Collapse of the twin towers in 2001. An engineering perspective

[Armour of God]

This is an engineering perspective of how the twin towers collapsed in 2001.

At the time I was in my 20s, studying engineering at university. From a physics standpoint, we (my class mates, teachers and i) couldn't believe how quickly those buildings collapsed.

They fell at the acceleration of gravity. If you dropped a hammer from the same height it would of landed at the same time the top of the building did.

This is impossible. There should of been a resistance below the airplane impact point that would have decelerated the collapse. Instead it accelerated at the same rate as gravity.

According to the laws of physics, the only possible way those buildings could of collapsed like that was if there was nothing holding it up. But obviously the building itself was holding it up.

So then how did they fall so fast.

We concluded, from a physics and engineering standpoint, that it was impossible for the plane damage to bring down the towers that way. Their had to have been demolition charges throughout the buildings core for it to fall that fast. And if you look at the destruction of a building using demo charges, it falls exactly the same way.

Without charges the top of the building may have crushed the levels that were damaged by the plane but would never have destroyed the whole building. At the very least there should of been a deceleration, leaving the lower levels in tact.

Then there was a smaller building, named building 7, that wasn't hit by the airplanes and still collapsed in the same fashion. Its unexplainable without demo charges.

At the time we were all convinced that the Americans would conclude the same thing after an investigation. We thought that the terrosrists must of planted demo charges throughout the buildings.
But much to our surprise the investigation maintained that the planes alone caused the collapse which perplexes me still to this day.

It's important to note that this isn't my own personal conclusion. This event was heavily discussed by our whole class and teachers and the conclusion came about by everyone, uninfluenced by any mainstream explanations that came about later on.

 

[shepherdsword]

Yeah, building 7 sealed it for me. No matter what excuses they used for the collapse of the main towers it doesn't wash for B7

 

[Jay Ross]

This is an engineering perspective of how the twin towers collapsed in 2001.

The post above, is not an engineering explanation of the mechanism of how the twin towers collapsed. It can be explained quite easily using engineering theory and even explaining the explosive type sounds that were heard as each floor pancaked downwards.

I have previously provided an explanation of how the buildings collapsed and my position and understanding of how and why the buildings collapsed.

I was awarded an Engineering Bachelor Degree in Mechanical Engineering in 1987.

When each floor began to fall, there was a momentary resistance as the bolts sheared in resistance to the imposed kinetic energy placed on all the horizonal bolts holding the floor steelwork in place.

The collapsing of both towers happened just under the rate of the gravitational acceleration.

The collapsing of the towers began initially after the bolted sections of the structure was heated to a temperature were plastic deformation could begin. Each floor below failed because the energy of the falling floors above exceeded the energy for the bolts to resist the shearing energy for all of the bolts.

As the floors pancaked the energy of the falling floors increased which accelerated the rate at which the bolts were sheared.

I trust that this simple explanation will help you to understand how the towers collapsed. Remember the critical factor in causing the towers to collapse was the onboard fuel available to heat the floor bolts so that initially plastic deformation could occur for the first failure of the bolted connect for that floor.

Shalom

PS: - Peoples ignorance on the engineering principles of the collapsing buildings does not help at all.

 

[wordandlight]

Interesting perspective. I think this is one of those subjects where it’s important to separate what looks intuitive from what the structural evidence actually shows. Definitely a topic worth examining carefully.

 

[Armour of God]

The post above, is not an engineering explanation of the mechanism of how the twin towers collapsed. It can be explained quite easily using engineering theory and even explaining the explosive type sounds that were heard as each floor pancaked downwards.

I have previously provided an explanation of how the buildings collapsed and my position and understanding of how and why the buildings collapsed.

I was awarded an Engineering Bachelor Degree in Mechanical Engineering in 1987.

When each floor began to fall, there was a momentary resistance as the bolts sheared in resistance to the imposed kinetic energy placed on all the horizonal bolts holding the floor steelwork in place.

The collapsing of both towers happened just under the rate of the gravitational acceleration.

The collapsing of the towers began initially after the bolted sections of the structure was heated to a temperature were plastic deformation could begin. Each floor below failed because the energy of the falling floors above exceeded the energy for the bolts to resist the shearing energy for all of the bolts.

As the floors pancaked the energy of the falling floors increased which accelerated the rate at which the bolts were sheared.

