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Author: Chen-Pang Yeang
Publisher: University of Chicago Press
ISBN: 022603481X
Category : Science
Languages : en
Pages : 378
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Book Description
By the late nineteenth century, engineers and experimental scientists generally knew how radio waves behaved, and by 1901 scientists were able to manipulate them to transmit messages across long distances. What no one could understand, however, was why radio waves followed the curvature of the Earth. Theorists puzzled over this for nearly twenty years before physicists confirmed the zig-zag theory, a solution that led to the discovery of a layer in the Earth’s upper atmosphere that bounces radio waves earthward—the ionosphere. In Probing the Sky with Radio Waves, Chen-Pang Yeang documents this monumental discovery and the advances in radio ionospheric propagation research that occurred in its aftermath. Yeang illustrates how the discovery of the ionosphere transformed atmospheric science from what had been primarily an observational endeavor into an experimental science. It also gave researchers a host of new theories, experiments, and instruments with which to better understand the atmosphere’s constitution, the origin of atmospheric electricity, and how the sun and geomagnetism shape the Earth’s atmosphere. This book will be warmly welcomed by scholars of astronomy, atmospheric science, geoscience, military and institutional history, and the history and philosophy of science and technology, as well as by radio amateurs and electrical engineers interested in historical perspectives on their craft.
Author: Chen-Pang Yeang
Publisher: University of Chicago Press
ISBN: 022603481X
Category : Science
Languages : en
Pages : 378
Get Book Here
Book Description
By the late nineteenth century, engineers and experimental scientists generally knew how radio waves behaved, and by 1901 scientists were able to manipulate them to transmit messages across long distances. What no one could understand, however, was why radio waves followed the curvature of the Earth. Theorists puzzled over this for nearly twenty years before physicists confirmed the zig-zag theory, a solution that led to the discovery of a layer in the Earth’s upper atmosphere that bounces radio waves earthward—the ionosphere. In Probing the Sky with Radio Waves, Chen-Pang Yeang documents this monumental discovery and the advances in radio ionospheric propagation research that occurred in its aftermath. Yeang illustrates how the discovery of the ionosphere transformed atmospheric science from what had been primarily an observational endeavor into an experimental science. It also gave researchers a host of new theories, experiments, and instruments with which to better understand the atmosphere’s constitution, the origin of atmospheric electricity, and how the sun and geomagnetism shape the Earth’s atmosphere. This book will be warmly welcomed by scholars of astronomy, atmospheric science, geoscience, military and institutional history, and the history and philosophy of science and technology, as well as by radio amateurs and electrical engineers interested in historical perspectives on their craft.
Author: Curtis Peebles
Publisher:
ISBN: 9781626830219
Category : Research aircraft
Languages : en
Pages : 334
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Book Description
With the development of supersonic aircraft, the X-plane era ushered in a new and challenging phase of flight. Researchers found that much of the knowledge accumulated from the previous, subsonic flight era did not apply to the emerging supersonic aircraft. These turbojet-powered planes also outpaced the usefulness of the wind tunnel, previously an indispensible tool of aeronautic research.This book explores the development of the X-series research aircraft, the planes that helped bridge the gap between subsonic flight and hypersonic flight.
Author: Arthur Holland Michel
Publisher: HarperCollins
ISBN: 0544971663
Category : Technology & Engineering
Languages : en
Pages : 341
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Book Description
The fascinating history and unnerving future of high-tech aerial surveillance, from its secret military origins to its growing use on American citizens Eyes in the Sky is the authoritative account of how the Pentagon secretly developed a godlike surveillance system for monitoring America's enemies overseas, and how it is now being used to watch us in our own backyards. Whereas a regular aerial camera can only capture a small patch of ground at any given time, this system—and its most powerful iteration, Gorgon Stare—allow operators to track thousands of moving targets at once, both forwards and backwards in time, across whole city-sized areas. When fused with big-data analysis techniques, this network can be used to watch everything simultaneously, and perhaps even predict attacks before they happen. In battle, Gorgon Stare and other systems like it have saved countless lives, but when this technology is deployed over American cities—as it already has been, extensively and largely in secret—it has the potential to become the most nightmarishly powerful visual surveillance system ever built. While it may well solve serious crimes and even help ease the traffic along your morning commute, it could also enable far more sinister and dangerous intrusions into our lives. This is closed-circuit television on steroids. Facebook in the heavens. Drawing on extensive access within the Pentagon and in the companies and government labs that developed these devices, Eyes in the Sky reveals how a top-secret team of mad scientists brought Gorgon Stare into existence, how it has come to pose an unprecedented threat to our privacy and freedom, and how we might still capitalize on its great promise while avoiding its many perils.
