the.com/burns
What fire does to flesh and what whiskey does to throats.
means Injuries from heat, flame, or chemicals — or the act of something combusting or scorching.
from From Old English byrnan and bærnan, twin verbs for catching fire and setting it — English long ago decided one word should do both jobs.
Degree systemFirst, second, and third describe depth, not heat.
Sunburn countsUltraviolet light cooks skin without any flame.
Poet's claimRobert Burns lent his name to Scotland's whole national supper.