black hole

Definitions

  • WordNet 3.6
    • n black hole a region of space resulting from the collapse of a star; extremely high gravitational field
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Webster's Revised Unabridged Dictionary
  • Interesting fact: Over billions of years, black holes become white holes and they spit out all of the things they sucked in. the atoms are completely jumbled, so no one knows what will ever come out. Theoratically they'll also turn into a white hole. If you were unfortunate enough to fall within one, you would never actually hit -- because time would stop at some point within the event horizon (space outside) of the black hole. Thanx De Composed
    • black hole A dungeon or dark cell in a prison; a military lock-up or guardroom; -- now commonly with allusion to the cell (the Black Hole) in a fort at Calcutta (called the Black Hole of Calcutta), into which 146 English prisoners were thrust by the nabob Suraja Dowla on the night of June 20, 1765, and in which 123 of the prisoners died before morning from lack of air. "A discipline of unlimited autocracy, upheld by rods, and ferules, and the black hole ."
    • black hole a place into which things may enter, but can never emerge.
    • black hole (Physics, Astron) An astronomical object whose mass is so condensed that the gravitational force does not allow anything, even light, to escape from its outer limit (the event horizon). The existence of such objects was first proposed from theoretical considerations. Because light cannot escape from such objects, they have not yet been detected with certainty (1998), but several "candidates" have been observed whose properties strongly suggest that they are black holes. Some theorists suggest that the centers of many galaxies may have large black holes at their cores. See also escape velocity.
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Idioms

Black hole - If there is a black hole in financial accounts, money has disappeared.
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Etymology

Webster's Revised Unabridged Dictionary
from the astronomical black hole,

Usage

In literature:

We'll just manage a morning of it in the woods; you can show your cousin Black Hole another time.
"The Heiress of Wyvern Court" by Emilie Searchfield
What was that black hole yawning in the mountain side?
"The Adventures of Piang the Moro Jungle Boy" by Florence Partello Stuart
He lunged and scrambled into a yawning black hole in the mountains.
"Beyond the Vanishing Point" by Raymond King Cummings
Behind him the council fire made a dwindling hole in the blackness of night.
"The Devil's Asteroid" by Manly Wade Wellman
They had brought a little hand-cranked diamond drill with them to bore holes in the hard granite and black powder for blasting.
"Space Prison" by Tom Godwin
In point of heat, St Louis certainly approaches the nearest to the Black Hole of Calcutta of any city that I have sojourned in.
"Diary in America, Series One" by Frederick Marryat (AKA Captain Marryat)
But don't you feel scared-like about this great black hole?
"Jack at Sea" by George Manville Fenn
We had named the pool the black hole.
"The Thorogood Family" by R.M. Ballantyne
He could not help hesitation, for the hole was black and forbidding.
"In the King's Name" by George Manville Fenn
I couldn't bring her with me into this black hole.
"Rookwood" by William Harrison Ainsworth
Indeed everybody was afraid to venture in that black hole from which the hot, sulphurous gases were pouring.
"The Arena" by Various
Then he peered into the black gaping hole behind the grill.
"Gold in the Sky" by Alan Edward Nourse
Both male and female prisons have Black Holes attached to them for the solitary confinement of the refractory.
"A Boy's Voyage Round the World" by The Son of Samuel Smiles
All know the story of the black hole of Calcutta, which led to our waging war on the Nawab.
"Life and Work in Benares and Kumaon, 1839-1877" by James Kennedy
I swear to you that I believed a terrible green glow hung over the hole in the black water behind me.
"The Blue Wall" by Richard Washburn Child
One of the monitors tripped over it, and got in a rage, and there's Bellerby now catching it in the Black Hole.
"The Fifth Form at Saint Dominic's" by Talbot Baines Reed
And that reminds me, I saw holes in your black lace stockings yesterday.
"Lucy Maud Montgomery Short Stories, 1905 to 1906" by Lucy Maud Montgomery
Below falls, deep black hole; breeds say bad spirits go there.
"Two on the Trail" by Hulbert Footner
This was newer, it had no disfiguring holes, or black stain in the corner.
"'Me-Smith'" by Caroline Lockhart
Several holes were cut in the lid, and out of one of them was thrust a little black nose, as if trying to get air.
"Aunt Jo's Scrap-Bag VI" by Louisa M. Alcott
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In poetry:

"Twelve months' black-hole, I say,
Where daylight never flashes;
And always twice a day
A good six dozen lashes!"
"Joe Golightly - Or, The First Lord's Daughter" by William Schwenck Gilbert
SEE his black nose snubbed back, pressed over like a whale's
blow-holes,
As if his nostrils were going to curve back to the root of
his tail.
"He-Goat" by D H Lawrence
Then the darkness closed like a trap that was sprung,
And the night grew black as coals,
And we heard the ceaseless thunder
Of the water down the holes.
"The Legend of Cooee Gully" by Henry Lawson
Is time — not years — millennia of time
And funding ready to withstand the strain
Of a black hole. He needs stars in his brain
And something like the ocean in his mind.)
"The Alchemist" by Rainer Maria Rilke
For each as he leaps to the top can see,
Like an etching of blood on his brain,
A wife or a mother lashed to a tree,
With two black holes where her breasts should be,
Left to rot in the rain.
"The Blood-Red Fourragere" by Robert W Service
My heart sank with our Claret-flask,
Just now, beneath the heavy sedges
That serve this Pond's black face for mask
And still at yonder broken edges
O' the hole, where up the bubbles glisten,
After my heart I look and listen.
"Nationality In Drinks" by Robert Browning

