Difference between revisions of "Spacetime"
Jump to navigation
Jump to search
m |
m (typos) |
||
| Line 1: | Line 1: | ||
| − | '''Curvature of spacetime''' (note the singular) of | + | '''Curvature of spacetime''' (note the singular) of stationary universe is none since [[spacetime]] has to be flat on the [[Noether theorem]] that requires flat (or [[Minkowski]], which means the same thing) spacetime for the [[conservation of energy]] to hold. |
| − | The lack of '''curvature of spacetime''' does not | + | The lack of '''curvature of spacetime''' does not require all of 10 [[curvatures of spacetime]] (note the plural) to disappear since they, being non zero, may combine together in flat [[spacetime]] as it may happen in stationary universe where some [[curvatures of spacetime]] together with others may combine in a flat ([[Minkowski]]) [[spacetime]]. |
[[Category: Astronomy]] | [[Category: Astronomy]] | ||
[[Category: Cosmology]] | [[Category: Cosmology]] | ||
[[Category: Physics]] | [[Category: Physics]] | ||
Revision as of 14:48, July 7, 2013
Curvature of spacetime (note the singular) of stationary universe is none since spacetime has to be flat on the Noether theorem that requires flat (or Minkowski, which means the same thing) spacetime for the conservation of energy to hold.
The lack of curvature of spacetime does not require all of 10 curvatures of spacetime (note the plural) to disappear since they, being non zero, may combine together in flat spacetime as it may happen in stationary universe where some curvatures of spacetime together with others may combine in a flat (Minkowski) spacetime.