Adventures in Order and Chaos: A Scientific Autobiography by George Contopoulos

By George Contopoulos

The box of Order and Chaos had a impressive enlargement within the final 50 years. the most cause used to be using pcs, and the improvement of recent theoretical equipment that we name now 'the concept of chaos'. the writer describes this attention-grabbing interval in a peaceful and infrequently funny autobiographical manner. He relates his interactions with many of us in dynamical astronomy and he charges numerous anecdotes from those interactions. He refers additionally to his stories whilst he served in a variety of foreign positions, comparable to basic secretary of the IAU and chairman of the magazine Astronomy and Astrophysics. in recent times the idea of chaos has been prolonged to new components, like relativity, cosmology and quantum mechanics and it keeps increasing in just about all branches of physics. The booklet describes many very important rules during this box in an easy manner. It refers additionally to difficulties of extra common curiosity, like writing papers and giving lectures and the interplay of authors and referees. eventually it offers a few precious customers for the way forward for dynamical astronomy and comparable fields.

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O. W. Morgan), etc. At the General Assembly there were several young Greek astronomers. During a boat trip along the river Elbe we gathered together on the deck and we 37 organized a choir (I had some assistants that were excellent singers). We sung several Greek and classical songs. While we were singing many participants came to the deck and were listening, seemingly looking at the water. When we finished we were surprised to hear a general clapping of hands. Our songs were melodious, but rather sad, especially the early popular Greek songs, that originated before the Greek revolution.

Then 20 years later I met Russell Cannon from Edinburgh, and we remembered the school in Ankara. I told him my complaints about my manuscript and Russell exclaimed: “But the Proceedings did appear”. Some time later he sent me a photocopy of the book, that had been published by the University of Ankara in 1974, 11 years after the school, without ever notifying me! 10. A, I was engaged to Miss Vaya Mantaka, who had meanwhile returned from the United States to Greece. I met her mother (her father had been executed by the Germans during the Occupation, because he was involved in the underground resistance) and we went together to my family in my native town of Aigion, where my father passed the rings.

39 Further applications of the third integral refer to the types of orbits in a galaxy. In recent years there have been many N-body simulations, representing the collapse of a protogalaxy, that leads to the formation of an elliptical galaxy. The final form of the galaxy is a self-consistent model, that remains approximately stationary. The distribution of velocities then remains constant. The use of the third integral in such a model not only describes the forms of the orbits, but gives also their velocity distribution and explains how the selfconsistency of the model is achieved (Contopoulos, Efthymiopoulos and Voglis 2000; Contopoulos, Voglis and Kalapotharakos 2001).

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