Recent questions in Special Relativity

+49 votes

0 answers

How is the expansion of a vacuum faster than light?

asked Feb 15, 2023 in Special Relativity by KIAB (2.9k points)

+195 votes

0 answers

Do we live in an infinite dimensional universe, on the order of Hilbert space but real rather than conceptual? Were this so, what significance would it have for quantum mechanics, quantum field theory, special relativity and general relativity?

asked Feb 15, 2023 in Special Relativity by NebulaSeeker

+300 votes

0 answers

How does the speed of light depend on the direction we are moving with respect to its source?

asked Feb 15, 2023 in Special Relativity by chefdave

+118 votes

0 answers

How did Voyager get to where it is now if we can never reach the speed of light?

asked Feb 15, 2023 in Special Relativity by Peter Luther (3.6k points)

+125 votes

0 answers

If the photon is stationary from its reference frame, why is it moving from ours?

asked Feb 15, 2023 in Special Relativity by buildrite

+16 votes

0 answers

Why can't sound travel as fast as light?

asked Feb 14, 2023 in Special Relativity by Shooglepops

+3 votes

0 answers

What would happen if light waves could travel faster than the speed of light?

asked Feb 14, 2023 in Special Relativity by honeysuckle

+324 votes

0 answers

What are the properties of an object that is faster than light? How does this affect space-time around it?

asked Feb 14, 2023 in Special Relativity by dragon

+20 votes

0 answers

If the velocity of a body increases, what happens with its mass?

asked Feb 14, 2023 in Special Relativity by dual193

+137 votes

0 answers

How do we calculate the velocity of an object when its mass increases with increasing velocity according to Einstein's equation "E = mc²"?

asked Feb 14, 2023 in Special Relativity by SeraphicMystic

+18 votes

0 answers

What is the frequency of a wave that has a velocity equal to the speed of light?

asked Feb 14, 2023 in Special Relativity by Tazmon

0 votes

0 answers

How close to the speed of light do have to get for you to start experiencing time dilation?

asked Feb 14, 2023 in Special Relativity by SeraphicPulse

+23 votes

0 answers

In theory, in absolute and not relative terms, why is anything limited to the speed of light?

asked Feb 14, 2023 in Special Relativity by HugeWesty

+5 votes

0 answers

If a photon travels at the speed of light would their travel time, from their perspective, be instantaneous? If so, how do they even exist if they are created and destroyed at the same instant?

asked Feb 13, 2023 in Special Relativity by John Lockwood

+3 votes

0 answers

How do scientists think about the problem of someone running faster than the speed of light in real life?

asked Feb 13, 2023 in Special Relativity by M33

+281 votes

0 answers

What is more difficult to achieve, faster-than-light (FTL) travel or time travel?

asked Feb 13, 2023 in Special Relativity by ChilliBob

+5 votes

0 answers

Is light constant speed a science or an expression of ignorance of astronomers and physical scientists of physicists, physical chemists, physical biologists, physical engineers and technologists considering light speed measurements are hypothetical?

asked Feb 13, 2023 in Special Relativity by Rich54

+24 votes

0 answers

How do entangled particles "communicate" faster than the speed of light? Could this phenomenon be used in some kind of Interstellar telephone?

asked Feb 13, 2023 in Special Relativity by James South

+69 votes

0 answers

How do scientists know that it is impossible to create a warp drive or faster-than-light (FTL) technology, without actually trying?

asked Feb 12, 2023 in Special Relativity by TheMightyTM

+9 votes

0 answers

Suppose there are two people. If only one of these two people move more than the speed of light, how can he meet the other person in their past because he is still in the same place?

asked Feb 12, 2023 in Special Relativity by eastbeaver (3.4k points)

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Recent questions in Special Relativity

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