Calories while most commonly used for measuring energy in food, are in fact just a unit of measure and can be applied to anything that uses energy. "the amount of heat needed to raise the temperature of one liter of water by one degree Celsius (or one kelvin)"
Calories while most commonly used for measuring energy in food, are in fact just a unit of measure and can be applied to anything that uses energy. "the amount of heat needed to raise the temperature of one liter of water by one degree Celsius (or one kelvin)"