(extract) In a description of a dynamic process, the various time scales (fre quendes) contributing to the process make up a characteristic spectrum. This spectrumshows how the energy of the process is distributed as dif? ferent kinds of motion. An example of such a process is a simple har? monic oscillator, which has a spec? trum consisting of a single frequency. In comparison, a random times series has a spectrumthat is quite broad, because many frequencies contribute to the underlying dynamics. A fractal processor fractal time series is ...