performed by Pastuhov Artyom 10 a class

Eiffel Tower (Fr. la tour Eiffel) - the most recognizable architectural landmark of Paris, the world-famous as a symbol of France, named after its designer Gustave Eiffel. Eiffel himself called it simply - the 300-meter tower(tour de 300 mètres). In 2006 the tower was visited by 6,719,200 people, and its history until December 31, ,812 people. That is, the tower is the most visited and most photographed attraction in the world. The symbol of Paris was conceived as a temporary structure - a tower served as the entrance arch of the Paris World Exhibition in From the demolition of planned (20 years after the show) radio antenna tower saved, mounted on the top - it was the epoch of the introduction of radio.

construction Construction work for two years, two months and five days (January 28, 1887 to March 31, 1889) served as 300 workers. Record time contributed to the construction of extremely high quality drawings with exact dimensions of more than 18,038 metal parts, which are used to build 2.5 million rivets.

Weight metal construction t (total weight of t). Today, this metal could build just three towers. The foundation derived from the concrete sets. Fluctuations in the tower during the storms do not exceed 15 cm The ground floor is a pyramid (129.2 m each side of the base), formed by four columns, joining at a height of meters curved arch, the vault is the first platform the Eiffel Tower. The platform is a square (65 m in diameter). On this platform rises a tower of the second pyramid formed by four as columns, joining arch, which is (at an altitude of m), the second platform (the square of 35 m in diameter).

Four columns, rising to the second platform, and gradually approaching pyramidal intertwined to form a huge pyramidal tower (190 m), carrying on a third platform (at an altitude of m), and a square (16.5 m in diameter) on the It stands a lighthouse with a dome, on which at an altitude of 300 meters is a platform (1.4 m in diameter). Lead to the tower stairs (1792 steps) and elevators. The first platform was built rooms of the restaurant, on the second platform were placed in tanks with machine oil to the hydraulic hoist (lift) and a restaurant in a glass gallery. On the third platform located astronomical and meteorological observatory and physical study. The light beacon was visible at a distance of 10 km.

Under the first balcony, on all four sides of the parapet are engraved the names of 72 prominent French scientists and engineers, as well as those who have made special contribution to the creation of Gustave Eiffel. These inscriptions have appeared in the early XX century and was restored in by «Société Nouvelle d'exploitation de la Tour Eiffel», hired for the operation of the Municipality the Eiffel Tower. The tower itself is owned by the city of Paris.