"no planes on 9/11" thoery

As a preliminary gesture, I'd like to make a disclosure: Not only do I believe that "people in caves" masterminded the attacks on 9/11, I also believe planes hit the Twin Towers. As such, I will be debating your assertion: "I am here to explain how the world was duped into thinking that planes actually hit the towers. " 1) As I'm sure you know, pictures that are composites or those that are digitally altered leave "fingerprints" of the changes made to them (1). This is also true for digital videos - which is the technology most television stations currently use. Now as I'm sure you've researched, the original footage and photos of the 9/11 attack have not in any way been altered. Therefore, the pictures we are seeing are genuine in the sense they depict what people saw on 9/11. This leaves only one other possibility: That the planes were not actually "planes". 2) Addressing the previous issue of "false" planes, it should be rather clear due to both the loss of human life on the planes themselves, as well as the debris found and analyzed, that these were in fact operational human cargo-carrying planes (2). Logically it would follow to assert that not only did planes hit the Twin Towers on 9/11, but also that they were carrying passengers and not explosives. 3) "I think we may all agree that an ALUMINUM plane will not go through a steel building and come out intact. If you can't agree with that go learn your physics. " Planes are actually made out of a aluminum and titanium alloys, but that is irrelevant. The real question here is one of force and momentum. Assume the weight of the plane to be 400,000 pounds (We'll do this exercise assuming it's completely empty just to make a point). Moving at ~550 mph, it exerts a linear momentum of 220000000 (kg x m) / s. Now the surface area of the applied force is the radius of the interior width of the fuselage squared (10^2) times pi, which is equivalent to ~300 ft^2. Distributing this force across the area gives us 700282 kg per square foot. Now using our common sense, we can assume that the greatest width steel used to construct the tower would be 4 inch steel support beams. Furthermore I can guarantee you that no building has been engineered ever to withstand lateral stresses of that magnitude. And if the plane is indeed applying 700000 kg per square foot of pressure, it's going to pierce the building and continue through it. 4) "And believe that fox deleted this shot from there archives, then 6 minutes later cnn showed the same exact shot, with a convenient "unfortunate pop up banner" that blocked the shot, therefore you see no plane. " I would need to see evidence from a reliable source to believe that. 5) "Also did you happen to see how the plane went in the building, it went into that steel structure like butter. Sorry guys but aluminum does not cut steel. " I explained this point in #3, but just to clarify aluminum can be used to cut steel. You need some help on your understanding of mechanics. Conclusion: Just like most 9/11 "truthers", my opponent has based his arguments upon half-formed notions of physics and mechanics. He also believes photo manipulation could not be detected, despite evidence to the contrary. I await his responses to my assertions, especially #3. (1) . http://www.cs.dartmouth.edu... (2) . http://www.popularmechanics.com... (See the part about the Pods)