but like isn’t that the whole point of celsius? all you need to calibrate a C thermometer is some water: when it starts freezing it’s 0°C and when it’s boiling it’s 100°C, super simple and accessible.
It’s not like “the estimated average human body temperature” is particularly accurate, and surely no matter what you mix into water it won’t magically boil at the same temperature regardless of air pressure?
but like isn’t that the whole point of celsius? all you need to calibrate a C thermometer is some water: when it starts freezing it’s 0°C and when it’s boiling it’s 100°C, super simple and accessible.
It’s not like “the estimated average human body temperature” is particularly accurate, and surely no matter what you mix into water it won’t magically boil at the same temperature regardless of air pressure?