Much of the case for "controlled demolition" of the WTC Twin Towers (although, curiously, not of WTC 7) rests on the fact that many witnesses reported hearing and seeing secondary explosions after the planes hit. I've never been surprised in the least by these reports. Why wouldn't there be secondary explosions, and things that sound like explosions or bombs, in a disaster of that type and magnitude in buildings of that type and magnitude? I have yet to hear from a CTist why that's surprising.
One thing we often don't know is exactly when and where those explosions were heard, and this video certainly makes no effort to clarify that. For instance, how many people, in both towers, heard (but didn't see) flight 175 hit the south tower and reported that as a big secondary explosion? How many people were reporting the same event, but when those reports are listed, it looks like many events? We don't know.
And how many of these explosions were electrical systems shorting, transformers and switchgear blowing, generators failing, steam pipes bursting, flaming debris and steel beams falling down elevator shafts, etc. Several reports call the sound of the actual collapse of tower 2 a "huge explosion."
Electrical explosions do happen in skyscrapers:
Electrical Fire Hurts 6 at Trade CenterAn air-conditioning transformer five stories below the World Trade Center caught fire after an explosion last night, the authorities said. Six people were injured, none of them seriously, but the 110-story twin towers did not have to be evacuated, the authorities said. The fire was first reported at 10:02 P.M. in a 13,000-volt transformer in the Trade Center's refrigeration plant, which provides air conditioning and ventilation for the complex, the Fire Department and the Port Authority said. The electrical fire, which went to three alarms, was brought under control at 11:24 P.M., said a Fire Department official, Lieutenant Erick Weekes. NEW YORK TIMES July 24, 1992
Remarks on the 1993 World Trade Center Bombing by Fire Chief Donald J. Burns"Usually, a report of an explosion in a high-rise indicates an electrical problem such as a large short or a transformer explosion. "
Video of a transformer explosion. What the various explosions reported would have to do with CD,
I don't know. When you demolish a building with explosives, you set the charges to go off in a precise order at demolition time, not in a random fashion for nearly an hour. Some CTists have suggested that bombs were placed at different locations within the building. I have yet to hear a plausible explanation for why that would be. Large bombs would really mess up your carefully-prepared controlled demolition. What's more, no one I know of has come up with any plausible explanation of how this massive amount of CD work could have been accomplished.
So,
before we get back to the video, I'd like to propose a little thought experiment to the conspiracy believers. I've asked this before but no one has ever answered. Please describe, in as much detail as possible, what you would EXPECT to hear and see after a fully-loaded airliner hit a skyscraper at top speed, causing enormous damage, and the building caught fire to the point of collapse?
And when a billion-pound building does start to collapse, what would you EXPECT to see and hear at the lower levels?
Because in order to be surprised by what did happen, you must have some expectation of what SHOULD have happened. So I'd like you to stop and think about that. More than that, I'd like to HEAR what you have to say on the matter.
And if you can't come up with an answer, then please talk to the experts: structural engineers, fire safety engineers, and failure analysts. Does it bother you that none of them agree with you?
Once I was driving on the highway and an 18-wheeler blew a tire as it pulled alongside me on the left. The tire was just a few feet from my window. I described it as "like a cannon going off in my ear." But no cannon went off in my ear. I was using a common simile to describe a dramatic event. Please keep that in mind throughout this section.
Please keep in mind that I'm not disputing what witnesses say they saw and heard. I'm just suggesting that there are many plausible explanations for those phenomena that don't involve implausible bombs.