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EspañolEIFFEL TOWER
The 'Eiffel Tower' (, ) is an iron tower built on the ''Champ de Mars'' beside the River Seine in Paris, France. The tower has become a global icon of France.
Introduction
The Parisian landmark is the tallest structure in Paris and one of the most recognized structures in the world.[1] Named after its designer, engineer Gustave Eiffel, people visited the tower in 2006[2] and more than since its construction.[3] This makes the tower the most visited paid monument in the world per year.[4] Including the 24 m (79 ft) antenna, the structure is 324 m ( ft) high (since 2000), which is equivalent to about 81 levels in a conventional building.
At the time of its construction in 1887, the tower replaced the Washington Monument as the world's tallest structure, a title it retained until 1930, when New York City's Chrysler Building (319 m — ft tall) was completed. ThinkQuest article on the Eiffel Tower The tower is now the fifth-tallest structure in France. The Eiffel Tower is the tallest structure in Paris, with the second-tallest being the Tour Montparnasse (210 m — 689 ft), although that will soon be surpassed by Tour AXA ( m — ft).
The structure of the Eiffel Tower weighs tons. Depending on the ambient temperature, the top of the tower may shift away from the sun by up to 18 cm (7 in), due to thermal expansion of the metal on the side facing the sun. The tower also sways 6-7 cm (2-3 in) in the wind.[2]
The first and second levels are accessible by stairs and lifts. A ticket booth at the south tower base sells tickets to use the stairs which begin at that location. On the first platform, the stairs continue up from the east tower. The third level summit is only accessible by lift. Once you are on the first or second platform, the stairs are open for anyone to ascend or descend regardless if you have purchased a lift ticket or stair ticket. The actual count of stairs includes 9 steps to the ticket booth at the base, 328 steps to the first level, 340 steps to the second level, and 18 steps to the lift platform on the second level. When exiting the lift at the third level, 15 more steps exist to ascend to the upper observation platform. The actual step count is printed periodically on the side of the stairs to give an indication of progress. The majority of the ascent allows for an unhindered view of the area directly beneath and around the tower except during brief stretches of the stairway that are enclosed.
Maintenance of the tower includes applying 50 to 60 tons of three graded tones of paint every seven years to protect it from rust. On occasion, the color of the paint is changed — the tower is currently painted a shade of brownish-grey. However, the tower is actually painted three different colors in order to make it look the same color. The colors change from dark to light from top to bottom, but it looks the same because of the background (the sky being light and the ground being dark).[6] On the first floor, there are interactive consoles hosting a poll for the color to use for a future session of painting. The co-architects of the Eiffel Tower are Emile Nouguier, Maurice Koechlin and Stephen Sauvestre.[7]
Background
Eiffel Tower under construction in July 1888.
The structure was built between 1887 and 1889 as the entrance arch for the Exposition Universelle, a World's Fair marking the centennial celebration of the French Revolution. Eiffel originally planned to build it in Canada, for the Universal Exposition of 1888, but they rejected it. The tower was inaugurated on 31 March, 1889, and opened on 6 May. Three hundred workers joined together 18,038 pieces of puddled iron (a very pure form of structural iron), using two and a half million rivets, in a structural design by Maurice Koechlin. The risk of accident was great, for unlike modern skyscrapers the tower is an open frame without any intermediate floors except the two platforms. Yet because Eiffel took safety precautions including use of movable stagings, guard-rails and screens, only one man died.
The tower was met with dupa from the public when it was built, with many calling it an eyesore. (Novelist Guy de Maupassant — who claimed to hate the tower — supposedly ate lunch at the Tower's restaurant every day. When asked why, he answered that it was the one place in Paris where you couldn't see the Tower.) Today, it is widely considered to be a striking piece of structural art.
One of the great Hollywood movie clichés is that the view from a Parisian window always includes the tower. In reality, since zoning restrictions limit the height of most buildings in Paris to a few storeys, only the very few taller buildings have a clear view of the tower.
Image of the Eiffel Tower taken shortly after the end of World War II, in June of 1945.
Eiffel had a permit for the tower to stand for 20 years, meaning it would have had to be dismantled in 1909, when its ownership would revert to the City of Paris. The City had planned to tear it down (part of the original contest rules for designing a tower was that it could be easily demolished) but as the tower proved valuable for communication purposes, it was allowed to remain after the expiration of the permit. The military used it to dispatch Parisian taxis to the front line during the First Battle of the Marne, and it therefore became a victory statue of that battle.
