| 释义 |
white hole
white hole n. A hypothetical spacetime singularity similar to a black hole except that matter and energy are emitted rather than absorbed at the event horizon. Though theoretically possible according to general relativity, the existence of isolated white holes is generally considered to be physically impossible because they would violate the second law of thermodynamics, which prohibits the spontaneous reversal of many natural processes.
[white + (black) hole.] white′ hole′ a theoretical celestial object into which matter is funneled from a black hole. [1970–75] white holeA hypothetical reverse of a black hole, from which matter emerges.white hole
white holeA hypothetical celestial object that releases matter (unlike a black hole, which absorbs matter). I have devoted my career to proving the existence of white holes.See also: hole, whitewhite hole
white hole The reverse of a black hole: a region where matter spontaneously appears. Early calculations on black holes indicated that the extreme distortion of space and time inside the event horizon should connect our Universe with another through an Einstein–Rosen bridge (or wormhole). Matter falling into the black hole should then correspondingly appear in the other Universe as outpouring of material through a white hole. It now seems likely that such links, and hence white holes, do not exist. |