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In astrophysics, an event horizon is a boundary beyond which events cannot affect an outside observer. Wolfgang Rindler coined the term in the 1950s. [1]In 1784, John Michell proposed that gravity can be strong enough in the vicinity of massive compact objects that even light cannot escape. [2]
An event horizon is a boundary around a black hole inside which events cannot affect an outside observer. Event horizon or Event Horizon may also refer to: Event Horizon Telescope, a type of astronomical interferometer; Event Horizon, a 1997 science fiction/horror film; Event Horizon, a 2007 site installation by Antony Gormley
In coordinate systems convenient for working in regions far away from the black hole, a part of the metric becomes infinite at the event horizon. However, spacetime at the event horizon is regular. The regularity becomes evident when changing to another coordinate system (such as the Kruskal coordinates), where the metric is perfectly smooth ...
Arizona Horizon, a current events television program that debuted Arizona-based KAET in 1981 The Horizon (web series) , a web series which premiered on YouTube; it is the most watched online series made in Australia and the most watched gay web series in the world.
When Paramount got its first look at a cut of “Event Horizon” in 1997, some studio executives thought that director Paul W.S. Anderson had made a film so disturbing that it slandered outer ...
Event (UML), in Unified Modeling Language, a notable occurrence at a particular point in time; Event (particle physics), refers to the results just after a fundamental interaction took place between subatomic particles; Event horizon, a boundary in spacetime, typically surrounding a black hole, beyond which events cannot affect an exterior observer
'90s Week: The 1997 sci-fi horror film flopped in theaters and with critics. On its 25th anniversary, the director tells us about the one thing that made audiences take a second look.
These concentric event horizons become degenerate for 2r Q = r s, which corresponds to an extremal black hole. Black holes with 2 r Q > r s cannot exist in nature because if the charge is greater than the mass there can be no physical event horizon (the term under the square root becomes negative). [ 9 ]