How Does The Hidden Problem of the Eiffel Tower Work?

The Eiffel Tower looks strong and solid, but it has a hidden problem that makes it stand tall, like how your legs help you walk without you thinking about it.

The Eiffel Tower is made of many long, skinny pieces called beams. These beams are connected together with lots of bolts and nuts, just like the straws in a drinking straw tower you might build at home. When people first saw the Eiffel Tower, they thought it would sway like a wobbly chair when the wind blew, but it didn’t!

Why? Because the beams act like springs inside the tower. Imagine pushing down on a coiled spring, it bounces back up. The same thing happens with the beams: when the wind pushes on them, they twist and bend a little bit, then snap back into place. This twisting and bending is called swaying, but it’s not enough to make the tower fall over.

Think of the Eiffel Tower as a giant metal jellybean, squishy on the inside, firm on the outside. When the wind blows, the jellybean moves a little, just like how your body moves when you walk, not too much, but enough to keep things interesting.

That’s how the hidden problem works, and why the Eiffel Tower stands tall even when it sways!