Community > Posts By > Ghostrecon
Topic:
Women deserve the truth
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Why don't you right to lifers adept the unwanted then. OH!!!!! Can't do
that now can you. Got your own little brewds to attend to. Then STFU!!!!!! |
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Can't say I'm sorry to see Ontroll gone. He started Chit with me a while
back for no reason. He's the reason they feel a need for Mods. I think ppl here just need to get a grip on themselves. If Ontroll is mess with ya, then just ignore him that's all. If he persists then just report him. Simple. Why do ppl need to cause drama just because a troll banters them? I don't get it. |
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Topic:
Moderators...
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Oh!!! I can hear that sucking sound again in here.
Everyone leaving due to Mods banning those who don't aspire to there agenda. Oh well. Guess they'll have to find another uncensored site. |
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Nothing but PUSSY!!!! LOL
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Topic:
Something wrong with me?
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No fool here Public. Just mind meld with their Pussy's and see where it
goes. |
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Topic:
Stop virtual strip-search
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Can I get a job as an X-Ray Technician so I can see threw women's close
for (Supposed Bombs) but really getting off on see then naked? Cool!!!!!! I don't care how much it pays either. Just as long as I can see some evil twat trying to smuggle some plastic boobs to blowup an airplane. |
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Topic:
Something wrong with me?
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Some time diet can have an impacted on Diabetes. So maybe no lost hope
there. maybe find a nurs that like to care for patients in your situation. or just live like me in Al Bundy's Heaven with beer and pizza every night and a bunch of hookers too. yeah!!!! |
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Topic:
Why is it......
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Hope that sheep is making you feel better dude.
Actually hopethe sheep is feeling it too. LOL |
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Building on Ground Zero
Web site launch date: August 24, 2006 Original PBS Broadcast Date: September 5, 2006 In a follow-up to the Emmy Award-winning documentary "Why The Towers Fell," NOVA looks back at the events of 9/11 and reviews the major investigations into the collapse of the World Trade Center. What did the Twin Towers' catastrophic fall teach us about how to improve the construction and security of our most important structures, both present and future? What challenges face architects, engineers, and builders? What obstacles prevent them from adopting new building codes? The film features incisive interviews with key investigators and engineers, including Leslie Robertson, who engineered the World Trade Center towers and takes viewers to the construction site of his current project in Shanghai, touted as the world's tallest structure. Here's what you'll find on the companion Web site: From Impact to Collapse Narrated by Dr. Shyam Sunder, lead investigator of the federal building and fire safety investigation into the disaster, this audio slide show details the series of structural, fire-related, and other events that occurred within the towers as they progressed toward sudden, catastrophic collapse. Above the Impact: A Survivor's Story Brian Clark was one of only a handful of individuals to escape either tower from above the floors where the planes struck. Here, Clark tells his riveting, vividly personal tale. Towers of Innovation They're gone now, but New York's Twin Towers featured many elements that were groundbreaking at the time: a basement like a bathtub, a building like a tube, and an elevator system like a subway system, among others. In this article, review the buildings' engineering marvels. Outfitting Firefighters The firefighters that raced up the stairwells of the doomed towers carried several dozen pounds of equipment, everything from axes and turnout gear to thermal imaging cameras and self-contained breathing apparatuses. In this feature, prepare firefighters for a high-rise response. The Structure of Metal Explore metal at the atomic level and discover how it's structured, why it bends, and what happens when it heats up. The Structure of Metal by Rick Groleau From carrying current on a computer's circuit boards to holding up skyscrapers, metal has countless uses, thanks to its special characteristics. It's hard and strong, yet it's bendable. It can be welded to other pieces of metal and rolled flat or hammered into shape. It conducts heat and electricity. It has a lustrous surface. At the atomic heart of metal is a crystalline structure -- tightly packed atoms arranged in orderly rows. This feature explores this heart and