526
metric rule
(lemmy.ml)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
That implies 0F is either
A - Zero hotness at all, so as cold as you can imagine
B - Zero feeling of hotness, or an ideal room temperature
I don't think either of them are true. Really, that mnemonic only starts working above 70 if you ask me.