The sea has always posed a challenge to the expansion of human civilization. This video looks at three structures that all have to deal with the threat of the sea: a lighthouse, flood gates, and an oil rig. (24 minutes)

Tell a Friend! Your Name: Your Email: Your Friend's Email: Your Message: We respect your privacy and will not use your friend's address without permission. Item#: BVL20392 Copyright date: ©1998 DVD ISBN 978-1-4213-4639-7

Part of the Series : How Did They Build That?

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		Suspension Bridges From the earliest rope bridges in mountain gorges to the superlong sea crossings of today, the suspension bridge has been a consistently successful form. This video visits bridges in Britain, Denmark, and the Czech Republic to see how they work. (24 ...(more details)		DVD $79.95 DVD + 3-Year Streaming $119.93 3-Year Streaming $79.95
		Concrete Though many people think concrete is a modern material, it is almost as old as architecture itself. This video journeys through time to see concrete's early use in Italy, the rise of reinforced concrete, and a daring and beautiful modern masterpiece ...(more details)		DVD $79.95 DVD + 3-Year Streaming $119.93 3-Year Streaming $79.95
		Tall Buildings Building upward has long been a means for people to show off their wealth or power. This video explores the ambitions and limitations of the engineers of skyscrapers. Visits to a medieval Manhattan in Italy, the first true European skyscraper, and Eu...(more details)		DVD $79.95 DVD + 3-Year Streaming $119.93 3-Year Streaming $79.95
		Cantilever Bridges The cantilever is one of the most basic structural forms. This video explains the cantilever principle as it's applied in northeastern England and then marvels at the great Victorian achievement of the Forth Rail Bridge before seeing how the cantilev...(more details)		DVD $79.95 DVD + 3-Year Streaming $119.93 3-Year Streaming $79.95
		Harnessing Nature's Power The ability to tap the natural resources of the planet is crucial to our world, and a great challenge to an engineer. This video travels around Europe to show viewers a hydroelectric power station in the U.K., a wind turbine in Sweden, and a solar fu...(more details)		DVD $79.95 DVD + 3-Year Streaming $119.93 3-Year Streaming $79.95

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