• Olhonestjim@lemmy.world
    link
    fedilink
    arrow-up
    3
    ·
    edit-2
    9 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.