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| | Chapter 7, Section 6 (Site not responding. Last check: 2007-09-29) |
 | | Thus, instead of one tidal bulge, there are actually twoone pointing toward the Moon, the other toward the Sunand the interaction between them accounts for the changes in the height of the tides over the course of a month or a year. |
 | | The tidal influence of one body another diminishes very rapidly with increasing distancein fact, as the inverse cube of the separation. |
 | | Instead, because of the effects of friction, both between the crust and the oceans and within Earth itself, Earth's rotation tends to drag the tidal bulge around with it, causing the bulge to be displaced by a small angle from the EarthMoon line, in the same direction as Earth's spin (Figure 7.24). |
| astronomy.nju.edu.cn /astron/AT3/AT30706.HTM (1617 words) |
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