Science

Mostly Cloudy with Showers 13° London Hi 16°C / Lo 8°C

Magnetic forces to blame for 9/11 tower collapse

By Steve Connor

Scientists can finally explain why the Twin Towers collapsed on September 11, despite the temperature of the fires being well below the 1,500C melting point of the steel girders holding up the buildings.

The discovery that unusual magnetic forces within the girders made them weak at temperatures of about 500C explains away the conspiracy theories that have spread like wildfire since the disaster.

Sergei Dudarev, of the UK Atomic Energy Agency, found that steel loses its strength above 500C because its molecules undergo a physical transition from one state to another due to magnetic fluctuations. "The steel didn't melt, it just became soft. It is an unusual state and the temperatures in the Twin Towers were high enough to cause it because the thermal insulation was knocked off the girders through the impact with the aircraft," he said.

"Understanding how materials behave means we can find the right 'medicine' to make steel stronger at high temperatures... and if our work can be used for other applications, such as safeguarding tall buildings against disasters, so much the better," he said.

Post a Comment

View all comments that have been posted about this article.

Offensive or abusive comments will be removed and your IP logged and may be used to prevent further submission. In submitting a comment to the site, you agree to be bound by the Independent Minds Terms of Service.

Comments

Page 1 of 2
<<[1] [2] >>
[info]sadworldi wrote:
Friday, 8 May 2009 at 07:55 am (UTC)
Its nice that science is 'coming back' into debate after the recession and swine flu epidemic has been catching the headlines recently. visionary leadership is needed at scientific institutions to help get them through their plight.
Come On now..
[info]patriot099 wrote:
Friday, 24 July 2009 at 04:15 pm (UTC)
And why this "magnetic" effect didn't occur on numerous other skyscraper fires (more severe than in case of twin towers) in the past? Those buildings remained erect post fire. What about WTC Bldg 7?
Re: Come On now..
[info]savyindallas wrote:
Sunday, 26 July 2009 at 03:19 am (UTC)
The magnetic forces phenomena is a recent development - due to Global warming. However, it was only temporary. Due to the recession, cap N trade and the overall positive environmental effects of the Obama adminisitration, magnetic forces will no longer result in buildings collapsing from fire. You can close the book on 911. The magnetic forces phenomena is positive proof. It doesn't explain WT7 - but they're working on that one also. We know 19 degenerate Arabs from caves did 911, -because the Government says so. Our government does not lie on such important matters.
but the steel DID melt...
[info]anthonycerro wrote:
Friday, 24 July 2009 at 04:34 pm (UTC)
RE: "The steel didn't melt, it just became soft. It is an unusual state and the temperatures in the Twin Towers were high enough to cause it because the thermal insulation was knocked off the girders through the impact with the aircraft,"

Molten steel was found below the rubble of the Twin Towers and WTC 7 sites, where it continued to burn for WEEKS after the collapse of these structures. If it is generally accepted that the steel couldn't have melted due to the fires, then how did the steel become and remain molten undergound?

Active thermate residue has been found in the dust from these collapses. Not just thermate residue, but a very specific formula, boosted with barium, that is licensed only for use by the US military. Google "Steven Jones" or "architects for 9-11 truth" if you want to review the evidence for yourself.

Magnetic forces my eye!
still doesn't explain the EXPLOSIONS
[info]mikephilbin wrote:
Friday, 24 July 2009 at 04:35 pm (UTC)
I mean, come on, you guys have to be doing a TONGUE IN CHEEK pass on this disinfo, right?

Please do some REAL JOURNALISM before writing about this very serious FALSE FLAG subject.

It's belittling the art of journalism.

