why not examine the steel directly oh yes there isn't any at least there isn't any after it was hauled away to asia and melted down this investigation has been compared to conducting an autopsy without the corpse as of two thousand and five reported having only two hundred thirty six pieces of steel from the world trade center complex none of them unambiguously identified as being from world trade center seven we've all watch c s i anyone serious about solving a crime knows the importance of physical evidence yet here the crime scene was scrubbed the evidence was destroyed an investigation was delayed for years destroying a crime scene is itself a criminal act destroying the steel has absolutely no justification except to cover up the cause of the collapse so even if we knew nothing else about the events of that day we can see immediately there was a cover up knowing there was a cover up is a strong indication there was a crime someone wanted  investigation that does not acknowledge this basic fact is not really an investigation it's an extension of the cover up and this claims their computer model can account for the observed phenomena so let's look at  we can't the software they use to do the modeling is available but their model actually consists of all the numbers and measurements and assumptions together with any tweaks to the system they might have used to get it to come out the way they wanted if that information w released their results could be checked by anyone with the appropriate skills and software tools but nist has not released the numbers all we've been shown are some of the selected animated outputs they were able to get their model to produce is their model realistic we don't know some models are chaotic in the mathematical sense in other words tiny variations in the inputs might result in wildly different outcomes is nist model stable or chaotic realistic or contrived honester fraudulent we don't know we can't know without independent testing the very process of running the model until it produces the kind of result you're looking for is called selection bias if you think about it methodology is explicitly based on a selection bias even if you could show what might have happened it doesn't show what actually did happen the very fact that nist has not released their model strongly suggests they don't want their results checked in other words their results are intended to be taken strictly on faith if nist has not released their modeling data and their assumptions they have really not released their report and the fact that this is their final report indicates they do not intend to do so therefore on the face of it their report is little more than a fancy expensive cover up one fact we do know about in this model is it does not allow for free fall the best they could do is five point four seconds for the building to crumple down through eighteen floors crumpling absorbs energy and that makes freefall impossible there is nothing in the models we have been shown that even resemble a three stage collapse with a free fall component after all shyam sunder put it himself free fall happens only when there are no structural components below the falling section of the building any natural scenario is going to involve a progression of failures and these don't happen instantaneously so in the end we come back to where we were in the beginning on first impression we were looking at a classic controlled demolition claim to found a way it could have happened naturally but in fact they failed the only way they can support their claim is through a lie is secrecy and pompous but false pronouncements that constitutes a failed agenda explosive demolition is the only scenario that has been put forward that could actually account for the observations where does that leave us we have a building that underwent directly observable and now officially acknowledged freefall with no plausible mechanisms other they are explosive demolition we have an official investigation by a government agency that has fraudulent manipulated data has refused to even consider existing physical evidence that explosives were used they have wrapped themselves and their data in secrecy and offer conclusions to be taken on faith the nist investigation is a fraud and a farce we need a new fully empowered truly independent and open investigation first of all it was not single handedly and there are a number of people who submitted requests for correction is the term in writing to miss i did and several other people did as well and stephen jones played a role right there in the conference as you saw so there was not just a single handed anything the other side of it is i don't think that's necessarily true that what i did there forcing us to make this change because if you notice shame cinder pretty much blew off my question i mean he talked all around he eventually gave the rationale for why it couldn't have happened based on physical principles and so forth but he basically could have just dropped it there and let it go there are lots of lies in this document and why not one more why did they feel necessary it was necessary to come back and actually change their on their admission that it's free fall i've been pondering this and one of the things that i noticed was if you look at the fact that when stephen jones asked his question he asked why did you assume that it was constant speed versus constant acceleration and in a sense i had i noticed that same comment i thought it's hardly worth asking because it's clearly just a misstatement like it in the very next paragraph it says i mean there's an equation that's based on the assumption of constant acceleration so it's clear that they weren't acting on a constant