Resultados para "Estados Des Unidos de America" en Ciencia e ingeniería

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.

Edison and Tesla were arch-enemies with competing visions as to how to electrically empower America. Their hostility played out in the infamous War of the Currents. Radio, television, robots, electric cars, self-driving cars, solar heating, the internet, and the cellphone were on the mind of one or the other of these geniuses. Which one ultimately proved to have the more accurate and enduring vision for the world? Who is in the news today and why? Come and find out the answers.

More than 50 years ago, John Coltrane drew the 12 musical notes in a circle and connected them with straight lines, forming a five-pointed star. Inspired by Einstein, Coltrane had put physics and geometry at the core of his music. Physicist and jazz musician Stephon Alexander returns the favor, using jazz to answer physics' most vexing questions about the past and future of the universe.

The author was drawn into the United States Army through ROTC, and he went through training to fly helicopters in combat over Vietnam. His experiences are notable because he flew both Huey “Slicks” and Huey “Gunships”: the former on defense as he flew troops into battle, and the latter on offense as he took the battle to the enemy. Through this book, the author relives his experiences flying and fighting, with special attention given to his and other pilots’ day-to-day lives.

In this intimate portrait of an island lobstering community and an eccentric band of renegade biologists, journalist Trevor Corson escorts the listener onto the slippery decks of fishing boats, through danger-filled scuba dives, and deep into the churning currents of the Gulf of Maine to learn about the secret undersea lives of lobsters.

En 1776, les 13 colonies anglaises qui deviendront les 13 premiers États des États-Unis d'Amérique déclaraient leur indépendance, mais l'Angleterre, pour des raisons politiques et économiques, ne leur a octroyé cette indépendance qu'en 1783 après une guerre qui aura duré sept ans.

For two years, Scots-born John Muir lived in a small cabin along the Yosemite creek, observing the valley's natural beauty and reading Emerson under the stars. The experience forged a lifelong affinity with the site, which would result in its establishment as a national park in 1890. Originally written as a guidebook to the park, The Yosemite describes every aspect of wildlife and landscape that one might encounter there.

"In mid-July of 1879, John Muir sailed for the first time through the sheer-walled fjords of Alaska's Inside Passage. 'Never before this,' he wrote, 'had I been embosomed in scenery so hopelessly beyond description.' During the previous 15 years, Muir had vanished into the north woods of Canada, walked a thousand miles from Kentucky to the Gulf of Mexico, and nested himself in the granite heart of California's Sierra Nevada mountains. Wild nature burned with volcanic intensity in the core of John Muir's soul."

Unsettling Canada, a Canadian best seller, is built on a unique collaboration between two First Nations leaders, Arthur Manuel and Grand Chief Ron Derrickson.Both men have served as chiefs of their bands in the B.C. interior and both have gone on to establish important national and international reputations. But the differences between them are in many ways even more interesting. Arthur Manuel is one of the most forceful advocates for Aboriginal title and rights in Canada and comes from the activist wing of the movement.

Van Life is a lifestyle associated with freedom. With four wheels on the road at all times, you can go anywhere and do anything. If you’ve considered walking away from it all to join the legions of van dwellers, let us lend a helping hand. Everywhere on social media, you see breathtaking pictures of converted vans. These people who have launched themselves into van living with complete success. They seem to live the ultimate dream of freedom, rebellion, and careless, peaceful existence. Are you ready to join them?

Many dream of dropping everything and just traveling around the world. It's a common dream, but few imagine embarking on that journey by bicycle. Exposed to the elements, legs burning, all your possessions strapped to you and your bicycle - it doesn't paint a relaxing picture, but this is just what Pierre-Yves Tremblay did.

The story of the American West is the story of a relentless quest for a precious resource: water. It is a tale of rivers diverted and dammed, of political corruptions and intrigue, of billion-dollar battles over water rights, of ecologic and economic disaster. In Cadillac Desert, Marc Reisner writes of the earliest settlers, lured by the promise of paradise, and of the ruthless tactics employed by Los Angeles politicians and business interests to ensure the city's growth. He documents the bitter rivalry between two government giants to transform the West.

The Space Age began just as the struggle for civil rights forced Americans to confront the long and bitter legacy of slavery, discrimination, and violence against African Americans. Presidents John F. Kennedy and Lyndon Johnson utilized the space program as an agent for social change, using federal equal employment opportunity laws to open workplaces at NASA and NASA contractors to African Americans while creating thousands of research and technology jobs in the Deep South to ameliorate poverty.

Yellowstone is America's premier national park. Today Yellowstone is often a byword for conservation, natural beauty, and a way for everyone to enjoy the great outdoors. But it was not always this way. Wonderlandscape presents a new perspective on Yellowstone, the emotions that various natural wonders and attractions evoke, and how this explains the park's relationship to America as a whole.