Science Myth – ocean tides

Science Myth – ocean tides – Brief Article

MYTH: Ocean tides occur because the water is pulled toward the moon.

FACT: Lunar gravity actually distorts the oceans into a slightly oval shape. Water piles up on the side toward the moon. But it also piles up on the opposite side, where the weaker lunar gravity lets the water drift away from the moon. These two tidal bulges remain essentially stationary over the time it takes Earth to rotate, which is why there are two high tides each day, not just one.

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