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Author:
Publisher:
ISBN:
Category : Tektite
Languages : en
Pages : 22
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Author:
Publisher:
ISBN:
Category : Tektite
Languages : en
Pages : 22
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Book Description
Author: John Aloysius O'Keefe
Publisher: Elsevier Science & Technology
ISBN:
Category : Nature
Languages : en
Pages : 276
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Author: John Aloysius O'Keefe
Publisher:
ISBN:
Category : Tektite
Languages : en
Pages : 38
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Book Description
Author: Dean R. Chapman
Publisher:
ISBN:
Category : Ablation (Aerothermodynamics)
Languages : en
Pages : 80
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 792
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Author: Grant Heiken
Publisher: CUP Archive
ISBN: 9780521334440
Category : Science
Languages : en
Pages : 796
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Book Description
The only work to date to collect data gathered during the American and Soviet missions in an accessible and complete reference of current scientific and technical information about the Moon.
Author: Gerald Joseph Home McCall
Publisher: Geological Society of London
ISBN: 9781862390850
Category : Science
Languages : en
Pages : 268
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Book Description
This text commences with the history of tektites, from mediaeval China, through finds in Czechoslovakia in the 18th century and Darwin's description while on the Beagle, to 20th-century finds in South East Asia, the Ivory Coast and the USA. The four major strewn fields are described, followed by their extension by deep sea finds of microtektites and the recognition of irregular, large layered tektites in SE Asia.
Author: Joseph Seckbach
Publisher: John Wiley & Sons
ISBN: 1119640938
Category : Science
Languages : en
Pages : 354
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Book Description
An in-depth view of the panspermia hypothesis examined against the latest knowledge of planetary formation and related processes. Panspermia is the concept that life can be passively transported through space on various bodies and seed, habitable planets and moons, which we are beginning to learn may exist in large numbers. It is an old idea, but not popular with those who prefer that life on Earth started on Earth, an alternative, also unproven hypothesis. This book updates the concept of panspermia in the light of new evidence on planet formation, molecular clouds, solar system motions, supernovae ejection mechanisms, etc. Thus, it is to be a book about newly understood prospects for the movement of life through space. The novel approach presented in this book gives new insights into the panspermia theory and its connection with planetary formation and the evolution of galaxies. This offers a good starting point for future research proposals about exolife and a better perspective for empirical scrutiny of panspermia theory. Also, the key to understanding life in the universe is to understand that the planetary formation process is convolved with the evolution of stellar systems in their galactic environment. The book provides the synthesis of all these elements and gives the readers an up-to-date insight on how panspermia might fit into the big picture. Audience Given the intrinsic interdisciplinary nature of the panspermia hypothesis the book will have a wide audience across various scientific disciplines covering astronomy, biology, physics and chemistry. Apart from scientists, the book will appeal to engineers who are involved in planning and realization of future space missions.
Author: Dean R. Chapman
Publisher:
ISBN:
Category : Ablation (Aerothermodynamics)
Languages : en
Pages : 36
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Geomagnetism
Languages : en
Pages : 986
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Book Description
