All Questions
Tagged with speed-of-light time-dilation
118
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Physical meaning of $vx/c^2$ in Lorentz transformation
In Lorentz transformation, this is the formula of time dilation
$$ t' = \gamma \left( t - \frac{vx}{c^2} \right) $$
It can be derivated from the formula of length contraction and be proved ...
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4
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Gravitational Time Dilation and the Apparent Speed of Light
It has been proven that time far away from Earth is faster than time on the surface of Earth, due to gravitational time dilation. (GPS satellites take gravitational time dilation to account.)
Would ...
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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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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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Is it more accurate to say space in a weaker gravitational field is contracted, or that time is faster?
Little thought experiment. An observer places a mirror and a clock 1 lightyear away from a black hole. He then goes in the black hole's gravitational field at a point where he sees the clock tick at 2 ...
- 171
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How to explain light traveling two distances in the same frame of reference? [closed]
Suppose I have a "moving" frame of reference where I send a light beam from point A to two equidistant points B and C (equidistant in the moving frame of reference). From a "stationary&...
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2
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60
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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 ...
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What could a year long journey look like, while traveling near the speed of light, through the lens of that telescope?
Hypothetically speaking if you had a satellite going near the speed of light in a straight line towards an exoplanet light years away and that satellite had a telescope pointed at the surface of an ...
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2
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What changes do we have when we consider time dilation of light clock? [closed]
According to the special theory of relativity, in moving body all physical processes are slower than they should be for a stationary body according to the time counts of a fixed (laboratory) frame of ...
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If someone flies away from me quickly, and then I catch up to them, will our clocks be in sync or out of sync?
At time 0, Alice and Bob are stationary in space with their clocks synced. Then Alice, for $t=\text{1 day}$ (measured by herself), flies in one direction at the speed $v=0.99 c$, and then stops. Due ...
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What is the necessary speed to travel 1 light-year in 1 year (for the traveler)?
I am stationary and I want to travel to a destination that is 1 light-year away. This journey needs to last 1 year for me. What is the average speed that my rocket must travel to achieve this?
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Why light travel along with light clock? [duplicate]
I am interested in exploring time dilation effects. I came across a video and I learned that when we move a light clock in constant velocity the light bounce will take a longer time with more speed. ...
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1
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73
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In Special relativity why the light clock is orthogonal to the direction of motion of the train?
I tried to see if this question has been asked elsewhere in the forum, I couldn't find it, unless somehow I missed it.
I have always wondered why the light clock in the relativity train goes up and ...
- 107
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2
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61
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Can Shapiro Time Delay cause light in a vacuum to go faster than c as viewed from a remote reference frame?
I know within any reference frame the speed of light is fixed. But it has been shown that light does appear to slow down when passing massive objects as viewed from a remote reference frame per https:/...
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Minimum time passed for stationary observer at destination in relativistic physics
While my friend and I were discussing about relativistic physics, we came up with the following question.
Suppose a person $P$ wanted to travel from point $A$ to point $B$ in one-dimensional space. ...
