Thermodynamics the work of French physicist Nicolas Léonard Sadi Carnot (1824) who believed that engine efficiency was the key that could help France win the Napoleonic Wars. Scots-Irish physicist Lord Kelvin was the first to formulate a concise definition of thermodynamics in 1854 which stated, "Thermo-dynamics is the subject of the relation of heat to forces acting between contiguous parts of bodies, and the relation of heat to electrical agency." The initial application of thermodynamics to mechanical heat engines was extended early on to the study of chemical compounds and chemical reactions. Chemical thermodynamics studies the nature of the role of
Mormonism in the 19th century In its remote settlement, the church governed civil affairs and made public its practice of plural marriage (polygamy). As the federal government asserted greater control over Utah, relations with the Mormons enflamed, leading to the Utah War and the Mountain Meadows Massacre. Mormon polygamy became a major political issue, with federal legislation and judicial rulings curtailing Mormon legal protections and delegitimizing the church. Eventually, the church issued a manifesto discontinuing polygamy, which paved the way to Utah statehood and realignment with mainstream American society. Mormonism in the 19th century This is a chronology of Mormonism. In the late 1820s, founder