It appears that David Chandler has posted a new video, with some new "smoking guns".
http://www.youtube.com/watch?v=6_B_Azbg0go&eurl=http%3A%2F%2Fwww.911blogger.com%2Fnode%2F20938&feature=player_embedded#t=96
He makes 4 points. I'll use his quotes:
1. "Numerous explosions on the west side above the impact zone."
2. "The top 30 floors tips to the east. It starts off intact, and then disintegrates in midair. Gravity alone cannot cause the top to disintegrate. When an object is in free fall, there are no internal stresses. It should have hit the ground in one piece, but it didn't."
3. "Some of the debris are clearly being accelerated by forces other than gravity. These effects can be caused by late firing explosives, which can produce a white smoke trail. White smoke is a byproduct of a thermite reaction."
4. "Ran across one "rocket projectile"... This one stopped mid air & changed direction. Even taking perspective effects into account, this projectile lost one component of momentum & gained another."
This is astonishingly unobservant on his part. Looking at the video, it took a couple of minutes of viewing the video to come up with the following.
1. The smoke pours out of the upper stories for two reasons: Smoke rises. Look at the outside of the building. The smoke engulfs the upper stories. It does the same thing on the inside.
When the building leans, it fractures the windows. They don't like being twisted, pulled and bent. So they popped or broke. When the upper segment started to fall, it was not one piston sliding into a piston cylinder. It was two piston cylinders sliding together. The upper block was full of smoke, the windows were broken, and pressure starting to build up immediately started pushing the smoke out.
It didn't happen with the lower part of the tower because the lower part of the building wasn't twisted, the windows weren't broken until the pressure built up & popped them. Once one window popped, the pressure was reduced on other window nearby, and they didn't pop.
2. The upper block does start to tip. But it is NOT in free fall. And it is not isolate from the rest of the tower. There are still hundreds of internal connections between the upper & lower sections. Including the core. Ripping & pulling apart the building from the inside out.
Besides, Chandler cannot see into the opaque cloud any more than anyone else can. He sees one corner of the building, not the whole thing.He cannot see the process & characteristics of destruction.
3. This one is just plain silly. It is clear that lots of debris was thrown out of the building. Some of it at fairly high speeds. The "free fall speed" is true only for any object dropped or thrown with a perfectly horizontal velocity. But it is absolutely guaranteed that the ejecta had a whole range of vertical components to their velocities. Some up. Some down.
Any object with a downward velocity from collision will outpace the objects in pure free fall. This is clearly what Chandler is seeing, that he is describing as "jetting downward".
It is patently evident that the trail of smoke behind the object is NOT a rocket or jet pushing the object downward. The difference is obvious because the velocity of the smoke.
Because of conservation of momentum, a jet of gas (having much less "m") moves far, far faster than than the object that it is pushing. If this were a jet of gas pushing the object downward, the smoke would be jetting upwards at a far faster speed than the falling object.
In the case of an object covered in dust that is simply falling (or been thrown downward), the dust originally has a velocity equal to to the object to which it is attached. Once the dust peels off the object, it comes quickly to an almost complete stop due to air resistance.
The dust coming off of the objects CLEARLY falls into the second category. Side eddies of wind pick up the dust & move it immediately into curved shapes. You can see out the beginning & ends of individual boluses (boli?) of smoke. If this were fast moving jets of gas, they would be pushing thru side eddies in straight lines.
This is smoke coming off of the thrown objects.
Thermite is just plain dumb.
4. This is the same situation as 3 above. Except that it is even more blatant.
Chandler says that the object needs something to impress an impulse on it in order for it to change directions. Well, that's a big "Duh". What does he think that gravity is doing all during every part's trajectory?? It is applying an impulse.
Looked at from the center field bleachers, a fly to right field takes about the same trajectory. It is going up, then it stops and then it goes down. Big deal. Gravity applies an impulse.
But it does have a high horizontal velocity, which comes suddenly decreases to a low value. Gee, I wonder what could possibly apply a horizontal force to an object (most of them tall & flat) that is flying thru the air at high speed. Perhaps air resistance?? Perhaps something is tumbling, and suddenly it orients into a "high drag" orientation & quickly loses a lot of its velocity.
Then the object (having reached the peak of its trajectory) starts falling. Again, leaving dust behind as it falls. This is again clearly not a jet. It is dust that is peeling off of the object. It does NOT have a high upward velocity as a jet would, thereby pushing the object downward. If you compare the smoke's location to the buildings in the background, the dust is stationary. It comes off of the object with a bit of downward velocity (matching the object's velocity) and quickly comes to a stop in the air. Again, hit by side eddies of air, the smoke trail immediately forming curves.
Does anyone see anything different?
Does anyone know if Chandler works alone or in a group?
