TY - BOOK AU - Johnson,George TI - Miss Leavitt's stars: the untold story of the woman who discovered how to measure the universe SN - 0393051285 AV - QB807 .J64 2005 PY - 2005/// CY - New York PB - W.W. Norton KW - Leavitt, Henrietta Swan, KW - Harvard College Observatory KW - History KW - Astrometry KW - Women astronomers KW - United States KW - Biography KW - Astronomical photometry KW - Astronomy KW - 20th century N1 - Includes bibliographical references (p. 149-150) and index; Prologue : the village in the canyon -- Black stars, white nights -- Hunting for variables -- Henrietta's law -- Triangles -- Shapley's ants -- The late, great Milky Way -- In the realm of the nebulae -- The mysterious K -- The cosmic stampede -- Ghost stories -- Epilogue : fire on the mountain N2 - How big is the universe? In the early twentieth century, scientists took sides. One held that the entire universe was contained in the Milky Way galaxy; their champion was the strong-willed astronomer Harlow Shapley. Another camp believed that the universe was so vast that the Milky Way was just one galaxy among billions--the view that would prevail, proven by the equally headstrong Edwin Hubble. Almost forgotten is the Harvard Observatory Computer--a human number cruncher hired to calculate the positions and luminosities of stars in astronomical photographs--who found the key to the mystery. Radcliffe-educated Henrietta Swan Leavitt, fighting ill health and progressive deafness, stumbled upon a new law that allowed astronomers to use variable stars--those whose brightness rhythmically changes--as a cosmic yardstick. This book is both an account of how we measure the universe, and the moving story of a neglected genius.--From publisher description UR - http://www.loc.gov/catdir/toc/ecip057/2005002823.html ER -