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A boy visualizes all the incredible things his flying machine will be able to do when he finishes building it in the barn.
Beskriver gennerelle principper for at flyve og fortæller om de første forsøg på at bygge en egentlig flyvemaskine før det lykkedes at gennemføre en bemandet, motordrevet flyvning
A photo essay tracing the history and development of aircraft from hot-air balloons to jetliners. Includes information on the principles of flight and the inner workings of various flying machines.
Let Adam Raccoon and Keng Aren the Lion help your kids learn biblical truth. Children will see themselves in rascally, fun-loving Adam who wants to follow his King, but finds it so easy to stray. The wise King Aren will remind them of Jesus, their King.
The thing about photography is that, sometimes, it captures an accidental reality that was never the intention of the photographer. The grinning idiot in the background, the unfortunate reflection in a mirror. But what do you do when an old photograph shows something in the background that challenges an accepted truth about history? Fate drops just such a photograph into the lap of a man who already owns another piece of the same jigsaw. Drawn by an increasing obsession to solve the mystery of the old photograph, he unwittingly uncovers a different kind of truth. A truth about what it really means to live in a free democracy, and which has been active for a hundred and fifty years: a truth that deals in state-sponsored intimidation, blackmail and murder.
This acclaimed book on the Wright Brothers takes the reader straight to the heart of their remarkable achievement, focusing on the technology and offering a clear, concise chronicle of precisely what they accomplished and how they did it. This book deals with the process of the invention of the airplane and how the brothers identified and resolved a range of technical puzzles that others had attempted to solve for a century. Step by step, the book details the path of invention (including the important wind tunnel experiments of 1901) which culminated in the momentous flight at Kitty Hawk in 1903, the first major milestone in aviation history. Enhanced by original photos, designs, drawings, notebooks, letters and diaries of the Wright Brothers, Visions of a Flying Machine is a fascinating book that will be of interest to engineers, historians, enthusiasts, or anyone interested in the process of invention.
Calling all future Amelia Earharts and Chuck Yeagers—there's more than one way to get off the ground. Author and physics teacher Bobby Mercer will show readers 35 easy-to-build and fun-to-fly contraptions that can be used indoors or out. Better still, each of these rockets, gliders, boomerangs, launchers, and helicopters are constructed for little or no cost using recycled materials. The Flying Machine Book will show readers how to turn rubber bands, paper clips, straws, plastic bottles, and index cards into amazing, gravity-defying flyers. Learn how to turn a drinking straw, rubber band, and index card into a Straw Rocket, or convert a paper towel tube into a Grape Bazooka. Empty water bottles can be transformed into Plastic Zippers and Bottle Rockets, and ordinary paper can be cut and folded to make a Fingerrangs—a small boomerang—or a Maple Key Helicopter. Each project contains a material list and detailed step-by-step instructions with photos. Mercer also includes explanations of the science behind each flyer, including concepts such as lift, thrust, and drag, the Bernoulli effect, and more. Readers can use this information to modify and improve their flyers, or explain to their teachers why throwing a paper airplane is a mini science lesson. Bobby Mercer has been sharing the fun of free flight for over two decades as a high school physics teacher. He is the author of several books and lives with his family outside of Asheville, North Carolina.
This book clearly demonstrates the problems encountered by the personalities involved and their strengths in developing the helicopter for Coast Guard use. It shows how Erickson and his friend and mentor, Coast Guard captain William Kossler, undaunted by their lack of support, fought with single-minded intensity to establish the helicopter as a vital rescue tool in the service. Kossler died while the project was still in its infancy.
Painter, architect, scientist, inventor—Leonardo da Vinci ranks as history's consummate innovator. Consumed with a boundless desire for knowledge, he investigated technical challenges that were hundreds of years ahead of his time. The power of flight was a particular source of fascination for him, and his close studies of bird anatomy and movement informed his development of the ornithopter — a winged, human-powered aircraft. With Leonardo's da Vinci's Flying Machine, you can create a fully working model of the inventor's amazing creation. This self-contained model kit features a 48-page book with details from Leonardo's notebooks plus full-color, easily joined components. Once assembled, the wings flap by turning a crank. Like the prototype, your model won't actually fly, but you'll have an amazing replica of one of the Renaissance genius's most famous futuristic inventions.