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...escription|Sudden change of spin axis caused by merging with another black hole}} {{About|black hole spin-flips|atomic spin-flips|Hydrogen line}} ...

...ity|singularities]], the [[Cosmological horizon|cosmological]] and [[black hole horizon]]s have the same area, and they can be mapped to each other by a di In general relativity, spacetimes can have [[black hole]] [[event horizon]]s and also [[Observable universe#Horizons|cosmological h ...

...del into one admitting mixed propagating dilaton-gravity waves, as well as making the 1+1D model geometrically nontrivial locally.<ref> ...dels retains just enough complexity to include among its solutions [[black hole]]s, their formation, FRW cosmological models, [[gravitational singularities ...

...s://web.archive.org/web/20200626004744/https://phys.org/news/2020-06-black-hole-collision.html |url-status=live }}</ref> ...200902">{{cite news |author=Martin |title=GW190521: The Most Massive Black Hole collision Observed To Date |url=https://www.ligo.org/science/Publication-GW ...

...|high-speed steel]] (HSS) annular cutter (also known as a "core drill" or "hole saw")]] ...nnulus (shape)|annulus shape]], cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.<ref><span dir="ltr">Metal Cu ...

...for a positive one. This theory can be exactly [[solvable group|solved]], making it a [[toy model]] for [[quantum gravity]]. The [[Killing form]] involves t ...|monster conformal field theory]], and computed the entropy of [[BTZ black hole]]s. ...

{{Short description|Cluster of stars around a supermassive black hole}} ...the black hole at the time of the ejection will remain bound to the black hole after it leaves the galaxy, forming the HCSS. ...

...|first=Luis |date=December 1998 |title=Gravitational Radiation from Black Hole Spacetimes |url=https://ui.adsabs.harvard.edu/abs/1998PhDT.........6L/abstr ...local structure of the metric and adds the boundary of the manifold, thus making it [[Compact space|compact.]]<ref name=":6">{{Cite book |last=Stewart |firs ...

...trate a much higher proportion of their galactic mass in the central black hole than is observed in normal galaxies.<ref name="newsci20120830" /> ...ified as hot DOGs because the influence of the active [[Supermassive black hole|SMBH]] in an environment rich with dust triggers [[star formation]], and he ...

...tric]] describing the collapse of an object of extreme mass into a [[black hole]].<ref name=":2">{{Cite book ...=Hamilton |first=Andrew |date=November 13, 2011 |title=Collapse to a Black Hole |url=https://jila.colorado.edu/~ajsh/bh/collapse.html |access-date=February ...

| alt1 = Colourful four-hole English pendant ocarinas hanging from a rail by elaborately-knotted 2- and ...pitch) scale, followed by a rendition of [[Frère Jacques]]. This is a six-hole [[Ocarina#Types|English Pendant ocarina]] (the other two holes are on the b ...

{{Short description|Cube that fits through hole in smaller cube}} [[File:Prince Ruperts cube.png|thumb|A unit cube with a hole cut through it, large enough to allow Prince Rupert's cube to pass]] ...

...ated cylinder power output: <math>D^2= 0,2 N</math>. <math>D</math> is the hole diameter in millimetres, <math>N</math> is the power output in [[Horsepower ...featuring the open nozzle design was considerably cheaper and easier than making them with a closed nozzle design. It also allows for using tar as fuel. How ...

...t of a star by tidal forces when it gets too close to a supermassive black hole}} ...ion.jpg|thumb|Simulation of a star being disrupted by a supermassive black hole during a tidal disruption event.<ref name="Price2024">{{Cite journal |last1 ...

...|first1=Pieter |last2=Bergmann |first2=Uwe |title=High resolution 1s core hole X-ray spectroscopy in 3d transition metal complexes—electronic and structur ...rtifacts]], thus motivating the use of X-ray photons for creating the core hole. Subsequent experiments were carried out with commercial X-ray spectrometer ...

...dark energy. In the early universe, extreme density caused severe damping, making spacetime rigid and less vibratory, which slowed expansion. As the universe ==Black Hole Structure== ...

...ided into an [[active laser medium|active region]], electron injector, and hole injector. The groups of quantum wells that constitute each region are indic ...onfined quantum well (QW) layers for electrons and barriers for [[electron hole|holes]]. The GaSb (or GaInSb) layers conversely act as QWs for holes and ba ...

...are required, the laser is moved around the circumference of the “popped” hole until the desired diameter is created. ...les is an understanding of the relationship between process parameters and hole quality and [[drilling]] speed. ...

...niform small [[rhombicosidodecahedron]] with each face replaced by a small hole. The ends of the struts are designed to fit in the holes of the connector n ...d fit into any of the 12 pentagonal holes with 5 possible orientations per hole, 60 possible orientations in all; using them is not as straightforward as t ...

...|arxiv=2012.14001 }}</ref> and entanglement wedge reconstruction for black hole physics.<ref>{{Cite journal |last1=Chen |first1=Chi-Fang |last2=Penington | ...very map is its ability to function as a quantum channel in certain cases, making it an essential tool in quantum information theory. ...