In news:

Columnist Angela Hill hangs out in the Black Hole before the Oakland Raiders vs Cleveland Browns game at Oakland's O.co Coliseum on Dec 2, 2012.
After all the videos of people being A-Holes on Black Friday, it is great to see the true meaning of the season, and perhaps renewing your faith in mankind.
Simulations uncover ' flashy ' secrets of merging black holes.
Scientists are tackling this problem by studying the number of black holes in galaxies with different compositions.
Discovery of huge black hole raises doubts about how galaxies are formed .
Her famously imposing three-dimensional vortexes of the early 1960s—grungy swaths of canvas stitched onto spiraling armatures—grabbed your attention with the gravitational strength of black holes.
Scientists suggest shreds from protoplanetary disk are heading for Milky Way's black hole.
Overfed Black Holes Shut Down Galactic Star-making.
During "Black Hole Sun" we saw the clean-cut man standing a few rows in front of us unabashedly jamming to the song, clearly inspired by Grace 's infectious, boundless energy.
I n case you're living in a black hole and didn't know, today is Black Friday.
Stephen Hawking , the British cosmologist who urged people to "be curious" in the Paralympics opening ceremony, has landed the richest prize in science for his work on how black holes emit radiation.
Black holes may be the most ironic objects in the Universe.
It's one of the largest known black holes in the Universe, so big we call it "supermassive.".
At a Raiders game, reporting from deep inside the famous Black Hole .
Van den Bosch said his team discovered the mega black holes during a survey to seek "the biggest black holes we could find.".
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In science:

For case B, Mtot is very close to the sum of Mtot a Schwarzschild black hole with P = 0 and a boosted black hole with linear momentum P = 5.
Local and global properties of conformally flat initial data for black hole collisions
Figure 19 shows Mtot as a function of separation d for configurations with two black holes where one black hole has S = 0 and the other one has S = 5, calculated by both conformal-imaging and puncture methods.
Local and global properties of conformally flat initial data for black hole collisions
Figure 20 shows Mtot as a function of separation d for two black hole configurations with both black holes having non-zero angular momentum S = 5, calculated by both conformal-imaging and puncture methods.
Local and global properties of conformally flat initial data for black hole collisions
For a single boosted black hole, the calculated Mah is less than that of the corresponding boosted Schwarzschild black hole.
Local and global properties of conformally flat initial data for black hole collisions
For two-black hole configurations, with increasing separation d between the black holes the value of Mtot(d) tends to the sum of Mtot of two individual single-black holes numerical solutions containing their corresponding junk fields.
Local and global properties of conformally flat initial data for black hole collisions
They are useful as initial conditions for testing time-integration schemes for black hole collisions because black holes can be places at small initial separation.
Local and global properties of conformally flat initial data for black hole collisions
Mtot and Mah are calculated numerically, and Mirr is the irreducible mass of a Kerr black hole with the same overall mass and angular momentum as the numerical black hole.
Local and global properties of conformally flat initial data for black hole collisions
This plot shows polar circumference/equatorial circumference, Cp /Ce , for a black hole calculated by the imaging method and a Kerr black hole with the same overall mass and angular momentum, as a function of S.
Local and global properties of conformally flat initial data for black hole collisions
Mtot and Mah are calculated numerically, and Mboosted = pM 2 tot − P 2 is the horizon mass of a boosted Schwarzschild black hole with the same overall mass and linear momentum as the numerical black hole.
Local and global properties of conformally flat initial data for black hole collisions
For black hole, there is no force that can resist gravitational force, therefore, black hole will collapse forever until it becomes a singularity in space-time.
Gauge Theory of Gravity
In this point of view, black hole is not a singularity in space-time, and therefore, black hole has its own structure.
Gauge Theory of Gravity
Because of intense gravitational force of black hole, any positive energy can not escape from black hole, but negative energy can escape from black hole.
Gauge Theory of Gravity
For example, black hole can obtain energy from outside world through gravitational wave radiation, though the temperature of black hole is much higher than outside world.
Gauge Theory of Gravity
Gabor Kunstatter: “Quantum Mechanics of Charged BHs” Basic properties of black hole thermodynamics were used to quantize generic charged black holes in the Euclidean sector.
GR16: Quantum General Relativity
Using a midi-superspace quantization of the collapse for an arbitrary mass function illustrated in this same session by C Vaz, Witten showed that the solution leads both to Bekensteinss area spectrum for black holes as well as to the black hole entropy.
GR16: Quantum General Relativity
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