Magnetic or mesmeric forces to blame?
[info]treystar wrote:
Friday, 24 July 2009 at 04:40 pm (UTC)
In other words, considering the astounding nature of the public's mass, trauma-based suggestibility -- the official sources can tell us anything, and we're apt to believe it.
Are you serioius?
[info]dresan911 wrote:
Friday, 24 July 2009 at 04:41 pm (UTC)
How does this that cause the building to fall a near free fall speed? Only certain sections of the building's were burning. How does World Trade Tower 7 fall at free fall speed with minor fires and it wasnt evern hit by a plane? It received minor damage compared to closer building that didnt collapse from debris or fire or magnetic's???? Perhaps we need more clarity and investigation in connecting magnetics with collapse before throwing out supposed proof of why the building collapsed. You seem so sure, but the connection is vague and not well thought out. This is today journalism I guess.
911 magnetic changes
[info]truthgiver911 wrote:
Friday, 24 July 2009 at 04:52 pm (UTC)
This is just hogwash. No scientist would ever say such stupidity. Just desperate people trying to explain away the absence of science in the official conspiracy theory. The steel not only melted, it couldn't have weakened enough to bring the building down do to the simple fact of conductivity. Steel conducts heat. You need a certain amount of heat in a specific location for a proper duration of time for any part of the steel complex to be compromised. The entire building (47 inner core steel columns and 200 outer columns interconnected by steel trusses) was a giant heat sink. Therefore, it couldn't get hot enough in one part, nevertheless the entire building, to bring it down in such a short time. This building was made with top-grade U.S. steel - not cheap parts. The buildings (all three) came down in near free-fall speed. In other words, without any significant resistance at all. Again, impossible without controlled demolitions.

Anthony Rago/Staten Island
and there's still a question of resistance...
[info]anthonycerro wrote:
Friday, 24 July 2009 at 04:53 pm (UTC)
If the steel were only "softened" as suggested above, this still would have provided a tremendous amount of resistance against the downward collapse of the structures, significantly slowing down the rate of collapse. The fact that the towers both fell within roughly ten seconds, nearly free-fall speed, implies that there was NOTHING in the way of the collapse to slow it down. The only explanation for this is that the floors were blown out of the way of the collapse as the towers fell.

Additionally, what about the 47-beam vertical core columns at the center of each of the towers? They too collapsed all the way to the ground, and became part of the molten pools that burned below Ground Zero for weeks after the attacks. If this new "theory" is sound, there should still have been a few hundred feet of these core columns still standing post-collapse.
Great scientific explanation
[info]bob_benar wrote:
Friday, 24 July 2009 at 05:04 pm (UTC)
It was most likely the magnetic effect that triggered the sixth sense of the Israelis so that they realized that something spectacular would happen to the Twin Towers and that they had the moral obligation to document it on video!

When their sixth sense was later confirmed in the form of two airliners crashing into the towers, how could they react but in euphoria that their sixth sense had proven right?

Now we have the evidence that magnetic forces can weaken steel at pretty low temperatures and in fact can make neighboring buildings suffer from the same effect and consequently collapse in sympathy with the ones first affected as it happened with building 7.

The really interesting thing about this magnetic effect is that although steel caves in at low temperatures it in effect has a memory of its real, scientifically proven melting temperature. Realizing that fact it subsequently overcompensates and produces molten steel that remains molten for weeks afterwards.

The jubilant Israelis can thank the New York Police Department for arresting them and for bringing them to a safe location far enough from the Twin Towers to escape this awful magnetic effect. Otherwise this magnetic effect would have caused them to self combust and subsequently made them molten Israelis, which would have been another first in the history of science.
Re: Great scientific explanation
[info]ancientoneuk wrote:
Friday, 24 July 2009 at 06:35 pm (UTC)
Well said about the dancing Israeli's who whooped and cheered when it happened and every jack last of them were exposed as Mossadi... and quietly allowed to leave.

The other thing as well, these towers were built with "belts and braces" engineering and with a plane impact in mind, they were built with partial redundancy in its structural overview meaning that portions could collapse or break out and the building would stand, the fire would have to have melted across the floor for this explanation to even have the remotest of merits, the thermal images alone showed that the fires were actually quite isolated.

