Resultados para "América" en Líderes de ciencia y tecnología

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.

Ben Franklin's own lively story of his early years is a unique, fascinating, and influential look at this American founding father. It has been taught in schools as a moral tract, as a guide to self-improvement, and as the Great American Success Story. It also is relished both for its insight into colonial life and the mind of the man who most affected the development of our democratic form of government.

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.

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.

In this book filled with exclusive interviews with Canadian astronauts and key players in the Canadian space program, Elizabeth Howell showcases how a little space program is making it big in the universe.

Built of titanium and a chrome-nickel alloy known as Inconel X, the X-15 was the fastest plane ever built, streaking through the lower reaches of outer space even before the first space capsules reached orbit. First tested in 1959, the X-15 proved to be a crucial testing ground for the astronauts and hardware in the Mercury, Gemini, Apollo, and even the Space Shuttle programs. Celebrated reporter Richard Tregaskis spent time with the pilots, engineers, and other key personnel involved in the project.

Pulitzer Prize winner Wallace Stegner recounts the remarkable career of Major John Wesley Powell, the distinguished ethnologist and geologist who explored the Colorado River, the Grand Canyon, and the homeland of the Southwest Indian tribes. This classic work is a penetrating and insightful study of the Powell’s career, from the beginning of the Powell Survey, in which Powell and his men famously became the first to descend the Colorado River, to his eventual expulsion from the Geological Survey.

At stake in 1896 was the new idea that some landscapes should be collectively, permanently owned by a democratic government. Although many people today think of public lands as an American birthright, their very existence was then in doubt and dependent on a merger of the talents of these two men. Natural Rivals examines a time of environmental threat and political dysfunction not unlike our own and reveals the complex dynamic that gave birth to America’s rich public lands legacy. 

The Los Angeles Times headline screamed: Rocket Scientist Killed in Pasadena Explosion. The man known as Jack Parsons, a maverick rocketeer who helped transform a derided sci-fi plotline into actuality, was at first mourned as a scientific prodigy. But reporters soon uncovered a more shocking story: Parsons had been a devotee of the city’s occult scene.

Without John C. Houbolt, a mid-level engineer at NASA, Apollo 11 would never have made it to the moon. Top NASA engineers on the project, including Werner Von Braun, strongly advocated for a single, huge spacecraft to travel to the moon, land, and return to Earth. It's the scenario used in 1950s cartoons and horror movies about traveling to outer space. Houbolt had another idea: Lunar Orbit Rendezvous. LOR would link two spacecraft in orbit while the crafts were travelling at 3,600 miles an hour around the moon. His plan was ridiculed and considered unthinkable.

Why is Benjamin Franklin so compelling? What made him so successful in his day? And why has he continued to influence generations of Americans? Tackle these questions and more in The Age of Benjamin Franklin, a thorough - and sometimes surprising - course that presents a full portrait of a personality that defies easy definition.

In the early years of the 18th century, a band of French scientists set off on a daring, decade-long expedition to South America in a race to measure the precise shape of the earth. Like Lewis and Clark's exploration of the American West, their incredible mission revealed the mysteries of a little-known continent to a world hungry for discovery. Scaling 16,000-foot mountains in the Peruvian Andes, and braving jaguars, pumas, insects, and vampire bats in the jungle, the scientists barely completed their mission.

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.