A calorie is a unit of measurement for the amount of heat that was introduced into the system of units of measurement in 1798. It was named after the Latin word “calor,” which means “warmth.”
Calorie is one of the basic units of energy and is used to measure the amount of heat released during various processes such as combustion, melting, boiling, etc. It is also used to measure the calorie content of food.
The calorie unit was introduced to simplify calculations when measuring the amount of heat. Previously, other units of measurement were used for this, such as joules or kilowatt-hours. However, the calorie has become a more convenient and popular unit of measurement due to its simplicity and versatility.