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Is there a location in the universe with the minimum rate of time dilation?

This question actually has more of a "physiological" answer than of a "scientific" answer. The notion of dime dilation is frame-dependent. Let's say you are a moving observer. You can consider ...
Ronny's user avatar
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2 votes
Accepted

Failures on deriving the Lorentz factor: using light clocks to calculate the dilation on space and time

Your calculations assume that the observers agree on the length of Alice's clock. For the vertical clock, that's the right assumption. Here is why: Alice can put little dabs of paint on the top and ...
WillO's user avatar
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Understanding Time Dilation at the Event Horizon

Absolutely good question. And the answer is not complicated, and it's been written about in many places, but I'll summarise it here in very simple terms. First, what does infinite time dilation mean? ...
JMadar's user avatar
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1 vote

Does time arising from entropy agree with GR?

General relativity doesn't tell you, in principle, what is the direction of time. This is something you add in by hand. In fact, some spacetimes don't even admit a choice of time-orientation. When a ...
Níckolas Alves's user avatar
2 votes

Time dilation with atomic clocks near accelerators or colliders

The clock would be fine and read normally, except for the stray magnetic fields, EMI/EMC, and high radiation environment....but that has nothing to do with time dilation. From the clock (i.e., the lab)...
JEB's user avatar
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3 votes

Time Dilation when they meet

Two spaceships synchronize clocks, depart at noon and meet up at a destination. For the first spaceship it appears they have travelled for 30 minutes and because of time dilation the second ship has ...
KDP's user avatar
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4 votes

Time Dilation when they meet

Let me try to interpret your question in the way that I think you intend. Two distant spaceships (at rest with one another) synchronize their clocks. They both take off at the same speed, toward each ...
WillO's user avatar
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7 votes

Time Dilation when they meet

Two spaceships synchronize clocks, depart at noon and meet up at a destination. For the first spaceship it appears they have traveled for 30 minutes and because of time dilation the second ship has ...
Dale's user avatar
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3 votes

Time Dilation when they meet

For the first spaceship it appears they have traveled for 30 minutes and because of time dilation the second ship has traveled for 25 minutes. From the first spaceship's point of view they meet at ...
benrg's user avatar
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0 votes

Time dilation cancelling out with movement in two directions

You are mixing 3 different reference frames here. Time dilation is how a specific observer sees the speed of the clock of another observer moving at v relative to him. If different observers look at a ...
Pato Galmarini's user avatar
2 votes

Is there a different way to measure speed, other than with time?

The space-time interval is the same for all observers regardless where you are.A falling observer in a black hole measures the same amount of time with someone in flat space time , however the 2 ...
Root Groves's user avatar
9 votes

Is there a different way to measure speed, other than with time?

A second near Earth is just as good as a second near the Sun, which is just as good as a second near a black hole. If you grab a clock, take it to that place, and let a second go by, it will all be ...
Níckolas Alves's user avatar
2 votes

Is it possible that the mass of a black hole is located at the event horizon?

Is it possible that the mass of a black hole is located at the event horizon? Yes, but not in the sense you mean it. Objects fall into the black hole without slowing. But the light from them has a ...
Nullius in Verba's user avatar
1 vote
Accepted

Relativistic force correction factor for time-dilated continuous entities

Not sure time dilation is that important here. Basically, you want to be working with covariant quantities, such as four-momentum. Time-dilation will be taken care of automatically. Now to the ...
Cryo's user avatar
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0 votes

Understanding Time Dilation at the Event Horizon

The standard answer you get when you ask this question is that an observer can fall through the event horizon of a black hole 'without noticing anything'. This doesn't really pan out in thought ...
Jesse King's user avatar
-1 votes

Does a pendulum violate general relativity?

I believe you could see it as such, that the pendulum is capable of measuring 'time' in the configuration space, but is not a valid timekeeper in the spacetime manifold, which has 'time' as the fourth ...
Apsteronaldo's user avatar
2 votes

Time dilation and angular velocity

The angular velocity of the falling disk will slow down as measured by a stationary (non inertial) observer standing on the surface of the Earth, for two reasons: As it falls, its vertical velocity ...
KDP's user avatar
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