Shape of the tower
Eiffel Tower from the base
At the time the tower was built many people were shocked by its daring shape. Gustave Eiffel was criticized for the design and accused of trying to create something artistic, or inartistic according to the viewer, without regard to engineering. Eiffel and his engineers, as renowned bridge builders however, understood the importance of wind forces and knew that if they were going to build the tallest structure in the world they had to be certain it would withstand the wind. In an interview reported in the newspaper Le Temps, Eiffel said:
The shape of the tower was therefore determined by mathematical calculation involving wind resistance. Several theories of this mathematical calculation have been proposed over the years, the most recent is a nonlinear integral differential equation based on counterbalancing the wind pressure on any point on the tower with the tension between the construction elements at that point. That shape is exponential.[8][9]
Installations
Since the beginning of the 20th century, the tower has been used for radio transmission. Until the 1950s, an occasionally modified set of antenna wires ran from the summit to anchors on the Avenue de Suffren and Champ de Mars. They were connected to long-wave transmitters in small bunkers; in 1909, a permanent underground radio center was built near the south pillar and still exists today. On 20 November, 1913 the Paris Observatory, using the Eiffel Tower as an antenna, exchanged sustained wireless signals with the United States Naval Observatory which used an antenna in Arlington, Virginia.
The object of the transmissions was to measure the difference in longitude between Paris and Washington, DC."Paris Time By Wireless," ''New York Times'', 22 November 1913, pg 1.
During the German occupation of Paris between 1940 and 1944 the tower was also used for German television broadcasts, which were apparently intended mostly for wounded German soldiers in local military hospitals. Since 1957, the tower has been used for transmission of FM radio and television.
The tower has two restaurants: ''Altitude 95'', on the first floor (95 m, 311 ft, above sea level); and the ''Jules Verne'', an expensive gastronomical restaurant on the second floor, with a private lift. This restaurant has one star in the Michelin Red Guide. In January 2007 a new multi-Michelin star chef Alain Ducasse was brought in to run ''Jules Verne''.[10]
Events
The Eiffel Tower served as an advertising space for Citroën from 1925 to 1934.
★ On September 10, 1889 Thomas Edison visited the tower. He signed the guestbook with the following message—
★
★ In 1902, the tower was struck by lightning, which meant that 100 m (330 ft) of the top had to be reconstructed and the lights illuminating the tower had to be replaced, as they were damaged by the high energy of the lightning.
★ Father Theodor Wulf in 1910 took observations of radiant energy radiating at the top and bottom of the tower, discovering at the top more than was expected, and thereby detecting what are today known as cosmic rays.
★ In 1925, the con artist Victor Lustig twice "sold" the tower for scrap metal.
★ In 1930, the tower lost the title of the world's tallest structure when the Chrysler Building was completed in '', ''Sex and the City'', ''28 Weeks Later'' and the 1985 James Bond film ''A View to a Kill''.
Trivia
The uppermost observation deck is with a height of 275 metres still the highest area of an architectural structure in the European Union open for the public.
Lattice towers taller than Eiffel Tower
| Name | Pinnacle height | Year | Country | Town | Remarks | |
|---|---|---|---|---|---|---|
| Kiev TV Tower | 1263 ft | 385 m | 1973 | Ukraine | Kiev | Tallest lattice tower of the world |
| Tashkent Tower | 1230 ft | 374.9 m | 1985 | Uzbekistan | Tashkent | |
| Pylons of Yangtze River Crossing | 1137 ft | 346.5m | 2003 | People’s Republic of China | Jiangyin | 2 towers, tallest pylons in the world |
| Dragon Tower | 1102 ft | 336 m | 2000 | People’s Republic of China | Harbin | |
| Tokyo Tower | 1091 ft | 332.6 m | 1958 | Japan | Tokyo | |
| WITI TV Tower | 1078 ft | 329 m | 1962 | U.S. | Shorewood, Wisconsin | |
| 'Eiffel Tower' | 1063 ft | 324 m | 1889 | France | Paris | |
Architectural structures in France taller than Eiffel Tower
| Name | Pinnacle height | Year | Structure type | Town | Remarks |
|---|---|---|---|---|---|
| Longwave transmitter Allouis | 350 m | 1974 | Guyed Mast | Allouis | |
| HWU transmitter | 350 m | ? | Guyed Mast | Rosnay | Multiple masts |
| Viaduc de Millau | 343 m | 2004 | Bridge Pillar | Milliau | |
| Transmitter Le Mans-Mayet | 342 m | 1993 | Guyed Mast | Mayet | |
| Transmitter Roumoules | 330 m | 1974 | Guyed Mast | Roumoules | spare transmission mast for longwave, insulated against ground |
| 'Eiffel Tower' | 324 m | 1889 | Tower | Paris |
Similar towers and reproductions
Similar towers (not scale models)
In order of decreasing height:
★ Kiev TV Tower, Kiev, Ukraine — At 385 m, the world's tallest lattice tower, with no observation deck for visitors.
★ Riga Radio and TV Tower, Riga, Latvia — m concrete tower on three legs.
