Reminds me of body temperature. In the US we're taught that the standard body temperature for a human is 98.6 degrees Fahrenheit. I don't know about anyone else

Reminds me of body temperature. In the US we're taught that the standard body temperature for a human is 98.6 degrees Fahrenheit. I don't know about anyone else, but when I was young I thought this was very specific and must mean that a temperature variation of a few tenths of a degree is worth noting. Turns out 98.6 degrees Fahrenheit is just a direct conversion from 37 degrees Celsius.