Some of us are aware that -40° Celsius is also -40° Fahrenheit. It's the only point where the two scales agree.

But did you know there are palindrome temperatures and they're very useful also!

16° Celsius = 61° Fahrenheit
28° Celsius = 82° Fahrenheit

@atoponce The best way to convert from Imperial to Celsius is to invent a time machine and go back in time and shoot Reagan before he took office.
@Ralph058 @atoponce Nah, the American people wouldn't convert anyway. I mean, they invented a standard measuring cup instead of using units. Any units, basically.
@vonxylofon @atoponce
Fact:
The French invented the metric system.
Jefferson wanted the US to be founded on it (complete divorce from the king)
The standards were lost at sea. IDK why more weren't requested.
As recently as the 80s, a Frenchman looking out his window and seeing a lot of snow would exclaim (in French) "My God, tere's a foot of snow on the ground."