Recent questions in Speed of Light

+1 vote

0 answers

How can photons have no mass and yet still have energy given that

asked Nov 10, 2022 in Speed of Light by Rory Enright

+21 votes

0 answers

How does light travel at different speeds?

asked Nov 10, 2022 in Speed of Light by rollauthority

+323 votes

0 answers

What happens when you approach the speed of light? How does this affect mass and energy? Are there any conservation laws that are violated when traveling at this velocity?

asked Nov 10, 2022 in Speed of Light by tackleburger

+295 votes

0 answers

Can you explain why there is a maximum velocity at which all matter can travel that's equal to the speed of light?

asked Nov 10, 2022 in Speed of Light by NovaEnigma (2.3k points)

+187 votes

0 answers

Why don't we use the speed of light to measure time (or distances)?

asked Oct 20, 2022 in Speed of Light by Heat

+11 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 Oct 20, 2022 in Speed of Light by The Denes

+20 votes

0 answers

"Impossible is a word of fools" - Napoleon but then is it possible to go faster than light?

asked Oct 19, 2022 in Speed of Light by Fixasign

+23 votes

0 answers

How do I make my theories public? I have some theories regarding time travel and light speed. How do I publish these for people to check if they are feasible?

asked Oct 19, 2022 in Speed of Light by Peter Allen

+22 votes

0 answers

What would happen if you tried to escape from a black hole's gravity by traveling faster than light (FTL) instead of falling into it, like in the movie Interstellar?

asked Oct 19, 2022 in Speed of Light by CelestialDreamer

+16 votes

0 answers

How far can coherent light travel in free space?

asked Oct 17, 2022 in Speed of Light by NebulaSeeker

+76 votes

0 answers

How can cosmic rays travel faster than the speed of light?

asked Oct 17, 2022 in Speed of Light by Michael Northeast

+10 votes

0 answers

If light speed is considered the fastest means of travel, would it not make sense to explore the idea or possibility that the speed in which communication of photons with visible form might reveal something faster, like a speed of transmission maybe?

asked Oct 17, 2022 in Speed of Light by Hammertime176

+16 votes

0 answers

Is there a speed limit for anything faster-than-light (FTL), or can everything go FTL?

asked Oct 16, 2022 in Speed of Light by Chairman M (2.2k points)

+4 votes

0 answers

Since a photon always has known speed, is it impossible to ever know its location precisely due to the HUP?

asked Oct 16, 2022 in Speed of Light by Lee87

+2 votes

0 answers

How does the speed of light appear to be different for an observer in motion?

asked Oct 16, 2022 in Speed of Light by Kelly Burrows

+26 votes

0 answers

If you left Earth in a spaceship and traveled at the speed of light, would you age? How old would your friends be when you returned to Earth?

asked Oct 16, 2022 in Speed of Light by ferocioustibia

+26 votes

0 answers

How many galaxies could we cross if we traveled at the speed of light?

asked Oct 15, 2022 in Speed of Light by MysticTwilight

+23 votes

0 answers

Can missiles ever travel at the speed of light?

asked Oct 15, 2022 in Speed of Light by im a martian

+16 votes

0 answers

At the speed of light, how long would it take to go to Mars?

asked Oct 15, 2022 in Speed of Light by hundleton1

+200 votes

0 answers

What happens to an object's mass as it approaches the speed of light? Will its mass increase or decrease (relative to normal)? Why?

asked Oct 14, 2022 in Speed of Light by Aaron Mcculla

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