Leaning Tower of Pisa (Italian: Torre pendente di Pisa) is the bell tower of Pisa Cathedral City Italian, was supposed to be perpendicular to the tower began to tilt rod, but after Alibd built in August 1173 m shortly. Located next to the Cathedral of Pisa "Square miracles" piazza dei Miracoli.
Located Tower of Pisa in Italy in Pisa in the state of Tuscany, construction started in 1175 AD, and as long as its construction 174 years, known as the Leaning Tower of Pisa to the presence of Milan by the deviation from the vertical plane, consists of eight floors built of white marble Roman-style, up 54.5 meters drawer and has built within the walls consisting of 300 degrees, (now equipped with an electric elevator
Tendency is evident in terms of about 18 feet (the tendency of more than five degrees), and said that the reason for this inclination is the looseness and falling in the soil by building the tower. The back of this inclination since the early stages of building the tower, but the architects continued to build on the basis of the same inclination, and in 1275 AD when they were building a combined fourth and fifth of the tower tried to architects move the center of gravity of the tower to avoid the inclination, but it seems they were not successful so, and even now taking place attempts to stop Milan by establishing the pillars of dolly.
Since 1990 in the last century closed the tower and prevent tourists from climbing because it is an exhibition of the collapse at any moment.
Tower of Pisa has been associated in the world famous Italian Galileo Galilei Galilei and his experience on the ground speed.
Height of the tower is 55 meters above the ground. The estimated mass to 14.500 tons. The current tendency is estimated at 5.5 °, and 294 degree tower.
The establishment of the tower began in August 8, 1173 AD. After building the third floor in 1178, money the tower and stopped the construction work for a century. In 1272 AD, was the construction of four additional floors at an angle of inclination to amend. Business and stopped again in 1301. At last in 1372 built decks and put the bell in the tower.
Tower of Pisa has been associated in the world famous Italian Galileo Galilei Galilei and his experience on the ground speed.
Height of the tower is 55 meters above the ground. The estimated mass to 14.500 tons. The current tendency is estimated at 5.5 °, and 294 degree tower.
The establishment of the tower began in August 8, 1173 AD. After building the third floor in 1178, money the tower and stopped the construction work for a century. In 1272 AD, was the construction of four additional floors at an angle of inclination to amend. Business and stopped again in 1301. At last in 1372 built decks and put the bell in the tower.
There is a dispute about the identity of the architect who built the Leaning Tower of Pisa. For years, Bonano was Pisanu is built by the architect, a renowned artist of the twelfth century of Pisa, famous bronze his works, especially in the Cathedral of Pisa. Construction of the tower, which started in 1174 by Bonano Pizano, and was completed after a long pause at the hands of Giovanni Pisanu was in the second half of the fourteenth century by Tommaso di Andrea Pisanu.
The story goes that Galileo Galilei dropped balls (cannon) women with different masses from the tower to demonstrate that the speed of their fall does not depend on Ktlhma. This story, although it is on the lips of a pupil of Galileo, is largely wrong.
Benito Mussolini ordered the tower to be placed horizontal, and was cast in concrete foundations. The result was unexpected and made the tower dive more into the soil.
The story goes that Galileo Galilei dropped balls (cannon) women with different masses from the tower to demonstrate that the speed of their fall does not depend on Ktlhma. This story, although it is on the lips of a pupil of Galileo, is largely wrong.
Benito Mussolini ordered the tower to be placed horizontal, and was cast in concrete foundations. The result was unexpected and made the tower dive more into the soil.
During World War II, the U.S. army destroyed all the towers in Pisa, almost, for fear of the possibility of snipers in the towers. The bombing of Tower of Pisa is also planned; but the decision came at the last minute to pull the tower saved from the destruction.
On February 27, 1964, asked the Italian government aid to prevent the tower from falling. Was appointed a multilateral group of engineers, mathematicians, historians, and they met in the Azores islands to discuss how to install it. After several decades of research and work on the subject, the tower was closed to visitors in January 1990. After a decade of efforts to patch and the installation was re-opened the doors to visitors in December 15, 2001.
On February 27, 1964, asked the Italian government aid to prevent the tower from falling. Was appointed a multilateral group of engineers, mathematicians, historians, and they met in the Azores islands to discuss how to install it. After several decades of research and work on the subject, the tower was closed to visitors in January 1990. After a decade of efforts to patch and the installation was re-opened the doors to visitors in December 15, 2001.
Been proposed several methods to install the tower, including the addition of 800 metric tons of lead Kthagl versus high on the party or from the base of the tower. The final solution to correct the inclination was to remove 38 meters cube of soil from under the party's high from the base of the tower. The tower was declared "stable" for the next three hundred years at least. At least two people jumped from the tower using a parachute (parachute) are Mike McCarthy in the August 5, 1988 and (Boston Globe on August 6, 1988), Arne Arthus in the February 1, 2000
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