywords: Sun, sunspots, sunspot cycle, solar flares, solar activity, magnetic field, plasma physics, dynamo theory

Bibliographic Information

Print publication date: 2015 Print ISBN-13: 9780199674756
Published to Oxford Scholarship Online: April 2015 DOI:10.1093/acprof:oso/9780199674756.001.0001


Affiliations are at time of print publication.

Arnab Rai Choudhuri, author
Professor of Physics, Department of Physics, Indian Institute of Science, Bangalore, India