Questions tagged [time-dilation]

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Could theory of Relativity be overlooking a relationship between time and force? [closed]

Does Time dilation effect correspond to a property of the world that is suited to the term's "modulated force" or "force dilation"? It seems a simple truth. A modulation in the rate of force-driven ...
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Gravitational time dilation with a unit of time corresponding to the period of a light wave

How is it that time runs faster at regions further out from the center of a gravitational field if: A clock's arm is made to make one cycle for a complete wavelength of a particular light beam. ...
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Dark energy time dilation

I have read here that dark energy is somewhat like negative mass. Here Wikipedia states: ... that the cosmological constant required that 'empty space takes the role of gravitating negative masses ...
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If objects slow down near a black hole, doesn't that mean the black holes won't absorb it until later? [duplicate]

First off, black holes grow (and also not die) by consuming matter, right? And if people (or any object) were to get close to a black hole, time would slow down for them which means they would ...
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Time dilation calculation in the relativistic rocket

Rindler coordinates are useful for describing objects moving at constant acceleration: \begin{equation} \mathbf{x} = \begin{pmatrix} t \\ x \end{pmatrix} = \begin{pmatrix} \xi\sinh [\alpha \zeta] \\ \...
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Time dilation, mass-energy equivalence, and implications for the passage of time [closed]

I'm an amateur physics enthusiast, and there is a question that's been in the back of my mind for some time that I haven't been able to answer on my own. First, I want to define a couple of terms and ...
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Using time-dilation to our advantage?

Assume we have a super-computer working on an important problem, and we estimate it will take about $200$ years to solve. But, we need the answer in $20$ years. Could we ship the super-computer into ...
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Measurement of time span of a free fall into a black hole

Observations of events seen from different reference systems always confuse me: A good example is the free fall of a particle into a -- for simplicity -- non-rotating black hole. In the reference ...
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Gravitational Time Dilation and Speed of Light [duplicate]

From what I'm understanding, the Speed of Light is roughly 186k MPS NO MATTER WHAT! Then say if a bean of light shoot pass near a Black Hole (Outside the Event Horizon of course) 1k lightyear away to ...
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Is it possible to calculate the distance between two points in space if time dilation difference is known?

If 19.4 minutes have passed on Earth and correspondingly 116.64 million years have passed on another place (Brahma loka), is it possible for me to find the distance between Earth and the other place ...
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Time dilation in tower-clock experiment

Suppose on the earth one put a tower of height $h$, there's two clock synchronized with respect to ground observer at $t_0$. Clock $A$ put under the tower, and clock $B$ put on top of the tower. ...
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Reference frames symmetry in Special Relativity

I have a couple of questions related to reference frames in STR. Let's consider a rocket that is inertially moving towards a star with a relative velocity 0.9c. I'd like to look at this example ...
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Time dilation in general and in particular for two opposite GPS satellites

I am going throw reading on relativity and youtube explanations at the moment. So far, I got next understanding and some questions: There is time-space thing. Moving through space at the speed of ...
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Moving clocks observed with different observers

If a clock is moving near to speed of light with constant velocity it'll slow down, but if I were to observe from the clock will the observer on Earth slow down?
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Spacetime interval calculation - What am I doing wrong?

I'm calculating spacetime intervals in standard setup with frames A and B where t = t' = 0 and x = x' = 0, and all the motion is going only in x direction. Objects A and B move in relative velocity ...
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Lorentz Transformation Perpendicular Photons

I'm trying to derive the Lorentz Transformation on my own but I'm stuck. This is probably something stupid, but I cannot figure out why I am not getting this right. enter image description here Here'...
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Are there any experimental data about potential time dilation caused by cyclical movement of heavy objects?

I am dealing with a completely fabricated scenarios (while trying to write a sci-fi book), so my thougts are completely hyphotetical. But I would like to ask you to help me find out if following ...
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Relation of time dilation with Biological clock

I have completely understood the time dilation topic along with its mathematical derivation and consequences. And we know due to time dilation a person's biological clock slows down.So I am not ...
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Variable acceleration relativistic rocket

I was wondering how a realistic fusion-or-something rocket would fly... More specifically, I wonder about the time dilation that would be experienced (say in the classic example of two twins). So, of ...
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Queuing by the event horizon

I understand that an observer outside the event horizon (EH) of a black hole (BH) will not see anything disappearing from outside the EH - only the effects of the time dilution near the EH. Assume ...
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Explanation of desynchronization of clocks in Special Theory of Relativity

I was going through a paper on De-Synchronization of 2 Clocks in Special Theory of Relativity. The author shows up number of ways clocks de-synchronize relative to 2 frames. The one I am stuck is due ...
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Could you create a “fast forward” machine using something like an accelerating Ringworld?

If you had a large cylinder in space with people on the inside surface and you started it spinning at a constant acceleration of 1G until it was spinning at near light speed (so the tangential ...
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Which clock will dilate when one is moving towards the other [duplicate]

Suppose two children are standing 100m apart one of them starts running towards the other with relativistic speed...which clock would be slower? Note- I thought this was similar to the twins paradox ...
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How are the time dilation and the relativistic Doppler shift added together in what observers “see”?

I'm using the illustration from this question: Suppose A and B are d light years away, and at rest. Then they symmetrically start to travel toward each other (symmetric acceleration process in ...
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If an object is travelling near light speed, would it's actions seem to be in slow motion?

Hypothetically if we were observing a clock travelling near light speed relative to us, we would see the clock ticking at a much slower speed than us. If that is true, then would all actions that are ...
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Why isn't time contraction a thing?

I'm very naive about relativity, but if it could be possible that Alice ages less than Bob in a journey, doesn't it logically follow that from the point of view of Alice, Bob has, at some point, gone ...
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Nature of Experiment or Measurement tied to Special Relativity concepts

Premise: In special relativity, we come across concepts like Length Contraction and Time Dilation. Pertaining to these topics, I have come across the following diagram (or its slight variations) in ...
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A beginner's question on time dilation [closed]

I have just started understanding relativity so the question might look absurd. I know that the faster we move through space , the slower we move through time. But I haven't understood it fully. I ...
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Time Dilation Special Relativity

Let's say we have an observer named Jack on a spaceship traveling at a constant velocity of 0.95c to the right, according to Bill, who is on the Earth. Then the spaceship reaches planet A and then ...