Tides are not just sea movements; they are keys to Earth’s past. The book explains how the Moon and Sun influence ocean levels, and why lunar tides usually dominate. It also introduces the idea that tidal effects follow a different rule than gravity, helping readers grasp a big shift in how we measure celestial forces. Through straightforward reasoning, you’ll see how careful observations of tides can illuminate the history of the Earth–Moon system and the evolution of our planet.

Learn why the lunar tide is stronger than the solar tide in most conditions.
See how the tide-producing force scales with distance, following an inverse-cube rule.
Explore how tidal energy relates to the Earth’s rotation and the Moon’s orbit.
Understand spring and neap tides and how tides can reveal the masses of the Sun and Moon.

Ideal for readers curious about how everyday ocean movements connect to long-term Earth history and celestial dynamics.

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