Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q7250072> ?p ?o }
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- Q7250072 subject Q7036087.
- Q7250072 subject Q8482188.
- Q7250072 abstract "The description of motion in relativity requires more than one concept of speed. Coordinate speed is the coordinate distance measured by the observer divided by the coordinate time of the observer. Proper speed is the local proper distance divided by the local proper time. For example, at the event horizon of a black hole the coordinate speed of light is zero, while the proper speed is c. The coordinate speed of light (both instantaneous and average) is slowed in the presence of gravitational fields. The local instantaneous proper speed of light is always c.In an inertial frame an observer cannot detect their motion via light signals as the speed of light in a vacuum is constant. This means an observer can detect when their motion is accelerated by studying light signals.".
- Q7250072 wikiPageExternalLink 0610053v1.
- Q7250072 wikiPageExternalLink 9909081v7.
- Q7250072 wikiPageWikiLink Q1056595.
- Q7250072 wikiPageWikiLink Q11083519.
- Q7250072 wikiPageWikiLink Q1188682.
- Q7250072 wikiPageWikiLink Q15149343.
- Q7250072 wikiPageWikiLink Q181741.
- Q7250072 wikiPageWikiLink Q1848968.
- Q7250072 wikiPageWikiLink Q192735.
- Q7250072 wikiPageWikiLink Q2111.
- Q7250072 wikiPageWikiLink Q2623005.
- Q7250072 wikiPageWikiLink Q5168010.
- Q7250072 wikiPageWikiLink Q558066.
- Q7250072 wikiPageWikiLink Q582007.
- Q7250072 wikiPageWikiLink Q656181.
- Q7250072 wikiPageWikiLink Q7036087.
- Q7250072 wikiPageWikiLink Q7250186.
- Q7250072 wikiPageWikiLink Q8482188.
- Q7250072 comment "The description of motion in relativity requires more than one concept of speed. Coordinate speed is the coordinate distance measured by the observer divided by the coordinate time of the observer. Proper speed is the local proper distance divided by the local proper time. For example, at the event horizon of a black hole the coordinate speed of light is zero, while the proper speed is c.".
- Q7250072 label "Propagation of light in non-inertial reference frames".