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WTC dust

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Doesn't an aircraft generate alot of static electricity when in flight? Could that not have been the flash seen in the photo?
 
TheBigKahuna said:
Fail, you still need to show where this paper from a peer reviewed journal is wrong:
Wierzbicki, T. & Teng, X. (2003). "How the airplane wing cut through the exterior columns of the World Trade Center." J. of Impact Engrg. 28, pp. 601-625
After all, that's what research scientists do.
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carlitos said:
link
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Perhaps I didn't make myself clear--
In order to 'show where this peer reviewed journal is wrong'
as big kahuna requests I need to read --
"Wierzbicki, T. & Teng, X. (2003). "How the airplane wing cut through the exterior columns of the World Trade Center." J. of Impact Engrg. 28, pp. 601-625"

Do you have a link to pages 601-625 of this peer reviewed journal big kahuna
cites as "evidence" ?
 
Fonebone said:
Perhaps I didn't make myself clear--
In order to 'show where this peer reviewed journal is wrong'
as big kahuna requests I need to read --
"Wierzbicki, T. & Teng, X. (2003). "How the airplane wing cut through the exterior columns of the World Trade Center." J. of Impact Engrg. 28, pp. 601-625"

Do you have a link to pages 601-625 of this peer reviewed journal big kahuna
cites as "evidence" ?
Click to expand...

Buy it, like everyone else does. Don't try to steal money from the journal. Purchase the article. You can do that you know.....
 
bill smith said:
Interesting new video.. It would almost make ypu think that a lot of steel was taken away..lol.

http://www.youtube.com/watch?v=JabychkGItE&feature=player_embedded
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And it was taken away to make the bow for the new Naval ship: New York.

It was taken away to Hanger 17 @ JFK Airport: http://www.nytimes.com/interactive/2008/09/10/nyregion/20080911-hangar-panos.html

And my hometown Johnstown, Pa has a piece of outter column, from one of the WTCs', that sits in front of a big pavillon that's beside a church.

Alot of steel wasn't "taken away", it was mearly stored & presented to other communities throughout the U.S.
 
triforcharity said:
Oh, I duuno, maybe to more rubble out of the way to try to save peoples' lives? Who would'a thunked it.........
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It's a shame that the dump truck people were not running the airforce and other agencies that they. They were so fast off the mark that the planes had barely hit before they were in a convoy and on the road..
 
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bill smith said:
It's a shame that the dump truck people were not running the airforce and other agencies that they. They were so fast of the mark that the planes had barely hit before they were on the road..
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Do you have proof or evidence that they were on the road "before" the planes impacted the WTCs'? Or are you just blowing hot air again like WTC Dust does?? :rolleyes:
 
bill smith said:
It's a shame that the dump truck people were not running the airforce and other agencies that they. They were so fast off the mark that the planes had barely hit before they were in a convoy and on the road..
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Barely hit.....~6pm.......yeah, close enough......:rolleyes:
 
bill smith said:
Interesting new video.. It would almost make you think that a lot of steel was taken away..lol.

http://www.youtube.com/watch?v=JabychkGItE&feature=player_embedded
Click to expand...

Those are NYCHA (New York City Housing Authority) trucks. Obviously they were staging them. To assist in rescue and recovery, debris had to be moved. A call for equipment was put out that day and a lot showed up. NYCHA had many MANY trucks to spare to help out and apparently they did. The company I worked for at the time donated the use of a 15,000lb (capacity) forklift that worked down there for a few months.

NYCHA truck

ETA: Pretty stupid though Bill, it's pretty obvious steel beams from the trade center wouldn't fit in the beds of those trucks. You would know that in an instant if you have ever seen one in real life. You run into them around projects in the city.
 
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Fonebone said:
Perhaps I didn't make myself clear--
In order to 'show where this peer reviewed journal is wrong'
as big kahuna requests I need to read --
"Wierzbicki, T. & Teng, X. (2003). "How the airplane wing cut through the exterior columns of the World Trade Center." J. of Impact Engrg. 28, pp. 601-625"

Do you have a link to pages 601-625 of this peer reviewed journal big kahuna
cites as "evidence" ?
Click to expand...

here you go
This is a link to another post of mine in which I provide not only the link but also the abstract of the paper.
 
Justin39640 said:
He won't pony up the 31 bucks to read it. I'm waiting for the cry "If it's not free it's an inside job!!11!!!!11!"
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My school subscribes to Science Direct which owns the paper. It is very technical and hard for me to understand completely. There are some interesting comments in it, though. From the conclusion of the paper,

The minimum impact velocity to cause fracture was determined from Eq. (24) to be 155 m/s. Should the aircraft be traveling not at a cruising speed but at a much lower take-off or landing speed of 200 mph (about 100 m/s), then the exterior columns would appear to have deflected the wingswithout fracture.

It is concluded that the process of wing cutting through the exterior columns dissipated only 1.139MJ of energy. This constitutes only 6.7% of the initial kinetic energy of the wing. The remaining 93.3% of the kinetic energy was then transferred into the interior of the building causing fatal damage to the floors and core structure. The present analysis introduced a substantial correction to the earlier estimate of the energy required to shear the column reported in Ref. [1] but in each case the energy to break the airplane wing through the exterior facade of theTwin Towersis in significant.

The present analysis also suggested that the exterior column would be able to stop the airplane wing or at least prevent a local shear failure if the average flow stress of the material is increased by a factor of two. Thus, had the plane hit the base of the Towers which were made of high strength steel with the yield stress of sy ¼ 700 MPa; the airplane might have been deflected by the exterior walls.
Click to expand...
 
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