HUBBLE, Edwin (1889-1953). A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae . Offprint from: Proceedings of the National Academy of Sciences , Vol. 15, No. 3. [Washington, D.C.:] Carnegie Institution, 1929. 8 o. Original printed wrappers; cloth folding case. FIRST EDITION, offprint issue, of Hubble's first paper on the discovery of what is now known as Hubble's Law: the proportionality of distance and radial velocity of galaxies, indicating an expanding universe. "Though only six pages in length, Hubble's first paper on the velocity-distance relation represented a giant step in modern cosmology... In place of a static picture of the cosmos, it seemed to many that the universe must be regarded as expanding, the rate of the mutual recession of its parts increasing with their relative distance" (Christianson, Edwin Hubble: Mariner of the Nebulae , pp.188-92). Hubble's discovery "made as great a change in man's conception of the universe as the Copernican revolution 400 years before" (DSB). [ With: ] HUBBLE. The Realm of the Nebulae . New Yaven: Yale University Press, 1936. 8 o. Plates. Original cloth. FIRST EDITION. (2)
HUBBLE, Edwin (1889-1953). A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae . Offprint from: Proceedings of the National Academy of Sciences , Vol. 15, No. 3. [Washington, D.C.:] Carnegie Institution, 1929. 8 o. Original printed wrappers; cloth folding case. FIRST EDITION, offprint issue, of Hubble's first paper on the discovery of what is now known as Hubble's Law: the proportionality of distance and radial velocity of galaxies, indicating an expanding universe. "Though only six pages in length, Hubble's first paper on the velocity-distance relation represented a giant step in modern cosmology... In place of a static picture of the cosmos, it seemed to many that the universe must be regarded as expanding, the rate of the mutual recession of its parts increasing with their relative distance" (Christianson, Edwin Hubble: Mariner of the Nebulae , pp.188-92). Hubble's discovery "made as great a change in man's conception of the universe as the Copernican revolution 400 years before" (DSB). [ With: ] HUBBLE. The Realm of the Nebulae . New Yaven: Yale University Press, 1936. 8 o. Plates. Original cloth. FIRST EDITION. (2)
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