/sci/ - Science & Math

This part of the building surely took a lot longer to hit the ground as dust than it would have if it came down as larger pieces of material. We know that sheets of paper have a very high surface-area-to-mass ratio and will stay aloft for long periods of time, which is why paper is an excellent material for making toy airplanes. The alert observer will notice that much of the paper is covered with dust, indicating that this dust reached the ground after the paper did. In the above picture, there are a few tire tracks through the dust, but not many, so it was probably taken shortly after one (or both) of the towers were down. Also, the people in the picture look like they've just come out of hiding, curious to see what just happened and to take pictures. If there had been a strong wind blowing the dust around, it would blow the paper away before it would have blown the dust onto the paper. So, the fact that much of the randomly-oriented paper is covered with dust indicates the relative aerodynamic properties of this dust.

In a conventional controlled-demolition, a building's supports are knocked out and the building is broken up as it slams to the ground. In a conventional controlled-demolition, gravity is used to break up the building. Here, it seems that the only use of gravity was to get the dust out of the air.

In conclusion, the explanations of the collapse that have been given by the 9/11 Commission Report and NIST are not physically possible. A new investigation is needed to determine the true cause of what happened to these buildings on September 11, 2001. The destruction of all seven WTC buildings and especially WTC1 and WTC2 may be considered the greatest engineering disaster in the history of the world and deserves a thorough investigation.