After finding the projectile that turns a sharp corner while trailing white smoke I looked for it in other videos and found it in several. The clearest is from a camera with a very similar perspective to the first, but in this video the trail can be followed to the bottom of the collapse. Here I explore the significance of this find.
South Tower Smoking Guns (Follow-up)
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 the while producing a trail of white smoke.
When we zoom in, and we can see that the path zig-zags, indicating multiple small explosions.
We can learn several things from the behavior of this projectile. First, it is clear that this chunk carries explosive material with sufficient power to drastically change its momentum in a short outburst. Secondly, it is clear that the smoke we see is not general smoke from the fires entrained 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 nanothermite burning and undergoing explosive outbursts.
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 girders, it is reasonable to assume that we are, in fact, seeing smoke coming from material painted onto 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. They 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 nanothermite in the World Trade Center dust, we are literally seeing nanothermite in action. Once our eyes are open, we can see it wherever we look.