During an ice age, the buildup of ice at the poles and the drop in water levels near the equator speed up the earth’s rotation, like a spinning figure skater whose speed increases when her arms are drawn in.


like a spinning figure skater whose speed increases when her arms are drawn in

like the increased speed of a figure skater when her arms are drawn in

like a figure skater who increases speed while spinning with her arms drawn in

just as a spinning figure skater who increases speed by drawing in her arms

just as a spinning figure skater increases speed by drawing in her arms


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