Did you know?

<p>The Eiffel Tower is officially 324 meters high but it’s height changes depending on the season. In hot summer days thermal expansion causes the metal to grow and the tower can get with more than 15cm taller.</p>

The Eiffel Tower is officially 324 meters high but it’s height changes depending on the season. In hot summer days thermal expansion causes the metal to grow and the tower can get with more than 15cm taller.

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If I have been able to see further, it was only because I stood on the shoulders of giants. 

Isaac Newton