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9/11 WTC
Forensic Seismology: Force at Impact at the WTC

http://video.google.com/videoplay?docid=-1129338899798328171

Download this clip (NorthTower.mpg) and see if you can calculate the velocity of the drop of the WTC North Tower antenna as I have done in this video
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This is a great dissertation about our present day political situation, and the possible solutions to this dire situation, by G. Edward Griffin:
Freedom Force International is a network of men and women from all parts of the world who are concerned over loss of personal liberty and expansion of government power. They are not mere complainers. They have a plan to do something about it. They also share a common belief in The Creed of Freedom, which is a statement of principles that guide them in their mission to build a better world.
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Veterans for 911: A Study in the Physics of Freefall
A Study in the Physics of Impact.

====notes========
893 ft = 272.186 m
50700000 lb = 22997133.159 kg
93980083717.80002
====notes========

This is a study of the force of the impact of the WTC Towers, and the top 15 Floors alone, smashing into the ground, and it's relationship to seismic records.
Top 15 Floors Force at Impact Study
Even though the application of conservation of energy to a falling object allows us to predict its impact velocity and kinetic energy, we cannot predict its impact force without knowing how far it travels after impact.

If an object of mass m= kg is dropped from height
h = m, then the velocity just before impact is
v = m/s. The kinetic energy just before impact is equal to
K.E. = J.

But this alone does not permit us to calculate the force of impact!

If in addition, we know that the distance traveled after impact is
d = m, then the impact force may be calculated using the work-energy principle to be
Average impact force = F = N.

Note that the above calculation of impact force is accurate only if the height h includes the stopping distance, since the process of penetration is further decreasing its gravitational potential energy.
Source: http://hyperphysics.phy-astr.gsu.edu/hbase/flobi.html

 


   


Energy of top 15 floors in the chart below:

M A S S
VELOCITY

Energy of Top 15 Floors =


*





Source: http://www.1728.com/energy.htm
E n e r g y Ultra Calculator
Solves for Mass Velocity or Energy

Energy Release Comparison:

Energy Released by Top 15 Floors of WTC
Richter magnitude: enter value
Energy released: Joules
Equivalent yield: Tons of TNT
Earthquake power calculator: http://home.att.net/~srschmitt/script_earthquake.html

Energy released (joules)
Richter magnitude
first collapse- 8.912509e+7 2.1
second collapse 1.778279e+8 2.3
Top 15 Floors of WTC 8.118952e+10 4.0730

The Top 15 Floors of WTC 8.118952e+10/1.778279e+8 = 456.562 times more force than the second collapse


The top 15 floors of a WTC tower would impact the ground with about 456 times more force than was recorded by the Seismographs associated with the collpase of the WTC towers. Keep in mind, this is just the top 15 floors, there are 110 floors. Do you see a problem here?

Richter TNT for Seismic Example
Magnitude Energy Yield (approximate)

-1.5 6 ounces Breaking a rock on a lab table
0.6 18 pounds
1.0 30 pounds Large Blast at a Construction Site
1.5 320 pounds
2.0 1 ton Large Quarry or Mine Blast
2.3 3 ton Magnitude of quake of WTC building 1
2.5 4.6 tons
3.0 29 tons
http://www.seismo.unr.edu/ftp/pub/louie/class/100/magnitude.html

Date Origin
Time (UTC)
Magnitude
(Richter scale)
Time
(EDT)
Dominant
Period
Signal
Duration
Remark
09/11/2001 12:46:26±1 0.9 08:46:26 0.8 sec 12 seconds first impact
09/11/2001 13:02:54±2 0.7 09:02:54 0.6 sec 6 seconds second impact
09/11/2001 13:59:04±1 2.1 09:59:04 0.8 sec 10 seconds first collapse
09/11/2001 14:28:31±1 2.3 10:28:31 0.9 sec 8 seconds second collapse
09/11/2001 21:20:33±2 0.6 17:20:33 0.7 sec 18 seconds Building 7 collapse


The question: Is there enough energy in the collapse of the buildings to create a 2.1 magnitude with a 10 sec duration, and 2.3 magnitude with a 8 sec duration? Building 7 creates only a 0.6 magnitude with an 18 second duration. Why the huge difference in magnitude and duration between 7 and the WTC towers? Is that the difference you would expect in magnitude and duration? 7 barley shakes the ground, but has about 2 times the duration? That just doesn't make sense, does it? If the buildings caused the ground shaking, then one should see a predicable proportional difference between 7 and the WTC towers, based on the differing energies generated by the collapses. What is astounding is the fact that the energy released in the 2nd collapse, is 2 times the energy released in the 1st collapse, and the energy released by the collapse of WTC 7 is less than .30 % of either prior collapse. Someone crunch those numbers please. What is the energy difference between a 2.1 and a 2.3, and a 0.6? Exponential scale? Seismographic evidence courtesy of Columbia University Geology Department
http://www.ldeo.columbia.edu/LCSN/Eq/20010911_wtc.html