reveals what it is that gives metal its special characteristics and how metal behaves under the stress of heat and outside forces. Flash is a plug-in that allows for increased interactivity. If you can see the animated boxes at left, the plugin is already installed. If you do not see the boxes, you can install the Flash plugin or select this feature's non-Flash version. Rick Groleau is managing editor of NOVA Online. The Collapse: An Engineer's Perspective It wasn't until Dr. Thomas Eagar saw Building 7 of the World Trade Center implode late on the afternoon of September 11th that he understood what had transpired structurally earlier that day as the Twin Towers disintegrated. A professor of materials engineering and engineering systems at the Massachusetts Institute of Technology, couldn't find a structural engineer? Eagar went on to write an influential paper in the journal of the Minerals, Metals, and Materials Society entitled "Why Did the World Trade Center Collapse? Science, Engineering, and Speculation" (JOM, December 2001). In this interview, Eagar explains the structural failure, with complete confidence and no evidence whatsoever, what can be done within existing skyscrapers to improve safety, and what he believes the most likely terrorist targets of the future may be. Animation of a floor truss in the World Trade Center giving way. If they animated it, it must be true! Note that cross trusses, which ran perpenducular to the trusses shown, are omitted. The Collapse: An Engineer's Perspective It wasn't until Dr. Thomas Eagar saw Building 7 of the World Trade Center implode late on the afternoon of September 11th that he understood what had transpired structurally earlier that day as the Twin Towers disintegrated. A professor of materials engineering and engineering systems at the Massachusetts Institute of Technology, couldn't find a structural engineer? Eagar went on to write an influential paper in the journal of the Minerals, Metals, and Materials Society entitled "Why Did the World Trade Center Collapse? Science, Engineering, and Speculation" <../eagar_jom/eagar_0112.html> (JOM, December 2001). In this interview, Eagar explains the structural failure, with complete confidence and no evidence whatsoever, what can be done within existing skyscrapers to improve safety, and what he believes the most likely terrorist targets of the future may be. NOVA: After the planes struck and you saw those raging fires, did you think the towers would collapse? Eagar: No. In fact, I was surprised. So were most structural engineers. The only people I know who weren't surprised were a few people who've designed high-rise buildings; people who will remain unnamed so this assertion can't be verified . NOVA: But you weren't surprised that they withstood the initial impacts, is that correct? Eagar: That's right. All buildings and most bridges have what we call redundant design. If one component breaks, the whole thing will not come crashing down. I once worked on a high-rise in New York, for example, that had a nine-foot-high beam that had a crack all the way through one of the main beams in the basement. This was along the approach to the George Washington Bridge. They shored it up and kept traffic from using that area. Some people were concerned the building would fall down. The structural engineers knew it wouldn't, because the whole thing had an egg-crate-like construction. Or you can think of it as a net. If you lose one string on a net, yes, the net is weakened but the rest of the net still works. That's essentially how the World Trade Center absorbed an airplane coming into it. It was somewhat like the way a net absorbs a baseball being thrown against it. If you lose a couple of the columns, that's not the end of the world. It will still stand up. NOVA: The World Trade Center was also designed to take a major wind load hitting from the side. Eagar: Yes. A skyscraper is a long, thin, vertical structure, but if you turned it sideways, it would be like a diving board, and you could bend it on the end. The wind load is trying to bend it like a diving board. It sways back and forth. If you've been on the top of the Sears Tower in Chicago or the Empire State Building on a windy day, you can actually feel it. When I was a student, I visited the observation deck of the Sears Tower, and I went into the restroom there, and I could see the water sloshing in the toilet bowl, because the wind load was causing the whole building to wave in the breeze. NOVA: Are skyscrapers designed that way, to be a little flexible? Eagar: Absolutely. Now, there are different ways to design things. For example, Boeing designs their aircraft wings to flap in the breeze, while McDonnell Douglas used to design a very rigid wing that would not flex as much. You can design it both ways. There are trade-offs, and there are advantages to both ways. Most buildings are designed to sway in the breeze. In fact, one of the big concerns in the early design of the World Trade Center, since it was going to be the tallest building in the world at the time, was that it