the steel in the basement was molten, and there were many instances of "meteor effect" where powdered concrete and molten steel merged.
No steel should have melted that day. Jet fuel - which had burned up in just a few minutes - cannot reach the temps high enough to melt steel. The pools of molten steel are one of the biggest smoking guns of the day.
Here is professor jones, showing the many tests he ran which exclude all known govt theories presented. The molten steel HAD to be created only thru explosives - fire cannot get it hot enough.
http://video.google.com/videoplay?docid=4884818450327382904&q=911+molten+steel&hl=enand:
Each WTC building collapse occurred at virtually free-fall speed (approximately 10 seconds or less).
Each building collapsed, for the most part, into its own footprint.
Virtually all the concrete (an estimated 100,000 tons in each tower) on every floor was pulverized into a very fine dust, a phenomenon that requires enormous energy and could not be caused by gravity alone ("…workers can’t even find concrete. ‘It’s all dust,’ [the official] said").
Dust exploded horizontally for a couple hundred feet, as did debris, at the beginning of each tower’s collapse.
Collapses were total, leaving none of the massive core columns sticking up hundreds of feet into the air.
Salvage experts were amazed at how small the debris stacks were.
The steel beams and columns came down in sections under 30 feet long and had no signs of "softening"; there was little left but shorn sections of steel and a few bits of concrete.
Photos and videos of the collapses all show "demolition waves," meaning "confluent rows of small explosions" along floors (blast sequences).
According to many witnesses, explosions occurred within the buildings.
Each collapse had detectable seismic vibrations suggestive of underground explosions, similar to the 2.3 earthquake magnitude from a demolition like the Seattle Kingdome (p. 108).
Each collapse produced molten steel identical to that generated by explosives, resulting in "hot spots" that persisted for months (the two hottest spots at WTC-2 and WTC-7 were approximately 1,350o F five days after being continuously flooded with water, a temperature high enough to melt aluminum (p. 70).