All Questions
58
questions
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1
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79
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Does time arising from entropy agree with GR?
There's a theory that the direction of time arises from entropy and the correlations (interactions) between bodies. However, I don't see how this would incorporate the effects of General Relativity, ...
- 185
3
votes
3
answers
329
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Comparison of clocks running at different heights in a gravitational field
I hope this question has not yet been asked. If so then please link me to the answer.
If I build an apparatus which, on flicking a switch, sends a light beam, a distance to a mirror, and reflects it ...
0
votes
2
answers
53
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Gravitational effects on a celestial body and the difference between a pendulum and a regular clock
Imagine a planet with the same properties as Earth, this time moving in an elliptical orbit around a heavy star of a large number of solar masses. Also imagine that the surface of this planet is as ...
- 95
1
vote
1
answer
88
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Relativistic Time-Keeping and Sharing
Suppose there are 2 ships which keep time using atomic clocks. The atomic clocks are the same build so it is know that the two keeps keep proper time at the same rate. Suppose that the two ships ...
- 14.4k
1
vote
1
answer
69
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How would a clock with hands behave if half of it is outside a black hole and half inside? [closed]
I am thinking of a clock moving close to the speed of light at a tangent to the event horizon so it doesn't fall in instantly Would the time like spacetime inside the black hole be reflected in the ...
user355436
0
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1
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112
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Understanding consequences of spacetime relativity
If I understood right, time flows slower where there is more gravitational force (or to be more precise, as it was pointed out to me, where gravitational potential is lower), compared to where there ...
- 141
-1
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1
answer
109
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Quantum Theory and Time [closed]
I read somewhere that quantum theory requires absolute time and not a dynamic time as described in relativity. Can anyone confirm this and further describe in laymen's terms what quantum theorists ...
- 719
7
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4
answers
2k
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Could a civilisation use “inverse time dilation” to live longer?
If an observer were to live near a black hole of sufficient mass, half an hour could elapse for them, but the outside universe could progress hundreds of years. This is due to time dilation.
We know ...
- 179
1
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1
answer
88
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Is time dilation just a perceived difference in the passage of time or a real physical difference? [duplicate]
I am no physics expert, but I read that if someone, the same age as me, travels at near the speed of light time will go a lot slower for them. So that means that I would age quicker than that person. ...
- 11
3
votes
2
answers
532
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Using time dilation to find universal frame of reference
Before I ask this question, I just want to clarify that I am by no means an expert and that this question most likely came about due to my ignorance on the subject. If this is the case, please let me ...
- 567
5
votes
3
answers
1k
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Is time dilation due to relative velocity equivalent in principle to time dilation due to relative gravitational strength?
Is time dilation due to relative velocity and relative gravitational strength equivalent? That is, similar to Einstein's thought experiment where an observer in an enclosed capsule with no windows ...
- 307
2
votes
1
answer
84
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Will a clock that is isolated and stationary with respect to the CMB report the highest possible value for the age of the universe?
We have a very special clock that has existed since the dawn of time. Its purpose is to measure the age of the universe. It is always very far from any massive body or gravitational field and it is ...
- 2,403
1
vote
4
answers
527
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What mechanism will force mechanical watch to tick slower when go fast, due to relativistic effects? [duplicate]
To make mechanical watch tick slower, watch tick rate must be changed, oscialtion of balance wheel must be SOMEHOW changed, how would speed change oscialtion of balance wheel, due to relativistic ...
- 613
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votes
1
answer
199
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Is it possible to extract the relation between the flow of time and the density of space from GTR? [closed]
Is it even possible to formulate such relation?
- 1
0
votes
3
answers
341
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Does Gravity Causes Time Dilation?
Let's say there are 2 people, A and B. They both are at the sea level. A gets higher than B. Does time moves faster to A then B? (Does height -in other words gravity- causes Time Dilation?)
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