Velocity
From The Art and Popular Culture Encyclopedia
(Difference between revisions)
| Revision as of 19:32, 27 February 2010 Jahsonic (Talk | contribs) ← Previous diff |
Revision as of 19:34, 27 February 2010 Jahsonic (Talk | contribs) Next diff → |
||
| Line 1: | Line 1: | ||
| {{Template}} | {{Template}} | ||
| - | + | # A [[vector]] [[quantity]] that denotes the time rate of change of [[position]], or a [[speed]] with the directional component. | |
| - | In [[physics]], '''spacetime''' is any [[mathematical model]] that combines [[space]] and [[Time in physics|time]] into a single construct called the '''spacetime [[continuum (theory)|continuum]]'''. Spacetime is usually interpreted with space being three-dimensional and time playing the role of the [[fourth dimension]]. According to [[Euclidean space]] perception, the [[universe]] has three [[dimension]]s of space, and one dimension of time. By combining space and time into a single [[manifold]], physicists have significantly simplified a large amount of [[Theoretical physics|physical theories]], as well as described in a more uniform way the workings of the universe at both the [[Physical cosmology|supergalactic]] and [[quantum mechanics|subatomic]] levels. | + | # [[rapidity|Rapidity]] of motion. |
| - | + | # The rate of occurrence. | |
| - | In [[classical mechanics]], the use of Euclidean space instead of spacetime is appropriate, as time is treated as universal and constant, being independent of the state of motion of an observer. In [[theory of relativity|relativistic]] contexts, however, time cannot be separated from the three dimensions of space because the rate at which time passes depends on an object's [[velocity]] relative to the [[Light speed|speed of light]], and also the strength of intense gravitational fields which can slow the passage of time, and as such is dependent on the state of motion of the observer and is therefore not universal. | + | |
| - | + | ||
| - | + | ||
| {{GFDL}} | {{GFDL}} | ||
Revision as of 19:34, 27 February 2010
|
Related e |
|
Featured: |
- A vector quantity that denotes the time rate of change of position, or a speed with the directional component.
- Rapidity of motion.
- The rate of occurrence.
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Velocity" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