speed kind of assumption that's just the word they use and they could have changed the word and been done with it but in the process of the of this conference john gross talked about this for about a minute in which he talked all around the subject and didn't really address it and somebody else the eventually came in and said i think we'll have to fix this in the document so in a sense right there on film they committed to changing the document however all they would have had to done all there would have had to have done was simply change the word speed to excel or ration and they would have fixed the document why did they do this complete reanalysis that seemed over and above i have a speculation and it's purely a speculation but i i think merit occurs to me that somebody at nist actually has some integrity probably a lot of people at nist have integrity and they were they didn't want to sign their names to this kind of a document there's good scientists at notice and they're being controlled by political hacks these guys at the top it's like the bush administration on many occasions overrode the science by political considerations and that was happening here so the people at the top were determining what was going to be in the report and i'm sure that the scientists who actually did have integrity were chafing under this on kind of a constituent and what i see is the possibility is that what stephen jones and i did was actually create an opening and somebody at nist picked up the ball and ran with it this gave them an opportunity they committed to do a change and this was their opportunity to actually do something real and they put in the change possibly i don't know for what happened i don't know the internal dynamics possibly john gross got pulled off of the committee or something that was doing this or something else i'm not really sure all the players and the roles they took but somebody did something there i just want to address this fact there are good people within this who need to come forward we need daniel ellsberg type people in this situation to come forward and make themselves known and make what they know public because this is what it's going to take to really this thing open we can point out flaws we can point out the obvious point out the physics and so forth but what it's going to take possibly to actually get some action on the nine eleven truth to actually see justice done is to have people who know what happened come forward and tell what they know when i first started measuring  the videos from nine eleven one of the first things i measured were high speed horizontally objections from the building and there are chunks of material that are obviously large heavy pieces that are plowing through the air at high speed many of them if not most of them are trailing very large plumes of white smoke and so these kinds of projectiles seem to be good candidates for things thrown out by explosions now it's not like a smoking gun to say since it's going horizontally it couldn't have been caused by gravity because when something's falling there are things that are bouncing around knocking into each other there's things that perhaps could flex and so forth however to get these large pieces of material that are rejected horizontally it is very suggestive of explosions and that's the easiest explanation  that seems reasonable by the way the video that we're about to see is a recent one i did it's a remake of some earlier videos i did i've been using some new tools i have a program called tracker which does it's a more powerful tool than physics took it and so i've been using that and some other things i have some references to these tools on my website these are all open source free tools you can download for yourself if you're interested in trying some of these kinds of measurements on your own we are told that the twin towers of the world trade center where we can buy your plane in packs and fire then came down in a gravity driven collapse just look at the supposed collapses it stretches credibility to even call them collapses these events resemble explosions even eruptions more than collapses we're not seeing the walls come tumbling down with the dust blown out to the side we are seeing massive projectiles thrown horizontally hundreds of feet by massive i mean multiple tons a single perimeter wall unit consisting of three fourteen inch square columns thirty six feet long connected by spandrels weight on the order of four tons some of these are seen flying outside the debris cloud reaching farther in the majority of the debris my very first personal investigation of the nine eleven events was when i watched the expanding debris cloud from the north tower on a d v d several years ago i paused the d v d took out a ruler and estimated the horizontal velocity of one of the debris streamers right on the television screen my rough estimate was about sixty miles per hour without measurement i was hooked i realized something very strange was going on i followed up with digital measurements on videos downloaded from the internet using a tool i had available of the time physics talk of some of my early measurements using low resolution videos were crude over time i have gained access to higher quality videos and better measurement tools so i decided to go back and redo my earlier measurements of projectile speeds first i looked at the westward moving projectile from the north tower that i had crudely measured on the television screen few years ago this time i got a reliable value of twenty five meters per second which translates to about fifty six miles per hour my original estimate was pretty close on a video of the south tower i noticed a large a long gated object moving like