SFC Ollie
Still Marching
really ...you should learn to readduh
they dry labbed it to match their shit model. get some comprehension skills
"The analyses of the video (both the estimation of the instant the roofline began to descend and the calculated velocity and acceleration of a point on the roofline) revealed three distinct stages characterizing the 5.4 seconds of collapse:"
yep 3 stages, standing, falling, done. freefall for 2.7 seconds
That's the roofline......Not the interior of the building that started 9 seconds prior...