Galileo used previously wrestled this trial Chamber Lake Hussain about gravity. In the episode, he studied at the University of Pisa, using two balls of equal weight to throw balls down to prove that 2 ball will reach the ground simultaneously, which is, according to Galileo are expected.In the year 1934 Benito Mussolini attempted to make the spear back perpendicular original by concrete down to the base of the Tower, but the more tilt. The U.S. Army. Decided not to fire Cannon the leaning tower of Pisa.February 27 1964 The Government of Italy Trying to stop the tilt of the leaning tower of Pisa, by experts in various fields, such as engineer, mathematician, and historian of 800 tons, steel pledged the Tower came down.On January 7, 1990 The leaning tower of Pisa is closed to visitors for security also excavation of one side or the other to make more balanced and on December 15, 2001, the leaning tower of Pisa has been open to visitors again, and then the balance is declared in 300 years later after making updates.1987 The leaning tower of Pisa has been declared a world heritage site. As part of the Piazza Dei Miracoli leaning tower of Pisa is also the 7 Wonders of the medieval world, too.
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