It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
originally posted by: lordcomac
Doesn't explain the pools of liquid metal in the rubble like, though...
of course, it was all shipped to China long before anyone could sample anything and get any real answers.
originally posted by: blackaspirin
a reply to: kyleplatinum
I have no idea where you're getting that I should be proposing a 25-second fall, that's not me saying it - it's YOU.
When you're honest enough to pick a floor below the collapse, and watch how it isn't in motion until it gets crushed, you will understand.
It looks like 16 years of willful ignorance isn't enough yet, and you're gonna go for some more. GOOD LUCK.
originally posted by: kyleplatinum
I am simply stating, from what you believe happened, a gravitational collapse slamming down on each floor with the mass amounts of resistance of the undamaged floors below. The collapse should have been around 25 seconds to fall, not 10-14 seconds.
As for the video of the collapse, floors are blowing out a lot lower than they should be, and faster.
originally posted by: SagacityYou do mean except for the 24 tons of WTC steel that was used to help build the USS New York right? Oh, and the various pieces of steel used in many monuments...
a reply to: intrptr
Not if it ignites available fuel, like all the plastic office furniture, carpets, partitions, computers, etc., fed by winds aloft, thru slits in the office building floors with all the windows blown out: inward rushing air (like in a Venturi) drawn in like in a puddling furnace, sustained for one hour...
So Where Did All The Molten Steel Come From?
www.uwgb.edu...
One particular red herring that crops up frequently is that temperatures in the rubble were high enough long after the collapse to melt aluminum. Since aluminum melts at 660o C (1220o F) I don't have the slightest doubt of it. Since a backyard trash fire can melt aluminum, so what?
Apparently, the melting of steel signifies the use of explosives or thermite cutting charges. But the purpose of either is to cut steel, not melt it. A controlled demolition simply does not produce large amounts of molten steel. You might as well argue that all the concrete dust shows the buildings were taken down by an army of gnomes armed with grinding wheels.
If the World Trade Center was hot enough to melt steel, where's all the molten concrete? Iron melts around 1500o C but so do many of the silicate minerals in concrete, and a mixture of silicate minerals would melt at a temperature lower than any of the individual minerals (I'm a geologist - I get paid to know about stuff like that). The fine particle size of the concrete dust would facilitate melting. So why wasn't there a huge puddle of molten concrete at Ground Zero? (There was some, but about what you'd expect from a large fire; certainly not what you'd expect from something hot enough to melt large amounts of steel.)
In a paper by Steven E. Jones, who bills himself as a "Physicist and Archaeometrist," there are pictures of glowing material falling from the World Trade Center, together with this comment:
Who can deny that liquid, molten metal existed at the WTC disaster? The yellow color implies a molten-metal temperature of approximately 1000o C
1000o C, is about 500o C below the melting point of iron.
Oh, by the way, there would have been cutting of steel during the construction. And there's another construction process that melts steel. Welding.
www.uwgb.edu...
Is Much of the World Trade Center Missing?
Some conspiracy theorists claim that large amounts of the buildings were unaccounted for by the size of the rubble pile. Since only 12% of the building volume was solid, the towers should collapse into a pile 12% of the original height of the building, or just about 50 meters high. Since 18 meters of that pile would be filling the basement, the above-ground portion would be 32 meters high.
The actual rubble pile reached the fifth story of adjacent buildings, so well outside the footprint of the tower the pile was five stories, or about 15 meters high. The pile would have been roughly conical, and would have included a lot of void space, increasing its height and offsetting the larger diameter of the pile. Overall the rubble pile is what you'd expect.
So it simply isn't true that the rubble pile is only a small percentage of what would be expected. Some conspiracy sites allege that the rubble pile is only 5% of what would be expected. Others use a figure of 33% as the height of a rubble pile relative to the original building and then argue that the pile should have been 140 or so meters high. But when Controlled Demolition Inc. (www.controlled-demolition.com...) dropped a 23-story, 439-foot (134 m) building in Detroit in 1997, they ended up with a pile averaging 35 feet high (11 m) and a maximum of 60 feet (18 m) high. The rubble pile was an average of 8% of the height of the original building and a maximum of 14%. Scaling that up to the World Trade Center, we get heights of 33 to 58 meters. In other words, the rubble pile at the World Trade Center is totally in line with other large building collapses. 33% may work for a small building a few stories high, but a large building will compress the debris pile a lot more and also fill void spaces more effectively with pulverized debris.
www.uwgb.edu...
All That Dust
A couple of revealing studies have been done on the dust from the World Trade Center. One was by the U.S. Geological Survey (pubs.usgs.gov...). They measured the composition of the dust and found
See chart...
