Resultados para "Estados Des Unidos de America" en Informática y tecnología

The intercontinental ballistic missile (ICBM), designed to quickly deliver thermonuclear weapons to distant targets, was the central weapons system of the Cold War. ICBMs also carried the first astronauts and cosmonauts into orbit. More than a generation later, we are still living with the political, technological, and scientific effects of the space race, while nuclear-armed ICBMs remain on alert and in the headlines around the world. Christopher Gainor explores the US Air Force's decision, in March 1954, to build the Atlas, America's first ICBM.

As NASA prepared for the launch of Apollo 11 in July 1969, many African American leaders protested the billions of dollars used to fund "space joyrides" rather than help tackle poverty, inequality, and discrimination at home. This volume examines such tensions as well as the ways in which NASA's goal of space exploration aligned with the cause of racial equality. It provides new insights into the complex relationship between the space program and the civil rights movement in the Jim Crow South and abroad.

Thomas Jefferson praised Tom Paine as the greatest political writer of the age. The author of Common Sense and Rights of Man, Paine helped make revolutions in America and France. But beyond his inspiring calls to action, Paine harbored a deeper political vision for his adopted country. It was embodied in an architectural project that he spent decades planning: an iron bridge to span the Schuylkill River at Philadelphia.

Early True Believers: The Untold Story of Silicon Alley is a 1990s saga of ambition and innovation set in Manhattan’s Silicon Alley, a swath of downtown that served as New York City’s nerve center of tech entrepreneurship. The series features the stories of a forgotten cohort of early internet visionaries, countercultural social networks, the digital gold rush, and the lavish events that came with it, including one held in an underground Tribeca bunker that abruptly ended in a police raid—a harbinger of the upheaval to come.

Locked away in refrigerated vaults, sanitized by gas chambers, and secured within bombproof caverns deep under mountains are America's most prized materials: the ever-expanding collection of records that now accompany each of us from birth to death. This data complex backs up and protects our most vital information against decay and destruction, and yet it binds us to corporate and government institutions whose power is also preserved in its bunkers, infrastructures, and sterilized spaces.

Driven by eyewitness accounts and combining urban history with a life-and-death drama and a technological detective story, Floodpath grippingly reanimates the reality behind LA noir fictions like the classic film Chinatown. In an era of climate change, increasing demand on water resources, and a neglected American infrastructure, the tragedy of the St. Francis Dam has never been more relevant.

On a cold January morning in 1986, NASA launched the Space Shuttle Challenger, despite warnings against doing so by many individuals including Allan McDonald. The fiery destruction of Challenger on live television moments after launch remains an indelible image in the nation's collective memory. In Truth, Lies, and O-Rings, McDonald, a skilled engineer and executive, relives the tragedy from where he stood at Launch Control Center.

During the late nineteenth and early twentieth centuries, Americans depended upon ice to stay cool and to keep their perishable foods fresh. Jonathan Rees tells the fascinating story of how people got ice before mechanical refrigeration came to the household. Drawing on newspapers, trade journals, and household advice books, Before the Refrigerator explains how Americans built a complex system to harvest, store, and transport ice to everyone who wanted it, even the very poor.

At the onset of the American Revolution, the British expected to quell the rebellion quickly with a show of overwhelming force. In an experiment in asymmetric warfare, David Bushnell created the first submarine vessel designed specifically “for the destruction of vessels of war”. In Turtle, the authors provide new insight into Bushnell’s “engine of devastation”, tracing the history of undersea warfare before Bushnell and the origin of the many innovations Bushnell understood would be necessary for conducting a covert submarine attack.

Physical infrastructure in the United States is crumbling. The American Society of Civil Engineers has, in its latest report, given American roads and bridges a grade of D and C+, respectively, and has described roughly 65,000 bridges in the United States as 'structurally deficient'. This crisis - and one need look no further than the I-35W bridge collapse in Minnesota to see that it is indeed a crisis - shows little sign of abating short of a massive change in attitude amongst politicians and the American public.