★ Macau Tower, Macau SAR — m, with observation deck at m and with the highest bungee jump in the world at 233 m.
★ Dragon Tower, Harbin — a 336 m high lattice tower at Harbin, China.
★ Tokyo Tower, Tokyo, Japan — 9 m higher than the original (33 m if the TV antenna is included).
★ Yerevan TV Tower, Yerevan, Armenia — 311.7 m high lattice tower built from 1974 to 1977.
★ St. Petersburg TV Tower, St. Petersburg, Russia — 310 m lattice tower without observation deck.
★ Star Tower, Cincinnati, Ohio — m transmission tower, without observation deck.
★ Qingdao TV Tower, China — 232 m TV tower with observation deck.
★ Crystal Palace Transmitter, London, England — 222 m TV tower without observation deck, nicknamed London's Eiffel Tower.
★ Brasilia TV Tower, Brasilia, Brazil — 224 m lattice tower with an observation deck at a height of 75 m.
★ Guangzhou TV Tower, Guangzhou, China — A 217 m high TV tower of lattice steel.
★ Blosenbergturm, Beromünster, Switzerland — A 217 m high mast radiator used for broadcasting of DRS-1 on mediumwave frequency 531 kHz.
★ Nagoya TV Tower, Nagoya, Japan — 180 m
★ Odinstårnet, Odense, Denmark — A 177 meter high lattice tower, destroyed in 1944
★ The Spire The Arts Centre (Melbourne), Melbourne Australia — built in 1996 at a height of 163 m and is illuminated with roughly metres (&nsbp;feet) of optic fibre tubing, 150&nsbp;m (492&nsbp;feet) of neon tubing on the mast and incandescent lamps on the spire's skirt. The metal webbing of the spire is also influenced by the billowing of a ballerina's tutu.
★ Transmitter Ismaning, Ismaning, Germany — 163 m, a wooden radio tower in shape similar to Eiffel Tower (and nicknamed "Bavarian Eiffel Tower") was built in 1934.[16] In 1983 this tower was demolished, because it was of bad structural state.
★ Blackpool Tower, Blackpool, England — 158 m (519 ft); it is not quite a free—standing structure as it stands above the Tower Circus complex, where the four "legs" can be seen.
★ Mesquite Tower, Mesquite, Texas — m transmission tower, without observation deck.
★ Croydon Transmitter — A 152 m transmission tower in London, without observation deck
★ Radio Tower Berlin, Berlin, Germany — 150 m transmission tower with observation deck. Sometimes nicknamed as a copy of the Eiffel Tower, although the two structures are not too similar. The Radio Tower Berlin is the only observation tower whose feet are insulated from the ground.
★ Sapporo TV Tower, Sapporo, Japan — 147 m.
★ Gliwice Radio Tower, Gliwice, Poland — 118 m. This tower, which is built of wood without iron parts and is today world's tallest wooden structure, was nicknamed until 1945 "Silesian Eiffel Tower" by local population.
★ AWA Tower, Sydney, Australia — 101 m, 46 m on top of a 55 m building, built in 1938-39.
★ Beppu Tower, Beppu, Japan — 100 m[17]
★ Zendstation Zwollerkerspel — 90 m radio tower.
★ Tour métallique de Fourvière, Lyon, France — m lattice tower built from 1892 to 1894. Used until 1953 as an observation tower, but is now a TV tower — closed to visitors.
★ Torre del Reformador, Guatemala City, Guatemala — 75 m.
★ Brookmans Park Transmitter — two 60.96 metre high lattice towers, insulated against ground
★ Petřínská rozhledna, Prague, Czech Republic — 60 m, built in 1891.
★ Bachtel Tower, Hinwil, Switzerland — 60 m, built in 1986.
★ Watkin's Tower, Wembley Park, London, England — never completed, demolished in 1907.
★ Joseph's Cross, Stollberg/Harz, Germany — 38 m observation tower in form of a double cross.
★ Lemberg Tower, Lemberg Mountain, Germany — 33 m observation tower of lattice steel, built in 1899
★ Gehrenberg Tower, Deggenhausertal, Germany — 30 m observation tower of lattice steel, built in 1903
★ Tour du Belvédère — a small observation tower in Mulhouse, Alsace, France.
★ Woodwards Building, Vancouver, Canada — A small reproduction on the roof of the building was topped by a signature neon "W". This building has been demolished, only a small section of the facade remains. It will be replaced by condos and some low-income housing.
★ Hashawha Tower, Westminster, Maryland — This is a windmill that was donated to the Hashawha Bear Branch Nature Center. Standing at about 10 m (35 ft) tall, there are pegs on the side to climb up on, and there is a very small observation deck at the top.
Reproductions
In order of decreasing height:
★ In front of the Paris Las Vegas hotel/casino on the Las Vegas Strip, Paradise, Nevada, near Las Vegas, Nevada — 165 m (540 ft, scale 1:2).
