What looks like an aerial shot of an alien landscape is actually a scanning electron microscope view of a test glass surface, acquired as part of a project to improve the lifetime of spaceborne atomic clocks, found at the heart of navigation satellites. Each sharp plasma-etched feature seen here is smaller than 10 micrometers—a hundredth of a millimeter—across.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/VwYW5K1
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