Eiffel Tower during 1889 Exposition |
The Eiffel
Tower was built for the International Exhibition of Paris of 1889 commemorating
the centenary of the French Revolution. The Prince of Wales, later King
Edward VII of England, opened the tower. Of the 700 proposals
submitted in a design competition, Gustave Eiffel's was unanimously
chosen. However it was not accepted by all at first, and a petition of 300
names - including those of Maupassant, Emile Zola, Charles Garnier (architect
of the Opéra Garnier), and Dumas the Younger - protested its construction.
At 300 meters (320.75 m including antenna), and 7,000 tons, it
was the world's tallest building until 1930. Other statistics
include:
- 2.5 million rivets
- 300 steel workers, and 2 years (1887-1889) to construct it.
- Sway of at most 12 cm in high winds.
- Height varies up to 15 cm depending on temperature.
- 15,000 iron pieces (excluding rivets). 40 tons of paint. 1652 steps to the top.
In 1889, Gustave Eiffel began
to fit the peak of the tower as an observation station to measure the speed of
wind. He also encouraged several scientific experiments including Foucault's
giant pendulum, a mercury barometer and the first experiment of radio
transmission. In1898, Eugene Ducretet at the Pantheon, received signals
from the tower.
After Gustave Eiffel experiments in the
field of meterology, he begun to look at the effects of wind and air
resistance, the science that would later be termed aerodynamics, which has
become a large part of both military and commercial aviation as well as rocket
technology. Gustave Eiffel imagined an automatic device
sliding along a cable that was stretched between the ground and the second
floor of the Eiffel Tower. (reference)
The tower was almost torn down in 1909, but was
saved because of its antenna used both for military and other purposes, and the
city let it stand after the permit expired. When the tower played an important
role in capturing the infamous spy Mata Hari during World
War I, it gained such importance to the French people that there was no
more thought of demolishing it.- used for telegraphy at that time.
From 1910 and on the Eiffel Tower became
part of the International Time Service. French radio (since 1918),
and French television (since 1957) have also made use of its
stature.
During its lifetime, the Eiffel Tower has also
witnessed a few strange scenes, including being scaled by a mountaineer
in 1954, and parachuted off of in 1984 by two
Englishmen. In 1923 a journalist rode a bicycle down from the
first level. Some accounts say he rode down the stairs, other accounts suggest
the exterior of one of the tower's four legs which slope outward. (reference)
Of the 7.5 million kilowatt hours of
electricity used annually, 580 thousand are used exclusively to illuminate the
tower. The tower's annual operation also requires the use of 2 tons of paper
for tickets, 4 tons of rag or paper wipes, 10,000 applications of detergents,
400 liters of metal cleansers and 25,000 garbage bags. (reference)
On the four facades of the tower, the 72 surnames of leading
turn-of-the-century French scientists and engineers are engraved in
recognition of their contributions to science. This engraving was over painted
at the beginning of the 20th century and restored in1986-1987 by
the Société Nouvelle d' Exploitation de la Tour Eiffel, a company contracted to
operate business related to the Tower.
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