The other day I learned that the National Ignition Facility uses actual cat whiskers. https://www.cbsnews.com/news/nuclear-fusion-60-minutes-2023-01-15/ https:

The other day I learned that the National Ignition Facility uses actual cat whiskers. https://www.cbsnews.com/news/nuclear-fusion-60-minutes-2023-01-15/ https://www.cbsnews.com/news/nuclear-fusion-60-minutes-2023-... > Michael Stadermann: All the components are brought together under the microscope itself. And then the assembler uses electromechanical stages to put the parts where they're supposed to go-- move them together, and then we apply glue using a hair. > Scott Pelley: A hair? > Michael Stadermann: Yeah. Usually something like an eyelash or is similar, or a cat whisker. > Scott Pelley: You apply glue with a cat whisker? > Michael Stadermann: That's right.