You truthers can play your MONKEY SEE THIS, NO SEE THAT game with photos and videos until hell freezes but it doesn't alter the facts.

I don't believe they embed water pipes and electrical conduit in concrete. Except for the steam pipes that supplied the base board convectors and the sprinkler system, the water supply in the twin towers did not extend into the office areas. Neither the steam pipes or sprinkler pipes were embedded in the concrete floor slabs. The sprinkler pipes obviously were located in the ceilings.

Hangar 17 at JFK airport was reserved to store selected artifacts from the WTC rubble, these artifacts were candidates for inclusion in the 9/11 memorial museum. The photos below are two views of a remnant of compacted floors that is now on display in the museum. The engineers and curators examined two such chunks of rubble and choose this one for the museum. Late in the clean-up, this piece, showing evidence of four floors compacted into a mass less than four feet in depth, was found buried deep in the rubble which suggests that it came from floors low in the building, probably in the sub level floors where foundation rebar could have gotten crushed into it.

Floors low in the towers and in the sub-level were not subjected to the violent disintegration that occurred in the higher floors, they did not come down from the heights the upper floors did, they were simply crushed by the immense compression forces of the thousands of tons of tower rubble that came down on them. It is not possible that this is the result of high explosives or thermite or nano-thermite or nukes.

But, you go ahead, payne, and noodle around with your BIG BOMBS and little fires pretending that impossible explanations are relevant to the real events on 9/11.

No... you claim the floors fell straight down like the PBS video...that's just not probable or maybe even possible... the evidence shows the outer floor truss connections all failed from shear impact from the top section outer frame columns impacting just inside the outer lower columns pushing the lower columns outward peeling the structure all the way down...there was no pile driver effect due to the massive shear overload causing the truss seats to fail in fractions of a second... this is exactly where chandler screwed up his math... his time sampling of 5 samples per second required 30 per second to achieve a true rate of fall... this simple fact underestimates the energy of the first impact 100 fold due to F=ma & underestimates every impact all the way down... Your Tony Stromboli tool used 6 samples per second where again 30 are required ... if you actually understood Newton's 2nd law of motion you would realize you have no argument & never did... All you prove a very vivid imagination & repetition... so once again chandlers pile driver theory following the 3rd law of motion is as far off as his simple hammer striking a 10 penny nail... in his example the nail stopped the hammer according to the 3rd law... close but no cigar ... reality proves chandler should have used a pin not a 10 penny nail for a true example of energy ending your pile driver block resistance explosive demolition theory of the lower section under the plane impact zone... get a life already...

In this photo we see an example of the magnitude of floor compressions that occurred during the collapse of the towers. In this remnant taken from the rubble, we see evidence of at least 3 floors compressed into a chunk less than 3 feet in depth.

The red arrows indicate the remains of concrete floor slabs. The blue arrows indicate truss rods, mostly likely the triangular support rods, and the orange arrows indicate remains of the metal floor pans and support flanges. The bottom orange arrow points to a main truss beam.