daws101
Diamond Member
- Banned
- #241
answer #1 the whole south side of wtc7 was peeling away no imagining neededDavid Chandler is trained in Physics, are you?most of them are not at all trained in physicsIt's you, as always.
What do you imagine you know about Physics that hundreds of professionals at A&E 911 Truth don't? Tell us how gravity alone produced free fall acceleration during Stage 2 (1.74 to 4.0 seconds) of WTC7's collapse through the path of greatest resistance?
to answer you second non question..it didn't for 2.5 sec or there about the north façade met no obstructions so it was no longer the path of most resistance.
"After the east penthouse collapsed, several seconds elapsed, then the west penthouse began to collapse, at nearly the same time the roofline of the building developed a kink near the center, then all support across the entire width of the building was suddenly removed, a vertical swath of windows under the west penthouse were simultaneously blown out, the building suddenly went limp, and (within a fraction of a second) it transitioned from full support to freefall.
"I am not using the term 'freefall' loosely here.
"I used a video analysis tool to carefully measure the velocity profile of the falling building using CBS video footage from a fixed camera aimed almost squarely at the north wall. A video detailing this measurement is available at YouTube/user/ae911truth. I calibrated my measurements with the heights of two points in the building provided in the NIST Building 7 report released in August 2008, so I know the picture scale is good.
"My measurements indicate that with sudden onset the building underwent approximately 2.5 seconds of literal freefall. This is equivalent to approximately 8 stories of fall in which the falling section of the building encountered zero resistance.
"For an additional 8 stories it encountered minimal resistance, during which it continued to accelerate, but at a rate less than freefall."
Freefall and Building 7 on 9/11
When you say "...for 2.5 sec or there about the north facade met no obstructions..." what do you imagine caused that?
What obstructions was the south facade meeting over those same eight floors?
answer#2 since the whole south side was falling away the resistance was negligible.