http://www.youtube.com/watch?v=Bx1E2B5oAEs
Apparently, the media has told us that when steel framed
buildings get very hot, they EXPLODE VIOLENTLY just like
in a controlled demolition, so that all their steel columns tear
apart over dozens of floors (even floors that were not on fire
can even explode??? Why?) converting hundreds of
thousands of tons of steel into shredded metal or red hot
motel metal for over 6 weeks, and turning very strong concrete
floors completely into fine powder... EXACTLY like a well
planned controlled demolition!
Powerful stuff, this "jet fuel" (or kerosene)... even just a few
small fires on a few levels, can TOTALLY LEVEL giant
skyscraper buildings! Take a look at the evidence that air
fires, fed by jet fuel, can completely pulverise skyscrapers,
without the need for any explosives!
Look at this proof that jet fuel air fire can MELT STEEL!!!
Amazing!
http://www.youtube.com/watch?v=Qa7PN-8T2VY
http://www.truth911.net
.
2007-09-09 03:50:42 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Watch the excellent documentary asking
important questions about 9/11, which
have not yet been answered officially....
9/11 Mysteries (watch the full 90 mins)
http://www.911weknow.com/index.php?option=com_content&task=view&id=34&Itemid=31
Watch the 3 parts, and ask questions.
This film was narrated by Dr Judy Wood,
PhD (Mechanical Engineering).
2007-09-09 04:02:31 · update #1
Why not put these political rants in a non-engineering topic where people will tend to not question those delusions? In this one they are just annoying ignorance demonstrations.
2007-09-09 05:57:27 · answer #1 · answered by Rich Z 7 · 4⤊ 0⤋
alright, #1 your facts are wrong. Where did you get them? Hydrocarbon fuels can burn at temperatures up to 1600C. Even paper fires are about 800C. If the fire appears red, then its at least 800C. If is yellow its probably 1200C and if its white is 1600C or greater. Color of fire can be a good indicator of temperature. Heres how steel gives way under moderate fire temperatures. Lets just say that the fire from that jet fuel was hot, but not really hot for a hydrocarbon fuel, say 800-1000C. Definitely not enough to melt steel (some steels melt as low as 1148C, but we dont need to go there to explain this). Okay so now we consider what happens to steel at 800-1000C. The structure of steel is hard and strong because it has many deformations, sort of like tiny cracks and bends in the metal structure. These are put in place intentionally during heat treatments and/or cold working. When metals are heated up, the structure has more ability to move around and it resettles into a aligned crystal structure. The structure is not as rigid. In fact most steels less than 1.5% carbon will actually change structure back to gamma iron (austenite). Austenite at this teperature is soft and bends easily. This is why blacksmiths heat steel swords before they smash them. They are soft and more easily change shape. Now if you knew anything about material sciences before you asked the question you would have known that jet fuel would easily soften the steel. And considering the tons of concrete it was holding, the instant once bar began to bend because of lost strength, all of them would have because more and more weight would have been applied to each.
2016-04-03 22:36:32 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Oh for crying out loud. how many freaking times does this need to be explained?
The steel didn't have to melt. First off I worked 6 years in a metallurgical lab before I got fed up and started driving for a living. Steel, in it's natural form is soft and pliable. It can be literally pounded into different shapes while it's cold with a hammer. It doesn't get hard and become the steel you know it to be until after it's heat treated. If you heat it back up to anything over 800 or 900 degrees Fahrenheit, it reverts back into it's original hardness. It loses it's ability to hold it's shape, especially if it's holding up thousands of tons of building. Sure the building fell straight down, because that's the way gravity pulls falling objects.
Enough with the crazy theories. What purpose do they serve?
2007-09-09 04:09:32 · answer #3 · answered by Anonymous · 4⤊ 0⤋
Reported. This is a political rant, or at the very least, you can tell it's SPAM...obviously to promote the websites on the bottom. I've seen this same user post almost this exact same topic just 2 days ago. Terms of service cleary says YA is not a soapbox and not for you to promote your opinons and conspiracy theories. At the very least, post your rants on another forum. People come here to learn about real physics and engineering.
Sorry, normally I wouldn't care, but I'm so sick of conspiracy theorists. This is the 3rd 9/11 conspiracy theory I've seen here today. Enough is enough.
There are plenty of other sites and message boards where you can discuss this nonsense if you want.
2007-09-10 19:48:22 · answer #4 · answered by Diverging Point 6 · 0⤊ 0⤋
Apparently you believe the media...
Proof that you are an idiot!
2007-09-09 03:54:47 · answer #5 · answered by minitrail70 5 · 3⤊ 0⤋
Yes, I was aware of all of these facts.
2007-09-09 03:54:43 · answer #6 · answered by Charles C 7 · 0⤊ 0⤋
sad video
2007-09-09 03:57:18 · answer #7 · answered by nycznumba1coolguy@yahoo.com 2 · 1⤊ 0⤋
wo!
2007-09-09 03:54:48 · answer #8 · answered by Anonymous · 0⤊ 0⤋