I'm posting it on my blog, hope that's okay.

As far as I can see, the thermal expansion of steelbeams is relatively small!

(I'm not an engineer or physicist, so please correct me if I have misunderstood this completely)

The coefficient of linear expansion of steel is 12 * 10^-6 * K^-1 (Source: http://hypertextbook.com/physics/thermal/expansion/)

and here is an automatic calculation of thermal expansion (where we apply the coefficient for thermal expansion of steel):

http://www.ajdesigner.com/phpthermalexpansion/thermal_expansion_equation...

The result for a 16 meter steelbeam wich is heated from 20 degrees celcius to 800 degrees celcius (wich, I guess, is far more than could have been the temperature of the steel in WTC 7 due to scattered and moving officefires) is:

0.14976 meters (app. 5.8 inches).

IS THIS ENOUGH TO EXPLAIN THE DRAMATIC EFFECTS SEEN IN WTC 7?

(Conversion table for measures is found here: http://www.convert-me.com/en/convert/length )

Would someone who knows about these things please check and lay out the officiall standards of safety in steelbuildings, please?

An often used argument from the "debunkers" is that there off course is a reason why the steel is protected with fireproofing - but that fact doesn't mean that the problem envsioned is a total collapse. Couldn't it just be, that those who design the safety of a steelbuilding want to prevent even small parts of the building getting loose and falling onto occupants, firefighters and in general causing (even limited) damage to the parts of the building involved in the fires, which could be difficult, expensive and labourconsuming to repair?! Remenber those steelframed highrises which where taken back into use even after severe fires! ( fx. http://911research.wtc7.net/wtc/analysis/compare/fires.html )

WHAT RIDUCULUS STATEMENTS FROM NIST ABOUT WTC 7 !! - STEELBUILDINGS DO NOT COLLAPSE COMPLETELY FROM ORDINARY FIRES!

I would soon expect all combustuable materials to be remove from steel skyscrapers...not to mention microwave ovens which have a tendancy to start popcorn fires.

"Liars....liars...pants of fires"...oops, there goes another skyscraper - NIST's new motto.

If I ever get into an email discussion with a proponent of the NIST fairy tale, this would be a great link to send so they can back up their view with reliable information. ;)

NIST’s new findings on the collapse of Building 7 due to “Thermal Expansion” shows that we are in serious trouble!

NOT ONLY will every office fire now be capable of completely destroying EVERY building in a symetrical progressive collapse, BUT also, any space heater will collapse; your engine block in your car will now collapse; your toaster and your oven will collapse; welding machines will collapse; your frying pan will collapse; the Space Shuttle will collapse!

Those aluminum folding chairs you take to the beach? THEY WILL COLLAPSE!!! oH DEAR GOD!!!

Aunt Thelma’s replacement hip… will collapse! Poor Aunt Thelma.

Anything previously designed to operate under hot conditions (including your personal vibrator), that have seemingly behaved in the manner predicted in the past…. ALL MUST NOW BE SUSPECT FOR COMPLETE COLLAPSE!!

Why!? Why!!!! Why didn’t SOMEONE… ANYONE just LOOK at the “loosening-the-metal-jar-lid-under-hot-water” theory??? Oh the tragedy!!! Oh the HUMANITY!!!! ***weep weep weeeeeeep****. (weep).

Oh thank you, thank you, thank you Shyam Sunder… for looking out for us in this way. Thank you ever so much for doing your job and looking out for the best interests of the American people. NIST has REALLY earned their $20 million dollars for this one, huh?

GREAT WORK! FIVE STARS!

With you in the struggle,
Bruno
WeAreChangeLA - http://www.wacla.org

Thanks!

(I know you have to make a selection but you should also include the Journal of 9/11 studies to the references)