Curious Minute answer

What causes the Eiffel Tower to become slightly taller in warm weather?

The answer

Thermal expansion of its iron

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Why it's right

The Eiffel Tower's iron expands when it heats up and contracts when it cools. This thermal expansion can make the tower slightly taller in warm weather. Uneven heating can also make its top shift sideways.

toureiffel.paris: why does eiffel tower change size

Did you know?

Uneven heating can also make the top lean slightly away from the sun.

toureiffel.paris: why does eiffel tower change size

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Sources: toureiffel.paris