Mechanical equivalent of heat

This concept established the relationship between mechanical work and heat, demonstrating that energy could be converted from one form to another but not created or destroyed. It was a foundational principle in the field of thermodynamics that quantified the amount of work needed to produce a specific quantity of heat.
 James Prescott Joule England 1843 Mechanical equivalent of heat

This concept established the relationship between mechanical work and heat, demonstrating that energy could be converted from one form to another but not created or destroyed. It was a foundational principle in the field of thermodynamics that quantified the amount of work needed to produce a specific quantity of heat.