Fahrenheit, the shittiest unit to measure anything in. Example, °C is an SI unit. Let's look at an example:
30°F = 1.111°C
300°F = 149°C
Makes absolutely no fucking sense.
So why use Celsius, you ask?
Water, the most abundant/important molecule on earth.
Freezes at 0°C, boils at 100°C. Both things we can understand.
Fahrenheit = fucked.
@bortzmeyer @fatboy Minus 1 indeed (℉-32 = ℃×1.8).
Explanations from Robert L. Wolke in “What Einstein Told His Barber” (Titre en français : « Ce qu'Einstein disait à son coiffeur ») make some Gabriel Farenheit's choices look a bit less weird. Quickly said:
– The choose of 180° between freezing and boiling comes from the geometrical degrees, but 360 being a bit too much, he took the half,
– 0℉ is to the coldest temperature he was able to mesure (made by the coldest freezing mixture he was able to prepare),
– The previous two points lead the average human body temperature to ≃100, which can be something cool for self-esteem.
That's still bad choices for today's temperature mesuring, and switching to SI units would be a good idea, but that's a bit more understandable.
(Fun fact: for Anders Celsius, 100° was freezing and 0° was boiling. Don't know why. The currently used SI unit was inverted after his death.)
Explanations from Robert L. Wolke in “What Einstein Told His Barber” (Titre en français : « Ce qu'Einstein disait à son coiffeur ») make some Gabriel Farenheit's choices look a bit less weird. Quickly said:
– The choose of 180° between freezing and boiling comes from the geometrical degrees, but 360 being a bit too much, he took the half,
– 0℉ is to the coldest temperature he was able to mesure (made by the coldest freezing mixture he was able to prepare),
– The previous two points lead the average human body temperature to ≃100, which can be something cool for self-esteem.
That's still bad choices for today's temperature mesuring, and switching to SI units would be a good idea, but that's a bit more understandable.
(Fun fact: for Anders Celsius, 100° was freezing and 0° was boiling. Don't know why. The currently used SI unit was inverted after his death.)
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