Alan HirshfeldAlan Hirshfeld, Professor of physics at the University of Massachusetts Dartmouth, is Chair of the American Astronomical Society's Historical Astronomy Division and a longtime Associate of the Harvard College Observatory. He is the author of Parallax The Race to Measure the Cosmos; The Electric Life of Michael Faraday; Eureka Man: The Life and Legacy of Archimedes; Astronomy Activity and Laboratory Manual; and Starlight Detectives: How Astronomers, Inventors, and Eccentrics Discovered the Modern Universe. He is a regular book reviewer for The Wall Street Journal and writes and lectures frequently on science history and discovery. Visit the author's website at www.alanhirshfeld.com. Read More Read Less