The Bird, Its Form and Function PDF Download

Author: James R. Hansen
Publisher: Texas A&M University Press
ISBN: 9781585442430
Category : Biography & Autobiography
Languages : en
Pages : 292

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Book Description
The airplane ranks as one of history's most ingenious and phenomenal inventions--and surely one of the most world-shaking. How ideas about its aerodynamics first came together and how the science and technology evolved to forge the airplane into the revolutionary machine it became is the epic story James R. Hansen tells in The Bird Is on the Wing. Just as the airplane is a defining technology of the twentieth century, aerodynamics has been the defining element of the airplane. Hansen provides an engaging, easily understandable introduction to the role of aerodynamics in the design of such historic American aircraft as the DC-3, X-1, and 747. Recognizing the impact individuals have had on the development of the field, he conveys not only a history of aircraft technology, but also a collective biography of the scientists, engineers, and designers who created the airplanes. From da Vinci, whose understanding of what it took to fly was three centuries too early for practical use, to the invention of the airplane by the Wright brothers, Hansen explores the technological matrix from which aeronautical engineering emerged. He skillfully guides the reader through the development of such critical aerodynamic concepts as streamlining, flutter, laminar-flow airfoils, the mythical "sound barrier," variable-sweep wing, supersonic cruise, blended body, and much more. Hansen's explanation of how vocabulary and specifications were developed to fill the gap between the perceptions of pilots and the system of engineers will fascinate all those interested in how human beings have used aerodynamics to move among, and even beyond, birds on the wing.

Author: Scott Weidensaul
Publisher: W. W. Norton & Company
ISBN: 0393608913
Category : Nature
Languages : en
Pages : 383

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Book Description
New York Times Bestseller Finalist for the Los Angeles Times Book Prize A Library Journal Best Science and Technology Book of the Year An exhilarating exploration of the science and wonder of global bird migration. In the past two decades, our understanding of the navigational and physiological feats that enable birds to cross immense oceans, fly above the highest mountains, or remain in unbroken flight for months at a stretch has exploded. What we’ve learned of these key migrations—how billions of birds circumnavigate the globe, flying tens of thousands of miles between hemispheres on an annual basis—is nothing short of extraordinary. Bird migration entails almost unfathomable endurance, like a sparrow-sized sandpiper that will fly nonstop from Canada to Venezuela—the equivalent of running 126 consecutive marathons without food, water, or rest—avoiding dehydration by "drinking" moisture from its own muscles and organs, while orienting itself using the earth’s magnetic field through a form of quantum entanglement that made Einstein queasy. Crossing the Pacific Ocean in nine days of nonstop flight, as some birds do, leaves little time for sleep, but migrants can put half their brains to sleep for a few seconds at a time, alternating sides—and their reaction time actually improves. These and other revelations convey both the wonder of bird migration and its global sweep, from the mudflats of the Yellow Sea in China to the remote mountains of northeastern India to the dusty hills of southern Cyprus. This breathtaking work of nature writing from Pulitzer Prize finalist Scott Weidensaul also introduces readers to those scientists, researchers, and bird lovers trying to preserve global migratory patterns in the face of climate change and other environmental challenges. Drawing on his own extensive fieldwork, in A World on the Wing Weidensaul unveils with dazzling prose the miracle of nature taking place over our heads.

Author: Osho
Publisher: Osho Media International
ISBN: 9780983640080
Category : Body, Mind & Spirit
Languages : en
Pages : 247

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Book Description
This book is about the inner search and personal transformation, sharing insights that address our deepest question of life, introducing 11 teaching stories from different Zen masters. At the conclusion of each talk, Osho responds to questions from his international audience, providing direct guidance on matters of love, understanding, and ?the search.” The body and the soul are discussed as the two aspects of importance. Our bodies can be used to reach to the stars, but they must have strong roots here on Earth first. Osho highlights how one's life can be transformed through integrating meditation into daily life. He also bypasses the rational mind and speaks directly to the heart. The Zen stories Osho uses illustrate the mysterious yet simple world of Zen, where any situation can be used to become more aware, more conscious, more alive.

Author: Rafe Martin
Publisher: Arthur a Levine
ISBN: 9780439211673
Category : Juvenile Fiction
Languages : en
Pages : 359

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Book Description
Prince Ardwin, known as Birdwing, the youngest of six brothers turned into swans by their stepmother, is unable to complete the transformation back into human form, so he undertakes a journey to discover whether his feathered arm will be a curse or a blessing to him.

