So the researchers took a closer look at the scales using a scanning electron microscope and similar tools.
For this new research, they examined the submicroscopic properties of mammalian blues, using an electron microscope and other tools to look at skin from the scrotums of a vervet monkey and two opossum species, as well as a mandrill's face and rump.
CD4+ and CD8+ T-cells were quantified in total longitudinal optic nerve sections, using a Zeiss Axiophot2 microscope and measurement tools as described above.
As first an artist in residence and now a research scientist at M.I.T., and now also a senior research fellow at the Institute for Innovative Computing at Harvard, she helps researchers use cameras, microscopes and other tools to display the beauty of science.
Over the years, it has collected a big portfolio of companies in all kinds of industries, including network analyzers and makers of microscopes and hand tools.
Beginning in 1700, eggs were regarded as natural history objects to be studied in museums; then as physiological and anatomical objects to be analysed into their parts with microscopes and other tools; then as embryonic chickens, to be experimented upon in laboratories; and finally, in the 20th century, as commodities to be re-engineered by technoscience.
Using electron microscopes and other tools, the team discovered that the samples contained bacteria and micrometer-sized particles of a zinc-sulfide mineral called sphalerite.
Researchers had to sift through 100 square-meters of forest floor for every four or five of the rare specimens, then use a high-power microscope and micrometer measuring tool to note variations in size, the shape of their mandibles, and patterns of hair on their exoskeletons all defining characteristics of individual species.
Several aberrations (e.g. astigmatism, §2.2) can be corrected by calibrating the electron microscope, and for these, diagnostic tools are sufficient.
Thickness of the Al foil (H1), thickness of the CH layer (H2), and cross-section of the dual-layer target were characterized by a QC-5000 tool microscope and a scanning electron microscope (SEM).