a javelin above the main debris cloud on the original video where i saw this object the camera was zooming the whole time which made the measurement difficult i recently found another video which shows the same projectile but taken with a stationary camera result twenty meters per second forty five miles per hour another high speed projectile was launched northward from the north tower late in the collapse toward building seven close up show the structure of the object which appears to be one or more  units this particular video footage was shot by rick siegel from across the hudson river you pan the camera a lot so the measurement was a challenge but i do compose the video into individual images and manually align the images to stabilize the video i use the stabilized video to do the measurements and got good uniform results thirty five meters per second or seventy eight miles per hour i repeated this measurement with other techniques and of consistently gotten results well over seventy miles per hour high speed massive horizontal projectiles may not be smoking gun evidence all by itself but it is a very suggestive of an explosive event it's another piece of the puzzle building seven as i measured as we talked about already came down at free fall and i was at the acceleration of gravity when i started measuring the north tower came straight down are pretty much straight down and so it's easy to measure it as well when i measured the roofline of the north tower it did not come down in freefall it came down close to two thirds of its point six four six or sixty four percent of freefall but in any case  one side did the measurement my first reaction was oh well it's not freefall and i set it aside but i came back to it later and i asked myself the question how long how much for how much kind of force is needed to slow it down so that it excel orating downward but at less than gravity and so i did the analysis using standard techniques that i do for you know when any body sets up a physics problem it's like taking the body that you're looking at in isolating it from its surroundings and apply all the forces to this thing called a free body diagram and once i did that i came up with a surprising result i wasn't anticipating this but it actually is a very solid  proof that the top section of this building was not what was causing the bottom section to collapse so let's watch the video and i'll have more to say afterwards this is the start of the collapse of world trade center number one also known as the north tower we are here tracking the motion of the roof line at two tenths second intervals through approximately thirty two meters or eight stories this graph shows the height of the roof line as a function of time analysis is simpler if we plot velocity as a function of time on this kind of a graph a straight line indicates constant acceleration first note that there is a sudden onset of collapse as the point we are tracking makes a sudden transition from being at rest to approximately constant downward acceleration the slope of the graph indicates that the acceleration is six point three one meters per second squared downward which is sixty four percent of freefall in other words once it starts falling the upward resistive force is only thirty six percent of the weight of the falling section of the building so far so good but now turn it around newton's third says interactions between objects work both ways the forces two objects exert on each other are always equal and opposite if the upward force acting on the falling block is thirty six percent of the weight of the falling block the downward force exerted by the falling block must be exactly the same thirty six percent of the weight of the falling block in other words the top section of the building is exerting less force on the lower stronger undamaged structure then it would if it were simply sitting motionless therefore as long as the top section of the building is in uniform downward acceleration it cannot possibly be providing sufficient force to destroy the building this may seem counterintuitive to you you might think a falling block coming down on the lower section of the building would exert a greater force than a stationary block but that is true only if the falling block actually impacts the lower block which would cause the falling block to be celery the only way the falling block can continue to accelerate smoothly as we see here is for the lower section of the building to give way without significant resistance if this rate of acceleration continued all the way to the ground the building would fall in about eleven point five seconds this is close to the observed collapse time so far i've been using the term blog loosely what we actually see here is the following section of the building turning to dust before our eyes but what is happening to the upper section of the building behind the dust clouds doesn't really affect this analysis given the fact that it is accelerating downward the top section of the building whatever its condition cannot possibly be destroying the lower section of the building the destruction of the building must be caused by something else ok let's look at this north tower one more here's the top section that comes crashing down and according to miss this crushes the lower section the building this is the north tower it has that antenna on top right now the key observation that i made was actually measuring the downward acceleration of and we found that it came down at about two thirds of the acceleration of gravity that's close to that ok now the fact that it's accelerating downward is the key observation and the the conclusion we came to is that this top section of the building exerts a force