space-time
46
7.9
- noun
- /ˈspeɪs taɪm/
- Specialized
:
espacio-tiempo
- In the theory of relativity, all physical events occur within the space-time continuum.
- space-time continuum
- fabric of space-time
- ripples in space-time
The actual curvature of space-time itself, that is.
- The actual curvature of space-time itself, that is.
- And one might ask, when it's all diluted away, is space-time still curved?
- So where do they curve space-time if they're in two places?
- In the intrinsic geometry of space-time, this and this are straight.
- However, this restriction applies to objects in space-time, not to space-time itself.
- And people have been saying, well, the quantum space-time fluctuations are big enough.
- The rule is particles move on space-time geodesics.
- Like that we're in space-time and it can be bent by gravity.
- Is it little fluctuations in space-time, what's left?
- And I think obviously because space-time does curve.
- And this is a nature of space-time, things moving.
- And I'm going to talk much more about space-time during this lecture.
- Well, now we've discovered space-time itself is doomed.
Examples
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Senator, I believe that the Machine opened up a wormhole... ...a tunnel through space-time, also known as an Einstein-Rossen Bridge.
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Penrose proved, in effect, that wherever enough matter and energy were gathered, space-time could have an end.
Academic text (1991) -
When you do that, space-time is flat at a point.
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Once the ship had passed, space-time would return to normal.
Academic text (1996) -
But I want to start with the question of space-time and machines.
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But now you integrate over all space-time points, OK.
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The actual curvature of space-time itself, that is.
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But Wheeler also told us space-time tells matter how to move.
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As the black hole grows in mass, space-time itself gets diluted.
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Our relationship to the space-time axis will be very different from what we have lived with for millennia.
Academic text (1995)
Synonyms
13
8.1
A four-dimensional framework that joins space and time where events happen
8
8.0
The single thing made of space and time where everything happens
Surface Forms
Morphology
Etymology
Space-time joins two simple words: space meaning 'where things are' and time meaning 'when things happen'. A helpful image is to think of them as one 'fabric' that can bend under heavy objects, so space-time is the combined 'where' and 'when' that shapes how the universe and gravity work.