delton
Could someone please, briefy explain length contraction under general relativity?? Is it possibly for the universe to contract around a spaceship so that the distances between stars become only inches.. and thus it becomes possible to reach stars lightyears away in very little time?

THe quiz "misconceptions on general relativity" on this site seems to support this, but is it true??

delton said:
Could someone please, briefy explain length contraction under general relativity?? Is it possibly for the universe to contract around a spaceship so that the distances between stars become only inches.. and thus it becomes possible to reach stars lightyears away in very little time?

THe quiz "misconceptions on general relativity" on this site seems to support this, but is it true??

you sure this is a k-12 problem? :tongue2:

Homework Helper
If I were you I'd start with special relativity, which also predicts length contraction. I am not a physicist or a moderately intelligent person; and I feel as if I am lightyears away from the outermost circle of Gen. Rel. -- except when I am moving very, very fast.

Homework Helper
Yes, it is true. If you are moving very fast- very close to the speed of light relative to some "stationary" place, youcan get from one star to another quickly.

sid_galt
HallsofIvy said:
Yes, it is true. If you are moving very fast- very close to the speed of light relative to some "stationary" place, youcan get from one star to another quickly.

Does that mean that in practical terms, it doesn't make much difference if the object cannot reach the speed of light?