on the lower section of the building that's less than simply the weight of this by itself in other words it was giving more force downward if it were just simply sitting there than in the in in motion and that seems very counterintuitive to people but let's go through and just clarify how that comes about ok so we have we do what's called a free body diagram we are analyzing things in physics so this is just the top section of the building and let's look at the forces at work on the top section we have gravity downward this is the weight of the building which is preventing it from just free falling and so if i get what is the net force it's the downward force minus the upper four sorts am treating here minus the that ok this is the net force and that's equal this is newton's second law says the net force is equal to the mouse times it's acceleration but we know what the acceleration is it's two thirds the acceleration of gr rewrite this n g minus f is equal to m times two thirds of g now if i do a little fancy algebra and move the force over there on this thing over here i have the force this is the resistive force now is equal to the times here's the g on this side and i'm going to subtract this one so it's minus two thirds of g so if i have something minus two thirds of it i have one third of a laugh so i have one third of am g so the resistive force is roughly one third and this as you recall is the weight of this top section so the net force of upward force pushing on this block is one third of its weight and out turns around because of newton's third law if  upward force is a third of those things weight the downward force is a third of those things weight so this is pushing down less than if it were simply sitting there now how can that be in normal experience if you have something moving you would think you would hit something harder then if it were simply sitting there the problem is as it hits it would normally decelerate so if you hit your fist on the table the table is going to slow your fist down ok but here we have this thing is coming down and it doesn't slow down it accelerates right through the interaction it keeps picking up speed as though there is nothing there and that's the key idea there is nothing here because this has already been blown out of the way by something else so this observation the fact that this can continue to accelerate through the interaction tells us that the tower down here the lower section the building has been prepared to allow this to simply fall through it accelerating the whole way and that's the key so no this can crush the bottom section of the building with less force than its own weight that it's it's falling through a pulverized mass of material ok there's one other comment i'd like to make about this north tower is there there is the north tower and i want to credit tony's embodies a mechanical engineer from back east and it was a conversation with him that helped me clarify my own thinking about this the one of the problems with thinking of this as a block crushing this other block is you think of two solid objects hitting each other and somehow demolishing each other in the middle in fact it's a lot of hollow space and all we have are these columns that run the full length of the building there's about forty about there forty seven of these interior columns very heavily cross braced ok and then we have all these perimeter columns which are not just for show those are very solid supporting members as well but according to the nist theory this broke somehow here and then as they can as they come together this somehow crushed down the lower section of the building in order to port to crush these columns would have to hit head on with these c s sort of like hitting directly in line but in fact there's more of a tendency for them to sort of spirit past each other like this and so how would this actually crush this part of the building  this is been used to argue on both sides of this but what if they didn't just how would we could this top section of the building then just plow through and tear apart the core structure for instance of the bottom section and patani pointed out which is sort of obvious once you mentioned it is that as these things come together it's going to tear up the cross bracing of both the top section and the bottom section of the building equally and so by the time this top section has come down its own distance into the lower section of the building if this is what's happening then it's going to have basically shredded this whole interior structure we're not going to have a block left at all we're going to have a bunch of loose material and with all the stuff coming out the side there's nothing here to crush the bottom section the building and yet we see this crushed process goes all the way to the verge to the ground so i think what we can conclude is not a crushing process at all there's something else happening this little block up here is not capable of totally demolishing all of this structure below whether the national institute of standards and technology assumes that the following section of the north tower acted as a pile driver to destroy the core structure of the lower section of the building however the observation that the top section accelerated constantly downward contradicts this claim the clear implication of the physics is that the falling section of the building is not actually crushing the lower section it is falling into the rubble as the lower section of the building is being destroyed by other forces to check whether this analysis is correct let's do the same measurements for a known demolition the ball sack the tree demolition is particularly interesting for our purposes because