boundary event
1event horizon — e*vent ho*ri zon . (Physics, Astron.) the boundary surface surrounding a {black hole}, from outside of which nothing inside can be observed, because nothing inside that surface, even light, can escape beyond it. See also {black hole} and {escape… …
2event horizon — event′ hori zon n. astron. the boundary around a black hole on and within which no matter or radiation can escape • Etymology: 1970–75 …
3event horizon — n. Astron. the spherical boundary surrounding a black hole, within which there is such strong gravity that nothing, not even light, can escape …
4Event horizon — In general relativity, an event horizon is a boundary in spacetime, an area surrounding a black hole or a wormhole, inside which events cannot affect an outside observer. Light emitted from inside the horizon can never reach the observer, and… …
5event horizon — Astron. the boundary around a black hole on and within which no matter or radiation can escape. [1970 75] * * * Boundary marking the limits of a black hole. At the event horizon, the escape velocity is equal to the speed of light. Since general… …
6Boundary Waters Canoe Area Wilderness — Infobox protected area | name = Boundary Waters Canoe Area Wilderness iucn category = III iucn category = Ib caption = locator x = 162 locator y = 25 location = Minnesota, USA nearest city = Ely, MN lat degrees = 47 lat minutes = 49 lat seconds …
7Boundary delimitation — Delimitation redirects here. For a form of punctuation in computer languages, which breaks data, see delimiter. Part of the Politics series Elections …
8Event — The word event can have several meanings:In culture and social life:* Festival, for example a musical event * Ceremony, for example a marriage * Competition, for example a sports competition * Party, for example a birthday party * Convention… …
9Boundary lubrication — Brief description of lubricationLubrication is the process, or technique employed to reduce wear of one or both surfaces in relative motion to one another by interposing a substance called lubricant between the surfaces to carry or to help carry… …
10event — n. 1 a thing that happens or takes place, esp. one of importance. 2 a the fact of a thing s occurring. b a result or outcome. 3 an item in a sports programme, or the programme as a whole. 4 Physics a single occurrence of a process, e.g. the… …
