Mattman, you are a retard. Plain and simple. If I ever had any doubts before this thread, they are now completely gone and vanished.Please, think with some common sense before you post, if that's possible. Almost 19,000 posts and I still have yet to see one that is well thought out and relavent.
I am not in the mood to type out long drawn out responses to every "scientific" claim you have made in this thread, but umm... lets see. In this post alone...
"some demolistions go sideways" Demolitions on buildings of more than 5 stories or so NEVER go sideways. Ever. Experts place charges so that building fall into their own footprints.
"NEver in History is that Gas Fuel would bring down Steel buildings." Putting your third grade grammar aside, yes, you're right. Gas explosions are not typically powerful enough to cause a steel structure to fail. However, the fires associated with those gas explosions can, and will severely weaken steel. Natural gas typically burns at 2000-2500 degrees farenheit. At 2000 degrees, steel loses over 90% of it's strength. I'm not a structural engineer, but I know that 10% of its original strength is not enough to support a 40+ story building.
"At the bottom of the twins towers, why were the glass blown out?" This is actually very common in demolition, not because of bombs or explosives, but because of simple air compression, and the same principle can be applied to the towers. Where you you think millions of cubic feet of air being compressed rapidly downward are going?
Oh, and here are my sources, though I didn't have time to document them correctly.
http://www.popularmechanics.com/technology/military_law/1227842.html?page=4
http://en.wikipedia.org/wiki/Demolition
http://www.energy.ca.gov/naturalgas/index.html