Before revision: "Heat is Motion " (Francis Bacon) 197x197px|Francis Bacon The idea that heat is a form of motion is perhaps an ancient one and is certainly discussed by the English philosopher and scientist Francis Bacon in 1620 in his Novum Organum.
After revision: "Heat is motion " (Francis Bacon) 197x197px|Francis Bacon The idea that heat is a form of motion is perhaps an ancient one and is certainly discussed by the English philosopher and scientist Francis Bacon in 1620 in his Novum Organum.