Bode

Bode is a term that may refer to several different subjects in geography, science, and onomastics. It is a surname of German origin, borne by various individuals. The best known is Johann Elert Bode (1747–1826), a German astronomer who proposed Bode's law, a heuristic rule describing the approximate spacing of the planets in the Solar System.

In engineering and signal processing, a Bode plot is a standard graphical tool for analyzing a system's frequency response. Named after Hendrik Wade Bode, the plot presents magnitude and phase of a system's transfer function as functions of frequency on logarithmic scales and is widely used in control theory and communications.

Geographically, the Bode is a river in central Germany that rises in the Harz mountains and flows into the Elbe. The Bodetal, or Bode Valley, is a notable gorge along the river known for its scenic landscapes.