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

By Eduard A. Tropp, Viktor Ya. Frenkel, Artur D. Chernin

ISBN-10: 0521384702

ISBN-13: 9780521384704

Our universe may be defined mathematically by means of an easy version built in 1922 at Petrograd (St. Petersburg) by way of Alexander Friedmann (1888-1925). with no the good thing about observational facts, Friedmann expected that the total universe might extend and evolve with time. This brilliant prediction was once proven seven years later through Edwin Hubble. Its originator, regrettably didn't reside to delight in this triumph. This shiny biography of an exceptional scientist units his lifestyles and paintings opposed to a large backdrop of the background of cosmological stories and its significant gamers, akin to Einstein and others. The ebook is a window on Friedmann's university and college years, army carrier, and instructing and learn in the course of a seminal interval of Soviet historical past. The authors contain distinct archival fabric, corresponding to Friedmann's letters from the Russian entrance, in addition to modern documents and memories of comrades. there's a distinct therapy of his paintings in theoretical cosmology (1922-1924), set within the context of the association of Soviet technology on the time.

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Sample text

Thus, for the Ehrenfests' little daughter Tanya (who, in keeping with the family's mathematical traditions, was called Tanya-dashed, to distinguish her from her mother, for whom she was named) the two young men were "the thin one and the fat one," the thin one being Alexander and the fat one Yakov, who even in his youth had a tendency to put on weight. " Friedmann had long thin fingers, which is not surprising for the son of musicians - hence apparently his nickname. Let us now quote some parts of Friedmann's letters to Ehrenfest dating from 1908-10 and briefly comment on them.

Petersburg University for 1906, and several later years. There were a physics circle; an aeronautics circle; circles for political economy, epistemology, and the philosophy of the state; a circle for literature and art; studies of the foundations of Roman law; lovers of nature and hunting - over twenty different circles with a variety of programs. All of them were united into the University Inter-Society Organization, whose chairman was V. L. Komarov, the future president of the USSR Academy of Sciences, at that time an associate professor at the University.

Komarov, the future president of the USSR Academy of Sciences, at that time an associate professor at the University. This organization financed the publication of the "Proceedings" of some of these societies in 1909 and later years. Gavrilov writes that Friedmann was an active participant in 32 University years, 1906-14 these societies: "I remember his talk at one of these circles1 'On the canals of Mars', the news of whose discovery had been announced not long before. Amid the stormy applause of the young audience Alexander Alexandrovich ended his paper with these words: 'The canals appeared almost suddenly; at any rate, they have been built within a very short time.

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


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