instead of using explosives the columns on the middle floors of the building are collapsed using hydraulics the only destructive force thereafter is the impact of the upper section on the lower section of the building therefore we know that crushing not explosives is what is destroying the building the question we want to answer here is whether the predicted deceleration of the following section will show up in our measurements to make the measurements i'm using the program tracker and placing marks on the roof line of the building at two tenths second intervals to trac motion from the data we plot the velocity as a function of time the slope of this kind of graph gives the acceleration deceleration means the downward velocity would be reduced so the slope would have to turn around and actually rise left or right if we look at the graph of the loss of the vs time there is a downward slope of the first during this interval the top section accelerates downward until the two sections collide we can tell there is some resistance because the downward acceleration is less than the acceleration of gravity as the contact begins the slope becomes less steep however when the two sections of the building fully engage the slope of the graph turns around and actually rises indicating that the downward velocity is decreasing this is clear deceleration just as we predicted the graph of the ball sack the tree demolition is what one would also expect to see in the case of the north tower of the world trade center had the following section been responsible for crushing the lower section of the building the fact that the downward velocity continually increases tells us that the destruction we see is not due to crashing something other than gravitational collapse had to be at work to destroy the building the ball sack the tree demolition illustrates another important conclusion the impact destroys both sections of the building at the same time which is why the demolition team initiated the process in the middle of this two way destruction is a clear consequence of newton's third law which says that as bodies interact the forces acting equally in both directions had the top twelve floors of the north tower actually crush the lower section of the building the falling block would have been destroyed by the same forces and at the same rate as the lower section or even faster since the building was built progressively stronger at lower levels at most the top floors might have destroyed an additional twelve floors but the top section would have been consumed in the process leaving nothing to crush the rest of the building in the videos for i was measuring the roofline motion of the north tower you can only follow the roof line for a few seconds then it descends into a cloud of debris and so one question is does this uniform excel operation that we observe continue all the way to the ground and to get out that it's a little bit tricky because you can't follow the roof line or the top of the explosions even though whatever it is you can't follow the top all the way to the ground because  obscured so what i've done instead is i put a couple marks that run down the side of the building out to different rates one is actually which is free fall and the other is at sixty four percent of  which is the initial rate and one of the outcomes as we will see is that you know it does not continue uniformly all the way to the ground but then there's something interesting that happens along the way it's all just let you see that's when it comes up some time ago i did an analysis of the downward acceleration of the roof line of w t c one the north tower of the world trade center i was only able to track the motion through the first few seconds while the roof line was visible above the debris cloud i found that the drop of the roof line occurred with sudden onset and underwent a uniform acceleration sixty four percent of the acceleration of gravity i started the current project to explore whether the same acceleration continued all the way down or whether it changed as the destruction moved down the building i found the answer to that question but along the way i noticed something else that is perhaps even more intriguing but come to that unexpected observation at the end of this video one of the most conspicuous features of the destruction of the twin towers on nine eleven two thousand and one was the rapid rate of fall for most people her intuition tells them that buildings do not fall in on themselves especially that fast in any kind of natural event intuition does not have the last word in a situation like this but blindly accepting the contrary pronouncements of authority figures is a little better and perhaps worse as a guide to the truth we need to look for ourselves it is commonplace to hear that the twin towers fell at freefall speed as a point of clarification the rate of fall is characterized by acceleration not speed this is more than just a vocabulary question it involves a basic concept so let's pause for a little demonstration one tool i use for studying motion on video clips is a program called tracker it's part of the open source physics project and it's freely available on the internet what i'm going to do here is drop a soccer ball and record its motion to do that i have to add marks on each frame the program collects the positions from the pixel locations in the times from the frame numbers it displays the data in a table and a graph this graph shows the vertical position y vs time t for results is a picture of the motion of the ball spread out over time to translate the pixel positions to actual measurements i have to calibrate the image by marking something of known light in this video i'm holding a meter