World trade centre collapse, 9/11 conspiracy

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Never! Did you really roll on the floor and laugh too? Wow, that must have made you laugh huh? Did your rear end drop off too and you missed off the "MAO" bit?

People who think the potential energy of a 1360 ft skyscraper is unimportant when it supposedly could collapse straight down due to aircraft impact and fire are truly impressive.

False conclusion - build your strawman. I think your claims about it are unimportant - so does everyone else.

Especially considering that the PE cannot be computed without distribution of steel data.

Never mind, I'm sure there's some good stuff you can watch on the telly? Try letting go of this now, there's a good chap - it's been a while now and nobody wants to talk to Mr. Vague on "Vague duty".

Truly intelligent for a SCIENTIFIC Forum!

Horse water drink.

And then you can't notice the error in my post about potential energy. I was looking for a response. The height of the blocks should not have been numbered 1 2 3 4 5 6 7. It should have been 0 1 2 3 4 5 6. The block at the bottom could not fall. That does not change the point though.

Wait, what! Number 1 should be 0? Well why the hell didn't you say that before, call everyone back!

No scientific analysis has been done without distribution of mass data, which would also make it possible to locate the center of gravity of the tilted top of the South Tower.

Ah well. Go and get yourself a nice sandwich and a cup of tea or something. People have had enough of you circling the wagons with a Nerf gun. It's been a while. Twenty years. Move on.
 
I'm just happy I only know one person irl that might think psikey is on to something, and that guy usually gets pissed off when I debunk his shitty takes on the world.
 
People who think the potential energy of a 1360 ft skyscraper is unimportant
I calculated it for you. You immediately rejected it, since it contained math.

People who can't do even basic math aren't generally taken seriously on science forums.
 
Never! Did you really roll on the floor and laugh too? Wow, that must have made you laugh huh? Did your rear end drop off too and you missed off the "MAO" bit?



False conclusion - build your strawman. I think your claims about it are unimportant - so does everyone else.



Never mind, I'm sure there's some good stuff you can watch on the telly? Try letting go of this now, there's a good chap - it's been a while now and nobody wants to talk to Mr. Vague on "Vague duty".



Horse water drink.



Wait, what! Number 1 should be 0? Well why the hell didn't you say that before, call everyone back!



Ah well. Go and get yourself a nice sandwich and a cup of tea or something. People have had enough of you circling the wagons with a Nerf gun. It's been a while. Twenty years. Move on.

Sure, that is why Scientific American mentions Potential Energy.

When released, the accumulated potential energy is converted to kinetic energy. With a mass of about 500,000 tons (5 x 108 kilograms), a height of about 1,350 ft. (411 meters), and the acceleration of gravity at 9.8 meters per second 2, he came up with a potential energy total of 1019 ergs (1012 Joules or 278 Megawatt-hours). "That's about 1 percent of the energy released by a small atomic bomb," he noted.

https://www.scientificamerican.com/article/when-the-twin-towers-fell/

Any calculation assuming uniform mass distribution is incorrect and unscientific.

Bazant and MIT dish out the same BS.
 
Sure, that is why Scientific American mentions Potential Energy.

No, really? They mention it? Wow.

Any calculation assuming uniform mass distribution is incorrect and unscientific.

Righto, what do you want to do about it then?

Bazant and MIT dish out the same BS.

Go and find another hobby or make a case. I'm guessing you haven't got long here because you keep avoiding the OP and fail to say anything relating to what you think better explains things. It's all so very odd.
 
https://byjus.com/physics/potential-energy/

So YOU and Scientific American can't figure out the variations in mass and heights of the different levels of a 1360 ft skyscraper would significantly reduce the potential energy.

This is amazing stuff, tell me more, much more. Like urinate or get off the damn pot!

1. Are you claiming some sort of explosive assistance for the collapses? Fully elaborate with evidence.
2. Are you claiming anything unseen? Fully elaborate with evidence.
3. Is your TV not good enough, have you not got any worthwhile hobbies?
 
psikeyhackr has been obsessing about this for 20 years now, apparently. But, as yet, he doesn't have any of his own ideas about what actually happened, if we are to believe him. All he has managed to work out so far is that there's something wrong with the "official" explanation. Apparently, qualified engineers and scientists can't do basic physics - that much seems clear. Beyond that, who knows? He's taken 20 years just to get this far. Give him a break!

You know how it is. When you're laser focussed on showing how other people are wrong, there just isn't time left to do any work on what's right. It's exhausting. You need to be as dedicated as psikeyhackr to stick at it for 20 years, when the whole world is against you (apart from nutty conspiracy theorists who aren't the structural engineering/physics expert that psikeyhackr so obviously is).
 
psikeyhackr has been obsessing about this for 20 years now, apparently. But, as yet, he doesn't have any of his own ideas about what actually happened, if we are to believe him. All he has managed to work out so far is that there's something wrong with the "official" explanation. Apparently, qualified engineers and scientists can't do basic physics - that much seems clear.
Neither can he, apparently. He can't do basic energy calculations, can't run simulations, and can't even explain where the problem is in other people's calculations.

I have to wonder if his time would not be better spent learning physics, as opposed to making 1100 posts demonstrating that he does not understand physics.
 
