Recent questions in Time physics

+213 votes

0 answers

If time travel were possible, how would you explain we still have no record of any visitors from the future?

asked Feb 15, 2023 in Time physics by AlexJ

+7 votes

0 answers

How would a human travel through time under his/her own power (not by being sent into the future)?

asked Feb 15, 2023 in Time physics by Severntrent

+294 votes

0 answers

How many seconds are in half an hour?

asked Feb 15, 2023 in Time physics by NovaMystic

+2 votes

0 answers

Is time travel possible in the next 100 years?

asked Feb 14, 2023 in Time physics by Luke3

+7 votes

0 answers

Can time travel be used to meet yourself as an adult or teenager? If so, how would this be done? What effect would it have on the universe/timeline?

asked Feb 14, 2023 in Time physics by charliebrown (2.3k points)

+2 votes

0 answers

If an infrared photon were able to be slowed down enough, would it change automatically to ultraviolet and if slowed down more, would it become a gamma ray?

asked Feb 14, 2023 in Time physics by nigel willson

+16 votes

0 answers

What are physical constants and why are they called as such? Do physical constants remain constant throughout space and time?

asked Feb 14, 2023 in Time physics by wildcat_111

+20 votes

0 answers

Why is the unit of time defined better by an atomic clock?

asked Feb 14, 2023 in Time physics by Philip Jeffery

+123 votes

0 answers

What are the consequences of meeting your past self while traveling through time?

asked Feb 14, 2023 in Time physics by mainman

+186 votes

0 answers

In what ways might a colossal telescope that can glimpse the birth of the universe impact our understanding of time and space?

asked Feb 14, 2023 in Time physics by Adam 80

+268 votes

0 answers

What would you do when you have a limited time to live?

asked Feb 14, 2023 in Time physics by btiw2

+4 votes

0 answers

What is the right time to do something?

asked Feb 13, 2023 in Time physics by excusecore (2.3k points)

+20 votes

0 answers

Are sound waves subject to time dilation?

asked Feb 13, 2023 in Time physics by SolarisWhisper

+64 votes

0 answers

Could tachyonic devices be used to explore the possibility of time travel?

asked Feb 13, 2023 in Time physics by EmberHarmony

+17 votes

0 answers

What are space & time?

asked Feb 13, 2023 in Time physics by surprisinghumiliated

+15 votes

0 answers

What is the name of the theory about travelling forward in time, but backward in space? How does it work?

asked Feb 12, 2023 in Time physics by Raphael88

+14 votes

0 answers

Can space exist without time?

asked Feb 12, 2023 in Time physics by EonEcho

+288 votes

0 answers

How do we know that time travel doesn't result in changes to our timeline?

asked Feb 12, 2023 in Time physics by CelestialEcho

+5 votes

0 answers

How can time dilation be caused by acceleration, when according to relativity, gravity is the only thing that can cause a change in the flow of time?

asked Feb 12, 2023 in Time physics by NebulaScribe

+130 votes

0 answers

If time travelers go back to the past and then remember what happened before the point of divergence, why do they bother going back in time in the first place?

asked Feb 12, 2023 in Time physics by QuantumNova

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