30, 20, and 10 Years Ago in OPN

“One of the most important realizations of the last 30 years has been that chaotic behavior is commonplace in physical, chemical and biological systems. Most scientists and engineers have begun to recognize this inescapable fact. The advent of computers has been responsible for this awakening … A new branch of mathematics, dynamical systems theory, has developed rapidly and now forms the universal mathematical language for the description of chaotic systems in science and engineering. Nonlinear dynamics is the discipline that includes experimental and theoretical investigations of chaos and instabilities.”