not sway too much and make people sick. You can get seasick in one of these tall buildings from the wind loads. So they had to do some things to make them stiff enough that people wouldn't get sick, but not so rigid that it could snap if it got too big a load. If something's flexible, it can give; think of a willow tree. If you have a strong wind, you want the building, like the tree, to bend rather than break. NOVA: Brian Clark ,one of only four people to get out from above where United 175 hit the South Tower (The New York Times (3/2/6) has identified 18 people) , says that when the plane struck, the building swayed for a full seven to 10 seconds in one direction before settling back, and he thought it was going over. Eagar: That estimate of seven to ten seconds is probably correct, because often big buildings are designed to be stiff enough that the period to go one way and back the other way is 15 or 20 seconds, or even 30 seconds. That keeps people from getting sick. NOVA: The Twin Towers collapsed essentially straight down. Was there any chance they could have tipped over? Eagar: It's really not possible in this case. In our normal experience, we deal with small things, say, a glass of water, that might tip over, and we don't realize how far something has to tip proportional to its base. The base of the World Trade Center was 208 feet on a side, and that means it would have had to have tipped at least 100 feet to one side in order to move its center of gravity from the center of the building out beyond its base. That would have been a tremendous amount of bending. Actually the top would only have had to tip 50 feet before its center of gravity cleared the building's core -- the gravity load-bearing component. The top of the South Tower had already tipped that much and, given the law of preservation of angular momentum, would have continued to tip more had it not disintegrated in mid-air. In a building that is mostly air, as the World Trade Center was, there would have been buckling columns, and it would have come straight down before it ever tipped over. The WTC's "air to steel" ratio was no higher than for any other modern skyscraper. Eagar's "mostly air" comment is nonsense; it's just more rhetoric intended to make the "collapses" seem to make sense, without using any real logic. All matter is "mostly empty space," but there are "solid" reasons why we can count on most objects to remain intact most of the time. Have you ever seen the demolition of buildings? They blow them up, and they implode. Well, I once asked demolition experts, "How do you get it to implode and not fall outward?" They said, "Oh, it's really how you time and place the explosives." I always accepted that answer, until the World Trade Center, when I thought about it myself. And that's not the correct answer. The correct answer is, there's no other way for them to go but down. This is a great discovery, Eagar. Demolition companies no longer will need to carefully place and time explosives to get a building to fall into its footprint. They will just need to start a fire. 47-story WTC 7, underwent a complete and systematic collapse even though it sustained no impacts with aircraft or large debris. It just had a few small fires that were barely visible. They're too big. With anything that massive -- each of the World Trade Center towers weighed half a million tons -- there's nothing that can exert a big enough force to push it sideways. This whole argument of the physics working differently because of the scale is nonsense. The strength of the structural elements is scaled up in proportion to the weight. Eagar wants it both ways -- the tower was at once very massive, and mostly air. In fact the towers had a high strength-to-weight ratio (in contrast to masonry buildings). Given the dense grid of long vertical columns in the tower's core, the collapse proposed would have caused the tower's top to topple from the crash zone, like a falling tree. But even if the core were completely severed at the crash zone, the intact portion of the core below would deflect the falling portion of the building away from the center. NOVA: I think some people were surprised when they saw this massive 110-story building collapse into a rubble pile only a few stories tall. Eagar: Well, like most buildings, the World Trade Center was mostly air. It looked like a huge building if you walked inside, but it was just like this room we're in. The walls are a very small fraction of the total room. The World Trade Center collapse proved that with a 110-story building, if 95 percent of it's air, as was the case here, you're only going to have about five stories of rubble at the bottom after it falls. NOVA: You've said that the fire is the most misunderstood part of the World Trade Center collapse. Why? Eagar: The problem is that most people, even some engineers, talk about temperature and heat as if they're identical. In fact, scientifically, they're only related to each other. Temperature tells me the intensity of the heat -- is it 100 degrees, 200 degrees, 300 degrees? The