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Движение искусственного спутника относительно центра масс![]() Что и как наблюдать на небе![]() Diffuse Matter in the UniverseThe book is designed as an astrophysics textbook that provides a comprehensive introduction to the physics of Interstellar Matter. It is aimed primarily at those undertaking postgraduate courses, or those doing advanced projects as part of honors undergraduate courses in physics or astrophysics. It should also provide a handy reference to the field for astrophysics faculty and other researchers who are not necessarily experts in this particular subdiscipline. The objective of Astrophysics of the Diffuse Universe is to show how physics can be applied to the understanding and diagnosis of the phase structure, the physical conditions, and the chemical make-up and evolution of the interstellar medium. Consistent with the authors' lecture and course experience, here a systematic approach has been adopted to assist the development of the reader's insight into the physics underlying the subject. Amateur Telescope MakingFirst, some history about how the Amateur Telescope Making books came to be. In the early 1920s a naturally curious fellow, Albert Ingalls, happened to read an article in an obscure magazine by an even more curious fellow, Russell Porter. The article was about the "Poor Man's" telescope and told the story of how a group of Vermont villagers built their own reflecting telescopes. It was to be a fateful event because Albert Ingalls was an editor of Scientific American magazine and telescope making was about to gain a much larger audience through America's preeminent science magazine. Ingalls and Porter would, during the next 30 years, create and inspire from others a body of literature that would eventually span a three-volume set of books. |
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