the Leaning Tower of Pisa leaning tower of Pisa (Italian: Torre pendente di Pisa or La Torre di Pisa; English:Leaning Tower of Pisa) is located at the city of Pisa, square, Piazza del Duomo (Piazza Del Duomo) bell tower of Christianity, Roman Catholic. A cylindrical tower 8, white marble stone, high 183.3 feet (meters), total weight 14 55.86500 tons estimated to have 293 step ladder to tilt 3.97 degrees, the amount of the tower, away from the vertical 3.9 m
started creating satisfying the 9 August. Ad1173 completed last year 1350 take time to build about 175 years. But construction interruption when creating go I 3 because the ground soft ground, underground, later in the year.1272 by Giovanni di Simone build lean to the other side to keep balance, but the building at this time. It disrupted again because of the war. It has a tower built and completed 7 I in 1999.1319 but the bell tower was built in A.D. 1372 using time to create all 177 years
later, in A.D. 1990-2001 หอเอนปีซา updated base more strength. To prevent the tower fall
. HistoryGalileo Galilei used this tower experiments about gravity, when he studied at the University of Pisa, using 2 ball ball unequal weight dropping. To prove that the ball 2 you will fall to the ground at the same time.In A.D. 1934 Benito Mussolini, trying to make the tower back perpendicular) by pouring concrete into the base, it makes the tower are more inclined to more. United States Army decided not to artillery fire put the Leaning Tower of Pisa
date 27 February.1964 Italian government tried to stop the tilt of the tower of Pisa. By experts in various fields, such as engineers, mathematicians and historians using steel wear than 800 tons. Support from the tower fell on January 2001 7
The tower of Pisa 1990 be closed to visitors to safety. It also dig ของอีกด้านหนึ่ง out to keep balance. And in the day 15 December 2001 the Leaning Tower of Pisa was open to visitors.300 years later after starting the
.The tower of Pisa. 1987 was declared a world heritage site as part of a Piazza Dei Miracoli Pierluigi collina is also 7 Wonders of the medieval world.
.In addition, this allows the Leaning Tower of Pisa Galileo scientists, Italians, who is world famous, was the truth. About the weight of a success as well
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