Author:
Publisher: NV Bureau of Mines & Geology
ISBN:
Category :
Languages : en
Pages : 106

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Author:
Publisher: New York : Scarecrow Press
ISBN:
Category : Geological surveys
Languages : en
Pages : 684

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Author:
Publisher:
ISBN:
Category : Geology, Economic
Languages : en
Pages : 772

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Author: Lockheed Martin
Publisher:
ISBN: 9781882771394
Category : Aerospace industries
Languages : en
Pages : 271

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Author: G. P. Kruseman
Publisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 388

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Author: Chad Randl
Publisher: Government Printing Office
ISBN: 9780160815072
Category : Historic buildings
Languages : en
Pages : 16

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Author: Robert D. McCracken
Publisher: Nye Country Press
ISBN: 9781878138545
Category : History
Languages : en
Pages : 179

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"Of all the camps that appeared in the wake of the Rhyolite [mining] boom, the nearby community of Beatty was the only one to survive. Situated at the end of the Oasis Valley, Beatty had two assets the others lacked: plenty of water and easy accessibility....The changing role of mining in Beatty is traced as is tourism's steadily increasing importance. The history of Beatty is a story of hardworking, enterprising people building a community on America's desert frontier"--Bk. jacket.

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: DIANE Publishing
ISBN: 1428990461
Category :
Languages : en
Pages : 278

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Author: United States. Office of Management and Budget
Publisher:
ISBN:
Category : Budget
Languages : en
Pages : 334

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