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Space: Mankind's Fourth Environment focuses on the emerging trends in astronomy, taking into consideration space transportation and exploration. Along with this topic are various technological developments that are widely used and considered with space, referred to in this book as humankind's ""fourth environment"", as another potential destination of man. Divided into four parts, the book points at different challenges and problems related to the consideration of space as another environment for humankind, which is observed in the manned space flight programs of the United States and Russia. The book gives emphasis on the improvement of space technology, particularly the use of satellites in communication, emphasizing the use of Intelsat 5 and European L-sat in broadcast system. Studies on active and passive microwave sensors are discussed and a discussion on the medical results of a manned space flight is also presented. The book will surely boost the interest of astronomers and those interested in space technology and exploration.
Between 1988 & 1993 over fifty nations have either enacted new mining legislation, had such legislation pending adoption or were in the process of drafting new or revised legislation. In almost every case, this legislation carried with it changes in the fiscal regimes. The ability to attract mineral investment, be it in either a developed or a developing country, is partly dependent on the legislative & fiscal systems which regulate the industry. In the light of the changes taking place, this new reference work is timely & provides essential reading for those with an interest in mining taxation. The first part of the book analyses general topics which are applicable to understanding the taxation of mineral enterprises, while the second part provides a comprehensive & detailed account of actual taxation systems & methods.
Astrophysicist and space pioneer James Van Allen (1914–2006), for whom the Van Allen radiation belts were named, was among the principal scientific investigators for twenty-four space missions, including Explorer I in 1958, the first successful U.S. satellite; Mariner 2’s 1962 flyby of Venus, the first successful mission to another planet; and the 1970s Pioneer 10 and Pioneer 11 missions that surveyed Jupiter and Saturn. Although he retired as a University of Iowa professor of physics and astronomy in 1985, he remained an active researcher, using his campus office to monitor data from Pioneer 10—on course to reach the edge of the solar system when its signal was lost in 2003—until a short time before his death at the age of ninety-one. Now Abigail Foerstner blends space science drama, military agendas, cold war politics, and the events of Van Allen’s lengthy career to create the first biography of this highly influential physicist. Drawing on Van Allen’s correspondence and publications, years of interviews with him as well as with more than a hundred other people, and declassified documents from such archives as the Jet Propulsion Laboratory, the Kennedy Space Center, and the Applied Physics Laboratory, Foerstner describes Van Allen’s life from his Iowa childhood to his first experiments at White Sands to the years of Explorer I until his death in 2006. Often called the father of space science, James Van Allen led the way to mapping a new solar system based on the solar wind, massive solar storms, and cosmic rays. Pioneer 10 alone sent him more than thirty years of readings that helped push our recognition of the boundary of the solar system billions of miles past Pluto. Abigail Foerstner’s compelling biography charts the eventful life and time of this trailblazing physicist.
The Extraterrestrial Encyclopedia is an A-to-Z of the search for life in the Universe. Entries cover astrobiology, the origins and evolution of life, the hunt for exoplanets, SETI, and extraterrestrial life in science fiction, philosophy, and popular speculation (including UFOs). The book is written in an engaging style for the layperson and contains numerous B&W illustrations. Keywords: Encylopedia, ET, SETI, Science, Extraterrestrial, Origins, Evolution, Planets, Universe, David, Darling, Dirk, Schulze Makuch, Stars, Life
Hypersonics is the study of flight at speeds where aerodynamic heating dominates the physics of the problem. Typically this is Mach 5 and higher. Hypersonics is an engineering science with close links to supersonics and engine design. Within this field, many of the most important results have been experimental. The principal facilities have been wind tunnels and related devices, which have produced flows with speeds up to orbital velocity. Why is it important? Hypersonics has had two major applications. The first has been to provide thermal protection during atmospheric entry. Success in this enterprise has supported ballistic-missile nose cones, has returned strategic reconnaissance photos from orbit and astronauts from the Moon, and has even dropped an instrument package into the atmosphere of Jupiter. The last of these approached Jupiter at four times the speed of a lunar mission returning to Earth. Work with re-entry has advanced rapidly because of its obvious importance. The second application has involved high-speed propulsion and has sought to develop the scramjet as an advanced airbreathing ramjet. Scramjets are built to run cool and thereby to achieve near-orbital speeds. They were important during the Strategic Defense Initiative, when a set of these engines was to power the experimental X-30 as a major new launch vehicle. This effort fell short, but the X-43A, carrying a scramjet, has recently flown at Mach 9.65 by using a rocket. Atmospheric entry today is fully mature as an engineering discipline. Still, the Jupiter experience shows that work with its applications continues to reach for new achievements. Studies of scramjets, by contrast, still seek full success, in which such engines can accelerate a vehicle without the use of rockets. Hence, there is much to do in this area as well. For instance, work with computers may soon show just how good scramjets can become. NASA SP-2007-4232