| World lines: describe the path or orbit that an object travels in space time. Since there is no absolute rest, all macroscopic bodies in the universe describe orbits. These are composed of several components, such as, for example, the orbit of the Earth around the Sun, the orbit of the solar system around the center of the galaxy, and the movement of the entire galaxy. This results in a superposition of several screw motions. See also space time, change, motion, four dimensionalism._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. |
