All Questions
6
questions
0
votes
3
answers
127
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Relativity of bodies in motion in space
I have learnt that if we are travelling in space we have no way to tell if we are moving towards something or if it is the something that is moving towards us; to either object they judge that they ...
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-2
votes
1
answer
40
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Why does relative speed of light when in a non-inertial frame does not increase when viewed from an inertial frame [duplicate]
I mean to ask if I have a moving object and I turn on a bulb in that moving object, when viewed from an inertial frame, we usually add the speed of the moving object with the object's velocity to get ...
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0
votes
2
answers
205
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What does an observer in a reference frame moving with velocity of light see, when another reference frame with velocity c is launched in opposite? [closed]
Suppose a reference frame is moving with velocity c in +x direction. An observer is there. At any time instance, another reference frame with velocity c is launched in opposite direction, i.e. -x ...
28
votes
11
answers
6k
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How can any speed be defined as a constant? [duplicate]
We know that the speed of light is a constant, and can therefore be used to calculate many other relative values, but I'm having difficulty understanding how speed can be a constant, seeing as it's ...
0
votes
2
answers
71
views
Meaning of the term speed of light in context of an object of non-zero mass
We know from GR that an object of non-zero mass cannot propagate at light. I have a problem with the term speed of light. Does it mean the relative speed of that object with another object or frame of ...
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1
vote
1
answer
586
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What would happen to electronic circuits when traveling near the speed of light?
Imagine a space ship, loaded with all sorts of computer systems, traveling near the speed of light.
Electricity itself is very fast, and can reach speeds close the speed of light. (up to 99% ...
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