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Mechanics - Wikipedia, the free encyclopedia |
 | | Briefly stated, mechanics is concerned with the motion of physical bodies, and with the forces that cause, or limit, these motions, as well as with forces which such bodies may, in turn, give rise to. |
 | | Just as one could, in the loosest possible sense, characterize classical mechanics as dealing with "large" bodies (such as engine parts), and quantum mechanics with "small" ones (such as particles), it could be said that relativistic mechanics deals with "fast" bodies, and non-relativistic mechanics with "slow" ones. |
 | | For instance, the motion of a spacecraft is described by classical mechanics, regarding its orbit and attitude (i.e. |
| en.wikipedia.org /wiki/Mechanics (759 words) |
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