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Started from the Bottom
When Soft Means Strong
Why Does the Leaning Tower Lean?
Key Facts In This Video
The Leaning Tower of Pisa used to lean at a 5-degree angle, but restorative efforts have decreased its tilt to around 4 degrees. 00:05
This is an error—the Leaning Tower of Pisa weighs around 14,500 tons. 00:20
The Leaning Tower of Pisa actually leans and curves back upward, like a banana. 00:46
To stabilize the Leaning Tower of Pisa, workers removed about 220 pounds (100 kg) of soil from beneath its raised end every day for a year. 02:41
Engineers claim the Leaning Tower of Pisa can survive another three centuries. 02:58
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