شامل 4 عدد CD
Cranes _ 0:43:35
One of the most useful machines ever created, the crane is a simple but important combination of the pulley and the lever. Though cranes have been helping us build civilization from at least the time of the Egyptian pyramids, the modern steel-framed construction cranes are a relatively recent development. Put on your work boots as we ride through the history of cranes from ancient days to skyscraper construction sites, ocean-freighter docks, and the International Space Station.
Science of Brick _ 0:46:47
Megastructures looks at one of the world's most common building material, the brick. The documentary explores some of the historical brick structures from around the world and shows the process in making bricks.
Science of Concrete _ 0:47:24
Featuring the history and science of the building material, concrete.
Science of Steel _ 0:47:18
Featuring the history and science of the building material, Steel.
The Autobahn _ 0:44:12
Imagine a superhighway designed for speed...thousands of miles of roadway unhindered by limits of any kind. Buckle up for safety as we take you for the ride of your life when we explore the fascinating history and current reality of the world's fastest freeway. The number-one works project of the Third Reich, the Autobahn was known as Adolf Hitler's Road until Germany's defeat in WWII. Reconstructed and extended to more than four times its original size, it became a symbol of the New Germany.
Welding _ 0:44:43
It was a science first conjured amid the fiery ovens of ancient blacksmiths; today more than 50% of all U.S. products require some form of welding. Whether via electricity, flammable gases, sonic waves, or sometimes just raw explosive power, welding creates powerful bonds between metal unmatched by any other joining process.
