These hair fibers are my secret to hiding hair loss, and they're down to $19
Hair fibers aren't cheap (it's best to use them sparingly so they last and so they blend better). I like to stock up when ...
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Microscopy at the tip of a hair-thin optical fiber: New approach pre-shapes light for unprecedented control
Researchers at the University of Adelaide, as part of an international team, have developed an approach that makes advanced microscopy possible through an optical fiber thinner than a human hair.