Pendulums which swing in two dimensions simultaneously and are designed to leave a record of their motion are termed 'harmonographs'. The curves which they draw are known, alternatively, as 'Bowditch curves' or 'Lissajous curves'. A variety of designs of harmonographs have been invented over the years. These may be a 'Y-suspended' 'simple' pendulum, or they may be a complex 'physical' pendulum system. Harmonographs have been built as demonstration apparatus in physics (or mathematics) or as 'art' machines for enjoying the aesthetics of the curves produced. © 2005 Springer.
CITATION STYLE
Whitaker, R. J. (2005). Types of two-dimensional pendulums and their uses in education. In The Pendulum: Scientific, Historical, Philosophical and Educational Perspectives (pp. 377–391). Springer Netherlands. https://doi.org/10.1007/1-4020-3526-8_24
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