DNAAnderson ChanAward: Honors Procedures
School: trinity school In yoyoing, there are many different ways that physics affects the yoyo. For example, the trick that is shown in the photo, the DNA, is dependent on the amount of string tension, and rotational speed of the yoyo. The first step to creating the wave is throwing the yoyo at an angle, making it rotate at high speeds. Then the yoyo is caught by my finger, which has a glove on it to reduce friction. The reduction of friction allows the yoyo to lose rotational speed slower. Then the string is whipped to move into the gap of the yoyo, triggering its response system. The friction between the response pads causes the string to rotate, but as it rotates, the string is put into the air directly above the yoyo. This is when the wave is created. As the string is directly attached to the yoyo, it creates a standing wave as seen in the picture. While the string is in this wave, the tension steadily increases, speeding up the wave, and increasing the size of the wave. This cannot be maintained, however, as the yoyo loses speed while spinning, forcing the person to bring the string down to the yoyo to end the trick. 
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