## Differential Rotation

**Differential rotation** is seen when different parts of a rotating object move with different angular velocities (rates of rotation) at different latitudes and/or depths of the body and/or in time. This indicates that the object is not solid. In fluid objects, such as accretion disks, this leads to shearing. Galaxies and protostars usually show differential rotation; and examples in the Solar System include the Sun, Jupiter and Saturn.

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### Some articles on differential rotation:

**Differential Rotation**of The Sun

... See also Solar

**rotation**On the Sun, the study of oscillations revealed that

**rotation**is roughly constant within the whole radiative interior and variable with radius and latitude ... The Sun has an equatorial

**rotation**speed of ~2 km/s its

**differential rotation**implies that the angular velocity decreases with increased latitude ... The poles make one

**rotation**every 34.3 days and the equator every 25.05 days, as measured relative to distant stars (sidereal

**rotation**) ...

**Differential Rotation**

... Surface

**differential rotation**is observed on stars such as the Sun when the angular velocity varies with latitude. 31993.) The first such star, other than the Sun, to have its

**differential rotation**mapped in detail is AB Doradus ... The underlying mechanism that causes

**differential rotation**is turbulent convection inside a star ...

### Famous quotes containing the words rotation and/or differential:

“The lazy manage to keep up with the earth’s *rotation* just as well as the industrious.”

—Mason Cooley (b. 1927)

“But how is one to make a scientist understand that there is something unalterably deranged about *differential* calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the precession of the equinoxes.”

—Antonin Artaud (1896–1948)