Skyscrapers are subject to incredible stresses and designed as such, towards the top because the whole thing acts like a sail, a strong wind would seem like it being battered with a pressure many times that of the actual wind but these two buildings were designed also to withstand objectal impact such as a plane, there still is NO credible reason why they collapsed other than they were "pulled" and that is highly indicative in the way they collapsed too, controlled demolition.
Not an explanation
[info]davidschandler wrote:
Friday, 24 July 2009 at 05:05 pm (UTC)
Even if this bizzare idea turned out to be true, it would not explain the observations. The North Tower started its collapse well above the impact. The vast majority of the building was undamaged and at its full strength. The collapse actually accelerated as it went, which implies that the undamaged part of the building offered less resistance than would be required to support a static load. A wave of explosions raced down the building well ahead of the collapse front. Building 7 fell at absolute free-fall for over 100 feet, implying sudden, total removal of support over a span of ~8 stories. There was molten iron running in the rubble pile weeks after the collapses. The dust contains billions of micro spheres of previously molten iron that was subsequently atomized to droplets that cooled before hitting the ground. And the dust contains identifyable flakes of high tech nano-thermite. Finally, why was the iron removed from the scene before a proper forensic investigation and how can this researcher presume to identify the state of the iron without the physical evidence? See http://www.ae911truth.org
--David Chandler
Not an explanation
[info]davidschandler wrote:
Friday, 24 July 2009 at 05:06 pm (UTC)
Even if this theory turned out to be true, it would not explain the observations. The North Tower started its collapse well above the impact. The vast majority of the building was undamaged and at its full strength. The collapse actually accelerated as it went, which implies that the undamaged part of the building offered less resistance than would be required to support a static load. A wave of explosions raced down the building well ahead of the collapse front. Building 7 fell at absolute free-fall for over 100 feet, implying sudden, total removal of support over a span of ~8 stories. There was molten iron running in the rubble pile weeks after the collapses. The dust contains billions of micro spheres of previously molten iron that was subsequently atomized to droplets that cooled before hitting the ground. And the dust contains identifyable flakes of high tech nano-thermite. Finally, why was the iron removed from the scene before a proper forensic investigation and how can this researcher presume to identify the state of the iron without the physical evidence? See http://www.ae911truth.org
--David Chandler
Re: Not an explanation
[info]davidschandler wrote:
Friday, 24 July 2009 at 05:11 pm (UTC)
Woops! How did that happen? Oh well, read it twice.
[info]dogsolitude_v2 wrote:
Friday, 24 July 2009 at 05:11 pm (UTC)
Oh ffs.

This is really going nowhere.

There are so many people out there who will simply refuse to believe anything the government or authorities come out with on this matter.

The whole 9/11 / War On Terror / Iraq / Afghanistan scenario has all sorts of holes in it (CIA training Al Qaeda, our previous relationship with Saddam, PNAC etc) and has irreperably damaged the public's confidence in the political elite and their relationship with the military industrial complex and global business.

...And then you report this shoddy little number, without any proper in-depth scientific explanation.

Not so much as a diagram showing the effects of heat on the atomic/molecular structure of the metal.

"because its molecules undergo a physical transition from one state to another due to magnetic fluctuations"

I mean come on. I know you're not exactly New Scientist (which itself is dumbing down nicely), but that's just an utterly pointless sentence. From which state to which other state? What kind of Magnetic fluctuations are we talking about? Can we have a link to something a bit more substantial? Apparently not. How was it tested? How was the discovery made?

I'm genuinely interested and would like to know. Are you worried that your poor, dumb readers may be scared off by too much detail?

"The discovery that unusual magnetic forces within the girders made them weak at temperatures of about 500C explains away the conspiracy theories that have spread like wildfire since the disaster."

No it doesn't. Are you saying that this discovery now makes it impossible that it could have been explosives inside the buildings? Even if the findings are correct, then this just offers an additional explanation for the collapse, not the sole possibility!

This kind of crappy reporting feeds more conspiracy theories than it debunks. Please, try harder next time. Science and logic are so important.
The GEICO conspiracy theory
[info]bilejones wrote:
Friday, 24 July 2009 at 05:16 pm (UTC)
that the establishment pushes, "9/11 , so easy a caveman can do it" seems to be really burning through the " and if it wasn't this, then it was that, or maybe it was this thing over there, but we all know what it wasn't" excuse list really quickly nowadays.
So....how does this explain WTC 7?
[info]slingshot227 wrote:
Friday, 24 July 2009 at 05:24 pm (UTC)
"because the thermal insulation was knocked off the girders through the impact with the aircraft"

Building 7 was not hit by a plane, yet it fell in the same fashion as buildings 1 and 2.

