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Interesting. The OP's post seems to be the only one on topic.
Originally posted by Tw0Sides
Why Dont we Put this into some Perspective.
This Charlie fellow has changed his Views on 911, he now believes the Official Story. This ONE Guy.
Now. How many People Daily, are questioning the OS, and want the Truth to Come Out? Bet more than ONE.
Originally posted by SirMike
I accept the NIST report because as an engineer I understand the NIST report.
Originally posted by Sankari
WTC7 was hit by multiple pieces of burning debris from the other buildings, caught fire, and eventually collapsed after burning for many hours.
Originally posted by bigyin
Originally posted by SirMike
Originally posted by Cobaltic1978
Yes, I am no expert, but that's the first building I've ever seen collapse due to fire. Maybe you can explain to a layman the reasons why it collapsed.
Unlike most every other skyscraper which has a frame, the structure of the building was (basically) two concentric tubes. This gave it large open floors with no internal columns in the way. The floors trusses were supported by the walls and center elevator core and the outer and inner core supported each other via the floor trusses.
Take a straw, put some compressive force on it, and it buckles. Support it laterally where it wants to buckle and it can support a much greater load.
With the WTC, the impact of the planes damaged the outer support column and ignited a fire. When an engineered truss is subjected to heat in a nonuniform manner (like an office fire) it will distort, breaking welds and connection points to the outer and inner core. Additionally, when steel meets 1000 degrees F, it loses about 50% of its tensile strength.
So with the WTC we have the following:
Impact, destroying a small but not insignificant portion of the structural columns.
Impact, destroying a larger portion of the engineered trusses designed to laterally support the center core and the outer core columns.
Fire, causing thermal distortion in the engineered trusses and breaking them free from their attachments to the columns.
Fire, causing thermal fatigue in all the columns and trusses.
Once this go to a certain point, we go back to the straw .. too many lateral supports became compromised and the column collapsed.
dear dear dear dear dear dear ....
so what engineering course did you study exactly ?
Originally posted by RomeByFire
ArmChair University.
With a pinch of "Position of Authority" logical fallacies.
That guy is an engineer and so am I.
I said so, therefore, it's true. Matter of fact I'm the smartest engineer in the world.
I said that so it has to be true (no one would ever lie on the Internet).
Originally posted by ANOK
The thing is buildings do not mimic implosion demolition from fire and asymetrical damage.
Originally posted by FriedBabelBroccoli
reply to post by Sankari
Do you really believe that the passports of the hijackers would survive the fireball that was hot enough to bring down the buildings and just so happen to be found hours later in the rubble to be broadcast to the world?
Please, I want an honest answer on this.
Beginning with passports. Four of the hijackers passports have survived in whole or in part.
Two were recovered from the crash site of United Airlines flight 93 in Pennsylvania. These are the passports of Ziad Jarrah and Saeed al Ghamdi.
One belonged to a hijacker on American Airlines flight 11. This is the passport of Satam al Suqami. A passerby picked it up and gave it to a NYPD detective shortly before the World Trade Center towers collapsed.
A fourth passport was recovered from luggage that did not make it from a Portland flight to Boston on to the connecting flight which was American Airlines flight 11. This is the passport of Abdul Aziz al Omari.
Originally posted by TheKeyMaster
reply to post by SirMike
How do we know this hate spewed at him was legit and not part of a movement to discredit "truthers" that has been going on all along?
Originally posted by Sankari
Originally posted by ANOK
The thing is buildings do not mimic implosion demolition from fire and asymetrical damage.
Watch this video.
Then this one.
edit on 30/5/13 by Sankari because: added url...