Download or read book Cometas y meteoros en abril written by Mark Kidger and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cometas y Meteoros written by Chana Stiefel and published by Encyclopaedia Britannica. This book was released on 2017-04-01 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cometas y meteoros Atravesando el espacio written by Stiefel and published by Carson-Dellosa Publishing. This book was released on 2019-01-25 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be predicted.
Download or read book Cometas y meteoros en marzo written by Mark Kidger and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book COMETAS asteroides y meteoritos written by and published by . This book was released on 1994 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book More Universe at Your Fingertips written by Andrew Fraknoi and published by Astronomical Society of the pacific. This book was released on 2000 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because the original was so popular, the geniuses behind Project ASTRO have created an additional volume of activities. These 25 activities explore and explain mysteries of the universe: the moon's phases, the reasons for the seasons, comets and meteors, stars, and space exploration. Also designed in loose-leaf format, More Universe... is a great supplement to the original, or a perfect sampler if you want to start small.
Download or read book A History of Western Astrology written by S. J. Tester and published by Boydell & Brewer Ltd. This book was released on 1987 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superb general account.' Times Literary Supplement The story of the history of Western astrology begins with the philosophers of Greece in the 5th century BC. To the magic and stargazing of Egypt the Greeks added numerology, geometryand rational thought. The philosophy of Plato and later of the Stoics made astrology respectable, and by the time Ptolemy wrote his textbook the Tetrabiblos, in the second century AD, the main lines of astrological practice as it is known today had already been laid down. In future centuries astrology shifted to Islam only to return to the West in medieval times where it flourished until the shift of ideas during the Renaissance.
Download or read book Active Galactic Nuclei and Related Phenomena written by International Astronomical Union. Symposium and published by . This book was released on 1999 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: A looseleaf (3-hole punched, binder not included) resource guide that includes a wide range of activities, annotated resource lists, and background readings, primarily for teachers who would like to incorporate more astronomy into their classroom work but may be held back by their own limited backgr
Download or read book Physics From Stargazers to Starships written by David P. Stern and published by CK-12 Foundation. This book was released on 2012-05-08 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to astronomy written with a historical perspective.
Download or read book O Panorama written by and published by . This book was released on 1837 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defending Planet Earth written by National Research Council and published by National Academies Press. This book was released on 2010-07-21 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States spends approximately $4 million each year searching for near-Earth objects (NEOs). The objective is to detect those that may collide with Earth. The majority of this funding supports the operation of several observatories that scan the sky searching for NEOs. This, however, is insufficient in detecting the majority of NEOs that may present a tangible threat to humanity. A significantly smaller amount of funding supports ways to protect the Earth from such a potential collision or "mitigation." In 2005, a Congressional mandate called for NASA to detect 90 percent of NEOs with diameters of 140 meters of greater by 2020. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies identifies the need for detection of objects as small as 30 to 50 meters as these can be highly destructive. The book explores four main types of mitigation including civil defense, "slow push" or "pull" methods, kinetic impactors and nuclear explosions. It also asserts that responding effectively to hazards posed by NEOs requires national and international cooperation. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies is a useful guide for scientists, astronomers, policy makers and engineers.
Download or read book Planetary Defense written by Nikola Schmidt and published by Springer. This book was released on 2018-12-26 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planetary defense from near-Earth objects such as asteroids is a far more nuanced and challenging topic than it might seem. Each day, technology is making it easier to detect asteroid impact threats in advance, but at present, there is still no easy way to design and implement any form of global defense. This book examines how various asteroid deflection methods can change global political affairs. The authors believe that the final policy for potential Earth impacts should be based on practical engineering solutions and innovative architectural structures, while at the same time reflecting the most recent political science contributions in ethical security studies and security cosmopolitanism. Their focus is not limited to effective engineering solutions, but rather extends to how such proposals resonate in possible political structures of the future. Planetary defense cannot be achieved with technology alone; the chapters in this volume highlight the issues that arise when space science and technology intersect with political science. This complex interdisciplinary project not only demands global participation and collaboration, but also proposes the way we can achieve it. The authors explore various concepts of governance and their far-reaching implications for planetary defense and vice versa—how scientific progress in Solar System observations and asteroid collision engineering influence political science and put pressure on the international legal framework. The text is intentionally written for a diverse scholarly and diplomatic audience in a style accessible to non-specialists and practitioners and can be read by those across diverse disciplinary backgrounds.
Download or read book Encyclopaedia Britannica written by and published by . This book was released on 1797 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historic Macao written by Carlos Augusto Montalto Jesus and published by . This book was released on 1902 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Asteroids III written by William Frederick Bottke and published by University of Arizona Press. This book was released on 2002-01-01 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two hundred years after the first asteroid was discovered, asteroids can no longer be considered mere points of light in the sky. Spacecraft missions, advanced Earth-based observation techniques, and state-of-the-art numerical models are continually revealing the detailed shapes, structures, geological properties, and orbital characteristics of these smaller denizens of our solar system. This volume brings together the latest information obtained by spacecraft combined with astronomical observations and theoretical modeling, to present our best current understanding of asteroids and the clues they reveal for the origin an,d evolution of the solar system. This collective knowledge, prepared by a team of more than one hundred international authorities on asteroids, includes new insights into asteroid-meteorite connections, possible relationships with comets, and the hazards posed by asteroids colliding with Earth. The book's contents include reports on surveys based on remote observation and summaries of physical properties; results of in situ exploration; studies of dynamical, collisional, cosmochemical, and weathering evolutionary processes; and discussions of asteroid families and the relationships between asteroids and other solar system bodies. Two previous Space Science Series volumes have established standards for research into asteroids. Asteroids III carries that tradition forward in a book that will stand as the definitive source on its subject for the next decade.
Download or read book Legal Aspects of Planetary Defence written by Irmgard Marboe and published by BRILL. This book was released on 2021-09-27 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impacts by asteroids or comets on Earth may lead to natural disasters of catastrophic dimensions. This book addresses legal and policy aspects of ‘planetary defence’ activities by space agencies and other actors aiming at the prediction and mitigation of Near-Earth Objects (NEOs).
Download or read book Hazards Due to Comets and Asteroids written by Tom Gehrels and published by University of Arizona Press. This book was released on 1994 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
