Originally posted by thedman
reply to post by mnemeth1
What you are seeing is the internal collapses ahead of the main debris
wave - as the section above collapses it slams in the floor below overloading it and causing it to collapse.
Originally posted by mikelee
There is no way possible, scientific or otherwise that it could be "collasping ahead of the main debris" because in the floors below there was no fire to weaken the metal. So how can the lower building floors collaspe ahead of the main above it? The floors below were for all intents & purposes, were in good condition up to the moment the top portion of the towers crashed down on them.
Originally posted by Stickerr
Theres no way they were bombs, if you wat at 3:40 second mark and on you'll see the those white flashes in the sky and in front of the 2nd building. Its just video glitches, or poor video editing to make it look like something else.
Originally posted by rush969
Originally posted by mnemeth1
I ABSOLUTELY BELIEVE NANO-THERMITE WAS USED
However, the size and type of charge used is what has become clear to me from this. There were numerous small explosive charges used. There was not huge massive piles of explosives as some have suggested.
Absolutely, nano-thermite explosives were used.
Excuse me but I thought nano-thermite was not in the form of an explosive charge carrying a detonator.
If I understand correctly, nano-thermite will ignite and go off if exposed to high temp. fire or an explosion. No need for a detonator.
Am I correct here??
Technically speaking, thermite (or thermate if enhanced with sulphur) doesn't really explode. It burns like crazy (>1500C) which is, as opposed to jet fuel, hot enough to turn steel molten. It takes heat, and quite a lot of it, to initiate the chemical reaction. A detonator would work, as would a thermic fuse, a ribbon of magnesium or a seperate exothermic chemical reaction. I use potassium permanganate and glycerin for my demos to students. It generates quite enough heat to ignite the rust Fe2O3 and aluninum powder. Now, if the molten metal were to fall onto or come into contact with water, a steam explosion would probably ensue.
The energy released from a thermite reaction is impressive - on the order of 850 KJ/mole. Methane gas, for comparison is about 30 KJ/mole less. The energy needed to cause a phase change from solid to liquid(heat of fusion) in steel is about 272,000 joules per kilogram. The formula used to determine the mass of steel cut away or melted per gram of thermite is y = 7E-07x2 - 0.004x + 6.5597. See www.journalof911studies.com...
As a result of all this, I would be more confident is saying that thermate was used, rather than thermite.
[edit on 28-3-2010 by 4nsicphd]
Originally posted by Semus
I don't think that video is proof of anything at all.
I don't believe in the OS but that video is definitely not 100% proof of anything. It shows flashes of light, that's all it shows. Flashes of light can come from anywhere. As one poster mentioned, it could have come from flying glass shards that just happened to make it out of the shadow.
If there were explosions, this video is just too unclear to prove them. This reminds me of light's in the night sky that are so obviously aliens, but the damn video is so blurry that you are just unable to believe it.
I'm sorry folks, I see flashes of light, but I don't see proof of explosions anywhere in that video.
Again, I don't believe the official story at all, but give me something I can believe in. This is definitely not it.
Originally posted by mikelee
reply to post by spy66
My opinion is that the top part would need to be heavier to cause a collapse of the lower floors. Otherwise the lighter top section should have fell past the lower sections and left much of the lower section of the towers somewhat intact albeit damaged but still intact. I still have an issue with the inner steel core just vanishing the way it did. The inner structure of the towers by all accounts of those who designed it and built it should have remained intact in addition to providing support to those floors from falling.
I have watched every piece of building demolition I can find on the internet and at the 6 library's in my town and no where do they show the concrete turning to dust nor the manner of building collapse like we see in NYC. The WTC Towers collapse was suspicious in it's very nature as well as the total destruction of the towers also. Take care- Mike