heat tells me how big the thing is that gets hot. I mean, I could boil a cup of water to make a cup of tea, or I could boil ten gallons of water to cook a bunch of lobsters. So it takes a lot more energy to cook the lobsters -- heat is related to energy. That's the difference: We call the intensity of heat the temperature, and the amount of heat the energy. Continue: The heat was much greater than might have been expected in a typical fire? NOVA: Many other engineers also feel the weak link was these angle clips, which held the floor trusses between the inner core of columns and the exterior columns. Is that simply because they were much smaller pieces of steel? Those angle clips! Well, I guess we'll have to take Eagar's word that the designers stupidly underengineered them, because the blueprints remain sealed and unavailable for inspection by the public. Actually they weren't "clips", they were brackets welded to the columns. Eagar: Exactly. That's the easiest way to look at it. If you look at the whole structure, they are the smallest piece of steel. As everything begins to distort, the smallest piece is going to become the weak link in the chain. dominoes, chain, ... how about house of cards. They were plenty strong for holding up one truss, but when you lost several trusses, the trusses adjacent to those had to hold two or three times what they were expected to hold. 9-11 was an inside job. Parts of it were first planned in the 1960 timeframe as a pretext for invading Cuba. Kennedy opposed it, but they got rid of him. Search "Operation Northwoods" on your favorite search engine. This mass murder was perpetrated by the same people who then demanded that we surrender our freedom so that they could protect us from terrorism. . The U.S. was poised to invade Afghanistan before 9-11 took place. What comes first, the cause or the effect? |
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What ever. I'm out of this drama. So Happy Holiday's People.
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Topic:
wiccan
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So is Satan not an evil force or just a miss conception? Again I refer
to the need for evil to survive in order for good to exist. |
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Topic:
How is everyone?
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Yes Mimi. All is cool tonite. How about thou?
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There seems to be a miss understanding that's all.
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Try a site to download all kinds of free stuff. From anti-Virus to MP3's
It's called majorgeek.com Good place. Also maybe try cnet.com for freestuff too. I think you may have to register with them. Not sure. |
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Topic:
How is everyone?
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Cool so far.
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I don't know what site your are refering to Bear, but you can bet a lot
of Prono sites have a lot of spyware and virus. I do a thought check on them and yes they are infected to the teeth. Great work. And let that be a lesson. But how ever a lot of them are aware of this rep. so they are taking steps to minumise the amount of problems. So I say porn away. Just keep your anti- virus and spyware up to date. Thanks. |
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Topic:
wiccan
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"I just want to take this chance to
point out one more time that while Satanism is a Pagan faith we do not follow it and my personal belief is that Satan was created by human kind to relieve them of the burden of guilt." Sorry Pool. Just confused by that sattement. So Pagans believe in a satan just not the same guy as Christians? You can see the confussion I hope. So what exactly is Satan then? Part of the Yang of Yin and Yang of the Toaist? |
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Topic:
Never Again Shall We Burn
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Maybe a peace of mind.
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Just an observation. Do you have anything Positive to post or are you
just out to try to scare ppl here? Me. Not a bit conserned. But I think you already know that by now, So I do like your posts but can you try to post something positive for a change? Like they lowered the price of pot or something. :) |
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Pagan just means they don't believe in the God of Abraham that's all.
Not anything to do with Satanic worship. Arabs use to believe in many Pagan Deities. Until Islam was introduced. But still many Born again Christians believe that Arabs still believe in their pagan Gods. Such Closed mindedness. They are stead fast in there convictions that they have the only way to salvation and all other's are miss guided or devil worshipers. I say let them browed in their little Idaho. As long as they stay there I'll be happy.LOL |
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