Author: Johnny Acton
Publisher:
ISBN: 9780340819326
Category : Ballooning
Languages : en
Pages : 240
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Book Description
When Joe Kittinger finally came to a halt, he found himself in a paradoxical world of preternatural colour where the sun blazed from a sky as black as pitch. A few minutes on the very border of space were enough to persuade him to throw himself form his open gondola with relish.
Author: Lauren Gunderson
Publisher: Dramatists Play Service, Inc.
ISBN: 0822233800
Category : Drama
Languages : en
Pages : 65
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Book Description
THE STORY: When Henrietta Leavitt begins work at the Harvard Observatory in the early 1900s, she isn’t allowed to touch a telescope or express an original idea. Instead, she joins a group of women “computers,” charting the stars for a renowned astronomer who calculates projects in “girl hours” and has no time for the women’s probing theories. As Henrietta, in her free time, attempts to measure the light and distance of stars, she must also take measure of her life on Earth, trying to balance her dedication to science with family obligations and the possibility of love. The true story of 19th-century astronomer Henrietta Leavitt explores a woman’s place in society during a time of immense scientific discoveries, when women’s ideas were dismissed until men claimed credit for them. Social progress, like scientific progress, can be hard to see when one is trapped among earthly complications; Henrietta Leavitt and her female peers believe in both, and their dedication changed the way we understand both the heavens and Earth.
Author: Rodman Philbrick
Publisher: Scholastic Inc.
ISBN: 0545303877
Category : Juvenile Fiction
Languages : en
Pages : 228
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Book Description
This fast-paced action novel is set in a future where the world has been almost destroyed. Like the award-winning novel Freak the Mighty, this is Philbrick at his very best.It's the story of an epileptic teenager nicknamed Spaz, who begins the heroic fight to bring human intelligence back to the planet. In a world where most people are plugged into brain-drain entertainment systems, Spaz is the rare human being who can see life as it really is. When he meets an old man called Ryter, he begins to learn about Earth and its past. With Ryter as his companion, Spaz sets off an unlikely quest to save his dying sister -- and in the process, perhaps the world.
Author: George Webster
Publisher: Stackpole Books
ISBN: 0811741427
Category : History
Languages : en
Pages : 312
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Book Description
Gives the reader a firsthand look at war from inside a B-17 bomber in World War II. Focuses on the 92nd Bomb Group, 8th Air Force and includes missions to the Schweinfurt ball-bearing plant and Berlin. One of the first accounts of being shot down over Sweden.
Author: Mark Charlton-Kings
Publisher: Lulu.com
ISBN: 1326742744
Category : Fiction
Languages : en
Pages : 398
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Book Description
This is the second book in the Dalton Family Trilogy, set in the Second World War. Adam and Juliette Dalton who own the old Somerville Estate (Revenge is Wild Justice - the first book)have become wealthy. Phil, their son joins the RAF as a Mosquito pilot while their daughter Jennifer is trained as an SIS intelligence agent sent to France. A serial killer has abused and murdered several young women near RAF stations, but the police fail to track him down. The Daltons and other RAF airmen take over the investigation. To protect children from the Blitz London school children are evacuated to safety in the country. The Porter family is sent to the Cotswolds where Derek (Del Boy)is billeted with the Daltons. There is a battle of wills between the 'giant' Adam and the 'Artful Dodger' Del Boy. Several threads of the story involving the main characters interweave against an accurate historical background, finally coming together. This crime thriller involves romance, hatred, murder, revenge and aviation.
Author: Gordon Thomas
Publisher: Open Road Media
ISBN: 1497663458
Category : Fiction
Languages : en
Pages : 391
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Book Description
The New York Times–bestselling author brings back intelligence agent David Morton who must stop the deployment of a diabolical new weapon. After witnessing extensive air pollution in major US cities, a rogue Russian scientist knows there must be a way to exploit that weakness—and he’s come up with a bomb that does just that. But as the American president unveils a new initiative to radically change global environmental policies, he has his own deadly weapon at his side: intelligence operative David Morton . . . “Morton is smarter than Bond.” —Daily Mail
Author: Anthony Aveni
Publisher: Thames and Hudson
ISBN:
Category : History
Languages : en
Pages : 260
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Book Description
"Anthony Aveni reveals how !Kung and Mursi hunter-gatherers depended on signals in the sky for their survival and sustenance; how Polynesian sailors navigated a seemingly limitless watery world by star bearings; how social cohesion in cultures as diverse as the Pawnee and the Inca was mirrored in celestial imagery; and how the cosmic connection between the arrangement of Chinese and Aztec cities and the constellations served as an expression of political authority." "For most of human history, people found meaning in the dance of the cosmic denizens. Today, many aspects of this intimate contact between daily life and what happens in the sky have disappeared. Did our ancestors have an understanding of the cosmos that we ourselves lack? How and why did it all happen? These are the questions addressed in this engaging and erudite book."--BOOK JACKET.
