All Questions
5
questions
0
votes
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Spacetime dilation Moon vs Earth [closed]
As I understand it, time will pass slightly faster on the surface of the moon compared to the earth
This is due to the difference in velocity and gravitational fields of the two planets.
How could I ...
- 171
2
votes
1
answer
131
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Distant events and simultaneity [closed]
I've been fiddling on this problem for a couple hours now and I'm getting more confused as time moves on, so I have a couple questions. Here it goes:
An event $A$ takes places at the origin of the $...
- 125
3
votes
3
answers
460
views
If an astronaut had stationed in International Space Station for the duration of mission, 17 years, would he be older?
Today the NASA International Space Station started the 100000 orbit after 17 years in the space.
I just wonder if there were a team of astronauts which were in the Lab for all the duration of last 17 ...
- 1,659
2
votes
2
answers
2k
views
Special relativity, calculate velocity
Lets assume that a spaceship travels to a star 8 light-years away, in a time its crew considers to be 8 years. How do we calculate the speed of the ship? Is at as simple as saying: since the star is 8 ...
- 21
6
votes
1
answer
3k
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What is the relativistic calculation of travel time to Proxima Centauri?
It has already been asked here how fast a probe would have to travel to reach Alpha Centauri within 60 years. NASA has done some research into a probe that would take 100 years to make the trip. But ...
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