Mr. Connor reports that magnetic forces caused the collapse and he's got credibility. I say that thermite brought down the buildings and I'm a whacko conspiracy theorist. wtf
shameful
[info]chappymoran wrote:
Friday, 24 July 2009 at 05:29 pm (UTC)
To Steve Conner (author of this article): shame on you for posing as a "journalist". Even an 11 year old can see that this theory doesn't make any sense whatsoever. You should seek a new profession...used car salesman comes to mind. -JS
The Cat is out of the Bag
[info]tomewing wrote:
Friday, 24 July 2009 at 06:08 pm (UTC)
They'd be better saying nothing than coming out with this claptrap - now we know they are desperate
active thermite found in WTC dust - peer reviewed report
[info]mikephilbin wrote:
Friday, 24 July 2009 at 06:09 pm (UTC)
Look at the FACTS and the EVIDENCE only, not the 'tinfoilhat brigade'. This is the report THE MAINSTREAM MEDIA should be promoting, not the latest corporate press release from Denial Central.

:)

The peer reviewed paper entitled 'Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe' can be downloaded in PDF format at:

http://www.bentham-open.org/pages/content.php?TOCPJ/2009/00000002/00000001/7TOCPJ.SGM

and here's Niels Harrit explaining it on Danish TV
http://www.youtube.com/watch?v=NvtPSl__UoY
Last chance of desperation....
[info]ancientoneuk wrote:
Friday, 24 July 2009 at 06:27 pm (UTC)
What a load of rubbish, this theory is more cuckoo than that of the pod people and we are supposed to buy into because someone "official" thought it up.

So why did the similarly constructed tower in Madrid not collapse? Or the ones in the far east?

Why did they state time and again, despite video capturing the tell tale "puff" of cutting charges, that no charges were ever used and then covered up the very fact that nano-thermites were found in the dust.

Go back to William Rodriguez, listen to what he said of the even two weeks prior, when an unexplained security drill forced the two towers to be evacuated including the security staff and enough time to get those charges ready, now go look at the huge amount of Bush family members crawling all over this like the maggots they are, not just brothers, cousins and their spouses, now go and see who makes Nano-Thermite and Thermate and owns the patents.

And strange if I remember right that some 4 billion dollars worth of gold disappeared that day too and that story was buried deep... not so long after another big discovery was being buried, the missing Pentagon trillions.

By their responses you shall know... they knew that we weren't buying this sack of horsecrap and with the clamour of thousands of experts and even people in Congress and Hollywood now shouting for the truth, they are desperate for you all to go back to sleep knowing it was "magnetic forces"...

Remember the very strange oddity that pilots were trained at a school partly owned by Jeb Bus, security there just happened to be another Bush, the insurance process and claim administered by another Bush, can't people see this ticked all the boxes for them, a smacking great heist and the means to wage war.
Re: Last chance of desperation....
[info]anthonycerro wrote:
Friday, 24 July 2009 at 06:47 pm (UTC)
And let's not forget that the bomb-sniffing dogs, which had been in place as a security measure since the 1993 false-flag attack on the WTC, were removed from service about a month before the 9-11 attacks.

Let's not forget that both the towers were subjected to an unprecedented 36-hour power-down during the weekend immediately preceding the 9-11 attacks, shutting down security and surveillance systems, allowing total access to a group of "workmen" purportedly installing "high-bandwidth internet cable" in the towers.

I had the pleasure of speaking with William Rodriguez at Ground Zero during the 5th anniversary of the attacks. I believe his story of sub-basement explosions PRECEDING the airliner impact upon the North Tower with every fiber of my being. He is universally hailed as a hero, having rescued no fewer than 15 people himself, then accompanying firefighters as they made their way up the towers, opening firedoors and passing out bottled water during their rescue operations. Willy was the "last man out" of the North Tower, and survived by diving under a fire truck as the tower debris rained down upon him.