stick so by marking the ends of the meter stick program can figure out how many pixels on the video make up one meter in the real world another thing we can do is look at other quantities for instance if we plot the vertical component of the velocity vs time we get a graph that looks like this note that the position vs time graph for freefall is in the shape of a parabola in the velocity vs time graph is a straight line what's going on here is that when i let go of the ball velocity starts out at zero and increases downward by equal amounts in equal increments of time that produces a linear graph freefall would be a smoking gun for explosive demolition because it would indicate zero resistance building seven fell in actual freefall for over two seconds nist has grudgingly acknowledged this in their final report but has refused to even address the obvious implications in my earlier video i measured the rate of fall of the roof line of w t c one for the first few seconds while it was visible and found that it came down with constant acceleration sixty four percent of the acceleration of gravity and that video i showed the fact that the top section of the building accelerated right through it with the lower section is also a smoking gun for explosive demolition watch the video downward acceleration of the north tower i won't repeat the argument here in that video i noted that if the rate of acceleration persisted the tower would the proximately fifteen to sixteen seconds i wanted to understand the rate of fall beyond the first few seconds measuring the motion of falling clouds of debris is difficult so rather than a direct measurement i wrote a program to put two sets of markers on a video of the falling tower both start at the height of the roof line the blue mark descends at free fall the red mark descends at sixty four percent of freefall as we run through the clip it is clear that the top of the debris cloud does indeed lag behind both marks and even the heavy falling debris near the bottom falls at less than free fall because it is meeting air resistance so much for the original purpose of this project however along the way i noticed something else one feature is actually keeping up with the red mark your original downward acceleration of the roof line that's the sequence of the jacksons at the lower right on the west wall of the tower that means this wave of rejections is the fastest moving feature in the building's descent if anyone still believes these are naturally occurring puffs of air caused by some internal process such as collapsing floors it would need to explain how such a process could propagate so fast within the building nearly heaping pace with the heaviest debris falling only through air just a few feet away if one assumes the floors collapsed to blow out this much material and the leading wave of objections one would also have to explain how air pressure could be built up and maintain higher in the building for the other waves of the junctions that fall the fact is strong focused injections are hurrying on multiple floors simultaneously the theory that these are simply air being squeezed out the fire is both commonsense and any kind of honest analysis the most reasonable way to account for the rapid wave of rejections is to recognize them to be a time sequence of explosions designed to destroy the underlying structure of the building top to bottom such a sequence would not be limited by physical conditions in the building the downward motion of the explosions is merely a pattern designed purely for appearances to mimic a natural collapse and to stay hidden under the canopy of the polling debris if this was the intent it was not accomplished successfully as we can see perhaps the reason the leading wave of explosions propagate down the building at the same rate as the initial acceleration is they were timed that way on the assumption that the building would continue to fall at the initial rate all the way down that last point is just speculation of course but the measured outcome is not the two major results of my work are the acceleration of building seven and the acceleration of the roof line of building one the north tower however in the process of investigating the use i really looked at lots of smaller scale phenomena along the way some of these i call them smaller scale they're sort of individual observations and they're not trivial and some of these could be classified as smoking guns all in their own right so we're go a series of these now the first one started with some correspondence with graeme macqueen and i did tell the story i guess pretty well through the video itself but he observed some explosions coming through the corner of the building right where you'd expect it to be strong rather than through the windows so these are little puffs coming out but instead of coming out through the windows as you would expect would happen if they were  high pressure air or something like that out there coming out right through the corner of the building and i followed up from that and i think we basically have a stablished in the process and what we're looking at are literal cutter charges that are now that are being used to cut steel columns so on that's my outcome here's the video this is the north tower of the world trade center seen from the north side on september eleventh two thousand and one just as it starts to fall there are a massive injections of material about the ninety eighth floor many of us believe these are blasts from explosions that destroy the core columns allowing the building to fall however those who accept the official government story claim we are merely seeing dust and smoke being pushed up the windows as a result of collapsing