Black and White Hole Hierarchical UniversesGood, I J
A white hole is a time-reversed black hole. In classical kinematics and relativity, you can take any solution and time-reverse it and get another solution. But once you include thermodynamics, you see that most time-reversed solutions are not allowed. So, there's no reason to believe w...
A black hole is a region of space where so much mass is present that the escape velocity of the region exceeds the speed of light; thus, no object can ever escape a black hole. Black holes are well documented and studied objects which exist in our universe. A white hole...
How can a particle accelerator create a black hole? What is the theory of spacetime and black holes? Is a black hole made of dark matter? Can the Large Hadron Collider create a black hole? Is a black hole a singularity? Can neutrinos escape a black hole?
Forget black holes, weirder stuff happens in white ones Image: Jen Stark, photograph: Harlan Erskine PHYSICS is full of opposites. For every action, there’s a reaction; every positive charge has a negative; every magnetic north pole has a south pole. Matter’s opposite number is antimatter...
A Black Hole is Not a Hole 黑洞不是真的洞-Carolyn CinamiDecristofano by:Wendy的音频 166 Black Eat Black by:华语音乐 130 BLACK by:华语音乐 7278 Black&Pink by:华语音乐 1939 Black Beauty by:英语故事 1703 Black Beauty by:北京清桐教育 ...
While a black hole's event horizon is a sphere of no return, a white hole's event horizon is a boundary of no admission — space-time's most exclusive club. No spacecraft will ever reach the region's edge. Objects inside a white hole can leave and interact with the outside world, ...
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We investigate isolated white holes surrounded by vacuum, which correspond to the time reversal of eternal black holes that do not evaporate. We show that isolated white holes produce quasi-thermal Hawking radiation. The time reversal of this radiation, incident on a black hole precursor, constitute...