Hacker Cinema
Space-Time Dynamics in Video-Feedback
1984 · Film · documentary · 16 min
Directed by James P. Crutchfield
"Abstract Video feedback provides a readily available experimental system to study complex spatial and temporal dynamics." Physics professor Jim Crutchfield talks about, and demonstrates video feedback.
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3 comments on Hacker News
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
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...
[Plates 1-4] https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984.Plates1_4.jpg
[Plates 5-7] https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984.Plates5_7.jpg
https://csc.ucdavis.edu/~chaos/
Jim Crutchfield is DOCTOR CHAOS -- he's got a PhD in Complexity Science!
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.pdf
[Plates 1-4] https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984.Plates1_4.jpg
[Plates 5-7] https://csc.ucdavis.edu/~cmg/papers/Crutchfield.PhysicaD1984.Plates5_7.jpg
https://csc.ucdavis.edu/~chaos/
Also check out Jim "Chaos" Crutchfield's work, and the mesmerizing video feedback he made with his analog video processing computer that he built at the University of California, Santa Cruz for his Ph.D. in physics in 1984.
Jim Crutchfield
https://en.wikipedia.org/wiki/James_P._Crutchfield
https://csc.ucdavis.edu/~chaos/index.html
Space-Time Dynamics in Video Feedback
https://www.youtube.com/watch?v=B4Kn3djJMCE
A film by Jim Crutchfield, Entropy Productions, Santa Cruz (1984). Original U-matic video transferred to digital video. 16 minutes.
See:
https://csc.ucdavis.edu/~chaos/chaos/films.htm
Citation: J. P. Crutchfield, "Space-Time Dynamics in Video Feedback". Physica 10D (1984) 229-245.
https://csc.ucdavis.edu/~chaos/chaos/pubs/stdvf-title.html
Chaotic Attractors of Driven Oscillators
https://www.youtube.com/watch?v=Sq8Vu40Bw1g
A film by Jim Crutchfield, Entropy Productions, Santa Cruz (1982). Original 16mm transferred to U-matic video and then to digital video. 13 minutes.
In 2022, Crutchfield and his graduate student Kyle Ray described a way to bring the heat production of conventional circuits below the theoretical limit of Landauer's principle by encoding information not as pulses of charge but in the momentum of moving particles.
https://www.scientificamerican.com/article/lsquo-momentum-computing-rsquo-pushes-technology-rsquo-s-thermodynamic-limits/
While a graduate student, Crutchfield and students from the University of California, Santa Cruz (including Doyne Farmer) built a series of computers that were capable of calculating the motion of a moving roulette ball, predicting which numbers could be excluded from the outcome:
The Eudaemonic Pie / Newton's Casino: The Bizarre True Story of How a Band of Physicists and Computer Wizards Took on Las Vegas
https://archive.org/details/eudaemonicpie00bass_0/mode/2up