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Αναφορά προβλήματος μετάφρασης
This is a picture I took when they were blasting the old tunnel approach walls to be replaced with a new road bed to secure the tunnel and the placement of new walls on a project I worked on years ago.
that's where you want to look for your answers. who made them mad enough to do that? Wind the clock back. what was happening in the 20 years up to that point. good place to start.
as for the disaster itself: the engineering forensics are quite conclusive and publicly aavailable to all, one can't hide the microscopic patterns on steel. its a fingerprint that can't be faked or changed, or hidden. the same with burn sign, and how boiler plants explode when their freshwater supply is cut off suddenly as the fire trucks pumped the water supplies dry. probably pumped the water out of the toilets too. (most people aren't aware many skyscrapers generate their own power and have large boiler based facilities onsite. big ones.)
i'm not in usa, but if you were in any type of civil engineering field or related, you got the exhaustive discussion read to you in progressive failure analysis conventions and panels that went on for months on the subject, and analysis resulted in better engineered safety controls across the world, and urged aging infrastructure to receive those updates.
as they say, the safety manual is written in blood.
engineering math is difficult though, and i suspect many, have no training in any type of failure analysis, or struggled with math in school, and wouldn't have a prayer of understanding any of it. so it's surrounded by the 'conspiracy' cloud of misinformation that we see happen so often.
Also just an FYI there is an entire organization called "Architects & Engineers for 9/11 Truth" with several thousand members that DO know engineering math and DO still doubt the official explanation. It isn't just uneducated people buying into 9/11 conspiracies, it's anybody with a sense of skepticism.
i'm sure there is.
my take on that is: if they haven't presented anything that can hold water in 20 years, yeah, they aren't that good, or they found out they don't have a case? what's the hold up?
Oh but they did present the evidence and it was ALL ignored. Go do more research.
They have presented things that hold water but:
A) They don't have the reach of a government-run "commission" formed to create the cover story
B) People would rather remain blissfully ignorant or are stubbornly stuck in their beliefs and not willing to change them.
C) It doesn't ultimately change anything because it already happened 20 years ago and the damage is done
Here's a video, in case you were interested:
https://www.youtube.com/watch?v=Ddz2mw2vaEg
Look at the end of that beam/column. Notice it does not show any sort of cutting by a torch or even a shaped charge that would cut it nearly straight the way an explosive would. The flange is at least an inch thick. When said beam broke, it would make a large enough sound to sound like an explosive. Notice how it has been ripped apart.
Most engineers or architects don't come out into the field where I am as a building comes up. In my years as an inspector, I have seen an engineer just 4 times, including having to show them issues with how things cannot go together as designed due to other equipment or structure in the way. Now, just because I don't get to meet them, does not mean that they do not visit, but for the most part, they don't come out to dirty/muddy sites. I don't put much stock into what some of them would say, as well as regular people on the street, fail to realize that steel does not need to melt to fail. A temperature of 1100F would reduce the strength of steel by approximately 50%. A W14x99 will not hold much weight at those temps as compared to a column or beam at room temperature.
Although honestly I kind of half-disregarded your last reply to me because it sounded like a bunch of excuses. Engineers do site visits plenty and, seeing as they literally design the buildings, they have pretty extensive knowledge of how things work. To dismiss the opinion of Structural Engineers with PE licenses (which is not an easy thing to obtain) just because some engineers don't visit sites often is just kind of silly.
And it kind of sounds like you didn't listen to any of the points that the AE911 guys were making, or perhaps didn't entertain the video at all.
Regardless of steel weakening at higher temperatures it is the fact that there were several reports of molten steel and evidence of extremely high temperatures (hot enough to melt the steel) which raises a lot of questions.
https://www.ae911truth.org/evidence/high-temperature-thermitic-reactions