★ Tianducheng, Hangzhou, China ~108 m [1] [2]
★ Shenzhen, China — ~100 m (~328 ft, scale 1:3)
★ Kings Island, Ohio — ~100 m (~328 ft, scale 1:3)
★ Kings Dominion, Virginia — 84 m (275 ft, scale 1:3.59)
★ Slobozia, Romania — 54 m (177 ft)
★ In Parizh, Chelyabinsk Oblast, Nagaybaksky District, Chelyabinsk Oblast, Russia. Built by South Ural Cell Telephone company as a cellphone tower — 50 m (164 ft)
★ Fayetteville, North Carolina — The Bordeaux Tower is about 45 m (150 ft) featuring an elevator that takes people to the top for a small view.
★ Walt Disney World's Epcot theme park in Lake Buena Vista, Florida (at the France Pavilion in World Showcase) — 23 (76 ft, scale 1:10)[18]
★ Paris, Texas — 20 m (65 ft)
★ As a Meccano model, housed at the Technology Museum of Georgia (Atlanta, Georgia) — 11 m (36 t)[19]
★ On the roof of the catering company Rungis Express in Meckenheim, Germany -(height unknown)
★ Centerpiece of the Falcon City of Wonders — a planned new development project in Dubai. UAE, featuring seven modern wonders of the world (planned).[20] (approximate coordinates)
★ Mini-Europe, Brussels, a m model (a proportion of 1:25 to the original).
★ Model on the roof of the Rue De Paris cafe in Brisbane, Australia — (roughly 12 m tall)
★ Model in indoor theme park in Genting Highlands, Malaysia
★ In Austin, Texas there is a m (25 ft) tall replica at the Dreyfus Antique Shop.
★ Model in Paris, Tennessee — about m (25 ft) tall.
★ Paris, Michigan; approximately 3 m (10 ft) tall and in a park
★ Golden Sands (Varna) sea resort, Bulgaria - A tower in comparsion 1:10 is built in the town as a tourist attraction.
★ Kazakhstan, Aktau - model at the front of the office of "Oil Construction Company"
Other structures carrying this name
★ Eiffel Tower Co-op in Hackensack, New Jersey, USA[3]
See also
★ World's tallest free standing structure on land
★ List of tallest buildings and structures in Paris
★ The 72 names on the Eiffel Tower
References
1. http://www.tour-eiffel.fr/teiffel/uk/documentation/chiffres/page/tour_monde.html
2. http://www.tour-eiffel.fr/teiffel/uk/documentation/structure/page/chiffres.html
3. http://www.tour-eiffel.fr/teiffel/uk/documentation/chiffres/page/frequentation.html
4. http://www.lemonde.fr/web/article/0,1-0@2-3232,36-938349,0.html
5. http://www.tour-eiffel.fr/teiffel/uk/documentation/structure/page/chiffres.html
6. http://www.tour-eiffel.fr/teiffel/uk/documentation/dossiers/page/peinture.html
7. http://www.tour-eiffel.fr/teiffel/uk/documentation/dossiers/page/invention.html
8. http://cat.inist.fr/?aModele=afficheN&cpsidt=15835046
9. http://www.vaeng.com/news/correct-theory-explaining-the-eiffel-towers-design-revealed
10. http://www.bonjourparis.com/Articles/Destination_Paris/The_Eiffel_Tower__Breaking_News/
11. The Eiffel Tower: Paris' Grande Dame
12. Soirée réussie le 28 novembre pour fêter l'année du 200 millionième visiteur
13. Statement that publishing pictures of the lighting requires a fee
14. In the United States, for example, 17 USC 120(a) explicitly permits the publication of photographs of copyrighted architecture in public spaces. In Germany this is known as ''Panoramafreiheit.
15. http://blog.fastcompany.com/archives/2005/02/02/eiffel_tower_repossessed.html
16. http://en.structurae.de/files/photos/2328/ismaning02.jpg
17. http://www2.odn.ne.jp/yoko—tower/list1—e.htm
18. Disney's official French Pavilion page - lists the Eiffel Tower as approximately 1/10th the height of the original.
19. http://www.dalefield.com/mwes/history/eiffel_tower.html
20. http://www.falconcity.com/
★ Frémy, Dominique, ''Quid de la Tour Eiffel,'' Robert Lafont, Paris (1989) — ''out of print''
Gallery
External links
★ Official website of the Eiffel Tower
★ English version
★ Structurae: Eiffel Tower
★ Mechanical Engineering Magazine: Deconstructing Eiffel
★ Reconstructing the Eiffel Tower in CATIA andy,3DXML file to download and CG Images
★ 3D render of the Eiffel Tower for use in Google Earth
★ The first transmitters at Eiffel Tower
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