Miragememories
Banned
"Today I looked very closely at Fig. 25 of the Bentham paper, which shows post-DSC residue of some red-gray chip. It shows grainy and coarse particles as well as a few microspheres that are several µm across. This is accompanied by an XEDS chart that is supposedly taken from one of the spheres, with a dominant Fe-peak, and also much Si and a lower Al peak. Of course O and C, too:
[qimg]http://i1088.photobucket.com/albums/i328/MikeAlfaromeo/ActiveThermiticMaterial/ActiveThermiticMaterial_Fig25.jpg[/qimg]
This is a link to a greater magnification of the SEM image:
http://i1088.photobucket.com/albums...erial/ActiveThermiticMaterial_Fig25a_orig.jpg
What is interesting here?
-> The spheres are only medium gray!
Why is that intersting?
-> Because it's a BSE image! The brightness of spots in BSE images scales with the atomic number or mass of the predominating elements in thar spot. As we know e.g. from Fig. 4, 5, 8, particles or regions rich in iron (Fe, atomic number 26) appear bright, almost white, while regions dominated by Si and Al (atomic numbers 14 and 13) appear medium gray, and where there is only organic matrix (C, O; atomic numbers 6 and 8) we have a dark background.
..."
Again you appear to be guilty of attempting to extract more than is offered.
Are you suggesting that the Bentham authors were unaware of how BSE images are created?
That they purposely expected to fool the rest of the scientific community?
Your lengthy, poorly supported ramble, is strictly based on your expectation that dramatic brightness changes should be observable in the published BSE images.
You fail to consider how image editing and processing can easily render such an expectation meaningless.
The composite image above is comprised of a portion of Fig.25 (on the left), and Fig.5d (on the right).
To my eye, there is insufficient brightness difference between those two large spheres in Fig.25, and the gray chip shown in the bottom half of Fig.5d, to base your dramatic claims.
MM