Author: Brutus Östling
Publisher:
ISBN: 9780007240470
Category : Birds
Languages : en
Pages : 0

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A visual guide to how birds have become the masters of the air

Author: William Beebe
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 530

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Author: David E. Alexander
Publisher: Oxford University Press
ISBN: 0199996784
Category : Science
Languages : en
Pages : 225

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Book Description
Ask anybody what superpower they wished to possess and odds are the answer just might be "the ability to fly." What is it about soaring through the air held up by the power of one's own body that has captivated humans for so long? David Alexander examines the evolution of flight in the only four animals to have evolved this ability: insects, pterosaurs, birds, and bats. With an accessible writing style grounded in rigorous research, Alexander breaks new ground in a field that has previously been confined to specialists. While birds have received the majority of attention from flight researchers, Alexander pays equal attention to all four groups of flyers-something that no other book on the subject has done before now. In a streamlined and captivating way, David Alexander demonstrates the links between the tiny 2-mm thrip and the enormous albatross with the 12 feet wingspan used to cross oceans. The book delves into the fossil record of flyers enough to satisfy the budding paleontologist, while also pleasing ornithologists and entomologists alike with its treatment of animal behavior, flapping mechanisms, and wing-origin theory. Alexander uses relatable examples to draw in readers even without a natural interest in birds, bees, and bats. He takes something that is so off-limits and unfamiliar to humans-the act of flying-and puts it in the context of experiences that many readers can relate to. Alexander guides readers through the anomalies of the flying world: hovering hummingbirds, unexpected gliders (squirrels, for instance), and the flyers that went extinct (pterosaurs). Alexander also delves into wing-origin theory and explores whether birds entered the skies from the trees down (as gliders) or from the ground up (as runners) and uses the latest fossil evidence to present readers with an answer.

Author: Nicolae Sfetcu
Publisher: MultiMedia Publishing
ISBN:
Category : Pets
Languages : en
Pages : 1478

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Book Description
Birds are among the most extensively studied of all animal groups. Hundreds of academic journals and thousands of scientists are devoted to bird research, while amateur enthusiasts (called birdwatchers or, more commonly, birders) probably number in the millions. Birds are categorised as a biological class, Aves. The earliest known species of this class is Archaeopteryx lithographica, from the Late Jurassic period. According to the most recent consensus, Aves and a sister group, the order Crocodilia, together form a group of unnamed rank, the Archosauria. Phylogenetically, Aves is usually defined as all descendants of the most recent common ancestor of modern birds (or of a specific modern bird species like Passer domesticus), and Archaeopteryx. Modern phylogenies place birds in the dinosaur clade Theropoda. Modern birds are divided into two superorders, the Paleognathae (mostly flightless birds like ostriches), and the wildly diverse Neognathae, containing all other birds.

Author: David Michael Bird
Publisher: Firefly Books
ISBN: 9781552979259
Category : Nature
Languages : en
Pages : 476

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Book Description
Observing birds often raises many intriguing questions. Such as what is the incubation time for those robin eggs sitting in the nest above the porch light? What kinds of flowers attract humming birds? What are the migratory distances of various species? What are the major causes of bird deaths? The Bird Almanac is an invaluable resource, impressive in scope and depth and complemented with tables and illustrations. This Second Edition has been reformatted for easier use and now features quick-find tabs and an index. The first section of the book comprehensively covers the history, biology and behavior of birds. Bird physiology, biological systems and anatomy are explained in easy-to-understand terms and annotated illustrations. Other topics include: Fossil history of birds Reproduction and mortality Threatened and endangered species Major birding festivals and competitions How to attract specific species to the backyard Extensive resources for bird-lovers including the top birding locations in America Birding code of ethics The second section consists of an authoritative world checklist of bird species. The birds are organized by taxonomic order and listed by common and Latin name. The valuable information in The Bird Almanac fills in the gaps in knowledge of even the most seasoned birder.

Author: DK
Publisher: Penguin
ISBN: 0744085888
Category : Nature
Languages : en
Pages : 402

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Book Description
Ideal for Canadian birdwatchers and bird lovers of every age! Each of these regional field guides are filled with page after page of magnificent close-up photographs and helpful full-page profiles of hundreds of commonly seen species. With an East / West division made at the 100th meridian (approximately Winnipeg) these handy books offer scientifically accurate and readable accounts of notable characteristics and information everything from behavior and habitat to nest construction and conservation status. Each profile also features diagrams of flight patterns and statistics of size, wingspan and lifespan. These invaluable reference guides are both detailed and accessible, with a user-friendly format that will make it easy for birders to enjoy either studying one species account at a time or browsing to make cross comparisons. + Features over 350 full-colour photographs + Each page includes a notes section for recording bird-watching activities + Both titles include rare birds About the Editor - David M. Bird is Emeritus Professor of Wildlife Biology and former Director of the Avian Science and Conservation Centre at McGill University. As a past president of the Society of Canadian Ornithologists, a director with Bird Studies Canada, and a Fellow of the American Ornithologists' Union, he has received several awards for his conservation and education efforts. Dr. Bird is a regular columnist for both Bird Watcher's Digest and Canadian Wildlife and is the author of several books and over 200 scientific publications. He is the consultant editor for DK's Birds of Canada, Birds of Eastern Canada, Birds of Western Canada, and Pocket Birds of Canada. Visit his website at www.askprofessorbird.com.