All Questions
Tagged with time time-dilation
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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, ...
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For an observer on a spaceship moving near the speed of light away from Earth, would Earth be moving near the speed of light in the other direction? [duplicate]
There is something I don't understand about time relativity in examples given in internet, television, etc. Supposedly if a spaceship takes off from Earth and moves closer to the speed of light, time ...
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To understand relativity in time with time dilation experiment
The time dilation experiment involves two frames in relative motion, let one at ground and other at train with velocity V. The light clock runs faster in rest frame, as seen by an observer A at rest ...
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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 ...
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Symmetrical Time Dilation [duplicate]
I have lately been researching time dilation and relativity, and thought about this phenomenon:
Take two people, Observer A, and Observer B, who are both carrying clocks. Observer A travels through ...
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Does the speed of light determine how slow time can move?
Since moving faster makes time move slower. Does that mean that there is an absolute minimum rate at which time passes? If so. Is there also a maximum?
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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 ...
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Are astronauts really younger than the rest of us after their trips to space? [closed]
I have seen this commented in a million places on social media (see here as well as places like HowStuffWorks, Business Insider, and even Scott Kelly makes the claim in the Guardian. Their reasoning ...
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Relativity Time Dilation with a twist- Apparent Paradox [duplicate]
Imagine identical triplets on Earth: Ana, Barb, and Evelyn. Ana launches in a spaceship traveling .85c. She knows time on Earth is elapsing 1.9 times faster.
A few months later, Barb launches in a ...
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Relativity of Simultaneity- Train Experiment with 2 Countries signing Contract
I am having a hard time understanding the implications of one of the popular variations of the thought experiments associated with Relativity of simultaneity. The example goes as follows. 2 countries ...
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Calculate mass from time dilation
Hi not a physicist in any way so was wondering if I know the age (time passed) and mass of an one object and the age (time passed) of another object, can I calculate its mass?
So Object 1 is Earth:
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Relationship between clock rate and speed
Let's consider example:
The propagation of light from the middle of a moving train to its left and right ends. From the point of view of a train passenger, the light will reach the right and left ends ...
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4
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How to explain the time dilation effect non-mathematically (without Lorentz transformation)?
I read many good and rigorous mathematical explanations of the time dilation effect, but I didn't see any non-mathematical explanations.
Is it possible to explain the time dilation effect non-...
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How to measure time in reference frame with clock?
I considered example of time dilation with light clock. I have a question about measuring time in reference frame with clock.
If we know that clock move from A to B in the reference frame with clock ...
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Time dilation query [closed]
In the light clocks, time ticks via the motion of light and since speed of light is constant therefore when the clock is in motion ,the photon has to cover a greater distance by the perspective of an ...
