The "story of a woman coming home to the family she left behind--and to the woman she always wanted to be... Georgia Chambers has spent her life sifting through other people's pasts while trying to forget her own. But then her work as an expert on fine china--especially Limoges--requires her to return to the one place she swore she'd never revisit... It has been thirteen years since Georgia left her family home on the coast of Florida..."--
From 1918 to 1929 American aviation progressed through the pioneering era, establishing the pattern of its impact on national security, commerce and industry, communication, travel, geography, and international relations. In America, as well as on a global basis, society experienced a dramatic transformation from a two-dimensional world to a three-dimensional one. By 1929 aviation was poised at the threshold of a new epoch. Covering both military and civil aviation trends, Roger Bilstein's study highlights these developments, explaining how the pattern of aviation activities in the 1920s is reflected through succeeding decades. At the same time, the author discusses the social, economic, and political ramifications of this robust new technology. Aviation histories usually pay little attention to aeronautical images as an aspect of popular culture. Thoughtful observers of the 1920s such as Stuart Chase and Heywood Broun considered aircraft to be an encouraging example of the new technology-workmanlike, efficient, and graceful, perhaps representing a new spirit of international good will. Flight Patterns is particularly useful for its discussion of both economic and cultural factors, treating them as integrated elements of the evolving air age.
How and why birds navigate the skies, travelling from continent to continent xe2x80x94 flying thousands of miles across the earth each autumn and spring xe2x80x94 has continually fascinated the human imagination, but only recently have we been able to fully understand these amazing journeys. How did this revolution come about? Flight Paths is the never-before-told story of how an eccentric group of ornithologists, engineers and other pioneering scientists have harnessed nearly every technological development of the last hundred years to understand bird migration in detail - from where and when they take off, their flight paths and behaviours, their destinations and the challenges they face getting there. In this fascinating and compelling story Rebecca Heisman uncovers the secret history of an ornithological arms race that not only helped solve the mystery of bird migration using radar, radioactive isotopes, satellites and the humble aluminium band but has also given us much needed insight into how best to protect and conserve the bird life we cherish.
Indoor flight with light models offers fascinating possibilities thanks to new micro-components and construction methods. The variety of materials (balsa, polystyrene, boron fibres, Mylar film, etc.) makes possible not only classic indoor flight with rubber propulsion but also electric indoor flight with new components (coreless motors, micro-RC equipment, tiny lithium polymer cells). A section is also devoted specifically to supercapacitor propulsion. The most important feature of all light models with weights of typically 1.5 to 10 grams is the slow flying at walking pace. The risk of damage is correspondingly low. Another advantage of indoor flying is that it can be practised all year round, regardless of the weather. The door is wide open for school projects. The author has held numerous workshops in schools and at the Deutsches Museum, as well as supervising teachers in Saalflug projects. He has also been a participant in numerous international and national competitions. The book helps to overcome the initial threshold of lightweight construction with detailed instructions and construction plans. It accompanies the model flyer, starting with simple models suitable for the beginner or for workshop instruction, up to competition performance models. Let yourself "decelerate" and enjoy the slowly floating flying objects! From the content: • History of Indoor flight • Model classes • Materials • Working techniques • Rubber propulsion • Electric propulsion • CO2 drive • Supercapacitors • Balloon launch • Air wave • Flight practice • Propeller • Entry-level models • Styrofoam models • Construction plans
From the rain forests of Borneo to the tenements of Manhattan, winged insects are a conspicuous and abundant feature of life on earth. Here, Robert Dudley presents the first comprehensive explanation of how insects fly. The author relates the biomechanics of flight to insect ecology and evolution in a major new work of synthesis. The book begins with an overview of insect flight biomechanics. Dudley explains insect morphology, wing motions, aerodynamics, flight energetics, and flight metabolism within a modern phylogenetic setting. Drawing on biomechanical principles, he describes and evaluates flight behavior and the limits to flight performance. The author then takes the next step by developing evolutionary explanations of insect flight. He analyzes the origins of flight in insects, the roles of natural and sexual selection in determining how insects fly, and the relationship between flight and insect size, pollination, predation, dispersal, and migration. Dudley ranges widely--from basic aerodynamics to muscle physiology and swarming behavior--but his focus is the explanation of functional design from evolutionary and ecological perspectives. The importance of flight in the lives of insects has long been recognized but never systematically evaluated. This book addresses that shortcoming. Robert Dudley provides an introduction to insect flight that will be welcomed by students and researchers in biomechanics, entomology, evolution, ecology, and behavior.
Bird flight has always intrigued mankind. This book provides an up to date account of our existing knowledge on the subject, as well as offering new insights and challenging some established views. A brief history of the science of flight introduces the basic physical principles governing aerial locomotion. A treatment of flight-related functional morphology concentrates 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's laws, 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 a range of well-preserved ancient birds. A novel insight into the interactions between wings and air 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 consisting of mosaics of specialised fibres are the engines that generate the force required to keep the wings and tail in the gliding configuration and perform work during 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.
