I. Rubbing two balls:
Two balls of the same size are taken in one hand and with the help of all five fingers lightly rubbed or pushed around each other. At first the balls separate and collide while being rubbed, soon however, they rub softly against each other. The centre of the rotation lies here between the ring and the medium finger, localised about 1 centimetre towards the palm.
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Later the centre is shifted forwards in the direction of the fingers. the centre can also be shifted backwards in the direction of the palm. This depends on the intention of your practise as well as on the size of the balls.
II. Spinning two balls:
With increasing practise the balls can easily be revolved around each other, without them touching; they spin around freely.
To control the free spinning of two balls there are basically two possibilities:
1. Using the centrifugal force which arouses from high speed rubbing. The balls just rotate so fast, that they simply scatter.
2. Throwing and catching two balls simultaneously out of two base positions.
The two positions that are required to be able to spin two balls should be exactly opposing. The balls are then simultaneously thrown from one position to the other with a steady movement. First you have to practice throwing one ball from the first to the next position. Then you have to be able to catch the ball in the next position. Later on with more practise and better skill the balls are simply passed on from base to base with more speed.
It is most effective to start off with the following positions:
Using the thumb:
Without the thumb:
Because pupils/learners prefer grades, I have created the following division:
III. Shoving two balls:
IV. Rolling two balls: