James joule

One of the interesting individual from “Absolute Zero” movie is James Joule. James Joule was an English physicist who observed the relationship between heat and mechanical energy. Many scientists during his time had accepted the caloric theory, where heat was considered as a fluid that was self-repulsive and cold was lack of caloric. James Joule was interested in the cannon experiments by Count Rumford, where heat was continuously generated by the mechanical work of the cannon. He collaborated with Lord Kelvin on the exchange rate of movement and heat which was then called energy. The unit of energy is named after him, Joules. Joule's laid the foundation for the theory of conservation of energy, which later was called the First Law of Thermodynamics.