Question about structural beams, and columns ;) Options

[forester]

the structural beams of the wtc and all buildings are designed to be able to hold up the weight of all the beams above them.

at the wtc towers, after the planes hit, many of the beams were severed. this puts a lot more of the weight of the building on the undamaged beams.

question 1: how many beams MUST stay intact for the buildings to stay up?

question 2: if the section of the towers above the impact does collapse due to the beams in the damaged section nolonger being able to carry the above weight, can the beams below the damaged section literally catch the fall of the collapsing section and keep the building up? i took physics many years ago but im sure their is an equation to figure out the weight or kinetic energy of a mass after it falls several feet.

if the section above the plane damage did indeed collapse, the undamaged section below it would have had to be able to hold up all the weight above it multiplied by its velocity...i assume. considering this, is it logical to expect the undamaged floors to be able to hold this weight? is there any precident for this?

[Roark]

So how did the steel melt without loosing all its strength first?

[Sanders]

So how did the steel melt without loosing all its strength first?

I haven't read this whole thread (just the last few posts actually), so forgive me if I'm not on the same page .... but there almost certainly wasn't any melting of any steel that day. Steven Jones' research and the evidence he has presented all point to the use of Thermite to cut columns (or, specifically Thermate). Steel beams sticking up out of the rubble with 45 degree cuts slobbered with slag, or bright orange lava-like stuff pouring out of the side of the building in that video clip does (less than) nothing to disuade me from agreeing with his conclusion of course (IMG:http://pilotsfor911truth.org/forum/style_emoticons/default/rolleyes.gif) .

But that stuff ain't steel - it's molten Iron. Molten iron and aluminum oxide (emmited as a cloud of whitish-grey dust) are the two main by-products (along with extreme heat) of the Thermite/Thermate chemical reaction.

[Leslie Landry]

I haven't read this whole thread (just the last few posts actually), so forgive me if I'm not on the same page .... but there almost certainly wasn't any melting of any steel that day. Steven Jones' research and the evidence he has presented all point to the use of Thermite to cut columns (or, specifically Thermate). Steel beams sticking up out of the rubble with 45 degree cuts slobbered with slag, or bright orange lava-like stuff pouring out of the side of the building in that video clip does (less than) nothing to disuade me from agreeing with his conclusion of course (IMG:http://pilotsfor911truth.org/forum/style_emoticons/default/rolleyes.gif) .

But that stuff ain't steel - it's molten Iron. Molten iron and aluminum oxide (emmited as a cloud of whitish-grey dust) are the two main by-products (along with extreme heat) of the Thermite/Thermate chemical reaction.

lol Well, dito...i have only read your post to be quite honest..i want wanted to write this before i forgot.

OK..so, i need to get what you are saying more clearly...and if i say it wrong..please correct me. Are you saying that it was determind by Alex Jones that it was not a C.D. and infact, the Molten Metal found was from taking down the rest of the building??