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World Trade CenterSkriv ut Utskrift

About the construction process and history of the World Trade Center in New York.

Skrevet i 9. klasse.

Engelsk - ArtikkelForfatter:
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Construction process

The concept of the World Trade centre (WTC) was created by Nelson and David Rockefeller in the 1950s, attempting to revitalize the lower Manhattan. The consept was then forwarded to the Japanese-American architect Minoru Yamasaki who was cooperating with Antonio Brittiochi.

 

They designed what was going to be one of the biggest goals for modern terrorism. The design included 110 floors with 50,000 workers and another 200,000 visitors.

 

When the design was finished they could finally begin start the construction in 1966. The north tower was first finished in 1972 and then the south tower one year later. The WTC became the tallest man made construction on the planet, unseating The Empire State Building from the throne after 40 years of tall comfort. But the Twin Towers would not be seated long because the Sears Tower finished in 1973 with the height of 442 m and the WTC was 417 m.

 

After the various information I've bin collecting i understood that the WTC built an antenna to reign as the tallest building in the USA. But the plan was not to succeed because the Sears tower sniffed the fuse and built an even taller one.

 

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The incidents

 

Fire the 13 February 1975

February 13 i975. There was an fire that was at it's highest 700°, that heat was more intense than the 9/11 attack.

 

The fire began 11:45 P.M. at the 11'nth floor. A porter saw the smoke coming up the air conditioner and sounded the alarm. The fire costed 25 injuries, a lot of hospital bills and 2,000,000 dollars. Fire Commissioner John T. O’Hagan said that the fire would not have bin spread to the 15'nth floor if the sprinklers had bin installed. How the fire started has yet not bin discovered.

 

Bombing 26 of February 1993

February 26 in 1993 Ramzi Yousef planted a Ryder truck filled with approximately 1,500 pounds in the underground parking garage under the north tower. The bomb made a giant hole through 4 sub levels of concrete. The bomb killed 6, but intended to kill approximately 250'000.

Many humans were forced to climb down the pitch black stairways to avoid the flames. After that they placed emergency lighting all over the building who saved many lives in the 9/11 attacks.

 

Hijacked planes crashes in to the WTC the 11 September 2001

11 September 2001 one planes crashed into the north tower 8:46:30 a.m 16 minutes and 29 seconds subsequently another aircraft crashes into the south tower 9:02:59 a.m that crash were broadcasted because the cameras were already fixed on the north tower.

 

2,749 humans died in the attacks and 13 (Or more, in the future) died after injuries they sustained from the attacks. Also here was Ramzi Yousef one of the masterminds which was led by Al Qaeda's leader.




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