the.com/coarseness
the texture you feel with fingertips and the manners you wince at, sharing one rough word
means The quality of being rough in texture, or crude and unrefined in manner, speech, or taste.
from From 'coarse,' which started life as the word 'course' — yes, the same one. In the late Middle Ages, 'cours' could mean ordinary or everyday cloth, the fabric of common 'course' rather than fine wares. From that 'plain and ordinary' sense it slid toward 'rough, crude,' the spelling eventually split off as 'coarse' to mark the difference, and '-ness' tacked on the abstract noun — so 'coarseness' is, at root, the quality of being merely run-of-the-mill, hardened over time into something rougher to the touch.
- engineering metric
- machinists measure surface roughness in micro-inches
- latin root
- derives from a word meaning ordinary, common cloth
- hidden grip
- too-smooth surfaces fail because friction needs some roughness
- sound design
- vocal coarseness signals threat across many animals
sandpaper grit scale — p36 coarsest for rough grinding, p600+ finest for polishing, iso/fepa standardized
mohs hardness scratching — talc is 1 (coarsest/softest), diamond is 10 (finest/hardest), measures mineral surface texture
flour grain size — whole wheat flour 50 micrometers average vs cake flour 40, affects bread coarseness directly