الأرض، المد والجزر

علاقة القمر بالمد والجزر

Keep going الأرض، المد والجزر 06 يونيو 2013

من المعلوم أن هناك قوة جذب يؤثر بها القمر على الأرض والعكس كذلك ، وأثناء دوران القمر حول الأرض تصبح قوة جذبه أكبر في بعض الأماكن وتؤثر ...

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