TY - BOOK AU - Nussbaumer,Harry AU - Bieri,Lydia TI - Discovering the expanding universe SN - 9780521514842 (hbk.) AV - QB981 .N865 2009 U1 - 523.109 22 PY - 2009/// CY - Cambridge, New York PB - Cambridge University Press KW - Cosmology KW - History KW - Expanding universe N1 - Includes bibliographical references (p. 210-219) and index; Introduction -- Cosmological concepts at the end of the Middle Ages -- Nebulae as a new astronomical phenomenon -- On the construction of the heavens -- Island universes turn into astronomical facts: a universe of galaxies -- The early cosmology of Einstein and de Sitter -- The dynamical universe of Friedmann -- Redshifts: how to reconcile Slipher and de Sitter? -- Lemaitre discovers the expanding universe -- Hubble's contribution of 1929 -- The breakthrough for the expanding universe -- Hubble's anger about de Sitter -- Robertson and Tolman join the game -- The Einstein-de Sitter universe -- Are the sun and earth older than the universe? -- In search of alternative tracks -- The seed for the Big Bang -- Summary and postscript ER -