A double pendulum is a pendulum with another pendulum attached to its end, and is a simple physical system[?] that exhibits rich dynamic behavior[?]. The double pendulum is governed by very complicated formulas that can be found here (http://scienceworld.wolfram.com/physics/DoublePendulum). The double pendulum relates to:
... shades of meaning. At its simplest, it refers to an adherent of a monarch or royal family.
Of the more specific uses of the term, the most common include:
1. A ...