Here is his post literally:
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We have a TEST for the NUE-Fonze DBB Crush-Down, Crush-Up hypothesis!!!
http://www.ae911truth.org/flashmov2.htmThis demolition occurred in Philadelphia in 1999. It was one of the first top down demolitions attempted on a multi story building.
From the above video it looks pretty good for the scientist and calculations that did not match reality in the WTC collapses.
Now lets go to some other photos and see it the hypothesis stands:

Still looking good even though they uses a formula to work backwards from the end result and claim that proves the reason for the collapse (gravity not CD)!


The top block is rotating just like the WTC towers, a perfect test of the Crush-Down, Crush-Up hypothesis!!!

OPS! The top block keeps rotating, must not realize it is supposed to fall straight down when it starts crushing the lower section.

No problem , It looks like it pulverized the the lower section !!!!

Oh no! what's this? The Lowery section is not even damaged!
Nue-fonze, DBB , what happened?
ps. although this is nice stuff it seems that they exactly wanted it to collapse in that way, i.e. keep the bottom part intact, I thought they did a top-down collapse test here.