👉 Celsius is a unit of temperature measurement that is commonly used in physics, chemistry, and engineering to describe how hot or cold something is. It is named after the German physicist Georg Celsius (1766-1804) who developed the system for measuring temperature in 1793. The Celsius scale is based on a simple mathematical formula that relates temperature with the Kelvin scale of temperature, which has its own unit known as absolute zero, at which the temperature of an object
