File:Tidal-forces.svg
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DescriptionTidal-forces.svg |
Diagram of tidal forces. The upper picture shows a small planet and the red arrows show the gravitational forces attracting it towards a much larger planet off to the right. Since gravity is proportional to 1/R^2, the forces to the right are slightly larger than those at the center, which are slightly larger than those at the left. The lower picture shows the forces when a constant offset corresponding to the force at the center has been subtracted from all forces. The central force is then, of course, zero. A small force remains towards the right, directed rightwards. A small force, directed leftwards, remains at the left. This is why (perhaps somewhat counter-intuitively) tidal forces lead to a bulge on both sides of the smaller planet. |
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Source | File:Tidal-forces.png |
Author | en:User:William M. Connolley |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
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current | 16:25, 21 October 2009 | 500 × 500 (3 KB) | Justass (talk | contribs) | {{Information |Description=Diagram of tidal forces. The upper picture shows a small planet and the red arrows show the gravitational forces attracting it towards a much larger planet off to the right. Since gravity is proportional to 1/R^2, the forces to |
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