alexander a friedmann the man who made the universe expand

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Alexander A Friedmann

Author : Eduard A. Tropp
ISBN : 0521025885
Genre : Biography & Autobiography
File Size : 54. 25 MB
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Our universe can be described mathematically by a simple model developed in 1922 at Petrograd (St Petersburg) by Alexander Friedmann (1888–1925), who predicted that the whole universe would expand and evolve with time before there was any observational evidence. He was an outstanding Soviet physicist, and this vivid 1993 biography is set in a wide historical background. The book is a window on the school and university years, military service, teaching and research during a seminal period of Soviet history. The authors include unique archival material, such as Friedmann's letters from the Front, as well as contemporary records and reminiscences of colleagues. There is a detailed treatment of his work in Theoretical Cosmology (1922–1924), set in the context of the organization of Soviet science at the time.

The World As Space And Time

Author : Alexander A. Friedmann
ISBN : 9781927763193
Genre : Space and time
File Size : 64. 36 MB
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This is the first English translation of the book The World as Space and Time (Мир как пространство и время) written by the great Russian physicist Alexander Friedmann who first showed in 1922 that Einstein's equations have solutions that describe a non-stationary Universe (later the experimental evidence did confirm that the Universe is expanding). The original Russian publication was in 1923. The book is one of the first introductions to the spacetime physics of the theory of relativity for a wider audience. Friedmann had succeeded in both making the book accessible to non-experts and providing rigorous explanations.

Papers On Curved Spaces And Cosmology

Author : Alexander A. Friedmann
ISBN : 9781927763223
Genre : Cosmology
File Size : 72. 73 MB
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If the talented Russian physicist Alexander Alexandrovich Friedmann had to be introduced with a single sentence, the most appropriate sentence would be the title of his biography translated from the Russian: Alexander A. Friedmann: The Man who Made the Universe Expand. Indeed, he was the first to realize in 1922 that Einstein's equations have solutions which describe not only a stationary Universe as Einstein initially believed, but also a non-stationary world. Friedmann won the debate with Einstein over the admissibility of such solutions, but his life was too short and he could not see the triumph of his views when the experimental evidence fully supported his predictions and demonstrated that the Universe was expanding. This book contains three papers by Friedmann - "On the Curvature of Space", "On the Possibility of a World with a Constant Negative Curvature of Space", and "On the Geometry of Curved Spaces". The third paper is a 28-page manuscript (dated 15 April 1922) which has not been published even in Russian. Unlike the existing two English translations of Friedmann's 1922 and 1924 papers (done from the German publications), now these papers are translated directly from the original Russian texts.

Reader S Guide To The History Of Science

Author : Arne Hessenbruch
ISBN : 188496429X
Genre : Science
File Size : 79. 22 MB
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"A readers' advisory to the best books on the history of science. Written by 200 international scholars, the 600 comparative essays begin with a bibliography of important works, followed by reviews of those sources in the body of the entry. Important concepts and processes, phenomena, and scientists as well as scientific developments in different countries are covered."--"Outstanding Reference Sources," American Libraries, May 2002.

Prematurity In Scientific Discovery

Author : Ernest B. Hook
ISBN : 0520231066
Genre : Philosophy
File Size : 35. 97 MB
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"In preparing this remarkable book, Ernest Hook persuaded an eminent group of scientists, historians, sociologists and philosophers to focus on the problem: why are some discoveries rejected at a particular time but later seen to be valid? The interaction of these experts did not produce agreement on 'prematurity' in science but something more valuable: a collection of fascinating papers, many of them based on new research and analysis, which sometimes forced the author to revise a previously-held opinion. The book should be enthusiastically welcomed by all readers who are interested in how science works."—Stephen G. Brush, co-author of Physics, The Human Adventure: From copernicus to Einstein and Beyond "Prematurity and Scientific Discovery contains interesting and insightful papers by numerous well-known scientists and scholars. It will be of wide interest, not only to science studies scholars but also to working scientists and to science-literate general readers."—Thomas Nickles, editor of Scientific Discovery, Logic, and Rationality

Interacting Dark Energy And The Expansion Of The Universe

Author : Alexander S. Silbergleit
ISBN : 9783319575384
Genre : Science
File Size : 28. 71 MB
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This book presents a high-level study of cosmology with interacting dark energy and no additional fields. It is known that dark energy is not necessarily uniform when other sources of gravity are present: interaction with matter leads to its variation in space and time. The present text studies the cosmological implications of this circumstance by analyzing cosmological models in which the dark energy density interacts with matter and thus changes with the time. The book also includes a translation of a seminal article about the remarkable life and work of E.B. Gliner, the first person to suggest the concept of dark energy in 1965.

Journal For The History Of Astronomy

Author :
ISBN : CHI:41295370
Genre : Astronomy
File Size : 53. 71 MB
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Author : Sir Norman Lockyer
ISBN : UOM:39015012053925
Genre : Electronic journals
File Size : 52. 50 MB
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Slavic Review

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ISBN : STANFORD:36105020577552
Genre : Europe
File Size : 80. 52 MB
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Histoire Russe

Author :
ISBN : UOM:39015061298892
Genre : Soviet Union
File Size : 48. 57 MB
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