RandyBrian wrote:
In addition, the impact did not destroy the towers. The crucial damage was done by full tanks of aviation fuel burning at thousands of degrees of heat weakening/softening the supporting structure of the buildings. Physics in action.
Actually only about half the jet full exploded into a fire ball, gallons of it poured down the stairwells, elevator shafts, and air ducts. Firefighters mentioned smelling jet fuel in the ground level lobby and people descending the stairs said they waded in it.
The tower offices were loaded with combustibles - paper, cardboard, plastics, fabric, wood, oils, lubricants, alcohol, cleaning solvents, tanks of pressurized gases, even thousands of butane lighters.
The fire ball lasted about 10 or 12 seconds, but it ignited fires on multiple floors. In addition, the aircraft impact caused floors both above and below the impact zone to collapse. A man in an office 6 floors below the impact zone in the North Tower phoned a NY news station and told them he and another guy were trapped and the place was filled with heavy smoke. He said it seemed the building came down all around them. They never made it out.
Temperatures of the fires in the towers reached 1800F in some areas.
At 800F steel begins to weaken, and at 1200F it loses 50% of its strength.
When heated, a free standing steel beam will expand longitudinally.
When heated, a load bearing column cannot expand along its length so it will warp and buckle, then break.
The notion that the WTC buildings were destroyed by controlled demolition is entirely foolish speculation.
In order for an explosive charge to severe a steel column, the charge must be securely attached directly to the steel itself, it must be either clamped, strapped, or heavily taped onto the column. This requires direct access to the column, and to gain direct access walls, elevator shafts, air ducts, plumbing, electrical and cable conduit and pipes, and any other obstacles must be opened or otherwise breached.
There are a million questions about the CD theory no 911 "inside jobber" has ever been able to answer.
The t***hers claim the buildings were r****d for a controlled demolition with explosive charges planted on every floor. What they don't tell us is how this was accomplished, and how the continuity of complex firing circuits was maintained when the jets blew out a dozen or so floors. The jet crash itself would have detonated or destroyed any explosive charges while at the same time destroying firing circuit continuity. The fires would have detonated or destroyed explosive charges, and it is telling that no explosions occurred above the impact zone.
The "troofers" are free to believe their fantasies about 9/11, but as one investigative journalist who wrote a book about al-Qaeda and 9/11 said, "the plan for the 'Planes Operation' conceived by Khalid Sheik Mohammed was brilliant."
But that is another story altogether.
Every 9/11 t***her should read:
The Commission: The Uncensored History of the 9/11 Investigation In a work of history that will make headlines, New York Times reporter Philip Shenon investigates the investigation of 9/11 and tells the inside story of most important federal commission since the the Warren Commission. Shenon uncovers startling new information about the inner workings of the 9/11 Commission and its relationship with the Bush White House. The Commission will change our understanding of the 9/11 investigation -- and of the attacks themselves.