How Do Foundations Defy Gravity?
Synopsis
Construction of the Leaning Tower of Pisa began in 1173, but the building work stopped in 1178 after reaching the fourth floor and did not resume for 100 years.
Synopsis
At the Leaning Tower of Pisa, construction began in 1173 under architect Bonanno Pisano. The tower, part of a larger religious complex, was intended to be one of the tallest bell towers in Italy. However, the soft clay beneath it caused the structure to lean as soon as the first floor was completed. The documentary details the challenges of building on unstable ground and examines modern engineering solutions used in iconic structures like the Torre Europa in Madrid and the Toyota Carolla in Barcelona.
Deep Dive
Why Watch
- See how the Leaning Tower began to tilt after just one floor.
- Find out why construction was halted for a century.
- Meet the engineers who solved the tower's leaning problem.
Did You Know
- The Leaning Tower of Pisa was built to a height of 179 feet.
- Construction of the Leaning Tower stopped in 1178 and resumed 100 years later.
- The tower's weight reached 9,500 tons by the time it was four floors high.
- The soil beneath the Leaning Tower is soft clay, which is highly compressible.
Perfect For
Frequently Asked Questions
What is the height of the Leaning Tower of Pisa?
The Leaning Tower of Pisa is built to a height of 179 feet.
Who began the construction of the Leaning Tower of Pisa?
Construction of the Leaning Tower of Pisa was begun in 1173 by Bonanno Pisano.
What type of soil is beneath the Leaning Tower of Pisa?
The soil beneath the Leaning Tower of Pisa is a soft clay that is highly compressible and sensitive to changes in groundwater level.
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