RE: What Did Einstein Mean when He Said Space is Curved?
June 5, 2017 at 10:14 am
(This post was last modified: June 5, 2017 at 10:26 am by Alex K.)
The easiest effect of curvature to understand is that parallel rays of light can change their distance, like when two people start at the equator walking north in parallel, they will meet at the pole because the surface of the earh has curvature. The same can happen in space when it is curved. In flat space, parallel lines keep their distance.
The technical definition of curved he uses is that the Riemann curvature tensor is not zero.
The technical definition of curved he uses is that the Riemann curvature tensor is not zero.
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition
