# Tag Info

### Does the earth’s rotational angular velocity change?

The Earth is not a single rigid body, but consists of at least five separate regions which can move relative to one another. These are the crust (which is the region that we use to measure day length),...
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### Does the earth’s rotational angular velocity change?

To add to @gandalf61's answer: You can also look up solar time. Due to the orbit around the Sun, the Earth has to rotate a bit more than 360° for the sun to get back to the same apparent position in ...
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