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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 386
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 386
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 466
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 652
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Book Description
Author: Judy A. Rumerman
Publisher:
ISBN: 9780160502668
Category : Space flight
Languages : en
Pages : 646
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Book Description
Author: T. A. Heppenheimer
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 364
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Book Description
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
Author:
Publisher: Government Printing Office
ISBN: 9780160867118
Category :
Languages : en
Pages : 488
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Book Description
Author: Stephen J. Dick
Publisher: U. S. National Aeronautics & Space Administration
ISBN:
Category : Business & Economics
Languages : en
Pages : 680
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Book Description
In March 2005, the NASA History Division and the Division of Space History at the National Air and Space Museum brought together a distinguished group of scholars to consider the state of the discipline of space history. This volume is a collection of essays based on those deliberations. The meeting took place at a time of extraordinary transformation for NASA, stemming from the new Vision of Space Exploration announced by President George W. Bush in January 204: to go to the Moon, Mars, and beyond. This Vision, in turn, stemmed from a deep reevaluation of NASA?s goals in the wake of the Space Shuttle Columbia accident and the recommendations of the Columbia Accident Investigation Board. The new goals were seen as initiating a "New Age of Exploration" and were placed in the context of the importance of exploration and discovery to the American experiences. (Amazon).
Author: Steven J. Dick
Publisher: U. S. National Aeronautics & Space Administration
ISBN:
Category : Business & Economics
Languages : en
Pages : 704
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Book Description
Since the dawn of spaceflight, advocates of a robust space effort have argued that human activity beyond Earth makes a significant difference in everyday life. Assertions abound about the "impact" of spaceflight on society and its relationship to the larger contours of human existence. Fifty years after the Space Age began, it is time to examine the effects of spaceflight on society in a historically rigorous way. Has the Space Age indeed had a significant effect on society? If so, what are those influences? What do we mean by an "impact" on society? And what parts of society? Conversely, has society had any effect on spaceflight? What would be different had there been no Space Age? The purpose of this volume is to examine these and related questions through scholarly research, making use especially of the tools of the historian and the broader social sciences and humanities. Herein a stellar array of scholars does just that, and arrives at sometimes surprising conclusions.
Author: Curtis Peebles
Publisher:
ISBN:
Category : Aerospace engineers
Languages : en
Pages : 216
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Book Description
Author: Robert C. Seamans
Publisher: U. S. National Aeronautics & Space Administration
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 326
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Book Description
An essential volume in the NASA History Series by Robert C. Seamans, Jr., the Associate Administrator of NASA during the Apollo program. A stirring insider's account of NASA and the manned space program at the highest levels. Relationships with the Department of Defense, the Apollo 204 fire, the assassination of President Kennedy, and more. Aiming at Targets is a series of fascinating topical vignettes covering the author's professional life. Taken together, like broad brushstrokes in an impressionist painting, they give a better picture of Bob Seamans and his work than a detailed recitation of facts and dates could hope to do. This is a cheerful account of an interesting and successful career. The book is full of good stories, with many memorable characters. Like the proverbial sundial, it counts the sunny hours.
