Chris7 I looked again at this video (with David Chandler no less!).
http://www.youtube.com/watch?v=DChR1XcYhlw
I look at this and I see distinctly less dust ejections at the beginning and wider ejections a couple seconds later when the collapse picks up speed.
Only the color changes from black to gray but we will have to agree to disagree on that.
There are two things you did not comment on:
The explosions on the west side, above the impact point. Those are not caused by a collapse.
The top part is falling to one side yet the ejections are the same on both sides. That defies the laws of physics.
The only way to resolve the Police Museum plaque and the RJ Lee report is to go to the source and ask them. We could find out how much they actually knew when they said the things you and we quote.
You are not willing to accept that they know what they are talking about. You are not willing to accept any evidence of molten steel/iron.
RJ Lee supports both sides (you: vaporized lead and molten iron; us: it's to be expected)
No, it does not support both sides as I have noted several times.
They know that iron melts at 2800
oF and lead vaporizes [volatilize] at 3182
oF. Those are the high temperatures they are considering.
Considering the high temperatures reached during the destruction of
the WTC, the following three types of combustion products would be expected to be present in WTC Dust.
iron and lead were melted during the WTC event, producing spherical metallic particles.
The presence of lead oxide on the surface of mineral wool indicate the existence of
extremely high temperatures during the collapse which caused metallic lead to volatilize, oxidize, and finally condense on the surface of the mineral wool.
so who wrote these words and how accurate are these contradictory claims?
Those statements are not contradictory. You are assuming that the RJ Lee Group doesn't know what they are talking about. That is denial. The problem is in your refusal to accept these scientific facts.