How the World's Tallest Skyscraper was Built

The taller buildings get, the more difficult they are to build. Their own weight works against them at increasing heights, and the forces of nature are more dangerous at greater heights. The Burj Khalifa, however unnecessary, is a marvel of modern engineering. This TED-Ed video explains how engineering challenges have been met to make ever-taller skyscrapers. -via Geeks Are Sexy

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Source: neatorama

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