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La
Tour Eiffel :
1889:
During the evening of the tower's inauguration, 10,000 gas
street lamps adorned the steeple and platforms. Two projectors
on the tower top illuminated the other Parisian monuments
below. The blue, white and red beacon lights were considered
the most powerful in the world.
1900: Electricity arrives at the Eiffel Tower, as 3,200 lamps
spotlight its framework and decorative arches.
1925-1936:
André Citroën adds the first decorative
lighting display to the tower. As an ad campaign, the name
Citroën is sculpted from 250,000 colored lamps, which
adorns three sides of the tower and is visible 30 kilometers
away.
1985, New Year's Eve: Inauguration of a new lighting system,
the final phase of a comprehensive restoration program, initiated
by the city of Paris in 1980. The gold-toned, twinkling lighting
system comprises 352 sodium lamps mounted on the inside of
the tower.
2000, New Year's Day: The Eiffel Tower is adorned in festive
lighting composed of 20,000 spots and a beacon projector on
the tower top.
2001, New Year's Day: For the New Year, blue filters are placed
over the lamps, allowing the sparkling lights to take on blue
sapphire tones.
2001, July 14: The glittering light system is dismantled.
2003, June 21: The Eiffel Tower is once again covered in diamond-sparkling
lights that are displayed for five minutes, every hour on the
hour, from dusk until 2 a.m. (1 a.m. in winter).
The two
light beams at the top of the tower can be seen up to 80km
away. The
beacon is composed of four marine-type, motorized
projectors, operated by automatically piloted computer programs.
Their rotation sweep is 90°, so they are synchronized to
form a double beam in a cross that pivots around 360°.
The 6,000-watt lamps, which last for approximately 1200 hours,
are cooled to prevent overheating and also heated when the
temperatures drop below zero centigrade and the lights are
off.
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