https://news.ycombinator.com/item?id=33071119 https://news.ycombinator.com/item?id=33071119 DonHopkins 11 months ago | parent | context | favorite | on: John W

https://news.ycombinator.com/item?id=33071119 https://news.ycombinator.com/item?id=33071119 DonHopkins 11 months ago | parent | context | favorite | on: John Walker, founder of Autodesk, has died Jim Crutchfield is DOCTOR CHAOS -- he's got a PhD in Complexity Science! https://www.youtube.com/watch?v=B4Kn3djJMCE https://www.youtube.com/watch?v=B4Kn3djJMCE Space-Time Dynamics in Video Feedback A film by Jim Crutchfield, Entropy Productions, Santa Cruz (1984). Original U-matic video transferred to digital video. 16 minutes. James P. Crutchfield. Center for Nonlinear Studies, Los Alamos National Laboratories, Los Alamos, NM 87545, USA. ABSTRACT: Video feedback provides a readily available experimental system to study complex spatial and temporal dynamics. This article outlines the use and modeling of video feedback systems. It includes a discussion of video physics and proposed two models for video feedback based on a discrete-time iterated functional equation and on a reaction-diffusion partial differential equation. Color photographs illustrate results from actual video experiments. Digital computer simulations of the models reproduce the basic spatio-temporal dynamics found in the experiments. 1. In the beginning there was feedback ... James P. Crutchfield. "Space-Time Dynamics in Video Feedback." Physica 10D 1984: 229-245. [pdf] https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984 https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984... [Plates 1-4] https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984.Plates1_4.jpg https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984... [Plates 5-7] https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984.Plates5_7.jpg https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984... https://csc.ucdavis.edu/~chaos/ https://csc.ucdavis.edu/~chaos/