✹ About Monday 6 February 1664/65 Louise Hudson on 7 Feb 2018 • Link Graham T wrote, “The USA is the only major country still using Fahreheit - which is now defined as a sub-standard of Celsius/Kelvin rather than a standard in its own right.” I beg your pardon, Graham! Fahrenheut IS the standard in the US. Except in scientific circles, temperatures are given in Fahrenheit almost everywhere in the US (or it’s occasiinally given in both Fahrenheit and Celsius) . Having used Fahrenheit my whole life, I have never been able to get my head around Celsius. I have to look it up every time to find out what the “real” temperature is. Everybody knows that 32 degrees is the freezing point of water, and 212 degrees is the boiling point! My sons, on the other hand, who have careers in the sciences, know Celsius like the back of their hands and often give me whithering looks.