The Expanding Eiffel Tower

The Expanding Eiffel Tower

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The Eiffel Tower, one of the most iconic landmarks in the world, expands during summer due to heat. Made primarily of iron, the structure absorbs heat from the sun, causing it to expand by up to 15 centimeters (6 inches) in height. This phenomenon occurs because of thermal expansion, where metals increase in size when heated and contract when cooled. Engineers accounted for this when designing the tower, ensuring that these temperature-induced changes would not compromise its stability. During colder months, the tower shrinks back to its original size.

How Temperature Affects Structures

The Eiffel Tower is not the only structure affected by temperature changes. Bridges, railways, and skyscrapers are all designed with expansion joints to prevent cracking or warping due to heat fluctuations. In extreme cases, failure to accommodate thermal expansion can lead to structural damage or even collapse. Engineers use materials that can withstand temperature variations and design buildings to flex rather than break under pressure. The Eiffel Tower’s seasonal expansion serves as a visible example of how science and engineering work together to ensure the durability of famous landmarks. Shutdown123

 

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