The Eiffel Tower grows taller in summer
The Eiffel Tower expands by about six inches in summer heat due to thermal expansion, a clever design feature that prevents structural damage.
Paris's iconic Eiffel Tower actually grows about six inches taller during hot summer months. This amazing phenomenon is due to thermal expansion, a basic physics principle where materials like iron expand when heated. Built primarily of wrought iron, the tower stretches as temperatures rise, a design feature engineers cleverly accounted for in 1889.
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