Astronomy Space Science

Alexander A Friedmann: The Man who Made the Universe Expand by Eduard A. Tropp, Viktor Ya. Frenkel, Artur D. Chernin,

By Eduard A. Tropp, Viktor Ya. Frenkel, Artur D. Chernin, Alexander Dron, Michael Burov

Our universe should be defined mathematically by means of an easy version built in 1922 at Petrograd (St. Petersburg) by way of Alexander Friedmann (1888-1925). with out the good thing about observational proof, Friedmann envisioned that the entire universe could extend and evolve with time. This spectacular prediction used to be proven seven years later by way of Edwin Hubble. Its originator, regrettably did not reside to appreciate this triumph. This shiny biography of an exceptional scientist units his existence and paintings opposed to a large backdrop of the heritage of cosmological reports and its significant gamers, reminiscent of Einstein and others. The ebook is a window on Friedmann's university and college years, army carrier, and instructing and examine in the course of a seminal interval of Soviet heritage. The authors comprise precise archival fabric, equivalent to Friedmann's letters from the Russian entrance, in addition to modern files and recollections of peers. there's a designated remedy of his paintings in theoretical cosmology (1922-1924), set within the context of the association of Soviet technology on the time.

Show description

Read or Download Alexander A Friedmann: The Man who Made the Universe Expand PDF

Similar astronomy & space science books

Stars and Relativity

Those authors ranked one of the maximum astrophysicists of the 20 th century, and their paintings is impressive for its deep actual insights and readability of presentation. This book explores basic relativity, houses of subject lower than astrophysical stipulations, stars, and stellar systems. It constitutes a precious source for latest physicists, astronomers, and graduate scholars.

The Interstellar Medium

Describing interstellar subject in our galaxy in all of its a number of types, this publication additionally considers the actual and chemical techniques which are happening inside this subject. the 1st seven chapters current many of the parts making up the interstellar subject and element the ways in which we can examine them.

Radar and Laser Cross Section Engineering

Prediction, aid, and size of electromagnetic scattering from complicated 3-dimensional objectives continues to be the first emphasis of this article. The 2d variation encompasses a extra broad advent that covers the real facets of stealth know-how and the original tradeoffs excited by stealth layout.

Fundamentals of Finite Element Analysis

1st variation, revealed in black and white pages through McGraw Hill India. content material indentical to the hardcover model.

Additional resources for Alexander A Friedmann: The Man who Made the Universe Expand

Example text

A. Steklov, another strong influence on Friedmann was Pavel Sigizmundovich Ehrenfest, whose name is very much part of the development of theoretical physics in Russia in the pre-revolutionary and early post-revolutionary years. At the end of 1907 or the very beginning 1908, the many societies active at the University and other higher and secondary educational establishments in St. Petersburg were supplemented by a "kruschok" whose work was supervised by P. S. Ehrenfest. We deliberately wrote the Russian word "kruzhok" (a hobby group, a society) in German - the way Ehrenfest wrote it, for Russian was not his native language.

Ivanov (compiled jointly with Tamarkin). It cannot be that he did not take part in publishing Steklov's courses, particularly his "Partial Differential Equations," reprinted by the PC many times. As to Ehrenfest, he may have been involved in editing some courses, and there must have been some misunderstanding over his pay for the work, which was taken by Friedmann so close to heart. Dear Pavel Sigizmundovich, Excuse me for troubling you with my small request. You may know what 7 The Minutes of the Sessions of the Council of St.

Ehrenfest highly valued, of course, the ability of his colleagues to capture the main points in the work reviewed and to present them clearly to others. But he encouraged the participants in the seminar not to worry if they failed to understand certain (usually very complicated) questions, but to emphasize these problems and to clarify them through free discussion at the circle's sessions. " The surprised Ehrenfest objected: "What do you mean, unless you have questions? " Unfortunately, we do not know the exact titles of the papers presented by Friedmann in Ehrenfest's circle, but we know that he became very 4 These letters were made available to us through the courtesy of Dr.

Download PDF sample

Rated 4.64 of 5 – based on 17 votes