Scientific and Technical Aerospace Reports PDF Download
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Author:
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Category : Aeronautics
Languages : en
Pages : 1038
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1038
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Book Description
Author: Edward F. McKenna
Publisher:
ISBN:
Category : Payloads (Aerospace engineering)
Languages : en
Pages : 20
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Book Description
Research has been conducted into the problems of avoiding collision between separated payloads and spent rocket motors due to post burnout thrust and into the problem of contamination of scientific instrumentation due to outgassing of the smoldering insulation. In order to measure this post burnout thrust, a payload instrument module was separated from an instrumented Black Brant VC Rocket in the exoatmosphere. In addition to measuring accelerations and velocities, the spent motor was observed by a TV camera on board the command attitude controlled payload module. Analysis shows that the payload separated cleanly from the vehicle at a relative separation velocity of 2.25 ft/sec (0.69 m/sec). However, the residual thrust of the spent motor overcame this differential, catching up to the payload 37 sec after separation and continuing on a parallel velocity vector at about 3.37 ft/sec (1.03 m/sec). (Author).
Author:
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Category : Aeronautical instruments
Languages : en
Pages : 264
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Author:
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Category : Science
Languages : en
Pages : 172
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Author:
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Category : Aeronautics
Languages : en
Pages : 600
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Author: Technology Reports Centre (Great Britain)
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Category :
Languages : en
Pages : 622
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Author: American Rocket Society
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Category : Airplanes
Languages : en
Pages : 1832
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Book Description
Author: P. J. E. Peebles
Publisher: Princeton University Press
ISBN: 0691234477
Category : Science
Languages : en
Pages : 432
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Book Description
From Nobel Prize–winning physicist P. J. E. Peebles, the story of cosmology from Einstein to today Modern cosmology began a century ago with Albert Einstein's general theory of relativity and his notion of a homogenous, philosophically satisfying cosmos. Cosmology's Century is the story of how generations of scientists built on these thoughts and many new measurements to arrive at a well-tested physical theory of the structure and evolution of our expanding universe. In this landmark book, one of the world's most esteemed theoretical cosmologists offers an unparalleled personal perspective on how the field developed. P. J. E. Peebles was at the forefront of many of the greatest discoveries of the past century, making fundamental contributions to our understanding of the presence of helium and microwave radiation from the hot big bang, the measures of the distribution and motion of ordinary matter, and the new kind of dark matter that allows us to make sense of these results. Taking readers from the field's beginnings, Peebles describes how scientists working in independent directions found themselves converging on a theory of cosmic evolution interesting enough to warrant the rigorous testing it passes so well. He explores the major advances—some inspired by remarkable insights or perhaps just lucky guesses—as well as the wrong turns taken and the roads not explored. He shares recollections from major players in this story and provides a rare, inside look at how science is really done. A monumental work, Cosmology's Century also emphasizes where the present theory is incomplete, suggesting exciting directions for continuing research.
Author:
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Category : Rocketry
Languages : en
Pages : 962
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Book Description
Beginning Oct. 1959 some issues include "Russian supplement."
Author: David K. Stumpf
Publisher: University of Arkansas Press
ISBN: 1682262553
Category : History
Languages : en
Pages : 184
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Book Description
"In the early eighties, as world superpowers engaged in the aggressive stockpiling of weapons of mass destruction, US president Ronald Reagan's announcement of the Strategic Defense Initiative began the development and coordination of missile technologies applicable to strategic defense against civilization's most dangerous inventions. While the initial focus of this effort was the intercontinental ballistic missiles carrying nuclear threats from the Soviet Union or China, by the end of the decade attention turned to potential ICBM threats from rogue states such as North Korea, Iran, and Iraq. And so, a new time for ballistic missile defense had begun. The Last Thirty Seconds: A Brief History of the Evolution of Hit-To-Kill Technology is a masterful record of the evolution of improved ballistic missile defense capabilities in the decades since the height of the nuclear arms race. With an exceptionally researched style, David K. Stumpf recounts the development of midcourse- and terminal-phase defense commonly known as "hit-to-kill," a nonnuclear technique at the center of current ballistic missile defense systems using kinetic energy rather than explosives for the destruction of reentry vehicles carrying chemical, biological, or nuclear warheads. With the aid of recently declassified documents, Stumpf guides the reader through the complex history of the evolution of a technology that many said could never be achieved, bringing its story to life with dozens of rare photographs and technical illustrations. While much of the subject remains classified, what is described in this detailed study will be welcomed by librarians, engineers, and high-technology history professionals for the depth of its access, the substance of its references, and the exposure of archival material on the missiles the have defined military defense from the Cold War to the present"--