So YOU and Scientific American can't figure out the variations in mass and heights of the different levels of a 1360 ft skyscraper would significantly reduce the potential energy.
All of us can. I did that exact calculation for you several pages ago. You didn't understand it.
 
Sure, that is why Scientific American mentions Potential Energy.

When released, the accumulated potential energy is converted to kinetic energy. With a mass of about 500,000 tons (5 x 108 kilograms), a height of about 1,350 ft. (411 meters), and the acceleration of gravity at 9.8 meters per second 2, he came up with a potential energy total of 1019 ergs (1012 Joules or 278 Megawatt-hours). "That's about 1 percent of the energy released by a small atomic bomb," he noted.

https://www.scientificamerican.com/article/when-the-twin-towers-fell/

Any calculation assuming uniform mass distribution is incorrect and unscientific.

Bazant and MIT dish out the same BS.


you do relise bin-laden was schooled in industrial engineering supposedly
& had done all his own figures
the planes were flown with precision
the hijackers had lots of practice
& the us engineers agreed they had miscalculated the strength on multi piece short length steel framing
which would have reduced strength of mass sheer
it probably loads as it falls
which gives it an INCREASING force as it gathers mass going down

if u want to start getting properly technical

it cant fall faster than gravity
because obviously
but with each floor it gathers energy instead of loosing it

then once you have those basic figures
you can then start to add the frequency impact waves running increased pressure loading on to the structure causing a probable harmonic vibration which then reduces the strength of the bolts as EVERYTHING sings at that pitch
an increasing pitch
as
the fall continues
it drops dense mass on to vibrating mass which doesn't like to be vibrated
so the liquid(steel in its cold state being a cooled liquid)
cant stand the sheer factor ripping its self apart

just keeping it fairly simple
im sure some of the more skilled people can get technical with figures for you
 
bin-laden

I would be fairly certain ol' bin would not have known much about the design of the Twin Towers but was it not the newness features of the design which contributed to the collapse?

Something about moving support columns to the outer regions allowing larger open areas in the inner regions

Not to say the towers would not have collapsed with a earlier design. Even without the collapse the towers would have been demolished. The collapse vastly increased the death toll

:)
 
I would be fairly certain ol' bin would not have known much about the design of the Twin Towers but was it not the newness features of the design which contributed to the collapse?

Something about moving support columns to the outer regions allowing larger open areas in the inner regions

Not to say the towers would not have collapsed with a earlier design. Even without the collapse the towers would have been demolished. The collapse vastly increased the death toll

:)

bin-ladins family had construction companys
he worked or ran some of them from rough memory
he had access & some reports suggest had plans & examined them
knew what he wanted
how to achieve it

2 factors assisted that ends

as you say the moving of floor to floor supports

the other is the construction of the main frame, which allowed a tower in the center instead of an exterior main structure(it was a bit of a new concept)

the main structure was made instead of long steel supports cantilevering into long supports

it was made of a main structure running up the center
made of lots of short pieces requiring a vast amount of bolts

so 4 factors assisted it

1 knowledge of the structure & its weakness
hard burn in a kiln from the jet fuel & office furniture being turned into a furnace up the center shaft super heating & melting the short pieces of main structure steel

what was left was the critical height to get the maximum furnace effect & maximum weight to pack-cake all the floors
the weight of the top floors was more than sufficient
once that weight started moving nothing could stop it
 
Like it is possible to accurately calculate the potential energy of the towers without knowing the mass in the 6 basement levels.
LOL

That would have been 5% of the height, was it 5% of the mass? 25,000 tons minimum?

What report or article provides that data? I haven't found one. How many don't even mention the basements? Most of them.
 
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Would not basements, being in ground, and obviously subject to ground movement while weight bearing of the building, be constructed stronger than mere above ground levels?
Haven't you figured this out yet? IT DOESN'T MATTER to him. None of this does. All he wants to do is feel special because he knows something that he thinks no one else does.

You could get the weight of the basement correct to the gram and he'd say "oh like it is possible to accurately calculate the potential energy of the towers without knowing the exact mass of the antennas on top of the buildings. They were not in the original plans you know! WHY aren't they there? Why are they trying to hide this? Only I know the truth!"
 
Would not basements, being in ground, and obviously subject to ground movement while weight bearing of the building, be constructed stronger than mere above ground levels?

:)

By saying it had to be at least 5%, don't you think I was implying that it would be more since it had to support all of the above ground weight?
 
Sure, that is why Scientific American mentions Potential Energy.

When released, the accumulated potential energy is converted to kinetic energy. With a mass of about 500,000 tons (5 x 108 kilograms), a height of about 1,350 ft. (411 meters), and the acceleration of gravity at 9.8 meters per second 2, he came up with a potential energy total of 1019 ergs (1012 Joules or 278 Megawatt-hours). "That's about 1 percent of the energy released by a small atomic bomb," he noted.

https://www.scientificamerican.com/article/when-the-twin-towers-fell/

Now this is funny.

500,000 tons is 1,000,000,000 lbs.

A kilogram is 2.2 lbs so a billion lbs is
4.545 × 10**8 kg. So Scientific American begins by being off by 9%.

WTC2 was 1362 ft and WTC1 was 1368, so they couldn't even get the heights correct.

LOL
 
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