بروز مدي

Figure 1: Comet Shoemaker-Levyتسعة in 1994 after breaking up under the influence of Jupiter's tidal forces during a previous pass in 1992.

البروز المدي Tidal force هوحدوث ركامين مائيين من بحار الكرة الأرضية يحدثان بعمل قوة جاذبية الشمس والقمر. وطالما تدور الكرة الأرضية حول محورها جميع يوم فهذان البروزان يتحركان فوق سطح الارض وينتجان المد والجزر .

الشرح

Figure 2: The Moon's (or Sun's) gravity differential field at the surface of the earth is known as the Tide Generating Force. This is the primary mechanism that drives tidal action and explains two tidal equipotential bulges, accounting for two high tides per day. In this figure the moon is either on the right side or on the left side of the earth.

آثار قوى المد والجزر

Figure 3: Saturn's rings are inside the orbits of its moons. Tidal forces prevented the material in the rings from coalescing gravitationally to form moons.

العلاقة الرياضية

Figure 4: Graphic of tidal forces; the gravity field is generated by a body to the right. The top picture shows the gravitational forces; the bottom shows their residual once the field of the sphere is subtracted; this is the tidal force. See Figure 2 for a more exact version