mechanical equivalent
41Julius Robert von Mayer — Infobox Scientist name = Julius Robert von Mayer box width = image size =150px caption = Julius Robert von Mayer birth date = November 25, 1814 birth place = Heilbronn death date = March 20, 1878 death place = residence = |citizenship =… …
42Wärmeäquivalent — Wärmeäquivalent, mechanisches. Der erste Hauptsatz der mechanischen Wärmetheorie (s. S. 815), der einen speziellen Fall des Prinzips von der Erhaltung der Energie (Bd. 3, S. 449) darstellt, sagt aus: In allen Fällen, in welchen durch Wärme Arbeit …
43Work (thermodynamics) — In thermodynamics, work is the quantity of energy transferred from one system to another without an accompanying transfer of entropy. It is a generalization of the concept of mechanical work in mechanics. In the SI system of measurement, work is… …
44Theory of heat — In the history of science, the theory of heat or mechanical theory of heat was a theory, introduced predominantly in 1824 by the French physicist Sadi Carnot, that heat and mechanical work are equivalent.[1] It is related to the mechanical… …
45Enthalpy — Thermodynamics …
46Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
47James Joule — James Prescott Joule James Prescott Joule Pour les articles homonymes, voir Prescott et Joule (homonymie). James Prescott Joule (24  …
48James Prescott Joule — Pour les articles homonymes, voir Prescott et Joule (homonymie). James Prescott Joule James Prescott Joule Naissance …
49Second law of thermodynamics — The second law of thermodynamics is an expression of the universal law of increasing entropy, stating that the entropy of an isolated system which is not in equilibrium will tend to increase over time, approaching a maximum value at… …
50physical science — physical scientist. 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy. 2. these sciences collectively. [1835 45] * * * Introduction the systematic study of the inorganic world …
