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Author : Dana Meachen Rau
Publisher : Capstone
Page : 14 pages
File Size : 53,5 Mb
Release : 2006
Category : Juvenile Nonfiction
ISBN : 9781404811386
A very basic introduction to the planets of our solar system.
Author : Claire Bampton,David Hawcock
Publisher : Reader's Digest Children's Books
Page : 0 pages
File Size : 54,7 Mb
Release : 1999-03
Category : Solar system
ISBN : 1575842831
Kids explore the spatial environment when they journey through the solar system and acquire important facts on the Sun, the nine planets, and their Moons. Full color. 4 spreads.
Author : Jerrold H. Suddath
Publisher : Unknown
Page : 20 pages
File Size : 45,7 Mb
Release : 1961
Category : Artificial satellites
ISBN : UIUC:30112106632133
Summary: A theoretical study was made of the angular motions of spinning bodies in space. The analysis was based on Euler's dynamic equations which were linearized and solved analytically. The results of the study are directly applicable only to spin-stabilized vehicles with constant moments of inertia and angular displacements not exceeding about 15°. Simple analytical expressions were obtained which relate angular motions to spin-rate and inertia distributions for a given disturbance. Consideration was given to the effects produced by having artificial damping in the system. The study included numerical examples and comparisons of analytical solutions with machine solutions of exact dynamic equations. The analysis indicated that angular motions are sensitive to inertia distributions. In considering a rectangular-pulse pitching moment, it was found that the residual motion was very sensitive to the time at which the moment was removed. Artificial damping due to a perfect proportional control system seemed to be more advantageous to pencil-like configurations than to disk-like configurations.
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 54,6 Mb
Release : 2000-09
Category : Electronic
ISBN : 0739827413
Author : Tom Chapin,John Forster
Publisher : Atheneum Books for Young Readers
Page : 40 pages
File Size : 42,8 Mb
Release : 2020-11-03
Category : Juvenile Fiction
ISBN : 9781534445321
Based on the touching song “This Pretty Planet” by Tom Chapin and John Forster, this hopeful and whimsically illustrated picture book celebrates the pretty planet we call home. Winds blow. Tides flow. Shooting stars descend. Our lives begin, middle, and end on This pretty planet. From icy tundras to sandy beaches, lush forests to tall mountains, this exuberant picture book journeys around the globe and presents the natural wonders of the planet with a contagious sense of awe and whimsy. Young readers will get lost in the detailed illustrations as the narration serves as a gentle reminder of why we must care for and protect our pretty planet.
Author : Brian James
Publisher : Cartwheel Books
Page : 0 pages
File Size : 47,8 Mb
Release : 2010
Category : Planets
ISBN : 0545235170
"Get to explore the solar system one planet at a time, counting down from Mercury to Nepture!"--P. [4] of cover.
Author : Dana Meachen Rau
Publisher : Capstone
Page : 28 pages
File Size : 42,7 Mb
Release : 2006
Category : Juvenile Nonfiction
ISBN : 1404811389
A very basic introduction to the planets of our solar system.
Author : Edward Payson Jackson
Publisher : Unknown
Page : 104 pages
File Size : 50,9 Mb
Release : 1887
Category : Astronomical geography
ISBN : HARVARD:32044097027908
Author : Edward Payson Jackson
Publisher : Unknown
Page : 108 pages
File Size : 51,5 Mb
Release : 1898
Category : Astronomical geography
ISBN : CHI:19127492
Author : Ralph D. Lorenz
Publisher : Springer Science & Business Media
Page : 369 pages
File Size : 54,8 Mb
Release : 2007-02-02
Category : Science
ISBN : 9780387472898
More frisbees are sold each year than baseballs, basketballs and footballs combined. Yet these familiar flying objects have subtle and clever aerodynamic and gyrodynamic properties which are only recently being documented by wind tunnel and other studies. In common with other rotating bodies discussed in this readily accessible book, they are typically not treated in textbooks of aeronautics and the literature is scattered in a variety of places. This book develops the theme of disc-wings and spinning aerospace vehicles in parallel. Since many of the examples are recreational, anyone who enjoys these activities will likely find it profitable and enjoyable. In addition to spinning objects of various shapes, several exotic manned aircraft with disc planforms have been proposed and a prototypes built – these include a Nazi ‘secret weapon’ and the De Havilland Avrocar, also discussed in the book. Boomerangs represent another category of spinning aerodynamic body whose behavior can only be understood by coupling aerodynamics with gyrodynamics. The narrative, supported by equations and graphs, explains how the shape and throw of a boomerang relates to its trajectory. The natural world presents still other examples, namely the samaras or ‘seed-wings’ of many tree species, which autorotate during their descent, like a helicopter whose engine has failed. The flight performance of these spinning wings directly affects the dispersal and thus the evolutionary competitiveness of the trees concerned. Samara-type configurations are also considered for instrumentation and other payload dispersal applications. In short, the book discusses a range of familiar, connected, but largely undeveloped, topics in an accessible, but complete, manner. From the reviews of the first edition: "In his fascinating book Spinning Flight, Ralph Lorenz provides a rich feast of ... examples of spinning bodies ... . The book is well organized ... . The discussion in the book ... should be accessible to readers with some elementary understanding of aerodynamic principles. For the expert, the book is full of open problems ... . Its scope is extensive ... . In this respect, there may be something for everyone within its attractively designed cover ... ." (H. K. Moffatt, Nature, Vol. 444, December, 2006) "If you liked physics at school, then this book is for you. It concerns itself with flying objects that spin through the air, and even tells you how to impress your friends with the biomechanics of Frisbees. ... there is plenty of information at all levels, and the book has a wealth of detail that only an aerospace engineer like Lorenz could have come up with." (Len Fisher, BBC Focus, February, 2007)
Author : John A. Eddy
Publisher : Government Printing Office
Page : 316 pages
File Size : 49,7 Mb
Release : 2009
Category : Business & Economics
ISBN : 0160838088
" ... Concise explanations and descriptions - easily read and readily understood - of what we know of the chain of events and processes that connect the Sun to the Earth, with special emphasis on space weather and Sun-Climate."--Dear Reader.