Those figures are about what would be expected for a mix of concrete, drywall, and insulation. The loss on ignition indicates how much of the dust was combustible, mostly cellulose from drywall binder and paper. Titanium is partly from minerals in the concrete aggregate, and partly from paint. Titanium dioxide refracts light extremely strongly and is used in paints to make the paints opaque. The sulfur reflects gypsum, which is hydrous calcium sulfate and the principal ingredient in drywall..
Gypsum, paper, asbestos and paint were insignificant in amount compared to the concrete and steel in the towers. The mere fact that they show up at all in chemical and physical analyses completely demolishes the idea that large portions of the towers were turned to dust.
Another study (www.ehponline.org...) found that half or less of the dust in their samples was concrete, and the other half was fibers of various kinds. Most of the fiber was glass fiber, but 10-20% was cellulose. Neither study measured the bulk density of the dust because it wasn't meaningful for either study, and would depend on the length of time the dust had settled and whether or not it had rained. But all the photographs in both studies show very fluffy dust.
No, the collapse should not have been 25 seconds "according to what I believe". That's you, once again - coming up with the figure, and attributing it to me.
there's no way you're going to admit it's false now.
I'm sorry you painted yourself into a corner that you will never get out of.
point out how that the floors below the collapse are already falling as well
www.uwgb.edu...
Vaporizing Steel
Supposedly, videos of the collapse of a remnant of one tower show it vanishing into dust. In addition, many conspiracy theorists claim that much of the steel from the World Trade Center has vanished.
The USGS data above show iron contents in the dust ranging from half a per cent to 4 per cent, with an average of 1.6%. Since iron makes up 5% of the crust, we'd expect a few per cent iron in concrete. Add to that some iron oxide from corrosion by the concrete in contact with steel and mechanical abrasion during the collapse, and the numbers are consistent with the iron content we find. We do not find the iron concentrations we'd expect if large amounts of iron were powdered.
So, powdering the steel? The chemistry tells the story. It simply didn't happen. Collapsing and leaving a trail of dust behind is not the same thing as turning into dust.
Directed Energy Weapons
One of the favorite theories for bringing the towers down, apart from thermite or demolition charges, is directed energy weapons. These are especially favored by folks who argue that large parts of the towers were turned to dust or vapor.
Real directed energy weapons fall into very limited categories.
Lasers. These can deliver a lot of energy to a small space, but for long distances on earth their effectiveness as weapons is limited by the atmosphere. Laser weapons powerful enough to damage human sight are possible. A laser powerful enough to cause physical damage to materials at a long distance will ionize the air, making it opaque ("blooming")
Particle beams. These are even more limited on the earth's surface because the particles will interact with atoms in the atmosphere.
Microwaves. These can be used to heat the surface of the skin to intolerable levels and are being actively developed as nonlethal crowd dispersal weapons. One suspects lethal versions are not hard to make.
So directed energy weapons have been considered mainly for three purposes:
Space warfare, where the goal is to damage electronics or missile heat shields
Ballistic missile defense. Ground based systems have been plagued by atmospheric limitations
Crowd dispersal using microwaves.
So directed energy weapons can deliver a lot of punch to a small, visible and unobstructed target, and even air is an obstruction for these purposes. And they can deliver enough energy to frazzle human nerve endings and damage the retina. Evidence for weapons systems capable of punching into the interior of a building or powdering concrete and steel over a large area? Zero, zip, nada, bupkis.
Nobody has EVER calculated how much fuel was onboard whatever aircraft they were that struck the towers.
originally posted by: Salander
a reply to: canuckster
Good questions.
Nobody has EVER calculated how much fuel was onboard whatever aircraft they were that struck the towers.
So if you're looking for precise calculations to support the official conspiracy theory, don't hold your breath. They are not there. The closer one looks at the official theory, the more quickly it falls apart.
What numbers are available are the heat conducting properties of steel, and when one applies those to what we have, one quickly discovers the small fires at the impact point, burning some bit of jetfuel and office furnishings could not possibly have produced enough heat, much less could that heat be conducted throughout the structure to make it so that free fall collapse of the entire structure could occur.
The OCT is bogus.
At exactly 9:03:02, Flight 175 crashed nose-first into the southern facade of South Tower of the World Trade Center, at a speed of approximately 590 mph (950 km/h, 264 m/s, or 513 knots)[22] and striking between floors 77 and 85 with approximately 10,000 U.S. gallons (38,000 L; 8,300 imp gal) of jet fuel on board.[14][23]
originally posted by: Salander
a reply to: kyleplatinum
Have you any thoughts about what force was responsible for the horizontal movement of large steel pieces?
originally posted by: kyleplatinum
OK, then what do you believe? You definitely do not believe what I do, so that means you think the towers falling the way they did was perfectly normal right?
originally posted by: kyleplatinum
They weren't falling, they were being blown out. It is clearly seen in almost every video.
The entire complex was meant to fail.