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Tektite Ablation Study
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Book Synopsis Aerodynamic Analysis of Tektites and Their Parent Bodies by : E. W. Adams
Download or read book Aerodynamic Analysis of Tektites and Their Parent Bodies written by E. W. Adams and published by . This book was released on 1962 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment and analysis indicate that the button-type australites were derived from glassy spheres which entered or re-entered the atmosphere as cold solid bodies; in case of average-size specimens, the entry direction was nearly horizontal and the entry speed between 6.5 and 11.2 km/sec. Terrestrial origin of such spheres is impossible because of extremely high deceleration rates at low altitudes. The limited extension of the strewn fields rules out extraterrestrial origin of clusters of such spheres because of stability considerations for clusters in space. However, tektites may have been released as liquid droplets from glassy parent bodies ablating in the atmosphere of the earth. The australites then have skipped together with the parent body in order to re-enter as cold spheres. Terrestrial origin of a parent body would require an extremely violent natural event. Ablation analysis shows that fusion of opaque siliceous stone into glass by aerodynamic heating is impossible.
Book Synopsis Aerodynamic Evidence Pertaining to the Entry of Tektites Into the Earth's Atmosphere by : Dean R. Chapman
Download or read book Aerodynamic Evidence Pertaining to the Entry of Tektites Into the Earth's Atmosphere written by Dean R. Chapman and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence is presented which shows that the Australian and Java tektites entered the earth's atmosphere and experienced ablation by severe aerodynamic heating in hypervelocity flight. The laboratory experiments on hypervelocity ablation have reproduced ring-wave flow ridges and coiled circumferential flanges like those found on certain of these tektites. Systematic striae distortions exhibited in a thin layer beneath the front surface of australites also are reproduced in the laboratory ablation experiments, and are shown to correspond to the calculated distortions for aerodynamic ablation of a glass. About 98 percent of Australian tektites represent aerodynamically stable configurations during the ablative portion of an entry trajectory. Certain meteorites exhibit surface features similar to those on tektites.
Book Synopsis Surface Effects Resulting from Tektite Ablation by : J. O. Golden
Download or read book Surface Effects Resulting from Tektite Ablation written by J. O. Golden and published by . This book was released on 1968 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vapor Pressure and Vapor Fractionation of Tektite Melts by : Louis S. Walter
Download or read book Vapor Pressure and Vapor Fractionation of Tektite Melts written by Louis S. Walter and published by . This book was released on 1964 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Meteorite Impacts and Planetary Evolution by : B. O. Dressier
Download or read book Large Meteorite Impacts and Planetary Evolution written by B. O. Dressier and published by Geological Society of America. This book was released on 1994-01-01 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises 28 papers which grew out of the International Conference on Large Meteorite Impacts and Planetary Evolution, August/September, 1992 in Sudbury, Ontario. The interdisciplinary papers, encompassing diverse studies from trace element geochemistry to planetary exploration, are arranged into f
Book Synopsis The Lunar Origin of Tektites by : Dean R. Chapman
Download or read book The Lunar Origin of Tektites written by Dean R. Chapman and published by . This book was released on 1963 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Report written by and published by . This book was released on 1964 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geological Survey Research 1965 by :
Download or read book Geological Survey Research 1965 written by and published by . This book was released on 1965 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation and Reentry written by S Penner and published by Elsevier. This book was released on 2012-12-02 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation and Reentry is an integrated review of a series of publications dealing with radiative transfer theory, applied spectroscopy, radiation gas dynamics, and ablation phenomena. This book contains seven chapters and begins with a presentation of opacity calculations under conditions for which detailed considerations of spectral line structures and widths are not required. The discussion then shifts to the basic methods involved in the formulation of radiative transfer problems; origin and definition of the Planck and Rosseland mean free paths; the conservation equations for reacting, multicomponent gas mixtures with proper allowance for radiative energy flux; and similarity parameters in radiation gas dynamics. These topics are followed by a summary of data relevant to the optically thick, optically thin, and isothermal cases for air in local thermodynamic equilibrium. A chapter describes the radiative properties of spherical particles and their particle size distributions. Another chapter considers the estimation of radiant-energy transmission through atmosphere. The concluding chapters explore the radiation transfer effects on the flow about a re-entry body and the specific problems of the effect of radiant-energy transfer on acoustic waves, shock wave structure, and shock and boundary layers. These chapters also examine the theoretical and experimental studies on the ablation of re-entry vehicles. This book is of great value to educated nonspecialists who are interested in the application of radiation field to high-speed atmospheric entry.
Download or read book Lunar Surface Studies written by and published by . This book was released on 1964 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1968 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Lunar and Planetay Research by :
Download or read book Bibliography of Lunar and Planetay Research written by and published by . This book was released on 1960 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Science and Astronautics Publisher : ISBN 13 : Total Pages :788 pages Book Rating :4.0/5 (18 download)
Book Synopsis 1967 NASA Authorization by : United States. Congress. House. Committee on Science and Astronautics
Download or read book 1967 NASA Authorization written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1966 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1978 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Geophysical Abstracts ... written by and published by . This book was released on 1967 with total page 1436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geophysical Abstracts by : Geological Survey (U.S.)
Download or read book Geophysical Abstracts written by Geological Survey (U.S.) and published by . This book was released on 1967 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Surface Ablation of Noncharring Materials with Description of Associated Computing Program by : Fred W. Matting
Download or read book Analysis of Surface Ablation of Noncharring Materials with Description of Associated Computing Program written by Fred W. Matting and published by . This book was released on 1966 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
