Celcius is confusing --- -40 degrees Fahrenheit is the same temperatures as -40 degrees Celsius.
Fahrenheit is distinguished from Celcius and Kelvin in that Fahrenheit is basically asking humans how hot it feels. Celsius is basically asking water how hot it feels. Kelvin is basically asking atoms how hot it feels.
Fahrenheit is distinguished from celsius and Kelvin in that Fahrenheit is based on how humans feel, Celsius is based on how the water feels, and Kelvin is based on how the molecules feel.
Fahrenheit is named after German, Daniel Fahrenheit, who invented the mercury thermometer as well as his (now eponymous) temperature-measuring scale in the mid-18th century.
Daniel Fahrenheit was the mid-18th century inventor of the mercury thermometer and a temperature-measuring scale.

Fahrenheit is an archaic temperature scale that had the pleasing effect of making the British summer seem hotter.


