Resultados para "América" en Ciencia e ingeniería

In Pittsburgh, the elevation varies wildly, fluctuating 660 feet from highest to lowest points throughout the area and making it one of the hilliest cities in the United States. Throughout this unruly and physically challenging landscape, the city's first mass transportation system was built—a steadily expanding network of public stairways, locally referred to as city steps, these flights of stairs are a throwback to a very different time in history and a very different Pittsburgh.

This volume, aimed at the general audience, presents life and times of the amazing animals that inhabited Earth more than 500 million years ago. The Cambrian Period was a critical time in Earth's history. During this immense span of time nearly every modern group of animals appeared. Although life had been around for more than 2 million millennia, Cambrian rocks preserve the record of the first appearance of complex animals with eyes, protective skeletons, antennae, and complex ecologies.

Human history has seen many surprising and profound turning points. The ways that humans learned to use raw materials to create activity and resources set the stage for the most compelling and life-altering phase of the modern era, the Industrial Revolution. Born during this time on different continents but connected by similar interests, two men indelibly marked their generation and those that followed with their genius and foresight. This audiobook covers the war of currents and the individual lives of Tesla and Edison.

John Roebling was one of the 19th century's most brilliant engineers, ingenious inventors, successful manufacturers, and fascinating personalities. Raised in a German backwater amid the war-torn chaos of the Napoleonic Wars, he immigrated to the US in 1831, where he became wealthy and acclaimed, eventually receiving a carte-blanche contract to build one of the 19th century's most stupendous and daring works of engineering: a gigantic suspension bridge to span the East River between New York and Brooklyn.

In 2013 Michael J. Yochim was diagnosed with ALS (Lou Gehrig's disease). While fighting the disease, he wrote Requiem for America's Best Idea. The book establishes a unique parallel between Yochim's personal struggle with a terminal illness and the impact climate change is having on the national parks—the treasured wilderness that he loved and to which he dedicated his life. A poignant and thought-provoking work, Requiem for America's Best Idea investigates the interactions between people and nature and the world that can inspire and destroy them.

Coyote America is both an environmental and a deep natural history of the coyote. It traces both the five-million-year-long biological story of an animal that has become the "wolf" in our backyards and its cultural evolution from a preeminent spot in Native American religions to the hapless foil of the Road Runner. A deeply American tale, the story of the coyote in the American West and beyond is a sort of Manifest Destiny in reverse.

Here's a biographical profile of the Duesenberg brothers, Augie and Fred, who built some of America's most famous cars, cars that today sell for millions at auctions. Jay Leno, owner of an extensive classic car collection, calls the Duesenberg SJ his favorite car. He feels it is "probably the greatest American car" ever built. The Duesenberg name evokes images of a European heritage, an automobile built in the image and traditions of iconic stalwarts such as Mercedes, Benz, Bugatti and Ferrari.

Since the 1987 publication of Diet for a New America, beef consumption in the United States has fallen a remarkable 19 percent. While many forces are contributing to this dramatic shift in our habits, Diet for a New America is considered to be one of the most important. Diet for a New America is a startling examination of the food we currently buy and eat in the United States and the astounding moral, economic, and emotional price we pay for it.

Here's a biographical profile of Charles and J. Frank Duryea, two visionaries who were among the first to recognize the potential of the automobile. In 1892 they built America's first gasoline-powered car and had it running successfully the following year.

The great economic boom times in American history have come because of fortuitous discoveries. Natural resources (coal first, then oil) fueled vast economic and industrial expansions, which helped create and supply new markets. The last genuine economic game changer was the technology boom of the 1990s, which gave the U.S. a global competitive advantage based on electronics and silicon. In defiance of the recessionary times (in 1990), he saw the coming boom. Now, in 2013, he sees the threshold of another.

For those who have a disdain for birds or bird lovers with a sense of humor, this snarky handbook is equal parts profane, funny, and—let's face it—true. Featuring common North American birds, such as the White-Breasted Butt Nugget and the Goddamned Canada Goose (or White-Breasted Nuthatch and Canada Goose for the layperson), Matt Kracht identifies all the idiots in your backyard and details exactly why they suck. With The Field Guide to Dumb Birds of North America, you won't need to wonder what all that racket is anymore!

North America was not empty nor were its inhabitants savages when Europeans arrived in 1492. Quite the opposite, North America was thickly populated by indigenous people who lived in clean cities, had a thriving economy, and transformed the landscape into bountiful productivity. Forgotten Landscapes reveals the incredible extent to which Native Americans manipulated and shaped their surrounding environs through agricultural practices and urban engineering, resulting in one of the most prosperous civilizations of their time.

A groundbreaking study that radically alters our understanding of the Americas before the arrival of the Europeans in 1492. Traditionally, Americans learned in school that the ancestors of the people who inhabited the Western Hemisphere at the time of Columbus’s landing had crossed the Bering...

Erik Larson dépeint une nouvelle tragédie américaine, s’intéressant cette fois à la folie des hommes qui pensent pouvoir maîtriser les lois de la nature, et au combat héroïque d’Isaac Cline, coupable d’une erreur fatale qu’il paiera au prix fort.

When Dr. David Hosack tilled the country's first botanical garden in the Manhattan soil more than 200 years ago, he didn't just dramatically alter the New York landscape; he left a monumental legacy of advocacy for public health and wide-ranging support for the sciences. In melodic prose, historian Victoria Johnson eloquently chronicles Hosack's tireless career to reveal the breadth of his impact. The result is a lush portrait of the man who gave voice to a new, deeply American understanding of the powers and perils of nature.

From the Arctic Circle to Costa Rica, from Maine to the tip of Baja, California, the coyote thrives like no other animal in North America. It roams the Canadian wilderness and prowls the Arizona deserts and beyond. Over time this highly intelligent animal has learned to adapt to big cities, such as Los Angeles. It has even been sighted in Bronx, New York. But the coyote is not always welcome.

In the early 1900s, many Americans actually believed we had discovered intelligent life on Mars, as bestselling science writer David Baron chronicles in The Martians, his truly bizarre tale of a nation swept up in Mars mania. At the center of Baron's historical drama is Percival Lowell, the Boston Brahmin and Harvard scion, who observed "canals" etched into the surface of Mars. Lowell devised a grand theory that the red planet was home to a utopian society that had built gargantuan ditches to funnel precious meltwater from the polar icecaps to desert farms and oasis cities.

Oliver Sacks is well known as an explorer of the human mind - a neurologist with a gift for complex, insightful portrayals of people and their conditions. However, he is also a card-carrying member of the American Fern Society, and since childhood has been fascinated by these primitive plants and their ability to survive and adapt in many climates. Oaxaca Journal is Sacks' spellbinding account of his trip with a group of fellow fern enthusiasts to the beautiful, history-steeped province of Oaxaca, Mexico.

In this fresh and powerful work of environmental history, Martin Doyle explores how rivers have often been the source of arguments at the heart of the American experiment - over federalism, taxation, regulation, conservation, and development. Doyle tells the epic story of America and its rivers, from the US Constitution's roots in interstate river navigation, the origins of the Army Corps of Engineers, the discovery of gold in 1848, and the construction of the Hoover Dam and the TVA during the New Deal, to the failure of the levees in Hurricane Katrina.

Here is the epic history of the "iron men in wooden boats" who built an industrial empire through the pursuit of whales. This absorbing history demonstrates that few things can capture the sheer danger and desperation of men on the deep sea as dramatically as whaling. This sweeping social and economic history provides rich and often fantastic accounts of the men themselves, who mutinied, murdered, rioted, deserted, drank, scrimshawed, and recorded their experiences in journals and memoirs.