I trust that this simple explanation will help you to understand how the towers collapsed. Remember the critical factor in causing the towers to collapse was the onboard fuel available to heat the floor bolts so that initially plastic deformation could occur for the first failure of the bolted connect for that floor.

Shalom

PS: - Peoples ignorance on the engineering principles of the collapsing buildings does not help at all.

I'm a mechanical engineer. My class mates and even my teachers at the time discussed it at length and came to the same unanimous conclusion. Before any of us could be influenced by mainstream ideas.

My teachers weren't at all ignorant, as your slanderous attack suggests, they were very well educated. That's why they were teachers.

Your explanation is not based on engineering or physics. Your personal opinion is only based on the mainstream excuses they have given about bolts shearing. It's not anything you have objectively thought through yourself like we did in class with our teachers.

There is no way those buildings could free fall.

Bolts on the levels below were not effected by heat and would not all shear so easily. If all the bolts on the levels below were shearing there should have at least been resistance and considerable deceleration. But we didn't see that. We saw gravitational acceleration. No resistance at all. It wasn't just bolts that sheared, it was whole colums.

That's simply not possible.
It defies the laws of physics.

And no, the energy of the top floors falling is not enough to provide a free fall. We calculated all that. It's weight would not even be close enough to shear colums as if they weren't even there. There should still be resistance and considerable deceleration. Small scale demonstrations have not been able to replicate the way they collapsed.

Look closely and puffs of smoke can be seen going off in sequence down the building from the demo charges. Shearing bolts don't create puffs of smoke. Whole colums were found sheared, not just bolts. And thermite was found everywhere from the demo charges.

That mainstream explanation is flawed. It doesn't explain the collapse of the twin towers or of building 7 either. It's just an explanation to fool the average person

At the end of the day you have your own personal opinion. Its just a repeat of the mainstream explanation. Nothing that you objectively thought through yourself by using any kind of engineering or physics or calculations.

Mine is the opinion of a whole class and engineering teachers and was examined, calculated, discussed and concluded before any mainstream explanation came about.

Your personal attack of us all being ignorant is just you resorting to slander.

 

[Armour of God]

Here's some damning evidence

No building fire has ever resulted in such a collapse. EVER. And their have been countless building fires around the world

 

[Armour of God]

A comparison of a controlled demo of a building compared to the collapse of the twin towers

Very much the same. A free fall

This next one looks more like the way building 7 went down with the bottom floors giving way first and the rest falling on top of it.

 

[Wrangler]

The post above, is not an engineering explanation of the mechanism of how the twin towers collapsed.

I was awarded an Engineering Bachelor Degree in Mechanical Engineering in 1987.

When each floor began to fall, there was a momentary resistance as the bolts sheared in resistance to the imposed kinetic energy placed on all the horizonal bolts holding the floor steelwork in place.

@Jay Ross, it’s sad to see you discredit yourself like this. Do you expect people to believe sky scrapers are designed to be held up only by bolts? A degreed mechanical engineer cannot come up with a more structurally sound lattice? Come on now!

 

[shepherdsword]

The post above, is not an engineering explanation of the mechanism of how the twin towers collapsed. It can be explained quite easily using engineering theory and even explaining the explosive type sounds that were heard as each floor pancaked downwards.

I have previously provided an explanation of how the buildings collapsed and my position and understanding of how and why the buildings collapsed.

I was awarded an Engineering Bachelor Degree in Mechanical Engineering in 1987.

When each floor began to fall, there was a momentary resistance as the bolts sheared in resistance to the imposed kinetic energy placed on all the horizonal bolts holding the floor steelwork in place.

The collapsing of both towers happened just under the rate of the gravitational acceleration.

The collapsing of the towers began initially after the bolted sections of the structure was heated to a temperature were plastic deformation could begin. Each floor below failed because the energy of the falling floors above exceeded the energy for the bolts to resist the shearing energy for all of the bolts.

As the floors pancaked the energy of the falling floors increased which accelerated the rate at which the bolts were sheared.

I trust that this simple explanation will help you to understand how the towers collapsed. Remember the critical factor in causing the towers to collapse was the onboard fuel available to heat the floor bolts so that initially plastic deformation could occur for the first failure of the bolted connect for that floor.

Shalom

PS: - Peoples ignorance on the engineering principles of the collapsing buildings does not help at all.

and Building 7?

