black hole
162
5.1
- noun
- /blæk hoʊl/
- Specialized
:
agujero negro
- The telescope discovered a black hole in the center of the galaxy, where gravity is so strong that light cannot escape.
- supermassive black hole
- escape from the black hole
- stars and black holes
We know that black holes eat things and grow.
- We know that black holes eat things and grow.
- If I am falling into a black hole, I go through.
- It appears in the analysis of black hole radiation.
- What happens when the black hole emits its particles?
- So in that context, the black hole isn't sucking in the photon.
- What now What is a black hole and how do we find them?
- Space and time bend into a black hole so that nothing can escape.
- And if you throw something into a black hole, it gets sucked in.
- So let's say I do form a black hole through stellar collapse.
- From our reference frame, the black hole gained no mass.
- OK, but now a rotating black hole will cause two.
Examples
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And if you throw something into a black hole, it gets sucked in.
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Notice that as it orbits around the black hole, the stars get ripped apart.
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What now What is a black hole and how do we find them?
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As stuff falls into the black hole, it's mass gets larger.
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Space and time bend into a black hole so that nothing can escape.
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We know that black holes eat things and grow.
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Here we are at the event horizon of a black hole.
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Why should we want to make black holes on Earth?
Academic text (2008) -
Particles can actually escape a black hole through certain quantum processes.
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OK, this is the last class of the section on black holes and relativity.
How Evolved
- Specialized
162
5.1
- Specialized
14
7.4
- Specialized
5
7.5
- Specialized
1
7.3
- Specialized
7
7.2
- Specialized
- Specialized
3
9.0
Surface Forms
Morphology
The figurative sense draws directly on the literal image of a dark opening that swallows everything and returns nothing, so a learner who knows 'black' and 'hole' can plausibly infer that it denotes something that consumes resources or attention. However, the extension from a physical cavity to abstract consumption is metaphorical rather than strictly compositional, so the meaning is predictable but not fully literal.
Etymology
Black hole comes from the picture of a very black hole in space that pulls everything in, even light. So today black hole means a place in space that nothing can escape from.