About tides. tell about what they are. explain it.

Basically the moon controls the tide like when it comes up the tide comes but when the sun goes up the tide dies down

Most people grow up thinking that the tides are caused by the moon, and indeed that gravitational 'pull' of the moon is a major factor, as is the gravitational effect of the sun but there is another major factor, which is less often mentioned, and that is the force created by the rotation of the earth itself.

As the earth rotates on its axis once every 24 hours, if the moon stood still then the moon will be overhead and 'underfoot' once in every 24 hours giving (in most places) 2 high and 2 low tides a day, but as the moon is also orbiting in the same direction as the earth revolves it actually takes about 24 hours and 50 minutes for the moon to be in the same place overhead. So the period from one high tide to the next is about 12 hours 25 minutes.

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