Recent questions in Speed of Light

+7 votes

0 answers

Why does one planet travel faster than another?

asked Feb 15, 2023 in Speed of Light by KJLM (1.8k points)

+127 votes

0 answers

If you are traveling at light speed or faster, can you get back to the same place in space and time?

asked Feb 15, 2023 in Speed of Light by doug2006

+21 votes

0 answers

How does the driver of the train drive in the dark, because there is not much light in the train?

asked Feb 15, 2023 in Speed of Light by Johnik

+184 votes

0 answers

Does a photon come into existence already at the speed of light or does it have to accelerate to the speed of light after it comes into existence?

asked Feb 15, 2023 in Speed of Light by DarrenPCooley

+29 votes

0 answers

Can you travel faster than the speed of light and still exist?

asked Feb 14, 2023 in Speed of Light by Floorman

+43 votes

0 answers

As a non-physicist what am I missing? I know tiny objects can move huge amounts relative to their size, but huge object could feasibly barely move relative to their size due to the limit of speed of light.

asked Feb 14, 2023 in Speed of Light by gangjibboom

+5 votes

0 answers

Is it possible for matter to travel the speed of light without warping space?

asked Feb 14, 2023 in Speed of Light by Chris Rixson

+23 votes

0 answers

Is travel at the speed of light ever theoretically possible? Is a well-established "theory" a universal truth, when enough people believe that it should be so? What is electromagnetic propulsion? Why are our physics flawed?

asked Feb 14, 2023 in Speed of Light by StellarFrost

0 votes

0 answers

Why does time appear to slow down as an object approaches the speed of light (in vacuum)? What physical reason could there be for this phenomenon?

asked Feb 14, 2023 in Speed of Light by sarah calothis

+19 votes

0 answers

If an early star from the beginning of the universe is now near the edge of the known universe, does its light pass thru the edge of the universe, assuming the universe is expanding slower than speed of light?

asked Feb 14, 2023 in Speed of Light by twisty

+122 votes

0 answers

Can you explain how to calculate the speed of light in meters per second using the formula

asked Feb 14, 2023 in Speed of Light by SteveMJ

+23 votes

0 answers

Can anyone tell me something that has no feather, but can fly, had no legs, but faster than aeroplane?

asked Feb 14, 2023 in Speed of Light by NebulaDreamer

+154 votes

0 answers

What is the experimental confirmation of the light speed invariance?

asked Feb 14, 2023 in Speed of Light by Cotswold Builders

+19 votes

0 answers

What is the speed of light? Is there any object that can travel faster than the speed of light? If not, why not and what are its consequences?

asked Feb 14, 2023 in Speed of Light by lauren7264

+27 votes

0 answers

How does light know when to stop? What stops it from travelling infinitely?

asked Feb 14, 2023 in Speed of Light by LunarHorizon

+36 votes

0 answers

How do we prove that we move at the constant speed of c (the speed of light) through time/space-time?

asked Feb 13, 2023 in Speed of Light by BarryRourke

+285 votes

0 answers

If we travelled at the speed of light, how much time would pass on Earth while we were gone?

asked Feb 13, 2023 in Speed of Light by mappman

+1.2k votes

0 answers

How long would it take a spacecraft to get to Proxima Centauri (the closest star to our solar system) traveling at light speed? How much fuel would be required for such a journey?

asked Feb 13, 2023 in Speed of Light by NicholasTowner874

+103 votes

0 answers

Why does light slow down in mediums other than vacuum?

asked Feb 13, 2023 in Speed of Light by Deccy

+6 votes

0 answers

What happens when an object moves at the speed of light in the reference frame of another moving at the speed of light with respect to it? Does the object get shorter and slower as we approach the speed of light?

asked Feb 13, 2023 in Speed of Light by BlazeHarmony

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