Thread: Two High Tides
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Mothy Mothy is offline
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Two High Tides

Puzzle for you all.

The earth spins on it's axis once every 24 hrs and the moon takes 28 days to rotate around the earth - hense the moon is overhead at a different time each day and the times of the tides shift a small amount each day.

The ocean tides are said to be caused by the gravitational effect of the moon acting on the earth.

If the earth spins only once per day, why are there two high tides each day?
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Old 11-06-2008, 12:30 PM
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