Cometas y meteoros: Atravesando el espacio PDF Download

Author: Stiefel
Publisher: Carson-Dellosa Publishing
ISBN: 1731602642
Category : Juvenile Nonfiction
Languages : es
Pages : 27

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Book Description
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.

Author: Kyla Steinkraus
Publisher:
ISBN: 9781631559228
Category : Jupiter (Planet)
Languages : en
Pages :

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Book Description
The four planets farthest from the Sun are called the gas giants. Jupiter, Saturn, Uranus, and Neptune are different from the other planets in our solar system. They are not solid, but are made of liquids and clouds of gas with gravity pulling it all together into a planet shape. Learn facts about the climate, gases, size, and other quirky things each of these planets possess. This book isn't filled with hot air! Pull out your telescope and see if you can observe one of these planets. This book will allow students to understand that patterns in the natural world can be observed, used to describe phenomena, and used as evidence.

Author: Andrew Fraknoi
Publisher: Astronomical Society of the pacific
ISBN: 9781886733985
Category : Science
Languages : en
Pages : 118

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Book Description
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.

Author: International Astronomical Union. Symposium
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 514

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Book Description
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

Author: Karl Taube
Publisher: University of Texas Press
ISBN: 9780292781306
Category : Social Science
Languages : en
Pages : 84

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Book Description
The myths of the Aztec and Maya derive from a shared Mesoamerican cultural tradition. This is very much a living tradition, and many of the motifs and gods mentioned in early sources are still evoked in the lore of contemporary Mexico and Guatemala. Professor Taube discusses the different sources for Aztec and Maya myths. The Aztec empire began less than 200 years before the Spanish conquest, and our knowledge of their mythology derives primarily from native colonial documents and manuscripts commissioned by the Spanish. The Maya mythology is far older, and our knowledge of it comes mainly from native manuscripts of the Classic period, over 600 years before the Spanish conquest. Drawing on these sources as well as nineteenth- and twentieth-century excavations and research, including the interpretation of the codices and the decipherment of Maya hieroglyphic writing, the author discusses, among other things, the Popol Vuh myths of the Maya, the flood myth of Northern Yucatan, and the Aztec creation myths.

Author: J. Norman Lockyer
Publisher: Courier Dover Publications
ISBN: 0486450120
Category : Science
Languages : en
Pages : 465

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Book Description
A pioneer in the fields of astrophysics and astro-archeology, J. Norman Lockyer believed that ancient Egyptian monuments were constructed "in strict relation to the stars." In this celebrated study, he explores the relationship between astronomy and architecture in the age of the pharaohs. Lockyer addresses one of the many points already extensively investigated by Egyptologists: the chronology of the kings of Egypt. All experts are in accord regarding the identity of the first monarch, but they cannot agree upon the dates of his reign within a thousand years. The author contends that by applying a knowledge of astronomy to the actual site orientation of the region's pyramids and temples, accurate dating can be achieved. In order to accomplish this, Lockyer had to determine the level of the ancient Egyptian ideas of astronomy. Some of his inferences have been invalidated by subsequent scholarship, but many of his other conclusions stand firm and continue to provide sensational leads into contemporary understanding of archaic astronomy.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309149681
Category : Science
Languages : en
Pages : 152

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Book Description
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.

Author: Nikola Schmidt
Publisher: Springer
ISBN: 3030010007
Category : Political Science
Languages : en
Pages : 496

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Book Description
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.

Author: Clive L. N. Ruggles
Publisher: Cambridge University Press
ISBN: 9781107019782
Category : Science
Languages : en
Pages : 430

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Book Description
IAU Symposium 278, the ninth of the 'Oxford' conferences on cultural astronomy, presents a diverse range of disciplinary perspectives on a set of problems that continue to raise exciting and challenging new research questions and promote vigorous debate. It extends discussions about cultural astronomy beyond the community of 'Western' academics to focus on the ethnoastronomy and archaeoastronomy of South America, Central and North America, and elsewhere. Highlights include vigourous debates about Chankillo, a recently discovered solar observation site in coastal Peru dating to c. 300 BC. The first IAU Symposium devoted to this topic not only discusses new discoveries and interpretations but also considers broader issues of mutual interest across disciplines in cultural astronomy, such as field methodology and social theory. This volume is valuable not just to researchers working in these fields, but to anyone who takes an interest in the protection of astronomical heritage.

Author: William Frederick Bottke
Publisher: University of Arizona Press
ISBN: 9780816522811
Category : Science
Languages : en
Pages : 818

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Book Description
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.