Gunther Rudiger - Böcker
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3 produkter
3 produkter
Cosmic Dynamo
Proceedings of the 157th Symposium of the International Astronomical Union Held in Potsdam, Germany, September 7-11, 1992
Inbunden, Engelska, 1993
2 625 kr
Skickas inom 10-15 vardagar
The 157th IAU Symposium "The Cosmic Dynamo" was entirely dedicated to dynamo processes, which are fundamental to all cosmic scales. Dynamo theory concerns one of the few truly key questions of recent cosmic physics. A complicated interplay of rotation, magnetism and turbulence determines stellar and galactic activity for almost all the short and medium time scales. Behind these multiform phenomena, the cosmic dynamo works in various guises, all involving inductive and dissipative equilibria in rotating turbulent cosmic plasmas. This book presents an up-to-date survey on investigations and results of dynamo theory and related observations. It is intended for graduate scientists working in the field of cosmical magnetism and its related problems, especially convection, turbulence and, more generally, nonlinear physics.
Astrophysical Observatory Potsdam - Triumph and Tragedies
Reports and Memories 1874 - 1991
Häftad, Engelska, 2026
461 kr
Kommande
This book describes the 110 years of the Astrophysical Observatory in Potsdam (AOP) as the cradle of European astrophysics up to its disappearance in the 1980s. The first part consists of reviews on the work of the leading astronomers before the academic reform, while the following part also contains memories of the author until the end of the Akademie der Wissenschaften and the GDR as well as the formation 1991/92 of the Astrophysical Institute Potsdam (AIP) on the grounds of the Sternwarte Babelsberg in the couse of the German unification.The history of astrophysics on Potsdam's Telegraphenberg includes triumph and tragedy. It began with Hermann Vogel's discovery of the symbiotic stars, Spörer's discovery of the Maunder Minimum of solar activity and Hartmann's clever argumentation on the existence of interstellar gas. Schwarzschild wrote from the war front to Einstein that gravitational waves should exist and Grotrian revealed the secret of the red corona line; later the dynamo theory of the origin of cosmic magnetic fields will migrate worldwide from here.But the Great Refractor turned out to be too large, the hastily erected Einstein Tower also failed to achieve the desired success, Ludendorff drove its multi-talented master mind Freundlich away, and the tower was even planned to be completely removed. Walter Grotrian was not able to start work with his new coronograph, and all the candidates for his succession later declined. The reorganization of the Akademie der Wissenschaften zu Berlin into a socialistic state combine led to isolation and the suppression of the innovation pressure; dubious figures began to torpedo the research through invisible channels.
1 929 kr
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