Image:Parabolic dish motion ellipse.gif
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Parabolic_dish_motion_ellipse.gif (256 × 256 pixels, file size: 45 KB, MIME type: image/gif)
Description:
The animation shows a rotating parabolic dish. The dish is solid and it has exactly the same shape as a fluid rotating at that angular velocity has. The dark dot is a puck that can slide over the surface with very little friction. The parabolic dish is very shallow: the up-down motion of the puck is very small compared to the motion parallel to the dish's surface.
Since the force towards the center is proportional to the distance to the center, the shape of the trajectory of the puck is an ellipse. This ellipse can be thought of as two perpendicular harmonic oscillations.
This 256x256 pix animation is a larger version of the left side of the following 256x128 pix animation: Image:Parabolic_dish_ellipse_oscill.gif
Created: 27 February 2006
Author: Cleonis
[edit] Licensing
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This work is licensed under the Creative Commons Attribution-ShareAlike 2.5 License. |
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 15:11, 1 March 2006 | 256×256 (45 KB) | Cleonis (Talk | contribs) | (Corrected version) |
| 14:13, 27 February 2006 | 256×256 (48 KB) | Cleonis (Talk | contribs) | ('''Description:'''<BR> The animation shows a rotating parabolic dish. The dish is solid and it has exactly the same shape as a fluid rotating at that angular velocity has. The dark dot is a puck that can slide over the surface with very little friction. T) |
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