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The Eiffel Tower Is Taller In Summer

The Eiffel Tower Is Taller In Summer

The height of the Eiffel Tower-which is 324 meters on average-changes depending on the season. When the hot summer sun beats down on it, thermal expansion causes the metal to grow. The tower can swell in height by as much as 17 centimeters (6.75 inches). But once the hot sun goes down, the expansion decreases.

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Key Facts In This Video

  1. The Eiffel Tower is 324 meters tall, when you include the antenna spire. 00:05

  2. An 1889 competition for the World's Fair challenged people to design the tallest structure in the world, stretching 1,000ft into the sky. 00:18

  3. The parts of the Eiffel Tower were all constructed on-site, using 2.5 million rivets. 01:24

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