Geodesics in general relativity

（重定向自Null geodesic）

In general relativity, a geodesic generalizes the notion of a "straight line" to curved spacetime. Importantly, the world line of a particle free from all external, non-gravitational force, is a particular type of geodesic. In other words, a freely moving or falling particle always moves along a geodesic.

单词	Null geodesic
释义	Null geodesic 英语百科 Geodesics in general relativity （重定向自Null geodesic） In general relativity, a geodesic generalizes the notion of a "straight line" to curved spacetime. Importantly, the world line of a particle free from all external, non-gravitational force, is a particular type of geodesic. In other words, a freely moving or falling particle always moves along a geodesic.
随便看	trinque Trinquet Trinta trintch trinte Trintignant trintignants trintle trintlment trintoc trintocs trin triode trintroacetonitrile Trintrosan trinuclear trinuclear complex trinuclear dye trinucleate trinucleated trinucleids Trinucleina trinucleon trinucleons trinucleosome trinucleosomes