Berkeley CSUA MOTD:Entry 43590
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2024/12/24 [General] UID:1000 Activity:popular
12/24   

2006/7/7-8 [Transportation/Airplane, Politics/Domestic] UID:43590 Activity:nil
7/7     Democratic Underground proves the 9/11 planes could not have taken
        down the WTC!
        http://csua.org/u/gcn
        \_ What a maroon.
        \_ Yes, I agree with them entirely.  It was the Greys with the help
           of their Bigfoot warriors lead by Elvis.  Everyone knows that.
2024/12/24 [General] UID:1000 Activity:popular
12/24   

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2009/7/24-29 [Transportation/Airplane, Politics/Foreign/MiddleEast/Iran, Politics/Foreign/MiddleEast/Others] UID:53194 Activity:low
7/24    Another plane crash in Iran in two weeks.
        http://news.yahoo.com/s/ap/20090724/ap_on_re_mi_ea/ml_iran_plane
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2008/8/6-10 [Transportation/Airplane] UID:50793 Activity:nil
8/6     Q: How to defeat a B-2 Stealth Bomber?
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        http://www.csua.org/u/m0x (telstarlogistics.typepad.com)
        \_ Whoops!
        \_ These kinds of mistakes happen more than you might think.  I read
           the black box account of a plane that had tape over the airspeed
	...
2012/10/22-12/4 [Politics/Domestic/California, Politics/Domestic/Election] UID:54511 Activity:nil
10/22   "Romney Family Investment Ties To Voting Machine Company That Could
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2011/7/26-8/6 [Politics/Domestic/California, Politics/Domestic/Election] UID:54144 Activity:nil
7/26    Oregon Congressman David Wu says he's resigning - Yahoo! News:
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2010/8/29-9/30 [Politics/Domestic/California, Politics/Domestic/Immigration] UID:53942 Activity:kinda low
8/29    OC turning liberal, maybe there is hope for CA afterall:
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        \_ Yeah, because CA sure has a problem with not enough dems in power!
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2010/2/11-18 [Politics/Foreign/MiddleEast/Iran, Politics/Foreign/MiddleEast/Others] UID:53704 Activity:kinda low
2/11    Iran declares itself a nuclear nation today:
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2009/8/12-9/1 [Politics/Domestic/California/Arnold, Politics/Domestic/California/Prop] UID:53268 Activity:moderate
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	...
2009/2/6-12 [Politics/Domestic/Election] UID:52532 Activity:nil
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2009/1/21-26 [Politics/Domestic/California/Arnold] UID:52437 Activity:nil
1/21    http://www.sacbee.com/politics/story/1560581.html
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2008/11/7-13 [Politics/Domestic/Election] UID:51881 Activity:very high
11/7    Obama's draft goes down the memory hole
        http://tinyurl.com/63mbfa (LGF)
        \_ Oh please, let me quote the GOP from when that pompous cybersec guy
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	...

	...
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csua.org/u/gcn -> www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=125&topic_id=56836&mesg_id=56836
Click to add this author to your Ignore list Wed Oct-05-05 06:31 PM Original message Can a jet fuel/hydrocarbon fire collapse a steel structure? Edited on Wed Oct-05-05 07:29 PM by spooked911 I set up the following experiment using steel rabbit fencing as the steel structure supporting a heavy cement block. Note, this fencing is easily bendable, has no significant rigidity, and was not reinforced in any way. Just inside where the gash was made in the outer wall, I placed a cup of kerosene (jet fuel), and there was newspaper around the bottom on the structure. Then I put a heavy cement block on top, weighing about 15 pounds. I don't think the wire structure would hold more than three of these blocks, so the "safety factor" was not particularly high. Then fire burned for about twenty minutes, and toward the end, I put my foot on the structure to see if it would extra weight. In a second experiment, I used the same wire fence and block set up, but increased the amount of "airplane damage", added in newspaper all around the inside of the structure, and soaked everything thoroughly with kerosene. In this expt, the fire was more intense and lasted significantly longer, but... What I conclude is that a fairly flimsy steel structure does not distort and bend and collapse very easily from a simple hydrocarbon fire. And thus, it is not clear why the much stronger steel columns in the WTC towers weakened so much from fires that the towers underwent global collapse. If kerosene/jet fuel/hydrocarbon fires can indeed cause steel structures to collapse, it should be quite simple to show this in an experiment-- right? Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.