911 inside job

IntroductionMy opponent says that I did not explain the collapse but this is false, it is well known that the buildings fell due to progressive collapse. This has been confirmed by NIST with regards to the twin towers[1] and Building 7 (which collapsed due to a buckling of column 39)[2]. People Heard ExplosionsIn my first round I argued that explosions are commonly heard with regards to fires. Since the towers collapsed due to fire; reports of explosions are to be expected. Also, I listed all the explosive contents within the building as well. Pro posts Video 1 to show that fire-fighters said they heard actual bombs. However, I watched the video and they only talked about explosions. My opponent's Video 2 and Video 3 show people hearing explosions in the lobby and basement where there was no fire. However, there was fire. The jet fuel from the plane travelled down the elevator shaft[3] and there was fires in the lobby and basement because of it. With regard to Video 4, the explosions heard before the collapse were most likely due to fire and the explosives in the building. This is the reason explosions are common at building fires. WTC7 Wasn't Hit By A Plane, Why Did It Collapse?My opponent is confused. It is not how much damage is done to a building necessarily, but where the damage is done. even if Building 5 and Building 6 had more damage, the damage to Building 7 effected its core column 39. This explains why Building 7 collapsed when Building 5 and 6 did not. "It is not conspiracy theorists yet thousands of architect and engineers who question the collapse of building 7." - Pro Around 1,500 architects and engineers worldwide have actually signed a petition expressing their support for the theory that the collapse of the World Trade Center was a controlled demolition. Yet according to the U.S Department of Labor, there are 1,700,000 employed architects and engineers in the US alone (and probably 5 -10 times that worldwide). This means that less than 1 in 10,000 of the architects and engineers in the world have expressed any kind of support for this demolition theory. Rational people understand that if only 0.01% of the people in your field of expertise agree with you, then that should be clear indication of a "dud" idea. Validity of the NIST report has been a proven general consensus within the major scientific community. Plus, If you consider the individuals involved in this A&E for 911 Truth movement you will find electrical engineers, software designers, landscapers etc. However, the number with actual relevant expertise and experience to high rise construction must be very small. On the other hand the American Society of Civil Engineers, which supports NIST and whose members contributed, has about 120,000 members. Every developed country has a similar professional body. They also support the findings of NIST."NIST explanation is that fires caused the building to collapse not the debris." - ProThe debris was the necessary cause, but the fire was the sufficient cause. "NIST cannot explain how the building collapses as there computer simulation does not match observed events." - ProShow me a peer-reviewed journal, not a you-tube video. "Witnesses and video evidence of clearly seen explosions seen in building 7 seem to suggest otherwise." - ProWho cares? I already gave the most reasonable explanation for the explosions that don't involve demolition. What Do Explosive Experts Think?"The 'experts' are only commercial controlled demolition experts and in no way are exposed to the type of classified technology that the insiders would have had access to." - ProNanothermite isn't classified technology lol My opponent mentions thermite, but that wouldn't get the job done: "It's (Thermate) like using a lawn mower engine instead of a souped up go kart engine if I want to drive something at a high speed" - Ron Craig (International Society of Explosives Engineers) "Thermate is a guess and a roll of the dice and who knows how it's going towork, so anybody that would calculate that into their plans I think would be really foolish" - Ron Craig (International Society of Explosives Engineers. What About The Thermate/Thermite Supposedly Found? Yes. There was some pure iron, and some Al_2O_3, that indicates there was some micro aluminothermic reactions between rust and aluminum, akin to something like a sparkler. With a lot of gypsum around, there would be ample source for sulfur to lower the ignition temp required. This is somewhat expected in such a situation as an entire floor of an office building burning. there will be spots of peaked temperature due to the combustibles present and ambient heat around the area. The assumption that Iron-rich spheres must come from temperatures capable of melting pure iron is invalid. Normal office fires can cause materials to form into spheracle particles such as iron, zinc, lead ect. Anyway, the Iron wouldn't burn off under those conditions but all the other metals mixed with the Iron probably would, leaving Iron-rich spheres. I can't help but notice the major errors in the theories on 9/11. When it comes to the inside job theories, I just can't take it as truth any longer. In which I feel the only credible argument the conspiracy theorists held was of a mere misunderstanding - the finding of Thermate chemical signatures in the Twin Towers. Steven Jones has done plenty of speeches about this in which he points out the chemical elements found within the debris. These elements pointed out are as such: iron, sulfur, aluminum, potassium, manganese, fluorine, & titanium. Yes, most of these elements can be found in thermate. Jones had this one right. So what's the problem here? Well, like any proper scientist who would conduct studies on these elements, they'd first try & find any natural sources in which these elements could come from. And guess what? They all check out for other natural sources: Sulfur: The third most common ingredient in the WTC construction was gypsum-based drywall, which is 18.62% sulfur. Iron: Used in paint & electronic devices. Potassium: Used in concrete. Manganese: Used in the structural steel, paint, batteries, & ceramics. Fluorine: Used in Freon. 200,000 pounds of Freon cooled the WTC complex. This was the largest air-conditioning system in the country. Titanium: Used in paper & paint & made up 2% of each of the 767's. WTC7 was also clad in polished steel & titanium. Jones claiming these elements were uncommon and only found within thermate is illogical. Could the Twin Towers Have Collapsed The Way They Did?The reason the steel beams flung out was because the pressure from the top half of the building bending them. It would be like taking a rubber pencil, and putting your index finger on one end, and your thumb on the other. If you squeeze it together the right way it will "fling"out. Also, there is no reason not to expect pulverized concrete. Also, the buildings didn't fall at free-fall speed[4].ConclusionMy opponent hasn't presented one good reason to think 911 was an inside job; he has the burden of proof. Sources[1] http://www.nist.gov...[2] http://www.nist.gov...[3] http://www.911myths.com...[4] Videohttp://www.youtube.com...