doc, he was fired for misrepresenting the company.. if someone was making stupid and all-around unknowledgeable statements, I wouldn't want that person working for me, either. in that letter alone, he's mistaken not only about the fire-proofing, but the melting points of steel. ..and this isn't some sort of opinion. these are scientific facts that he's wrong about.
NIST actually coordinated an investigation that consisted of experts from multiple fields, and from a scientific standpoint. call me gullible, but i'm willing to believe such a force of educated and experienced folks.
<DIV class=quote>
<DIV class=quotetitle>? quote:</DIV>
<DIV class=quotetext>Following pressure from technical experts, industry leaders and families of victims, the Commerce Department's
National Institute of Standards and Technology conducted a three year $24 million investigation into the structural failure and progressive collapse of several WTC complex structures. The study included in-house technical expertise and drew upon the knowledge of several outside private institutions for aid to include:
- Structural Engineering Institute of the American Society of Civil Engineers (SEI/ASCE)
- Society of Fire Protection Engineers (SFPE)
- National Fire Protection Association (NFPA)
- American Institute of Steel Construction (AISC)
- Council on Tall Buildings and Urban Habitat (CTBUH)
- Structural Engineers Association of New York (SEAoNY)
</DIV></DIV>
[list]
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A fact sheet from the report can be found
here, one of the entries that I think is more relevant right now is:
<DIV class=quote>
<DIV class=quotetitle>? quote:</DIV>
<DIV class=quotetext>
7a. How could the steel have melted if the fires in the WTC towers weren?t hot enough to do so?
OR
7b. Since the melting point of steel is about 2,700 degrees Fahrenheit, the temperature of jet fuel fires does not exceed 1,800 degrees Fahrenheit and Underwriters Laboratories (UL) certified the steel in the WTC towers to 2,000 degrees Fahrenheit for six hours, how could fires have impacted the steel enough to bring down the WTC towers?
In no instance did NIST report that steel in the WTC towers
melted due to the fires. The melting point of steel is about 1,500 degrees Celsius (2,800 degrees Fahrenheit). Normal building fires and hydrocarbon (e.g., jet fuel) fires generate temperatures up to about 1,100 degrees Celsius (2,000 degrees Fahrenheit). NIST reported maximum upper layer air temperatures of about 1,000 degrees Celsius (1,800 degrees Fahrenheit) in the WTC towers (for example, see NCSTAR 1, Figure 6-36).
However, when bare steel reaches temperatures of 1,000 degrees Celsius, it softens and its strength reduces to roughly 10 percent of its room temperature value. Steel that is unprotected (e.g., if the fireproofing is dislodged) can reach the air temperature within the time period that the fires burned within the towers. Thus, yielding and buckling of the steel members (floor trusses, beams, and both core and exterior columns) with missing fireproofing were expected under the fire intensity and duration determined by NIST for the WTC towers.
UL did not certify any steel as suggested. In fact, in U.S. practice, steel is
not certified at all; rather structural
assemblies are tested for their fire resistance
rating in accordance with a standard procedure such as ASTM E 119 (see NCSTAR 1-6B). That the steel was ?certified ... to 2000 degrees Fahrenheit for six hours? is simply not true.
</DIV></DIV>
the players tried to take the field
the marching band refused to yield