bell's theorem

MinutePhysics, with 3Blue1Brown, explains Bell's theorem using a Venn diagram paradox and polarizing filters. It shows why no local hidden variable theory can reproduce quantum correlations.

Veritasium explains quantum entanglement and spooky action at a distance, walking through Bell's inequality and the experiments that rule out hidden variables, in under ten minutes.

Shaun's roughly 2.7-hour video essay on The Bell Curve. It covers intelligence, the g factor, IQ tests, IQ versus environment and the politics behind the book, with a critical reading of the sources.

PBS Space Time explains Noether's theorem: conservation laws such as energy and momentum are consequences of deeper symmetries. It also covers why those laws hold only under certain conditions.

Sabine Hossenfelder explains superdeterminism as an interpretation of quantum mechanics, addressing common objections and misconceptions, including the worry that it kills free will or science. She ties it to Bell's theorem and hidden variables.

3Blue1Brown presents Bayes' theorem through a geometric diagram, showing how evidence should update beliefs. It works through the Kahneman and Tversky style questions and base rates.

A 1982 AT&T Bell Labs film for students about the Unix system and how it can be used practically. It includes Lorinda Cherry building a talking calculator by piping together Unix commands, and a spell checker made from Unix utilities.

The 1969 pitch film in which Saul Bass presents the Bell System logo redesign to AT&T, part of the largest corporate re-identity program in U.S. history.

A 1973 AT&T training film made for new employees at Bell Labs' Holmdel Computing Center, when Unix was in its third version and running at 16 computer centers in the Bell System. It shows how users submitted jobs and used the center's machines.

Washington Post video of the experiment in which violinist Joshua Bell played incognito at a D.C. metro station. It asks whether commuters would notice a world-class musician in an ordinary setting.

Dr. John Campbell reviews studies on vitamin D and immunity, including research on respiratory infections, during the early COVID-19 period.

Computerphile with Professor Brailsford on how a 1979 Bell Labs team reverse engineered a Linotron 202 phototypesetter over a summer to get high-quality print output. It covers typesetting history and the later 2013 rebuild of the famous vacation memo.

Chris Stucchio presents the ethical principles behind algorithmic decision making and shows with examples from lending, criminology and education that they cannot all be satisfied at once. The talk frames AI fairness as a set of quantitative tradeoffs.

Bellingcat's publication of the recorded call in which Alexey Navalny, posing as a security aide, gets FSB officer Konstantin Kudryavtsev to describe the operation to poison him. It has English subtitles.

Dr. John Campbell reviews studies on vitamin D deficiency and immunity, including links to influenza and COVID-19, with Public Health England advice. He walks through the sources he cites.

The first lecture of N J Wildberger's History of Mathematics course, starting with Pythagoras' theorem and following Stillwell's text. It emphasizes the flow of ideas over proofs.

3Blue1Brown explains why plotting primes in polar coordinates produces spiral patterns, using modular arithmetic, Dirichlet's theorem and rational approximations of pi.

A Joe Rogan podcast with retired Navy commander David Fravor, who describes his 2004 Tic Tac UFO encounter, and filmmaker Jeremy Corbell. Fravor walks through the incident and the released videos.

Andy Bell's 2022 talk on hinting the browser rather than micromanaging it, using progressive enhancement, CSS layout, fluid type and space, and modern CSS to build resilient front-ends.

3Blue1Brown, in collaboration with minutephysics, introduces the math of superposition and quantum states using polarized light. It builds up the quantum behavior of photons as a simple counting and probability problem.

A sketch from the Seattle comedy show Almost Live! in which Pat Cashman plays a US Bell rep explaining the new 425 area code. It first aired in 1997.

A very short clip titled Criminal Conspiracy Notes, apparently the scene from The Wire in which Stringer Bell scolds his associates for taking written notes at a meeting.

A Bell Labs film in which Dr. J.N. Shive uses a mechanical wave machine to demonstrate reflection, standing waves, resonance and impedance matching. He includes some equations but relies mostly on real-world examples a layperson can follow.

Brian Kernighan interviews Unix co-creator Ken Thompson at VCF East 2019. Thompson recounts how he was hired at Bell Labs, writing the Unix kernel in about three weeks, the origins of B and TMG, pipes, and other anecdotes.

Richard Hamming's 1995 recording of his talk 'You and Your Research', drawn from his graduate engineering course. He discusses how great scientists pick important problems and build careers, drawing on his years at Bell Labs.

A 1982 Bell Labs film hosted by Victor Vyssotsky on the origins and design philosophy of the UNIX operating system, with appearances by Kernighan, Thompson and Ritchie. It shows pipes, filters and a shell one-liner spell checker being built.

Mathematician Kevin Buzzard explains why he believes the Lean theorem prover will shape the future of mathematics, and describes digitizing his university curriculum in Lean with undergraduates, plus the cultural challenges.

BobbyBroccoli's first of three parts on Jan Hendrik Schon, the Bell Labs postdoc whose fabricated organic semiconductor results nearly won a Nobel Prize. It covers his rise and the context around Bell Labs.

Veritasium explores why energy is not conserved in general relativity, using Emmy Noether's theorem linking symmetries to conservation laws. Physicists interviewed explain energy loss in an expanding universe.

A Computer History Museum oral history panel with four 3dfx founders on the company's rise with Voodoo Graphics and Glide, and its fall into bankruptcy. It runs about two and a half hours.

Veritasium explains Bayes' theorem with examples and introduces the 'Bayesian trap', where repeated events get mistaken for inevitable ones. It discusses how priors shape our expectations and behavior.

A six-minute explainer from Undefined Behavior on range (score) voting. It follows an earlier video on Arrow's Theorem and shows how range voting seems to satisfy the criteria Arrow's Theorem says no ranked system can.

Veritasium explains the Dzhanibekov effect, also called the tennis racket theorem, where a spinning object flips unexpectedly about its intermediate axis. The video gives an intuitive account of the underlying rotational dynamics, drawing on Terry Tao's explanation and the original papers.

A 1951 Bell System training film showing how telephone calls are routed through a step-by-step (Strowger) switching office.

Ori Bernstein gives an overview of Plan 9 at a NYC*BUG meeting. He explains what the system is, how it is built, what has happened since Bell Labs, and what its design teaches, with a live demo.

A ten-minute explainer from Hypermind on the wisdom of crowds, covering Galton's discovery and the diversity theorem. It argues that collective intelligence comes from diversity, independence and aggregation.

Rob Pike gives an insider's account of the history of Unix and the development of key pieces of modern computing, including Bell Labs anecdotes.

A 1940 Bell Telephone educational short teaching customers how to use their new dial phones and why the change was happening. It is a period piece about rolling out a new technology to ordinary people.

Lily Tomlin's classic 1976 Saturday Night Live sketch as telephone operator Ernestine, mocking the monopolistic Bell phone company with the line 'We don't care. We don't have to.' It is a one-minute parody of arrogant corporate indifference.

A short look at the Voder, the first electronic voice synthesizer, demonstrated by Bell Labs at the 1939 World's Fair. It was operated by trained women using ten finger keys, foot pedals and a knee lever.