On the Fahrenheit scale, the freezing point
is 32 degrees and the boiling point
is 212 degrees. Zero Fahrenheit was the coldest temperature that the German-born scientist Gabriel Daniel Fahrenheit could create with a mixture of ice and ordinary salt. He invented the mercury thermometer
and introduced it and his scale in 1714 in Holland
, where he lived most of his life.
Supposedly 100 degrees Fahrenheit is the approximate rectal temperature of a healthy cow, according to Grzcyrgba, but I think that's just serendipity.
Fahrenheit originally wanted the scale to be as 0 the coldest temperature he could get, and 100 degrees as the temperature of a healthy human. His calculations were off, maybe because the temperature in your mouth and ears and armpits and rectum is a few degrees off from your core temperature, and the average temperature of a human is actually at 98.6 degrees.