1in may, 886, the French government invited tenders for the Expo building. Design a tower in Paris's Ares Square. There are two conditions: the tower can attract tourists to buy tickets; It can be easily demolished after the World Expo.
On March 3 1 0889, the main building of the Eiffel Tower was completed. The Eiffel Tower became the most classic building of the 1889 World Expo.
On May 6th, 1889, the World Expo officially opened with a cannon on the Eiffel Tower. The sound of guns on the tower every morning and the light on the tower at night not only became the most popular building at the World Expo, but also constituted the romantic life in Paris.
According to the 20-year contract signed between the Paris municipal government and Eiffel, the tower will be demolished in 1909. But Paris at this time is inseparable from the Eiffel Tower.
After the advent of radio technology in the early 20th century, no one proposed to demolish this tower, because it is the highest point in Paris. In addition to its commemorative significance, the wireless telegraph center on the tower gave the French navy the most advanced means of communication in the world.
The radio equipment on the tower intercepted a large number of enemy secret messages during World War I, including the famous Matahari spy case.
19 10 On May 23rd, the Eiffel Tower began to tell the time on time, and the night signal covered more than 5,200 kilometers, which made the world realize time synchronization. The French physicist Wolff discovered cosmic rays by measuring the different radiation intensities at the top and bottom of the tower.
Since then, the Eiffel Tower has become the earliest radio and television transmitting station. It is with "natural beauty" and loyal service that the Eiffel Tower can "redeem itself" when its life expires. Prometheus, who was bound, was finally liberated and became the apple of all French people's eyes.
Before the Empire State Building appeared in new york in A.D. 1930, the Eiffel Tower was the tallest building in the world, which once led this growth trend. You can see towering TV towers, sightseeing towers and tourist towers in almost any city. As the famous motto of the World Expo says, "Everything starts with the World Expo".
1989 March 3 1, Eiffel Tower 100 years old. The Paris Tower Management Company specially held a grand commemorative event, which recreated the historical scene that Eiffel led everyone to the summit a hundred years ago: "Eiffel" wore a black dress, wore a wide-brimmed hat and held the national flag, and 30 "celebrities" and "construction workers" climbed the stairs with the grand drum music.
When he put the tricolor flag on the top of the tower, the 2 1 salute rang, pigeons flew around the tower, and colorful balloons floated in the blue sky. On the fence of the platform on the second floor of the tower, a colorful banner of "Celebrating the Tower 100" written in words from all over the world is hung.
Tourists from all over the world eagerly witnessed this spectacular sight. 199 1 year, UNESCO listed the Eiffel Tower as a cultural heritage in the World Heritage List.
Extended data:
The Eiffel Tower is 300 meters high, the antenna is 24 meters high and the total height is 324 meters. The Eiffel Tower is made up of many scattered steel components-it looks like a pile of model components.
Steel member 18038, weight 10000 tons. During the construction, 7 million holes were drilled, 12000 metal pieces and 2.5 million rivets were used. Except the four legs are reinforced concrete, the whole body is steel, and 7300 tons of wrought iron is used.
The tower is divided into three floors, which are 57.6m,115.7m and 276. 1 m respectively. There are restaurants on the first and second floors, and observation deck on the third floor. There are 17 1 steps from the tower foundation to the top of the tower.
The Eiffel Tower was originally built to celebrate the 0/00th anniversary of the victory of the French Revolution/KLOC-,and later it gradually became a tourist attraction, mainly for tourists.
At the same time, the Eiffel Tower will also play a huge role in scientific experiments: aerodynamic experiments? , material endurance research, mountaineering physiology, radio research, telecommunications problems,? Meteorological observation and so on.
120 years, the Eiffel Tower has experienced a process from technology to art to symbol. Now, the Eiffel Tower, as a craft design building with mixed technology and art, has appeared in front of the world as a humanistic symbol.
People's Network-Eiffel Tower: Prometheus of Liberation
Baidu Encyclopedia-Eiffel Tower