/kloc-in the 0/8th century, Farenheit found that the height of mercury column in barometer changed with temperature, which prompted him to start studying mercury thermometer.
17 14 years, he finally made the first glass mercury thermometer. The scale of this thermometer is divided according to the earliest temperature scale (Fahrenheit scale) in history. Initially, the Fahrenheit scale selected the mixture of NH4Cl (ammonium chloride) and water as 0, while the temperature of a person (his wife) was 96. After that, the ice-water mixture was changed to 32 (that is, the freezing point), and the temperature at the boiling point of water was 212, which was the Fahrenheit temperature scale, which was represented by the symbol ℉.