Creating small waves or undulating movements on a surface, or having a spreading effect like ripples in water.
From Middle English 'ripel,' possibly from Old Norse or Dutch origins. The word appeared by the 1500s to describe water movement and metaphorically expanded to describe spreading effects.
When you drop a rock in water, the ripples spread outward in perfect circles—but here's the wild part: the water molecules barely move forward at all, they just bob up and down! The ripples are energy patterns traveling, not water traveling, which is why waves and ripples are different.
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