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Eiffel Tower

technology Maturity 9-11

The Eiffel Tower is a tall tower.

Sous la Tour Eiffel 1.jpg
Sous la Tour Eiffel 1.jpg
It is in Paris, France. It is made of iron. Many people go to see it. It is very famous.
1000 Eiffel tower night illumination by Pierre Bideau in Paris Photo by Giles Laurent.jpg
1000 Eiffel tower night illumination by Pierre Bideau in Paris Photo by Giles Laurent.jpg
Would you like to climb it?

52 words

The Eiffel Tower is a very tall tower.

Sous la Tour Eiffel 1.jpg
Sous la Tour Eiffel 1.jpg
It sits in a city called Paris. An engineer named Gustave Eiffel helped build it.
Maurice koechlin pylone.jpg
Maurice koechlin pylone.jpg
It is made of strong iron. The tower was built for a big fair.

Many people visit the tower every year.

1000 Eiffel tower night illumination by Pierre Bideau in Paris Photo by Giles Laurent.jpg
1000 Eiffel tower night illumination by Pierre Bideau in Paris Photo by Giles Laurent.jpg
You can go up in a lift. You can also climb many stairs. There are even restaurants inside the tower. It is a very famous sight in the world.

95 words

The Eiffel Tower is a famous iron tower in Paris, France.

Sous la Tour Eiffel 1.jpg
Sous la Tour Eiffel 1.jpg
It was built between 1887 and 1889. Engineers designed it for the 1889 World's Fair.
Maurice koechlin pylone.jpg
Maurice koechlin pylone.jpg
Two engineers named Maurice Koechlin and Émile Nouguier first had the idea. Gustave Eiffel's company built the tower. People call it the "Iron Lady" because it is made of wrought iron.
Les fondations de la Tour Eiffel, maçonneries.jpg
Les fondations de la Tour Eiffel, maçonneries.jpg

At first, some artists did not like the design. They thought it was not beautiful. But the tower became a global icon. It was the tallest man-made structure for 41 years. It held this title until 1930.

Visitors can go to three different levels. You can use a lift or climb the stairs. To get to the second level, you must climb 600 steps. There are restaurants on the first and second levels.

Gustaves Apartment - Eiffel (3384390462).jpg
Gustaves Apartment - Eiffel (3384390462).jpg
On the top level, there is a private apartment. Gustave Eiffel used this space to host friends. Today, millions of people visit the tower every year. It is a very famous part of France.

184 words

The Eiffel Tower is a famous lattice tower in Paris, France.

Sous la Tour Eiffel 1.jpg
Sous la Tour Eiffel 1.jpg
It stands on the Champ de Mars. People often call it "La dame de fer," which means "Iron Lady." This nickname comes from the wrought iron used to build it.
Paris Eiffel 092.JPG
Paris Eiffel 092.JPG
The tower was made for the 1889 World's Fair. It also celebrated the 100th anniversary of the French Revolution. Today, it is a global icon for France.
Delaunay - Tour Eiffel.jpeg
Delaunay - Tour Eiffel.jpeg

Building the tower was a huge job that happened in steps. First, workers built strong foundations in the ground.

Les fondations de la Tour Eiffel, maçonneries.jpg
Les fondations de la Tour Eiffel, maçonneries.jpg
Some parts used concrete slabs. Other parts near the river used special air-filled boxes called caissons. Next, the iron parts were put together.
Eiffel Tower plans 21.jpg
Eiffel Tower plans 21.jpg
A factory made 18,038 different pieces. These pieces arrived on horse-drawn carts. Workers used 2.5 million rivets to join the metal together. Everything had to fit perfectly.

Engineers Maurice Koechlin and Émile Nouguier first thought of the design. They worked for the company of Gustave Eiffel.

