• Olhonestjim@lemmy.world
      link
      fedilink
      arrow-up
      0
      ·
      edit-2
      8 months ago

      Heh heh heh. Unit. Hehehe.

      But seriously, gauge blocks are fascinating; as are fine micrometers. Changes in temperature causing expansion drives home the inexactness of size. At certain scales it all becomes relative.