The differences in the energy released between WTC 1 and WTC 2 and WTC 7 is huge.
Richter magnitude: enter value First Collapse
Energy released: Joules 89125090
Equivalent yield: Tons of TNT 0.02130141

Richter magnitude: enter value Second Collapse
Energy released: Joules 177827900
Equivalent yield: Tons of TNT 0.0425019

Comparison of Energy Release of WTC 1 vs. WTC 2
joules of wtc 1/joules of wtc 2 = %
2 89125090/177827900 = 50.11% ,
There was twice as much energy released in the second collapse
89125090 (joules of first collapse) x 2 = 178250180
The question here is why would the Twin Towers not have Twin energy release?

Richter magnitude: enter value Building 7 Collapse
Energy released: Joules 501187.2
Equivalent yield: Tons of TNT 0.0001197866

Building 7 was about 1/2 the Height, and 1/3 the mass of the twin towers.
501187.2/177827900 = 0.2818 % = 501119
Less than one percent of the energy released by the 2nd collapse is released by building 7?
Earthquake power calculator: http://home.att.net/~srschmitt/script_earthquake.html


ERROR: 'Seismic Spikes Preceded the Towers' Collapses'
http://www.911review.com/errors/wtc/seismic.html

 


Conclusion:
The top 15 floors of a WTC tower would impact the ground with about 6 times more force than was recorded by the Seismographs. Keep in mind, this is just the top 15 floors, there are 110 floors. Do you see a problem here?

It looks like the earthquakes are way too small. Could that be because the mass of the buildings were dispersed by pulverization? Or is it due to inefficient transfer of energy to the ground? Or a combination thereof?

The buildings alone did not cause the release of energy, something else did, or a combination of the buildings and something else did.

Also trying to look at each floor as a separate entity, still working on that. I am not sure it is worth the effort.

As far as the "pancake theory" is concerned:
Of interest here is the fact that atmosphere alone would stop the top 15 Floors from accelerating just from drag, if you dropped it from above 12, 401 feet. This begs the question, how much would it be slowed down if it had to fall through the rest of the WTC tower?

The density of a WTC Tower is 371800000/59185152 = 6.28 lbs per cubic feet
Air density is 0.07 lbs per cubic foot

The density of the medium that a body falls through has an effect on it's Terminal Velocity.
A body will fall in a liquid slower than it will through a gas, and even slower through something solid. When stuff gets in the way, it slows down the thing moving through it, the more stuff in the way, the slower the body goes, if it is not stopped entirely. A bullet goes through the air faster than it goes through a 10 foot thick brick wall, when you move something it takes work/energy to do it. In the case of things falling, we know exactly what that quanity of energy is. This refutes the "pancake theory" in a solid and provable way, based on the bedrocks of Newtonian physics. Things fall slower when they fall through denser medium.


http://www.v911t.org/FreefallForceImpact.php

Another Study:
http://www.v911t.org/BombsWTC-Seismic.php

More on the Physics of 9/11:
http://www.v911t.org/911Physics.php


==============================
Below is the start of a study of the energy, treating each floor as a separte entity. What would a seismograph look like if the ground was impacted in such a manner as is listed below?

Height Energy Floor
413.21 6208394137.036001

109

409.42 6151450176.872

108

405.63 6094506216.707999

107

401.84 6037562256.543998

106

398.05 5980618296.379997

105

394.26 5923674336.215996 104
390.47 5866730376.051995 103
386.68 5809786415.887994 102
382.89 5752842455.723993 101
379.1 5695898495.559992 100
375.31 5638954535.395991---------------------- = 64534034136.571945 sub tot 99
371.52 5582010575.23199 98
367.73 5525066615.067989 97
363.94 5468122654.903988 96
360.15 5411178694.739987 ------------------------ = 27055893473.699935 95
356.36 5354234734.575986 94
352.57 5297290774.411985 93
348.78 5240346814.247984 ------------------------ = 27055893473.699935 92
344.99 5183402854.083983 <56943960.164001> <----------- this is the contant in - 91
341.2 5126458893.919982 90
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     


 

 

 









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