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"Birds Flight."
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Birds : nature's magnificent flying machines
An introduction to the science that explains how birds fly.
Book
Avian flight
Bird flight has always intrigued mankind. This book provides an up-to-date account of our existing knowledge on the subject, offering new insights and challenging some established views. A brief history of the science of flight introduces the basic physical principles governing aerial locomotion. This is followed by a treatment of flight-related functional morphology, concentrating on the difference in shape of the arm and hand part of the wings, on the structure and function of tails, and on the shape of the body. The anatomy and mechanical properties of feathers receive special attention. Aerodynamic principles used by birds are explained in theory by simply applying Newton'slaws, and in practice by showing the direction and velocity of the attached flow around an arm wing cross section and of the leading edge vortex flow above a hand wing. The Archaeopteryx fossils remain crucial in our understanding of the evolution of bird flight despite the recent discovery of arange of well-preserved ancient birds. Avian Flight offers a novel insight into the interactions between wings and air which challenges established theories relating to the origin of bird flight. Take-off, flapping flight, gliding and landing are the basic ingredients of bird flight, and birds use a variety of flight styles from hovering to soaring. Flight muscles are the engines that generate the force required to keep the wings and tail in the gliding configuration and perform workduring flapping motion. The energy required to fly can be estimated or measured directly, and a comparison of the empirical results provides insights into the trend in metabolic costs of flight of birds varying in shape and mass from hummingbirds to albatrosses. The book will be of interest to biologists, ornithologists, and bird watchers. It will also be of relevance and use to physicists,
mathematicians, and engineers involved with aerodynamics.
eBook
Hawks kettle, puffins wheel and other poems of birds in flight
\"In captivating, lyrical verse, award-winning children's author Susan Vande Griek explores the fascinating movements of twelve birds. Hawks kettle, riding warm air currents like bubbles rising in a pot of boiling water. Puffins wheel, circling over the sea and island colonies. And eagles cartwheel, locking talons high in the air and then tumbling toward earth. Alongside each poem is an informational sidebar explaining why the bird moves in its own special way. Artwork by Mark Hoffmann captures the birds' lively movements. The result is a delightful celebration of these magnificent creatures.\"-- Provided by publisher.
Book
Nature. Season 42, episode 6, Flyways
More than 200 species of shorebirds, such as Far Eastern Curlews, Red Knots and Hudsonian Godwits, fly thousands of miles each year from feeding grounds in the Southern Hemisphere to breeding grounds in the Arctic and back again. But their populations are crashing amidst climate change and urban development. Follow scientists as they mobilize to the challenge of saving these shorebirds.
Streaming Video
North, south, east, west
Follows the journey of a little bird who flies to the north, south, east, and west to decide which direction she likes best.
Book
The inner bird : anatomy and evolution
Birds are among the most successful vertebrates on Earth.An important part of our natural environment and deeply embedded in our culture, birds are studied by more professional ornithologists and enjoyed by more amateur enthusiasts than ever before.
eBook
Dream team!
\"Boys and girls will love this exciting full-color storybook featuring Swift, Penny, Rod, and Brody, the high-flying cadets from Nickelodeon's Top Wing! In this high-flying adventure, the cadets must work together to earn their copilot badges\"--Amazon.com.
Book
The rise of birds : 225 million years of evolution
The most comprehensive account of the origin of ancient and modern birds—the \"living dinosaurs.\"
A small set of fossilized bones discovered almost thirty years ago led paleontologist Sankar Chatterjee on a lifelong quest to understand their place in our understanding of the history of life. They were clearly the bones of something unusual, a bird-like creature that lived long, long ago in the age of dinosaurs. He called it Protoavis, and the animal that owned these bones quickly became a contender for the title of \"oldest known bird.\" In 1997, Chatterjee published his findings in the first edition of The Rise of Birds.
Since then Chatterjee and his colleagues have searched the world for more transitional bird fossils. And they have found them. This second edition of The Rise of Birds brings together a treasure trove of fossils that tell us far more about the evolution of birds than we once dreamed possible.
With no blind allegiance to what he once thought he knew, Chatterjee devours the new evidence and lays out the most compelling version of the birth and evolution of the avian form ever attempted. He takes us from Texas to Spain, China, Mongolia, Madagascar, Australia, Antarctica, and Argentina. He shows how, in the \"Cretaceous Pompeii\" of China, he was able to reconstruct the origin and evolution of flight of early birds from the feathered dinosaurs that lay among thousands of other amazing fossils.
Chatterjee takes us to where long-hidden bird fossils dwell. His compelling, occasionally controversial, revelations—accompanied by spectacular illustrations—are a must-read for anyone with a serious interest in the evolution of \"the feathered dinosaurs, \" from vertebrate paleontologists and ornithologists to naturalists and birders.
eBook
Why Don't Jumbo Jets Flap Their Wings?
What do a bumble bee and a 747 jet have in common? It's not a trick question. The fact is they have quite a lot in common. They both have wings. They both fly. And they're both ideally suited to it. They just do it differently.Why Don't Jumbo Jets Flap Their Wings? offers a fascinating explanation of how nature and human engineers each arrived at powered flight. What emerges is a highly readable account of two very different approaches to solving the same fundamental problems of moving through the air, including lift, thrust, turning, and landing. The book traces the slow and deliberate evolutionary process of animal flight-in birds, bats, and insects-over millions of years and compares it to the directed efforts of human beings to create the aircraft over the course of a single century.Among the many questions the book answers:Why are wings necessary for flight?How do different wings fly differently?When did flight evolve in animals?What vision, knowledge, and technology was needed before humans could learn to fly?Why are animals and aircrafts perfectly suited to the kind of flying they do?David E. Alexander first describes the basic properties of wings before launching into the diverse challenges of flight and the concepts of flight aerodynamics and control to present an integrated view that shows both why birds have historically had little influence on aeronautical engineering and exciting new areas of technology where engineers are successfully borrowing ideas from animals.
eBook