Wow, now this is poor.
He harps on about conservation of momentum but he never actually calculates anything.
"But with no explosives (the “official theory”) and the law of conservation of momentum, material below the roof – including intact steel columns – must significantly slow the motion of the roof."
Significantly? How significantly? He could have typed a few numbers into excel and done this within minutes:
Code:
Floor Falling Vi Vf Vavg Time Cuml. Time
7 40 0.00 8.52 4.26 0.87 0.87
6 41 8.31 11.90 10.11 0.37 1.24
5 42 11.62 14.41 13.02 0.28 1.52
4 43 14.08 16.46 15.27 0.24 1.76
3 44 16.09 18.21 17.15 0.22 1.98
2 45 17.81 19.74 18.78 0.20 2.17
1 46 19.32 21.11 20.22 0.18 2.36
*
This uses a height of 174m divided into 47 equal floors of 3.7m.
Freefall from the 7th floor(25.9m) of WTC7 would be 2.30 seconds. If we then had the remaining top section(148.1m) pile up at freefall speed, that would take a further 3.75 seconds, for a total of 6.06 seconds. The same analysis done with a 13th floor start gives 6.38 seconds.
Freefall from 174m is 5.96 seconds.
Jones convieniently fails to mention the collapse of the east penthouse, which indicates that the core may well have been coming apart for a full 7 seconds before total collapse. Thus, many of the columns would have been 'moved out of the way' when collapse began. This also invalidates his claim of simultaneous failure.
When will he get some actual evidence?