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.

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.

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.

A landmark collection: the first anthology of short fiction by Afghan women that are "powerful, profound, and deeply moving" (Elif Shafak, author of The Island of Missing Trees, a Reese's Book Club pick) "My pen is the wing of a bird; it will tell you those thoughts we are not allowed to think, those dreams we are not allowed to dream." Eighteen Afghan women living in, speaking about, and writing from the country itself tell stories that are powerful and illuminating, unique and universal - stories of family, work, childhood, friendship, war, gender identity, and cultural traditions. A woman's fortitude saves her village from disaster. A teenager explores their identity in a moment of quiet. A tormented girl tries to find love through a horrific act. A headmaster makes his way to work, treading the fine line between life and death. These and more original, vital, and unexpected stories hail from extraordinary voices rooted in Afghanistan's two main linguistic groups (Pashto and Dari), and were developed over two years through the writer development program Untold's Write Aghanistan Project. My Pen Is the Wing of a Bird comes at a pivotal moment in Afghanistan's history, when these voices must be heard. With an Introduction by Lyse Doucet, BBC chief international correspondant, and afterword by Lucy Hannah, Founder and Director of Untold

"On the Wing is the first book to take a comprehensive look at the evolution of flight in all four groups of powered flyers: insects, pterosaurs, birds, and bats."--Book jacket.

Birds Without Wings traces the fortunes of one small community in southwest Turkey (Anatolia) in the early part of the last century—a quirky community in which Christian and Muslim lives and traditions have co-existed peacefully over the centuries and where friendship, even love, has transcended religious differences. But with the disintegration of the Ottoman Empire and the onset of the Great War, the sweep of history has a cataclysmic effect on this peaceful place: The great love of Philothei, a Christian girl of legendary beauty, and Ibrahim, a Muslim shepherd who courts her from near infancy, culminates in tragedy and madness; Two inseparable childhood friends who grow up playing in the hills above the town suddenly find themselves on opposite sides of the bloody struggle; and Rustem Bey, a wealthy landlord, who has an enchanting mistress who is not what she seems. Far away from these small lives, a man of destiny who will come to be known as Mustafa Kemal Atatürk is emerging to create a country from the ruins of an empire. Victory at Gallipoli fails to save the Ottomans from ultimate defeat and, as a new conflict arises, Muslims and Christians struggle to survive, let alone understand, their part in the great tragedy that will reshape the whole region forever.

Explore a variety of birds in this illustrated educational introduction to birds.