Recent questions in Speed of Light

+20 votes

0 answers

What would happen to a human being in a spacecraft travelling at the speed of light?

asked Oct 14, 2022 in Speed of Light by CelestialDreamer

+6 votes

0 answers

What is the difference between time travel and travelling faster than the speed of light (FTL)?

asked Oct 14, 2022 in Speed of Light by RadiantCharm

+7 votes

0 answers

How do we prove that matter cannot travel faster than the speed of light? Why is it important to know this fact?

asked Oct 14, 2022 in Speed of Light by skinny d

+9 votes

0 answers

How does time exist if nothing can travel faster than the speed of light?

asked Oct 14, 2022 in Speed of Light by Angiesluck

+11 votes

0 answers

If we know that light travels more slowly through fog than through a clear environment, how can we claim that a planet in another solar system is so many light years away?

asked Oct 14, 2022 in Speed of Light by Toa

+117 votes

0 answers

If two elementary particles are entangled and one travels near the speed of light thus that it experiences time dilation, in the event of a wave function collapse do they communicate their properties at different points in time?

asked Oct 14, 2022 in Speed of Light by EmberWhisper

+1 vote

0 answers

Can two lights travel at the same speed in opposite directions at the same time?

asked Oct 13, 2022 in Speed of Light by NebulaHarmony

+4 votes

0 answers

What is the heaviest thing that can travel faster than the speed of light?

asked Oct 13, 2022 in Speed of Light by Jonathan Grasty

+250 votes

0 answers

Could Superman ever be as fast as the Flash? If so, could he move faster than light?

asked Oct 13, 2022 in Speed of Light by JayCee2020

+18 votes

0 answers

We can "see" light from a Galaxy that's 18 billion light years away… but light originating from that Galaxy has also been traveling the same distance in the opposite direction. Is the universe at least 36 billion light years across?

asked Oct 13, 2022 in Speed of Light by Monkey Man (2.5k points)

+49 votes

0 answers

What are the effects of acceleration on a spaceship travelling at the speed of light?

asked Oct 12, 2022 in Speed of Light by bedsplumber

+90 votes

0 answers

How do we distinguish a medium to be rarer or denser? Give two reasons.

asked Oct 12, 2022 in Speed of Light by Ian1973

+19 votes

0 answers

If a gamma radiation explosion happened 8000 light years away, and that gamma wave traveled towards the Earth at 12,000km/h, how long would it take to get to us?

asked Oct 12, 2022 in Speed of Light by Mr Sworld

+23 votes

0 answers

How can we do experiments regarding the speed of light if we are unable to travel at that speed?

asked Oct 11, 2022 in Speed of Light by My Home Farm

+20 votes

0 answers

How do we know that traveling faster than light is impossible? If a being from another dimension could travel faster than light, wouldn't they consider us slow as well?

asked Oct 11, 2022 in Speed of Light by MysticEnigma

+27 votes

0 answers

How long would it take to travel 2.5 million light years assuming you travel at the speed of light?

asked Oct 11, 2022 in Speed of Light by micktheminer

+19 votes

0 answers

If an object is travelling at the speed of light, can it move backwards through space-time or even through time?

asked Oct 11, 2022 in Speed of Light by Dan John

+26 votes

0 answers

How long does it take light to travel a distance of one AU (astronomical unit)?

asked Oct 10, 2022 in Speed of Light by StellarSeeker

+327 votes

0 answers

Would our clocks slow down and stop completely if we traveled with the speed of light?

asked Oct 10, 2022 in Speed of Light by Pratish

+151 votes

0 answers

As we approach the speed of light, why does time appear to move slower rather than distance appearing to shorten?

asked Sep 20, 2022 in Speed of Light by Sparks. (2.4k points)

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Recent questions in Speed of Light

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