Loss 9/11 attacks was a set of four suicide terrorist attacks that occurred in the United States on September 11, 2001. Four commercial airliners traveling to San Francisco and Los Angeles were hijacked mid-flight by Al Qaeda terrorists and crashed into the Twin Towers, the Pentagon and the Capitol. The passengers of the latter plane managed to divert the flight from the intended target, and it eventually crashed in a field near Shanksville, Pennsylvania.
When the first plane crashed, it was estimated that 17,400 people were in the Twin Towers. In the North Tower, no one survived above the impact zone, but in the South Tower 18 people escaped. Currently, approximately 75,000 people have been suffering from illnesses caused by working with toxic debris for weeks.
The original plan was to crash 10 planes. Other targets were the headquarters of the FBI, the CIA, unknown nuclear power plants, and the tallest skyscrapers in Los Angeles and Seattle.
World Trade Center Building 7
Although no plane crashed into the 7 World Trade Center (7 WTC) building, The fall of the Twin Towers caused significant damage to its structure, and the authorities finally decided to destroy it after the attacks. The name refers to two buildings: the original, built in 1987 and demolished after 9/11, and the current building, inaugurated in 2006.
The original 7 WTC was a 47-story building, with a red granite façade and 174 meters high. It was designed by Emery Roth & Sons. In May 2002, the Federal Emergency Management Agency (FEMA) released a report on the collapse that concluded: “The loss of structural integrity is likely the result of fire-induced weakness on floors 5 through 7. th.” details of the WTC 7 fires and how they caused the building to collapse remain unknown at this time.”
The new 7 WTC has a height of 226 meters and 49 floors, with 158,000 square meters for offices. It should be noted that the first ten floors house the electrical substation that supplies energy to most of Lower Manhattan. It is one of the safest skyscrapers in the entire United States.
It has fire-proof stairs and elevator, protected by a reinforced concrete enclosure. In addition, the steel supports are covered with very thick fire protection, and the stairs are wider than in the original building to allow for easy evacuation.
