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juggling frequency

Numerical simulation of frequency adjustment for two ball, one hand, cascade juggling obtained by my physical model of cascade pattern proposed in my engineering thesis. In my model I consider basketlike rotating hand with constant frequency. The prop is held in the hand by the force of gravity. When the inertia force balances the gravity prop continues its movement with initial velocity in constant gravity field. Starting with initial rotation frequency, with every two full turns frequency of the hand increase, until it matches the two ball juggling frequency.