Hazards Due to Comets and Asteroids - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Hazards Due to Comets and Asteroids write by Tom Gehrels. This book was released on 1994. Hazards Due to Comets and Asteroids available in PDF, EPUB and Kindle. In 1993, the U.S. Department of Defense declassified information dealing with frequent explosions in the upper atmosphere caused by meteoric impact. It is estimated that impacts have occurred of a magnitude equivalent to the atomic bomb detonated at Hiroshima. Not all such space voyagers meet their end in the atmosphere, however; huge craters attest to the bombardment of earth over millions of years, and a major impact may have resulted in the extinction of dinosaurs. An impact in Siberia near the beginning of this century proves that such events are not confined to geologic time. Hazards Due to Comets and Asteroids marks a significant step in the attempt to come to grips with the threats posed by such phenomena. It brings together more than one hundred scientists from around the world, who draw on observational and theoretical research to focus on the technical problems related to all aspects of dealing with these hazards: searching for and identifying hazardous comets and asteroids; describing their statistics and characteristics; intercepting and altering the orbits of dangerous objects; and applying existent technologies—rocket boosters, rendezvous and soft-landing techniques, instrumentation—to such missions. The book considers defensive options for diverting or disrupting an approaching body, including solar sails, kinetic-energy impacts, nuclear explosives, robotic mass drivers, and various propulsion systems. A cataclysmic impact posing a threat to life on Earth is a possibility that tomorrow's technology is capable of averting. This book examines in depth the reality of the threat and proposes practical measures that can be initiated now should we ever need to deal with it.
Hazards Due to Comets and Asteroids
Hazards Due to Comets and Asteroids - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Hazards Due to Comets and Asteroids write by . This book was released on 1994. Hazards Due to Comets and Asteroids available in PDF, EPUB and Kindle.
Hazards Due to Comets and Asteroids
Hazards Due to Comets and Asteroids - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Hazards Due to Comets and Asteroids write by Tom Gehrels. This book was released on 2021-11-30. Hazards Due to Comets and Asteroids available in PDF, EPUB and Kindle. In 1993, the U.S. Department of Defense declassified information dealing with frequent explosions in the upper atmosphere caused by meteoric impact. It is estimated that impacts have occurred of a magnitude equivalent to the atomic bomb detonated at Hiroshima. Not all such space voyagers meet their end in the atmosphere, however; huge craters attest to the bombardment of earth over millions of years, and a major impact may have resulted in the extinction of dinosaurs. An impact in Siberia near the beginning of this century proves that such events are not confined to geologic time. Hazards Due to Comets and Asteroids marks a significant step in the attempt to come to grips with the threats posed by such phenomena. It brings together more than one hundred scientists from around the world, who draw on observational and theoretical research to focus on the technical problems related to all aspects of dealing with these hazards: searching for and identifying hazardous comets and asteroids; describing their statistics and characteristics; intercepting and altering the orbits of dangerous objects; and applying existent technologies—rocket boosters, rendezvous and soft-landing techniques, instrumentation—to such missions. The book considers defensive options for diverting or disrupting an approaching body, including solar sails, kinetic-energy impacts, nuclear explosives, robotic mass drivers, and various propulsion systems. A cataclysmic impact posing a threat to life on Earth is a possibility that tomorrow's technology is capable of averting. This book examines in depth the reality of the threat and proposes practical measures that can be initiated now should we ever need to deal with it.
Comet and Asteroid Impact Hazards on a Populated Earth
Comet and Asteroid Impact Hazards on a Populated Earth - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Comet and Asteroid Impact Hazards on a Populated Earth write by John S. Lewis. This book was released on 2000. Comet and Asteroid Impact Hazards on a Populated Earth available in PDF, EPUB and Kindle. Disk contains: HAZARDS version 5.5, designed to predict asteroid or comet impacts with the Earth.
Mitigation of Hazardous Comets and Asteroids
Mitigation of Hazardous Comets and Asteroids - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Mitigation of Hazardous Comets and Asteroids write by M. J. S. Belton. This book was released on 2004-09-06. Mitigation of Hazardous Comets and Asteroids available in PDF, EPUB and Kindle. It is known that large asteroids and comets can collide with the Earth with severe consequences. Although the chances of a collision in a person's lifetime are small, collisions are a random process and could occur at any time. This book collects the latest thoughts and ideas of scientists concerned with mitigating the threat of hazardous asteroids and comets. It reviews current knowledge of the population of potential colliders, including their numbers, locations, orbits, and how warning times might be improved. The structural properties and composition of their interiors and surfaces are reviewed, and their orbital response to the application of pulses of energy is discussed. Difficulties of operating in space near, or on the surface of, very low mass objects are examined. The book concludes with a discussion of the problems faced in communicating the nature of the impact hazard to the public.
