Angular acceleration is the rate of change of angular velocity. Wikipedia, Angular Acceleration

See Also

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acceleration
angular momentum
Angular Momentum coupling
balanced circular orbit
circular orbit
eccentric orbit
elliptical orbit
Etheric Orbital Rotations
Figure 13.01a - Countless Spinning Stars about their common Neutral Center
Figure 9.11 - Compression Wave with expanded and contracted Orbits
half integer spin
integer spin
Intermediate Axis Theorem
Keely Spinning Motor
Orbit
orbital angular momentum
Orbital Plane
orbital speed
rate of rotation
spin
spin angular momentum
spin direction
spin-orbit coupling
spinning effect
spinning sphere
spintronics
12.23 - Time orbit period
12.24 - Time spin period
12.38 - Orbital revolution
19.05.06 - New York Times - Keely Spinning Motor
9.23 - Circular Harmonic Orbit
9.24 - Elliptical Enharmonic Orbit
9.26 - Orbital Phases