floors it is hard to resolve this dispute directly because the co columns are not directly visible nearly hidden by all the spectacular rejections one small focus jet of material has special significance this little puff is not coming out of the window at all out of the corner of the building each corner of the building has two fourteen inch box columns connected to each other by large steel plates and covered on the exterior with aluminum cladding there are no corner windows the corner columns  structurally significant because they connect jason wallace some please and give the building three dimensional stability if anyone wanted to demolish the towers the corner columns would be natural targets the fact  emerges from the corner of the building is evidence in itself of an explosive charge but there is more notice that as the surrounding structure descends this little jet as it plays itself out remains fixed relative to the original structure of the building it does not move down with the falling walls and floors this suggests that we could be seeing the work of a cutter charge strapped to a column as the roof line moves down past the ninety eight floor surviving columns seen protruding upward from the debris cloud that sways outward but it does not fall for several seconds note that the top of this column exactly matches the height of the little corner careful measurements confirm this impression  mounting that we are seeing not only a cutter charge in action but the very column that is cut it column sways but it does not fall for a matter of seconds and then it abruptly enters freefall again careful measurements confirm this impression what's going on below that allows the column to suddenly drop there is another video and lower along the northwest corner of the building since we're looking for an event that happens at a specific time we need to find some way to synchronize the two videos fortunately there's an easily pinpoint a vent that is visible in both videos from the column we've been watching starts to fall it emerges from the shadows into bright sunlight then looking at the lower video we can see a very interesting event that correlates with the exact moment the column goes into freefall another focus jet cutting through the corner of the building in fact several objections are clustered on the corner within a fraction of a second of each other the hypothesis that we are looking at injections of dust and smoke as a result of collapse is no longer a viable these events are helping to cause the collapse it is clear that the focus corner jets are capable of cutting through steel if what we are seen is an example of explosive charges cutting through steel columns then it is clear that explosives were used in the building once we recognize explosives for  can see the entire event through new eyes a lot of my analysis has been focused on the north tower and building seven but i decided to look a little bit at the south tower just to see what i could see and so this next one is really just sort of a grab bag of things that are easily observable and there is a lot going on and it's just sort of a narration of what can be seen in the process i discovered something i had never noticed before and i'll do a separate follow up on that and so this will be a two part one here  first one of those calls south tower smoking gun and then a follow up this is the destruction of the south tower of the world trade center viewed from a helicopter to the south this particular video clip is rich in details that call the official story into question notice the numerous explosions on the west side of the building of the impact point as the top thirty floor section falls tips to the east it starts off intact but then it disintegrates in midair gravity alone could not cause the top section to disintegrate when an object is in freefall there are no internal stresses it should have hit the ground in one piece but it didn't some of the debris is 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 consisting of aluminum oxide is a byproduct of the thermite reaction producing this video i ran across one rocket projectile i had not seen commented on before this one stopped midair and change directions even taking perspective effects into account this projectile loss one component of momentum and gained another that requires an impulse note that the rocket trail does not point back guns earlier video entitle south tower smoking guns i pointed out a projectile near the end of the clip that moves to the right then suddenly turns through a sharp angle and moves downward at least from the perspective of the camera all of while producing a trail of white smoke for this object to radically change directions like this it had to experience a sudden impulse we know there was a large amount of unreactive nano thermite and the world trade center dust that was confirmed in a paper steel beams now thermite painted onto this chunk of material that explain the explosion produced in a sudden change of direction and i would also explain the white smoke trail when we zoom in we can see that the path zigzag indicating multiple small explosions once i found this projectile i look forward in the other videos i found in several videos from different angles but when shown against the backdrop of the white debris cloud it is very hard to see this is another video from a very similar perspective to the first in this shot the trail can be seen to persist all the way down to the bottom of the collapse we can learn several things from the behavior of this projectile first it is clear that this carries explosive material with sufficient power to drastically change its momentum in a short outburst secondly is clear the smoke we see is