In music, a two hundred fifty-sixth note or demisemihemidemisemiquaver is a note played for 1/256 of the duration of a whole note. It lasts half as long as a hundred twenty-eighth note and takes up one quarter of the length of a sixty-fourth note. In musical notation it has a total of six flags or beams. Notes this short are very rare in printed music but not unknown. They are principally used for brief, rapid sections in slow movements. For example they occur in some editions of the second movement of Beethoven's Third Piano Concerto (Op. 37), to notate rapid scales. Another example is in Mozart...

A fractal is a natural phenomenon or a mathematical set that exhibits a repeating pattern that displays at every scale. It is also known as expanding symmetry or evolving symmetry. If the replication is exactly the same at every scale, it is called a self-similar pattern. An example of this is the Menger Sponge. Fractals can also be nearly the same at different levels. This latter pattern is illustrated in the magnifications of the Mandelbrot set. Fractals also include the idea of a detailed pattern that repeats itself. Fractals are different from other geometric figures because of the way in which...