Recent questions in Special Relativity

+27 votes

0 answers

Is it possible to go faster than the speed of light and still be within the framework of relativity? If so, how fast can we go before something breaks down?

asked Oct 12, 2022 in Special Relativity by QuantumWhirl

+3 votes

0 answers

Why is the c^2*t^2 factor negative in the spacetime interval formula? Also where did c even come from?

asked Oct 12, 2022 in Special Relativity by Charandeep

+6 votes

0 answers

How fast can the most advanced spacecraft today travel one light year?

asked Oct 12, 2022 in Special Relativity by RadiantNova

+57 votes

0 answers

A 35-year-old astronaut travelling at a speed of 0.75c needs to cover 25 years as measured by a clock on board the spaceship to make a roundtrip to a nearby star. How old would his twin brother be when he returns to Earth?

asked Oct 12, 2022 in Special Relativity by SteamyTea

+6 votes

0 answers

Why does matter have a nonzero speed, unlike that of light's constant velocity in a vacuum? Is there any evidence for this fact apart from Einstein’s theory of relativity?

asked Oct 12, 2022 in Special Relativity by DodgeyDiY2021

+320 votes

0 answers

Why do objects of different masses hit the ground at the same time?

asked Oct 12, 2022 in Special Relativity by PeterT366

+24 votes

0 answers

What is something that can travel at the speed of light but not be seen by humans?

asked Oct 12, 2022 in Special Relativity by Grahammcc

+27 votes

0 answers

If someone is traveling at the speed of light, are they aware of it? Does time pass normally for them?

asked Oct 11, 2022 in Special Relativity by doesitmatter

+58 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 Special Relativity by NebulaNova

+5 votes

0 answers

Did Einstein use complex numbers in his general relativity equations?

asked Oct 11, 2022 in Special Relativity by david radley

+6 votes

0 answers

If the traveling twin in Twin Paradox has aged 2 years less when he arrives on Earth compared to his stay at home twin, does this mean he aged 1 year less on each leg of the trip?

asked Oct 11, 2022 in Special Relativity by Henry M

+1 vote

0 answers

What is the definition of velocity in physics? How do you calculate velocity given values like distance travelled and time taken by an object?

asked Oct 11, 2022 in Special Relativity by MysticSculptor

+15 votes

0 answers

How will humans get around if they ever achieve faster-than-light travel?

asked Oct 11, 2022 in Special Relativity by suckinstructor

+4 votes

0 answers

Can information travel faster than light, or is that information already present to explain entanglement?

asked Oct 11, 2022 in Special Relativity by Shuggy1963. (2.1k points)

+2 votes

0 answers

Since the law of thermodynamics says that matter and energy cannot be created or destroyed then how can the mass of an object increase as it as it approaches the speed of light?

asked Oct 11, 2022 in Special Relativity by Nickjw1965

+11 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 10, 2022 in Special Relativity by BLUEJACKET

+7 votes

0 answers

What are some examples of nonuniform velocity?

asked Oct 10, 2022 in Special Relativity by birke92

+6 votes

0 answers

How can spaceships travel faster than light without causing time dilation?

asked Oct 10, 2022 in Special Relativity by Paul77TR37

+2 votes

0 answers

A recent study has shown that neutrinos may be able to travel faster than light. What are your thoughts on this? Could this lead to a rethinking of Einstein's theory of relativity?

asked Sep 20, 2022 in Special Relativity by Phil the Paver

+11 votes

0 answers

A 2000-kg car gains k.e. of 80,000 after moving at a certain velocity. What is this velocity?

asked Sep 20, 2022 in Special Relativity by tetleyman

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Recent questions in Special Relativity

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