Maurice koechlin pylone.jpg
Maurice koechlin pylone.jpg
They later asked Stephen Sauvestre to help with the look. Sauvestre added pretty arches and a glass pavilion. Gustave Eiffel bought the rights to the design himself. He wanted the tower to be a symbol for France. Construction began in 1887 and finished in 1889.
Exposition Universelle de Paris 1889 - Universitäts- und Landesbibliothek Darmstadt.jpg
Exposition Universelle de Paris 1889 - Universitäts- und Landesbibliothek Darmstadt.jpg

For a long time, the tower was the tallest thing in the world. It was taller than the Washington Monument. It held this record for 41 years. This lasted until the Chrysler Building was finished in 1930.

Dimensions Eiffel Tower.svg
Dimensions Eiffel Tower.svg
The tower was the first to pass 200 metres and 300 metres in height. In 2022, about 5.889 million people visited it. It is a very popular monument. In 2015, 6.91 million people went up the tower.
Eiffel Tower Visitors.svg
Eiffel Tower Visitors.svg

You can visit the tower in many ways. There are three levels for visitors to see. You can take a lift or climb the stairs. To reach the second level, you must climb 600 steps.

Tour Eiffel Ascenseur Roux, Combaluzier et Lepape.jpg
Tour Eiffel Ascenseur Roux, Combaluzier et Lepape.jpg
There are restaurants on the first and second levels. The top level has the highest public view in the European Union. Gustave Eiffel even had a private apartment at the very top. He used it to host famous friends like Thomas Edison.
Gustaves Apartment - Eiffel (3384390462).jpg
Gustaves Apartment - Eiffel (3384390462).jpg

406 words

The Eiffel Tower is a massive lattice tower located on the Champ de Mars in Paris, France.

Sous la Tour Eiffel 1.jpg
Sous la Tour Eiffel 1.jpg
It is constructed primarily from wrought iron, which earned it the local nickname "La dame de fer," or the "Iron Lady."
Paris Eiffel 092.JPG
Paris Eiffel 092.JPG
The tower was built to serve as the centerpiece for the 1889 World's Fair, also known as the Exposition Universelle. This event was held to celebrate the centennial anniversary of the French Revolution. Today, the tower is a global cultural icon and one of the most recognizable structures on Earth.
Delaunay - Tour Eiffel.jpeg
Delaunay - Tour Eiffel.jpeg

The design of the tower began with two senior engineers, Maurice Koechlin and Émile Nouguier.

Maurice koechlin pylone.jpg
Maurice koechlin pylone.jpg
They worked for the Compagnie des Établissements Eiffel. In May 1884, Koechlin sketched a concept for a great pylon. This design featured four lattice girders that stood apart at the base. These girders converged at the top and were joined by metal trusses at regular intervals. To improve the aesthetic appeal, Stephen Sauvestre added decorative arches to the base. He also included a glass pavilion on the first level. Gustave Eiffel eventually bought the patent rights for the design. He presented the plans to the French government in March 1885.

Construction of the tower was a complex engineering feat that required extreme precision.

Les fondations de la Tour Eiffel, maçonneries.jpg
Les fondations de la Tour Eiffel, maçonneries.jpg
Work on the foundations began on January 28, 1887. The east and south legs rested on four concrete slabs each. The north and west legs were more difficult because they were near the river Seine. Engineers used compressed-air caissons to install piles for these legs. These caissons were driven to a depth of 15 meters. Each leg rested on a block of limestone with an inclined top. This top supported a metal shoe anchored by large bolts. The drawing office produced 1,700 general drawings and 3,629 detailed drawings for the project.
Eiffel Tower plans 21.jpg
Eiffel Tower plans 21.jpg

Once the foundations were set, the ironwork erection began on June 30, 1887. The tower is composed of 18,038 individual pieces. These components were manufactured at a factory in Levallois-Perret. They were transported to the site on horse-drawn carts.

Tour Eiffel Ascenseur Roux, Combaluzier et Lepape.jpg
Tour Eiffel Ascenseur Roux, Combaluzier et Lepape.jpg
Workers joined these pieces using 2.5 million rivets. No drilling or shaping was done on the construction site. If a part did not fit perfectly, it was sent back to the factory. During construction, the legs were built as cantilevers. A large timber scaffold was later used to ensure structural integrity. This period caused some public concern regarding the stability of the tower.