He is by all accounts a hero many times over. What reason on Earth would he have to tell an even bigger tale by lying about these explosions? His testimony is infinitely more credible that that of this Dudarev dude, yet it was taken behind closed doors by the 9-11 Commission and never published as part of it's findings...
and furthermore...
[info]anthonycerro wrote:
Friday, 24 July 2009 at 06:27 pm (UTC)
Why is this "non-story" being re-run now, when it appears the research was published, together with this very article, in September 2008???

I'm amazed any self-respecting journalistic entity would even consider giving Dudarev's "explanation" a second pass, when it was THOROUGHLY DEBUNKED ALMOST A YEAR AGO...

www.georgewashington2.blogspot.com/2008/09/unusual-magnetic-forces-should-not-have.html
So please explain why WTC 7 Collapsed
[info]vbxer wrote:
Friday, 24 July 2009 at 07:31 pm (UTC)
Oh yeah you can't... Idiot. Simple fact is. Nano Thermites were used. If you can't accept that, then you the biggest fool. Even when the evidences are right there in front of your face.

Magnetic Forces? LOL. That's more idiotic than those Conspiracy Theories.
Abyssus abyssum invocat
[info]moggio wrote:
Friday, 24 July 2009 at 07:46 pm (UTC)
It's over Steve.

The cat is out of the bag.

The truth is out, and the lights are on.

Keep cashing the checks and sleep well.

If this was genuine...
[info]old_green wrote:
Friday, 24 July 2009 at 07:53 pm (UTC)
This would have a major impact on physics and engineering
Someone would win a Nobel Prize
There would have to be extensive research programmes to determine the safety implications
All technical standards would have to be revised
There would have to be safety assessments of the design not merely of buildings, but also ships, power stations, etc., etc.
All engineering degree courses would have to be revised

I could go on and on, but you get the picture.

Ask yourself, do you see any of these things happening?
Gosh caused the New York Towers to collapse
[info]lsilverstein wrote:
Friday, 24 July 2009 at 07:56 pm (UTC)
The only logical, applausible, and indisputable reasoning to the collapses of the 3 New York Towers on 9/11/2001 was due to Gosh's hands.

Lots of reports have showed that on 911 attacks were well planned and carried out by Gosh. The Towers were vaporized due to Gosh's wills.

3000 gosh-condemned persons were taken by Gosh on 9/11/2001. There is noone who could dispute this fact.

Thus, Gosh was the one bombed and collapsed those 3 NY Towers. Any other reasons are all absurp, and impossible to PULL.

Signed Larry Silverstein (aka NY Tower Puller)
Actually, are if any of the official theories of building collapse was valid...
[info]old_green wrote:
Friday, 24 July 2009 at 08:03 pm (UTC)
There would have to be major reassessment of existing building standards, in case any other building collapsed the same way
There would have to be reassessments of the design of all major buildings, etc., etc.

This is what happens when there is a genuine major disaster (as opposed to a fake)

But you don't see this safety assessment happening after 9-11, do you?

In a way, it doesn't matter that a plane crashed into each of the towers (they were designed to withstand that, anyway) - what allegedly caused the the buildings to collapse was the fires - fires that could have been started by anything, but in this case were started by the planes. WTC was just a fire - no plane impact at all.

If a fire caused a major building to collapse - never mind three major buildings - that would cause seismic ripples through the engineering and safety industry. But 9-11 didn't.

9-11 'changed everything' - except in engineering, where nothing changed.

Look at the billions spent on security after 9-11 - how come nothing was spent on fire safety assessments?

Have you asked yourself what that means? It has to mean that, institutaionally, engineering does not believe the official story.
Re: Actually, are if any of the official theories of building collapse was valid...
[info]vbxer wrote:
Friday, 24 July 2009 at 10:08 pm (UTC)
The reason reason why the buildings fell is Nano-Thermites. It's the same reason why WTC7 fell, even though it was not hit by a jet. Why are these new sources Ignoring WTC7?

Nano-Thermites were found in the WTC dusts. Some of them particles found were un-exploded.

The traces of Nano-Thermites points to INSIDE JOB.
[info]jefferies_tube wrote:
Friday, 24 July 2009 at 10:08 pm (UTC)
if we re-route the warp core power through the subspace resonator, we may be able to reverse the effect of the magnetic fluctuations.
Page 1 of 2
<<[1] [2] >>

Most popular