All Questions
6
questions
2
votes
1
answer
776
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The value of speed of light in different regions of spacetime
This question of mine started shaping in my head first while I was looking for the most fundamental answer for the speed of light's value and its property of being the limit.
I have convinced myself ...
1
vote
2
answers
274
views
Time and speed of light in Relativity
Time running slower near a massive object, but the speed of light does not really change near a massive object, according to Relativity - it just curves. Is not time directly related to the speed of ...
-1
votes
2
answers
117
views
How would the following image look like, if we didn't use $ct$ for time?
I just wonder how spacetime would look like if we didn't use $ct$ for $t$ and we just used $t$ instead?
I guess the $t$-axis would just scale. Would that mean that, the hyperbolas would be very hard ...
0
votes
3
answers
1k
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Why are the coordinate axes of a moving frame $K'$ tilted in spacetime diagrams?
I am currently trying to self-teach special relativity (if relevant, I am still in school). I think that I already have a good intuitive understanding of, for example, time dilation and length ...
2
votes
1
answer
99
views
Time is in absolute Motion Or Not? [duplicate]
I just want to know If Time is actually moving forward in one direction or is there anything in the universe for which the time is actually at rest despite the fact that it's actually moving forward ...
2
votes
4
answers
2k
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Units in Special Relativity
I have several small questions about units in special relativity:
I've read somewhere that $c=1$ can be interpreted as lightyears being out unit of length, and years being our unit of time. But that ...