At the time of its completion, the tower was a record-breaking structure. It was the first structure in the world to surpass both the 200-meter and 300-meter marks.

Dimensions Eiffel Tower.svg
Dimensions Eiffel Tower.svg
During construction, it surpassed the Washington Monument to become the tallest human-made structure in the world. It held this title for 41 years until the Chrysler Building was finished in 1930. Because of a broadcasting aerial added in 1957, the tower is now taller than the Chrysler Building. Excluding transmitters, it is the second tallest free-standing structure in France, following the Millau Viaduct.
Tour Eiffel le sommet 08-2015 (cropped).jpg
Tour Eiffel le sommet 08-2015 (cropped).jpg

Not everyone was happy with the design when it was first proposed. A group called the "Committee of Three Hundred" formed to protest the tower.

Caricature Gustave Eiffel.png
Caricature Gustave Eiffel.png
This group included famous artists and architects like Charles Garnier. They published a petition titled "Artists against the Eiffel Tower." Some critics believed the metal structure was impractical or lacked beauty. Gustave Eiffel defended his work by comparing it to the Egyptian pyramids. He argued that the tower would be a grandiose and admirable edifice. Over time, many protesters changed their minds as the tower became a symbol of France. In 1918, the poet Guillaume Apollinaire even wrote a poem in the shape of the tower.
Guillaume Apollinaire Calligramme.JPG
Guillaume Apollinaire Calligramme.JPG

The tower remains a massive destination for global tourism. It has three levels available for visitors. The first and second levels contain restaurants.

La Tour Eiffel - terrasse de la première plate-forme.jpg
La Tour Eiffel - terrasse de la première plate-forme.jpg
Visitors can ascend the tower by stairs or by lift. The climb from the ground to the first level is over 300 steps. The climb from the first to the second level is also over 300 steps. This makes the total staircase ascent 600 steps. The top level features the highest public observation deck in the European Union. Gustave Eiffel even built a private apartment on the third level. He used this space to host famous guests, such as Thomas Edison.
Gustaves Apartment - Eiffel (3384390462).jpg
Gustaves Apartment - Eiffel (3384390462).jpg

The Eiffel Tower's importance is reflected in its visitor numbers. In 2015, 6.91 million people ascended the tower. In 2022, the monument received 5,889,000 visitors.

Eiffel Tower Visitors.svg
Eiffel Tower Visitors.svg
It is recognized as the most visited monument with an entrance fee in the world. The tower was designated a historic monument in 1964. In 1991, it became part of the UNESCO World Heritage Site known as "Paris, Banks of the Seine." It continues to serve as a vital piece of French cultural and architectural history.

851 words
🖼️ Images & Media (25)
File:Maurice koechlin pylone.jpg
Maurice koechlin pylone.jpg
File:Caricature Gustave Eiffel.png
Caricature Gustave Eiffel.png
File:Guillaume Apollinaire Calligramme.JPG
Guillaume Apollinaire Calligramme.JPG
File:Les fondations de la Tour Eiffel, maçonneries.jpg
Les fondations de la Tour Eiffel, maçonneries.jpg
File:Exposition Universelle de Paris 1889 - Universitäts- und Landesbibliothek Darmstadt.jpg
Exposition Universelle de Paris 1889 -...
File:Georges Garen embrasement tour Eiffel.jpg
Georges Garen embrasement tour Eiffel.jpg
Vue Lumière No 992 - Panorama pendant...
File:Santos-Dumont flight around the Eiffel Tower.jpg
Santos-Dumont flight around the Eiffel Tower.jpg
File:Delaunay - Tour Eiffel.jpeg
Delaunay - Tour Eiffel.jpeg
File:2013 Fireworks on Eiffel Tower 11.jpg
2013 Fireworks on Eiffel Tower 11.jpg
File:Sous la Tour Eiffel 1.jpg
Sous la Tour Eiffel 1.jpg
File:Lightning striking the Eiffel Tower - NOAA.jpg
Lightning striking the Eiffel Tower - NOAA.jpg

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