|
Black Hole (other)
A black hole is a region of extreme gravitational pull. Black hole or blackhole may also refer to: Computing *Black hole (networking), in computer networking, a place where traffic is silently discarded *Blackhole server, a DNS server that handles reverse lookups of invalid IP ranges *A storage engine provided by MySQL data Film and television *The Black Hole (1979 film), ''The Black Hole'' (1979 film), a 1979 science fiction film *Black Holes (film), ''Black Holes'' (film), a 1995 film *The Black Hole (2006 film), ''The Black Hole'' (2006 film), a science fiction film *Black Hole (2015 film), ''Black Hole'' (2015 film), a documentary film *The Black Hole (2016 film), ''The Black Hole'' (2016 film), a 2016 science fiction thriller *Black Hole (House), a 2010 episode of ''House'' Games *Black Hole (pinball), ''Black Hole'' (pinball), a 1981 pinball machine manufactured by Gottlieb *''Black Hole'' (1981 video game), an arcade game by TDS *Blackhole (video game), ''Blackhole'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Hole
A black hole is a region of spacetime where gravitation, gravity is so strong that nothing, including light or other Electromagnetic radiation, electromagnetic waves, has enough energy to escape it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary (topology), boundary of no escape is called the event horizon. Although it has a great effect on the fate and circumstances of an object crossing it, it has no locally detectable features according to general relativity. In many ways, a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with thermal radiation, the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is of the order of billionths of a kelvin for stellar black holes, making it essentially impossible to observe directly. Obje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
