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Looking at the toilet paper, it's no wonder that stuff irritates 'roids, sometimes.
Tex
It is suspected that some of the hardest material known to science can be found in the skulls of GI specialists who insist that diet has nothing to do with the treatment of microscopic colitis.
Those images were great. I work with both SEM and TEM microscopes all of the time and they can be a lot of fun. It's amazing what you can see in such detail.
As far as the images shown, they are great but keep in mind that SEM and TEM do not really take any images in color, they can assign a color to a density or greyscale level to provide what's called false color, it does help you visualize what your looking at.