 

[amigo de christo]

Here's some damning evidence

No building fire has ever resulted in such a collapse. EVER. And their have been countless building fires around the world

Years ago when i watched this on tv , i knew it had to be a controlled collapse .
You would think they had been smart enough to lie and tell the people
we did do this so as it would come down safely . Yet i guess that never crossed their brain .
But that was for sure a controlled collapse .

 

[JimKnox]

@Jay Ross, it’s sad to see you discredit yourself like this. Do you expect people to believe sky scrapers are designed to be held up only by bolts? A degreed mechanical engineer cannot come up with a more structurally sound lattice? Come on now!

The above post demonstrates the ignorance of people who never built a doghouse let alone a commercial building.

 

[amigo de christo]

and Building 7?

You wanna know what i have learned over the years .
When something strongly dont seem right , its cause it probably aint .
That was a controlled collapse .
And as high as those planes hit that building
Why did it go straight down like that . At the very least
had it gave way and it probably could have it would not have fallen like that .
EVERY TIME i watched a planned deomolition IT FELL JUST LIKE those buildings did . JUST LIKE IT .
Me thinks when one is guilty of something they dont think as clear and are more panicked
and dont see the simple things . THEY COULD easily have said
HEY we are going to demo these so they can come down safely .
But as i said when one does or allows something to occur
THEY OFTEN have a real scared feeling they might get caught and they DO NOT
think as clearly but rather fear runs and controls their minds . THEY probably had so much fear
THEY tho ught if they said this THEY WOULD SEEM guilty .
And yet if they had said We are going to have to demo these
to bring them down safely , AMERICA WOULD HAVE BOUGHT IT .
But the minds behind this might have feared so much about what was allowed to be done
THEY JUST were NOT thinking clearly . A guilty conscious can make one think VERY ODD and not too wisely .
BUT THOSE BUILDINGS collapsed JUST LIKE A DEMO do .
AND THAT Is why when workers DEMO , THEY DO THAT , SO IT CAN COME DOWN safely.
Som ething IS NOT RIGHT . And my question to us all is
WHY on earth was THIS NOT AT THE VERY LEAST questioned .
BUT THEN again I know the why .
THEY CONTROL MEDIA . and MEDIA says whatever its told too .
JUST LIKE IT DID with covid . SO many folks who even tried to ask questions
about the vaccine . ALL OF A SUDDEN MEDIA and etc SILENCED VOICES and it as like ASK NOT
JUST DO . something is v ery wrong .

 

[amigo de christo]

and Building 7?

look at how many bought the m is and dis info media pumped out .
THINK ABOUT THAT .
You got an experimental shot
AND ALL of a sudden anyone who questions it , VOICE SHUT OUT .
SOmething aint right and i dont th ink its been right FOR A LONG TIME .
I THINK
The elites have a very well planned out agenda .
And i think they do control media .
I always notice a pit and divide
I always notice a false solution
IT is as if they are running a dog and pony show that keeps the people divided enough
to ONLY focus on the other side
and the other side does the same .
AND YET if one only backed away from both sides
and simply had watched
THEY HAD SEEN SOMETHING . OH they had seen somethin very very clear .
RIGHT HAND LEFT HAND . WE are all BEING groomed , we are all being lied too
and we are all being brought into the same SOLUTION
OF THESE ELITES for world peace n safety .
THAT IS A FACT . no wonder w hy GOD said cursed is the man whose hopes b e in man .
cause neither side can see THEY GETTING PLAYED by the same FIDDLER .

 

[amigo de christo]

and Building 7?

