stay+fixed
21Audience scanning — An audience watches a laser light show during the SIB trade fair in Rimini, Italy in 2002. Audience scanning (sometimes called crowd scanning ) occurs when a laser beam is directed toward the people observing a laser show or display. Although… …
22Atmospheric tide — Atmospheric tides are global scale periodic oscillations of the atmosphere. In many ways they are analogous to ocean tides. Atmospheric tides can be excited by:*The regular day/night cycle in the insolation of the atmosphere *The gravitational… …
23Rebound effect (conservation) — The term rebound effect is used in conservation, energy economics and green marketing. It refers to the behavioral or other systemic responses to the introduction of new technologies, or other measures taken to reduce resource use. These… …
24Equatorial mount — An equatorial mount is a mount that has one rotational axis parallel to the Earth s axis of rotation [cite web | url = http://www.astrogea.org/soldevilla/las monturas.htm | title = LAS MONTURAS | publisher = Observatorio J. A. Soldevilla] [cite… …
25stick — I. n. 1. Rod, switch, birch. 2. Club, bludgeon, cudgel, shillelah, bat. 3. Cane, staff, walking stick. 4. Piece of timber. 5. Stab, thrust, prick. 6. (In printing.) Composing stick. II …
26Ionosphere — The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner …
27Operator (physics) — In physics, an operator is a function acting on the space of physical states. As a result of its application on a physical state, another physical state is obtained, very often along with some extra relevant information. The simplest example of… …
28Hydration system — In recreation and other sustained outdoor activities, a hydration system is an apparatus intended to promote its user s drinking enough liquid to support the physical effort involved in the activity. Such systems for consumers were first sold to… …
29Mapping cylinder — In mathematics, specifically algebraic topology, the mapping cylinder of a function f between topological spaces X and Y is the quotient where the union is disjoint, and ∼ is the equivalence relation That is, the mapping cylinder Mf …
30Inflation targeting — is a monetary policy in which a central bank attempts to keep inflation in a declared target range typically by adjusting interest rates. The theory is that inflation is an indication of growth in money supply and adjusting interest rates will… …