not general smoke from the fires and trained in the wake of a moving object since the smoke trail follows the object in all of its twists and turns it is clear that the smoke is being emitted from the object itself the most obvious interpretation of course is we are seeing the results of nano thermite burning in undergoing explosive outbursts once we see this clear example of an object trailing smoke generated on its surface we can reinterpret what we are seeing elsewhere there are lots of chunks of falling debris trailing smoke clouds in many cases we can see long beams with smoke being emitted from the entire length of the beam we no longer need to assume that this is smoke following in their wake when we see white smoke that looks as though it's coming from the  reasonable to assume that we are in fact seeing smoke coming from material painted on to the girders themselves when we see chunks that race ahead of the rest of the falling debris as we see near the bottom of this view we can reasonably interpret this as caused by explosive impulses to increase the speed of these objects just as they change the direction of the one we've been studying it is time to take off the blinders we have not only chemically detected  in the world trade center dust we are literally seeing nano thermite in action once our eyes are open we can see it wherever we look in the previous video i showed i focused on a projectile that would made a right angled turn and i talked about how there had to be an impulse this is fact it has to have an impulse of some kind but it was hard to see exactly what was happening and so i looked for other videos that had the same projectile in it and i found one that was i guess clear enough that i could sort of see what was happening but it wasn't very easy to display so i'd haven't made a video about that but my speculation and if it's not just speculation my assessment at this stage is that what was actually doing the right turn it was a composite meant object that broke apart and throwing one part to one side the other part took the right angle turn so it was actually injected in a subset of itself rather than just see ejecting gases ok in the process of looking for that i actually was distracted by a different projectile that in fact there's a number of these i just picked the one that was the clearest i actually saw a projectile that exploded basically split and then each of the parts split again so let's watch this one this is the south tower of the world trade center viewed from the southeast as it falls it tips toward the camera let's go back to the earlier explosion these explosions may seem small but the fact that there are explosions at all confirms the presence of explosives in the building this d v d has focused very much on the physics of nine eleven and basically it's a personal statement on my part this is the angle i i come at it because this is who i am and this is what i know and one of the things that amazes me is how i was simply a high school teacher have enough if i actually apply what i know there are so many things that are so clear about what's happening there are so many people out there i've talked to that are there much more knowledgeable about science either than even than i am and the typical result is they've never even heard the building seven came down they've never bothered to look at the evidence and it's like there's there's a very strong stigma that has officially been placed on this to call it conspiracy theory and to try to stigmatize any any interest in these events nine eleven really is an event that changed the world and it's changed everything since then it hasn't changed our fundamental values but it's changed the way our government interacts with the people we have the ongoing wars of nine eleven as some people have put it and as long as those wars are continuing to be fought there we can't just let nine eleven get swept under the rug because this is where these things come from we've killed over a million people in iraq that's a statistic that the papers don't tell you but it's been researched multiple times by reliable institutions we have killed over a million people in iraq it's not just that they have killed each other  this is an atrocity on their huge scale and this is something that we cannot just let go there are so many angles to this i have come out of from the point of view of science there is the political science there is the sociology there's the question of how come official science like the people involved with nist have been manipulated the way they have to take good scientists with integrity and be able to use their talents and stamp it with a political agenda and how this how people can allow this to happen with their life's work who am i speaking to i'm speaking to the general public whoever house anough interest in these events to have watched this video through but i'm also speaking to people how backgrounds in science that if you actually look and ask the questions the kinds of things i have done or if you have expertise in other areas look into this from your own particular particular perspective i specifically am encouraging people who are involved in official authoritative science such as in the us to evaluate your life's work daniel ellsberg as an example of someone who found it necessary to step outside the norms of what was expected of him in order to have a life that he could he could live with himself and i i really am hoping that some of you who are perhaps watching this video if you have knowledge really happened that you will make yourselves known man share this with the world this is something that has not been resolved yes it's a few years ago but the wars of nine eleven are continuing