検索キーワード： 民間

Lo que más ha envidiado el hombre es la capacidad de vuelo de determinados animales, especialmente las aves. Leonardo Da Vinci: prototipos de máquinas voladoras. Hoy en día: el avión, medio de transporte moderno y rápido. Las alas: elementos esenciales en el vuelo.

When planes crash, bridges collapse, and automobile gas tanks explode, we are quick to blame poor design. But Henry Petroski says we must look beyond design for causes and corrections. Known for his masterly explanations of engineering successes and failures, Petroski here takes his analysis a step further, to consider the larger context in which accidents occur. In To Forgive Design he surveys some of the most infamous failures of our time.

The Golden Gate Bridge is an icon of one of the most mythic of American cities, San Francisco. Standing between the Bay and the mighty Pacific like a guardian of the city, the Golden Gate retains its grip on the American imagination long after its 27-year record of being the longest suspension bridge in the world was superseded.

A monumental tale of American ambition, told by Pulitzer Prize–winning author and master historian David McCullough. This gripping saga of the creation of the Brooklyn Bridge, one of the country’s boldest engineering achievements, reveals not only the politics and personalities behind...

As breathtaking today as when it was completed, Hoover Dam ranks among America's greatest achievements. The story of its conception, design, and construction is the story of the United States at a unique moment in history: when facing both a global economic crisis and the implacable elements of nature, we prevailed.

Save money with hands-on, smart household energy solutions!Want to make eco-friendly changes in your house that will save energy? This practical guide is packed with tips and projects for increasing your home's energy efficiency while reducing costs and cutting down on waste and pollution...

The stunning story of one of America’s great disasters, a preventable tragedy of Gilded Age America, brilliantly told by master historian David McCullough. At the end of the nineteenth century, Johnstown, Pennsylvania, was a booming coal-and-steel town filled with hardworking families striving...

A monumental tale of American ambition, told by Pulitzer Prize–winning author and master historian David McCullough. This gripping saga of the creation of the Brooklyn Bridge, one of the country’s boldest engineering achievements, reveals not only the politics and personalities behind...