Author : Mark Moldwin
Publisher : Cambridge University Press
Page : 225 pages
File Size : 40,8 Mb
Release : 2022-12-01
Category : Science
ISBN : 9781108856614
Our space age technology enables global communication, navigation, and power distribution that has given rise to our 'smart', interconnected and spacefaring world. Much of the infrastructure modern society depends on, to live on Earth and to explore space, is susceptible to space weather storms originating from the Sun. The Second Edition of this introductory textbook is expanded to reflect our increased understanding from more than a dozen scientific missions over the past decade. Updates include discussions of the rapidly expanding commercial space sector, orbital debris and collision hazards, our understanding of solar-terrestrial connections to climate, and the renewed emphasis of human exploration of the Moon and Mars. It provides new learning features to help students understand the science and solve meaningful problems, including some based on real-world data. Each chapter includes learning objectives and supplements that provide descriptions of the science and learning strategies to help students and instructors alike.
Author : Graham Winston
Publisher : Xlibris Corporation
Page : 83 pages
File Size : 50,5 Mb
Release : 2012-05-15
Category : Nature
ISBN : 9781469192888
Global warming is a major phenomenon that is negatively affecting Earth. But what most people dont realize is that this effect is not limited within the planets atmosphere; it may also affect Earths journey through space. In Global Warming and Earths Evolution, author Graham Winston reveals that the bigger picture is bigger than Global Warming and Global Warming is only the tip of the iceberg of Earths own challenges. The book describes the real truths of Global Warming is mainly caused by mans unnecessary destruction of natural resources earth depends on to be in a good condition to successfully complete its next evolution cycle. The book explains the importance of the cycles and what evolutionary changes occurred on earth. Many previous unexplained phenomena could be linked to earths evolutionary cycles. The extinction of the dinosaur, the birth of the Grand Canyon: why has no large object recently collided with the Moon when millions of craters exist on the Moon? Why has the impacts stopped and when will the impacts start happening again? These and other fascinating examples of unsolved phenomena will open the minds of many readers to this new dimension of thinking what happened on earth millions of years ago and whether earth will survive the next evolutionary cycle. Global Warming has caused a negative effect on earth natural defense mechanism earth depends on to survive the severe challenges when close to the core of the Milky Way Galaxy. About the Author Graham Winstons professional experience spans over 20 years and involves solving complex problems. To achieve success in these business fields Winston solved many complex problems. The common skill applied across these fields was the development of innovative thinking. This later led to apply these same problem-solving techniques on Global Warming and Earths evolution cycles to understand the relationship between Global Warming and Earths own evolutionary journey as Earth travels across the Universe.
Author : Demetris Nicolaides
Publisher : Oxford University Press, USA
Page : 187 pages
File Size : 45,5 Mb
Release : 2020-07
Category : Science
ISBN : 9780190098353
"In Search of a Theory of Everything is an adventurous journey in space and time in search of a unified "theory of everything" (TOE) by means of a rare and agile interplay between the natural philosophies of influential ancient Greek thinkers and the laws of modern physics. For a TOE, all the phenomena of nature share a subtle underlying commonality and are explainable by a single overarching immutable principle. Reading the past for what it is, is of tremendous value, but so is its reading from the perspective of modern knowledge. Not to judge it for its flaws but to be inspired by its insights. This comparative study of the universe is the spirit of In Search of a Theory of Everything-to physics through philosophy, to the new via the old, and in a balanced way. A relatively "easier" analysis of nature, that of a major natural philosopher of antiquity, commences every chapter to fasten the bedrock for the more complex. The transition into the more complicated views of modern physics is gradual and systematic, entwining finely the two, the ancient with the new, the forgotten with the current, by unfolding a history and a philosophy of science, and connecting all the great feats of the mind and time. Those philosophers had ideas that resonate with aspects of modern science; puzzles that still baffle; and rationales that can be used to reassess completely anew fundamental but competing principles of modern physics, even to speculate about open physics problems. In Search of a Theory of Everything is a new kind of sight, is a philosophical insight of modern physics"--
Author : Hodder & Stoughton
Publisher : Unknown
Page : 128 pages
File Size : 47,7 Mb
Release : 2000-04-17
Category : Electronic
ISBN : 075003095X
