1. Mick West

    Mick West Administrator Staff Member


    Source: https://www.youtube.com/watch?v=SxntZh8FcNo


    The full NIST report on the fires and collapse of World Trade Center Building 7, NCSTAR 1-9, is nearly 800 pages long. Lots of people in the 9/11 Truth community dismiss it, but very few have even skimmed through it, let alone read the pertinent parts.

    Here I do the skimming through part. I do this to give you an idea of just how large and comprehensive it it. Even in this rapid-fire overview you can see the hundred pages they spend on precisely mapping the spread of the fires, and the hundreds more on investigating the possible causes of collapse via simulations. Feel free to pause at any point. All the pages are there.

    If you are going to form an intellectually honest opinion on the collapse of World Trade Center Building 7 then by all means read the information provided by Architects and Engineers for 9/11 Truth, and others. But intellectual honesty requires knowledge of other positions before you can reject them. At the very least you should start with the NIST WTC7 FAQ:
    https://www.nist.gov/el/faqs-nist-wtc-7-investigation

    And then watch the description of how they conducted the investigation

    Source: https://www.youtube.com/watch?v=PK_iBYSqEsc


    Then you will probably have questions. Be intellectually honest and unafraid. Do your own research. Read the NIST report:
    http://ws680.nist.gov/publication/get_pdf.cfm?pub_id=861611
     
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  2. Thanks for the link, Mick!

    Since the Husley thread, I've been thinking I should read it, but thus far I'd been too lazy to look for it.

    Now I've got no excuse.
     
  3. FFTR

    FFTR New Member

    Yes, I have read the NIST report. The finding of fire as the probable cause of the collapse seems reasonable to me.
     
  4. Mick West

    Mick West Administrator Staff Member

    A word of caution, it seems some people who think they have read the NIST report on WTC7 have actually only read the "Draft for Public Comments" version which was released on August 1 2008. The actual report has both volumes combined into one file, and was released on November 20th, 2008. Both versions are still available on the NIST site, but some other 9/11 related sites only have the older version.

    There are a few differences, but of particular note is section 12.5.3, the analysis of the collapse progression. This is quite a bit more detailed in the final version.

    So:

    20170928-144156-lrioj.
     
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  5. Mick West

    Mick West Administrator Staff Member

    One difference is in the diagrams showing the ANSYS damage output. The draft has a vector image, in the final this is replaced with a lower resolution bitmap which is harder to read, but also has the buckled beams differentiated from the "loss of vertical support" beams.
    Move slider to compare.

    20170928-145851-kbmt3. 20170928-145913-3uf6p.