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Tides (physics) HTML5


Most of the time, there are two tides each day. The understanding of this complex phenomenon is not simple and many great scientists (Aristotle, Galileo, Newton, Lagrange) attempted to attain that understanding. Gravitation is the force responsible for this phenomenon. The relative positions of the Moon, the Sun and the Earth explain the observed variations in this phenomenon.
Finally, the form of the littoral plays an important role in explaining the different amplitudes observed on the coasts.

Click on "+24h" to progress day by day in the cycle.
Click on to obtain a continuing display.

Learning goals

  • To illustrate the variations in tidal coefficients at one point on the littoral
  • To use an astronomical view to explain the Earth’s tides

Learn more

The combined effects of the gravitational force of the Sun on the Earth on one hand, and of the Moon on the Earth on the other hand, are at the origin of the Earth’s tides. As the Law of…

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