Tom
http://www.youtube.com/watch?v=6_B_Azbg0go&eurl=http%3A%2F%2Fwww.911blogger.com%2Fnode%2F20938&feature=player_embedded#t=96
He makes 4 points. I'll use his quotes:
1. "Numerous explosions on the west side above the impact zone."
2. "The top 30 floors tips to the east. It starts off intact, and then disintegrates in midair. Gravity alone cannot cause the top to disintegrate. When an object is in free fall, there are no internal stresses. It should have hit the ground in one piece, but it didn't."
3. "Some of the debris are clearly being accelerated by forces other than gravity. These effects can be caused by late firing explosives, which can produce a white smoke trail. White smoke is a byproduct of a thermite reaction."
4. "Ran across one "rocket projectile"... This one stopped mid air & changed direction. Even taking perspective effects into account, this projectile lost one component of momentum & gained another."
This is astonishingly unobservant on his part. Looking at the video, it took a couple of minutes of viewing the video to come up with the following.
1. The smoke pours out of the upper stories for two reasons: Smoke rises. Look at the outside of the building. The smoke engulfs the upper stories. It does the same thing on the inside.
When the building leans, it fractures the windows. They don't like being twisted, pulled and bent. So they popped or broke. When the upper segment started to fall, it was not one piston sliding into a piston cylinder. It was two piston cylinders sliding together. The upper block was full of smoke, the windows were broken, and pressure starting to build up immediately started pushing the smoke out.
It didn't happen with the lower part of the tower because the lower part of the building wasn't twisted, the windows weren't broken until the pressure built up & popped them. Once one window popped, the pressure was reduced on other window nearby, and they didn't pop.
2. The upper block does start to tip. But it is NOT in free fall. And it is not isolate from the rest of the tower. There are still hundreds of internal connections between the upper & lower sections. Including the core. Ripping & pulling apart the building from the inside out.
Besides, Chandler cannot see into the opaque cloud any more than anyone else can. He sees one corner of the building, not the whole thing.He cannot see the process & characteristics of destruction.
3. This one is just plain silly. It is clear that lots of debris was thrown out of the building. Some of it at fairly high speeds. The "free fall speed" is true only for any object dropped or thrown with a perfectly horizontal velocity. But it is absolutely guaranteed that the ejecta had a whole range of vertical components to their velocities. Some up. Some down.
Any object with a downward velocity from collision will outpace the objects in pure free fall. This is clearly what Chandler is seeing, that he is describing as "jetting downward".
It is patently evident that the trail of smoke behind the object is NOT a rocket or jet pushing the object downward. The difference is obvious because the velocity of the smoke.
Because of conservation of momentum, a jet of gas (having much less "m") moves far, far faster than than the object that it is pushing. If this were a jet of gas pushing the object downward, the smoke would be jetting upwards at a far faster speed than the falling object.
In the case of an object covered in dust that is simply falling (or been thrown downward), the dust originally has a velocity equal to to the object to which it is attached. Once the dust peels off the object, it comes quickly to an almost complete stop due to air resistance.
The dust coming off of the objects CLEARLY falls into the second category. Side eddies of wind pick up the dust & move it immediately into curved shapes. You can see out the beginning & ends of individual boluses (boli?) of smoke. If this were fast moving jets of gas, they would be pushing thru side eddies in straight lines.
This is smoke coming off of the thrown objects.
Thermite is just plain dumb.
4. This is the same situation as 3 above. Except that it is even more blatant.
Chandler says that the object needs something to impress an impulse on it in order for it to change directions. Well, that's a big "Duh". What does he think that gravity is doing all during every part's trajectory?? It is applying an impulse.
Looked at from the center field bleachers, a fly to right field takes about the same trajectory. It is going up, then it stops and then it goes down. Big deal. Gravity applies an impulse.
But it does have a high horizontal velocity, which comes suddenly decreases to a low value. Gee, I wonder what could possibly apply a horizontal force to an object (most of them tall & flat) that is flying thru the air at high speed. Perhaps air resistance?? Perhaps something is tumbling, and suddenly it orients into a "high drag" orientation & quickly loses a lot of its velocity.
Then the object (having reached the peak of its trajectory) starts falling. Again, leaving dust behind as it falls. This is again clearly not a jet. It is dust that is peeling off of the object. It does NOT have a high upward velocity as a jet would, thereby pushing the object downward. If you compare the smoke's location to the buildings in the background, the dust is stationary. It comes off of the object with a bit of downward velocity (matching the object's velocity) and quickly comes to a stop in the air. Again, hit by side eddies of air, the smoke trail immediately forming curves.
Does anyone see anything different?
Does anyone know if Chandler works alone or in a group?
Tom
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