Did you read about the way Fahrenheit ended-up with his amazing temperature scale?
I read that one day I was wondering 'WTF'?
So, apparently, for the zero he measured the T of a mixture of water, ice and brine...
To start with.
A mixture? What proportions? Which brine? Which concentration for the different salts in the brine? Were there pickles in it? Most importantly: WHY?????????
And for the 100 he measured the T under the armpits of his wife.
Of course.
At what time of the day? Did she just wake up? Did she eat? Did she have the flu or her periods or something?....