momentum energy
61Outline of energy — See also: Index of energy articles In physics, energy (from the Greek ἐνέργεια – energeia, activity, operation , from ἐνεργός – energos, active, working [1]) is a scalar physical quantity that describes the amount of work that can be performed by …
62Binding energy — Nuclear physics Radioactive decay Nuclear fission Nuclear fusion Classical decays …
63Directed-energy weapon — This article is about practical experiments with energy weapons. For fictional uses, see raygun. Humvee with Active Denial System mounted A directed energy weapon (DEW) emits energy in an aimed direction without the means of a projectile. It… …
64Global Energy and Water Cycle Experiment — The Global Energy and Water Cycle Experiment (GEWEX) is a research program of the World Climate Research Programme intended to observe, comprehend and models the Earth s water cycle. The experiment also observes how much energy the Earth receives …
65Activation energy — In chemistry, activation energy, also called midnight energy, is a term introduced in 1889 by the Swedish scientist Svante Arrhenius, that is defined as the energy that must be overcome in order for a chemical reaction to occur. Arrhenius… …
66Electron energy loss spectroscopy — In electron energy loss spectroscopy (EELS) a material is exposed to a beam of electrons with a known, narrow range of kinetic energies. Some of the electrons will undergo inelastic scattering, which means that they lose energy and have their… …
67Hawking energy — The Hawking energy or Hawking mass is one of the possible definitions of mass in general relativity. It is a measure of the bending of ingoing and outgoing rays of light that are orthogonal to a 2 sphere surrounding the region of space whose mass …
68Low-energy ion scattering — LEIS redirects here; for the Hawaiian garland see Lei (Hawaii). Low energy ion scattering spectroscopy (LEIS), sometimes referred to simply as ion scattering spectroscopy (ISS), is a surface sensitive analytical technique used to characterize the …
69High Energy Astronomy Observatory 3 — The last of NASA s three High Energy Astronomy Observatories, HEAO 3 was launched 20 September 1979 on an Atlas Centaur launch vehicle, into a nearly circular, 43.6 degree inclination low Earth orbit with an initial perigee of 486.4 km.The normal …
70Cooperstock's energy-localization hypothesis — In physics, the Cooperstock s energy localization hypothesis is a hypothesis proposed by Fred Cooperstock that in general relativity, energy only exists in regions of non vanishing energy–momentum tensor[1]. Since the creation of general… …
