7 Wonders of Modern World
1. Channel Tunnel
2. CN Tower
3. The Empire State Building
4. The Golden Bridge
5. The Itaipu
6. Panama Canal
7. Netherland North Sea Protection Works.
1. Channel Tunnel
In
1802 a French mining engineer named Albert Mathieu had a wonderful
idea. After years of war between France and England the two European
powers were finally at peace. Suppose one took advantage of this
reconciliation to forge a permanent tie involving the two nations? Not
just an effort to create goodwill between the two, longtime rivals, but a
project that would physically link the two countries together.
Something that would give them a way to move people and goods across the
20 miles of water of the English Channel without relying on the small,
erratic ferries that made passengers seasick as they were knocked about
by the unpredictable waves.What if one connected the two great nations
together using an underground tunnel?
Mathieu
presented his idea to the then current ruler of France, Napoleon.
Unfortunately for Mathieu the "Peace of Amiens" lasted only a year and
his idea was soon forgotten, but only after being ridiculed by the
British Press in a cartoon showing French troops invading England via
balloons and a tunnel.
2. CN Tower
In the 1960's
the city of Toronto, Canada, was in a building boom. The town, which
had consisted for many years as mostly smaller buildings, was erecting a
number of new skyscrapers which rose towards the heavens. While this
made the skyline of the city exciting to look at, it also caused some
problems, too. The new, tall buildings blocked TV and radio
communications as well as the microwave transmissions used to move data
between many businesses. To resolve this problem the Canadian National
Railway (CN) decided to build a communications tower tall enough so that
any radio or TV communications from it would not be obstructed by other
high-rise buildings in the city.
The
tower would also serve as a hub for microwave transmissions, allowing
two businesses that were not visible to each other to exchange data by
having the tower retransmit it. The project officially got underway in
1972. During the planning stage it was decided to add an observation
deck. Engineers soon realized that with some fairly minor changes to the
project, the structure could be turned into the tallest tower in the
world.
3. The Empire State Building
The
beginning of the 20th century was marked by a boom of building activity
in the city of New York. Buildings were constructed and then demolished
only a few years later to make room for larger buildings. Companies
vied for the honor of having their name on the tallest building in not
only the city, but the world. The skyline of the metropolis became its
pride, crowned with an array of skyscrapers, each one different than the
one before it.
In
their race to have their name on the tallest building, developers would
even resort to trickery. In 1930 the Bank of Manhattan skyscraper was
completed. It stood 135 feet taller than the older Woolworth building
and two feet higher than the planned height of a rival project, the
Chrysler Building, which was still under construction. The architect of
the Chrysler building, William Van Alen, however, had a 185 foot-long
spire secretly assembled inside the building. At the end of construction
on October 23, 1929, the spire was hoisted into place and in only 90
minutes the Chrysler building usurped the Bank of Manhattan for the
title of tallest building in the world.
4. The Golden Bridge
The
strait that connects the Pacific Ocean with the San Francisco Bay is
one of the most unforgiving stretches of water in the world. It is 6,700
ft (2,042 m) wide and in the center 500 ft (150 m) deep. Because of the
tides moving in and out of the bay the water is subject to strong,
swirling currents. Sometimes as the air is forced between the high hills
on either side (which is called the "gate"), heavy, gusting winds
result that can move as fast as 75 miles per hour. When the wind drops,
the area is also often shrouded in heavy fog with near zero visibility.
In 1916, because of these factors, San Francisco's city engineer,
Michael M. O'Shaughnessy, estimated that a bridge to span the strait
would cost $100 million to construct, an incredible amount of money for
that period of time.
5. The Itaipu
In
the 1960's the governments of Brazil and Paraguay saw a way of working
together on a project that used one of their shared resources to support
the expanding electrical needs of their countries. This resource was
the Paraná River, the seventh largest in the world, which formed a
natural border between the two nations. The project was a massive dam
that would harness the river's energy and turn it into electrical power.
On
July 22, 1966, the Brazilian and Paraguayan Ministers of Foreign
Affairs signed a document agreeing to explore the possibility of
building a dam and an associated hydroelectric plant. It wasn't until
February 1971, however, that the work actually started. Once
construction was underway, there were still legal considerations to be
handled. In particular, the country of Argentina, only a few miles south
of the dam site, was concerned that in times of conflict the dam could
be used as a weapon. If all the gates were opened, a rush of water could
be created that would flood the Argentine capital of Buenos Aires. To
quell these concerns the three nations entered an agreement in October
of 1979 on the amount of water that could be released at any time from
the dam.
6. Panama Canal
Charles
the 5th, the Holy Roman Emperor and King of Spain, had a problem. A few
years before in 1532 Francisco Pizarro, a Spanish conquistador, had
defeated and captured the Inca Empire in Peru. The mines of that country
were now producing a wealth in silver to be sent back to Spain, but the
trip required ships to travel thousands of miles all the way around the
tip of South America before they could make their way eastward across
the Atlantic Ocean to Europe. The king pondered if perhaps there wasn't a
better way.
In
1513 Vasco Nuñez de Balboa had discovered that in Central America there
was just a narrow strip of land, not much more than 50 miles (80km)
wide, separating the Atlantic from the Pacific Ocean. Suppose a canal
could be dug through that strip of land? It would not only shorten the
trip from Peru for the Spanish vessels, it would give Spain a tactical
military advantage against its rival in the new world, Portugal.
Though
the distance was only fifty miles it was one of the most difficult
landscapes imaginable to work in combining dense jungles with steep
mountains. King Charles ordered the Panama regional governor to survey
the area for a canal following the route of the Chagres River. The
governor came to the conclusion, however, that building such a
passageway through the rugged terrain would be impossible.
7. Netherland North Sea Protection Works.
When
people think of the Netherlands two things often come to mind: Tulips
and windmills. Both of these have been symbols of this European country
for centuries. The tulip was introduced from Asia in the 17th century
and has been a source of income for Dutch farmers ever since. The
windmills date from the 1400's and though they are picturesque, they are
actually symbols of a serious life and death struggle that has raged in
the Netherlands for years: The Dutch people and their land against the
sea.
The
most recent of these battles took place in the 20th century when the
Dutch engaged in two massive projects to enlarge and secure their land
against the ocean. The Zuiderzee Works and the Delta Works took most of
the century to complete and together are considered one of the Seven Wonders of the Modern World.
Love,
The Dazzling Ladybie
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