heat loss
121Exergy — Available energy redirects here. For the meaning of the term in particle collisions, see Available energy (particle collision) .In thermodynamics, the exergy of a system is the maximum work possible during a process that brings the system into… …
122History of entropy — The concept of entropy developed in response to the observation that a certain amount of functional energy released from combustion reactions is always lost to dissipation or friction and is thus not transformed into useful work . Early heat… …
123dinosaur — /duy neuh sawr /, n. 1. any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals. 2. something that is… …
124frostbite — /frawst buyt , frost /, n., v., frostbit, frostbitten, frostbiting. n. 1. injury to any part of the body after excessive exposure to extreme cold, sometimes progressing from initial redness and tingling to gangrene. v.t. 2. to injure by frost or… …
125Electromagnet — An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current is turned off. Electromagnets are widely used as components of other electrical devices,… …
126Fever — (also known as pyrexia, from the Greek pyretos meaning fire, or a febrile response, from the Latin word febris , meaning fever, and archaically known as ague) is a frequent medical sign that describes an increase in internal body temperature to… …
127Bird nest — For animal nests in general, see Nest. For other uses, see Bird s nest. Deep cup nest of the Great Reed warbler A bird nest is the spot in which a bird lays and incubates its eggs and raises its young. Although the term popularly refers to a… …
128Window — This article is about the part of a building. For the Microsoft operating system, see Microsoft Windows. For other uses, see Window (disambiguation) and Windows (disambiguation). Pair of windows, Old Ship Church, Hingham, Massachusetts …
