Extreme Engineering Collection 2

It might be a three-dimentsional city 12 times higher than the Great Pyramid of Giza "floating" over Tokyo Bay. Or a 55-mile-long bridge across the Berin Strait that would connect Asia and North American for the first time since the last Ice Age. Or even a 3,100-mile-long tunnel in the Atlantic Ocean that would serve trains traveling up to 5,000 miles per hour. Extreme Engineering showcases the challenges of designing and building the largest and most outrageous and awe-inspiring projectes ever conceived. Through rich computer animations you'll see how teh maaxing structures take shape, and you're there as engineers and scientists from around the world tackle the most daring feats of design and construction every attempted. Episodes: Tokyo's Sky City - In Japan, plans are on the table to build the tallest structure on earth. Called Sky City, it will be a kilometer tall, twice the height of any existing building. The towering, vertical city will house more than 100,000 people and provide for every aspect of modern life with parks, schools, homes, offices and shops. A solution to Tokyo's terrible land crunch, Sky City would be home to the world's very first homesteaders in the sky. But troubling questions surround it. Can it be built? And would it be safe from disasters both natural and man made, including earthquakes, typhoons and the very worst that can strike a tall building: deadly fire. Engineers and builders in Japan, Taiwan and Canada tackle these and other tough problems as they attempt to overcome obstacles and set the stage for the construction of one of the most daring feats of engineering ever attempted. Transatlantic Tunnel - A Trans-Atlantic floating tunnel carries 5000-mile-an-hour, Mag-lev (magnetically levitated) trains between New York, London and Paris. The train makes the 3100 mile journey in less than an hour. Passengers and freight travel in climate-controlled cars. The tunnel floats 150 feet under the North Atlantic's surface -- enough room for ships to pass safely overhead. The steel cables that tether the tunnel to the ocean floor are controlled by GPS and computers systems that can adjust the cables for shifts in ocean currents and tectonic plates. Passengers enjoy the comfort of specially designed seats that would relieve the effects of g-forces while whales and nuclear subs glide soundlessly around them. Prototypes are being built in Norway and Japan. Disaster is always possible. The Gulf Stream's massive current could bend and crack the tunnel. A nuclear sub could ram it. And if two trains were to collide and a fire broke out, or if the train's oxygen supply failed, the results could be catastrophic. Subways in America - The world's great cities have always struggled to find a balance between the need to attract more and more people and their ability to transport them efficiently. For almost a century, New York City has relied on the subway to transport its ever-expanding population. But after decades of neglect, New York's once great subway was nearing collapse. "Subways in America" chronicles one of the most ambitious public works projects in the history of the US: a complete overhaul of the entire New York Subway. And today, New York's subway is coming back with a new super system that will restore its legendary status. Bridging the Bering Strait - Already on the drawing boards, The Bridge rejoins North America and Asia. It will generate unprecedented economic growth on both continents and is another link in The Great Global Highway introduced in "ETI I". Its 220 spans cross the Arctic Ocean over 55 miles of violent seas and crushing ice. Each span is 1200 feet long, with two center spans 1800 feet long and high enough to accommodate large ships. The bridge's road deck is a giant double-box, allowing for two-way truck, car and train traffic, as well as oil, gas and electric pipelines. The bridge's spans rest on hundreds of concrete gravity piers, each weighing millions of pounds to withstand the pressure of millions of tons of moving Arctic ice. Because the weather is among the fiercest on earth, the entire bridge is encased in concrete, including the cables. Potential disasters will come from ice, ships ice-bound, grinding into piers, and from fires in the inner box caused by vehicle collisions or train derailments. City in a Pyramid - Tokyo is one of the most crowded cities in the world with nowhere left to build. To relieve the stress on a city bursting at the seams, engineers have trained their imaginations to the only vacant lot around the waters of Tokyo Bay. The dream: to build a massive Pyramid over the water, with skyscrapers suspended like peapods within it's enormous frame. Called the Shimizu Mega-City Pyramid it would be a kilometer tall and could be home to 750,000 people -- and possibly without the help of human builders. With the invention of new super-lightweight materials, humanoid robots, and self-assembling structures the pyramid might be the first city
ASIN: B0040LAHE4
VSKU: DBV.B0040LAHE4.G
Condition: Good
Binding: Dvd
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