How does one take control of the entire world .
When so many differing sides , different relgoins
and all believing differently .
HOW .
REAL SIMPLE and it does take some time .
YOU INFILTRATE every thing . YOU also keep a pit and divide going on
so as they always focused on the other side .
YOU dont only infiltrate politics media , BUT YOU MUST infiltrate ALSO every religoin .
YOU have to make truth NOT ABSOLUTE but as liguid .
THEN over time you form the liquid to fit THE AGENDA . and it becomes THE ABOSLUTE TRUTH .
THEY DID THIS . this is n ot something coming
THIS HAS BEEN DONE FOR YEARS . bridge builders , breaking down walls
ALL OF IT was removing KEY DOCTRINES under the guise of love .
Forming a religoin that ALL RELIGOINS would see as love and believe is of GOD .
BINGO bud . THEY DID IT .
You see , YOU INFILTRATE . and w hile you keep them pitted and divided
BOTH sides also keep pumping slowly the same solution in ways that each side , each relgion
can see . TO a christain , for example
it came as a christain
and to a buddist
to a muslim the same .
JUST as it did . Now the devil is the one that did this and he used men greedy for power and control
TO GET this done . THIS was all about
ONE THING . prepare a world to be as one under what it thinks is LOVE , and its religoins think is love and GOD .
IT HAS RIPENED NOW . they are ready for WHO this world was being prepared for
and that is , THE BEAST WHO BY MEANS of AI , WILL HAVE ALL POWER over the n ations . OH yeah we all got lied too .
But thanks be to GOD this wee sheep did not BUY INTO th eir lies and schemes . CAUSE
as i wrote earlier , M Y HOPE be not in man , in politics , BuT IN GOD . and cursed is the man whose hope was in man
but b lessed is the man WHOSE HOPE bE IN GOD . JESUS has his sheep .

 

[Jericho]

The biggest objection I have with this is the logistical complexities that would be involved in such an operation. The preparation alone would be extensive. You would need dozens, if not hundreds, of workers setting up equipment, laying cables, and removing or modifying structural elements for possibly months ahead of time. There would be equipment lying around, noises, and people going in and out of restricted areas of the building. How would anyone possibly not notice that was going on? Then how would you guarantee that those involved never talked about it? Those are obstacles that are too big for me to accept.

 

[amigo de christo]

The biggest objection I have with this is the logistical complexities that would be involved in such an operation. The preparation alone would be extensive. You would need dozens, if not hundreds, of workers setting up equipment, laying cables, and removing or modifying structural elements for possibly months ahead of time. There would be equipment lying around, noises, and people going in and out of restricted areas of the building. How would anyone possibly not notice that was going on? Then how would you guarantee that those involved never talked about it? Those are obstacles that are too big for me to accept.

both sides have valid arguments . But this could be done my friend .
Does every floor not have a ventilation shaft . oh its possible they could have had it in place .
But that i do not know . What i do know is I have seen a few demos over the years
and them buildings came down identical to IT .
Oh my . Oh my goodness . I just had a thought
MAYBE THIS IS WHY they never said to americans that WE are going to bring them down safely .
cause as you just said it would have taken some time .
BUT and this is a big butt too .
IF this was pre planned , NO WONDER they said nothing . i mean how could anyone explain
HOW quickly them buildings DID come down
WHEN as you said IT WOULD have taken time to set that up .
What IF this was pre planned . what if the govts knew , well special parts of the govt anyway , not all of the govt .
Either way , THEM BUILDIN GS WERE DEMOED . SO now YOU NEED to ask yourself
HOW is that possible . IF THEY H AD NO Idea THIS WAS COMING .
This might be worse than i thought . AT least THINK .
Cause i seen a lot of folks WHO DID NOT THINK when it came to the vaccine .
WHY were they so fast to silence the voices . WHY were they so fast to label anything
that did not go with TH EIR FLOW as being MIS and DIS INFO .
THAT YOU REALLY DO NEED TO THINK ABOUT .

 

[amigo de christo]

and Building 7?

One way or another SOMETHING is dead wrong .
From what i just read from another one named jericho , THIS might be worse than i thought .
IF , for instance IT DOES take a lot of time to set up that demo
THEN now i think I KNOW WHY they said nothing .
But either way THEM BUILDINGS came DOWN like A DEMO . IDENTICAL TO A DEMO .
And i think jericho , NOT MEANING TOO , just showed me the answer .
Cause it really would take some time to set up that demo .
I dont know how long . you might know more on that .
BUT it would explain the WHY they said NOTHING about we are bringing these b uildings down safely .
I mean IF it does take a while
THEN HOW on earth would they be able to explain and say HEY we just demoed them .
AND YET THEY CAME DOWN IDENTICAL TO A DEMO . wh at if this really was pre planned .
What if some already knew . The reason i lean more on this
IS DUE TO THE FACT them buildings F ELL LIKE A DEMO and that IS A FACT . what if they knew this was coming
all along and ALLOWED IT . for the purpose of bringing on a war against terror
THAT WOULD NOT have an end , BUT WOULD ALLOW such power to be given
over the people .