THE ARCHIVE · EVERY DISCOVERY
3,553 videos with summaries and linked Hacker News recommendations, arranged by title.
bigclivedotcom · 2 HN recommenders
Big Clive gives a 38-minute beginner's guide to identifying common electronic components and what they do. He keeps the maths minimal and aims to fill gaps for people just starting out.
Mathologer · 3 HN recommenders
Mathologer shows a simple idea, the commutator, that lets anyone who can solve the first layer design their own full Rubik's cube solution. The same idea carries over to other symmetric twisty puzzles such as the Megaminx.
Dyalog · 4 HN recommenders
A Dyalog demonstration of developing a Sudoku solver in APL, using an algorithm by Arthur Whitney with performance work by John Scholes. The narration steps through the array-oriented solution.
sudgylacmoe · 7 HN recommenders
An animated introduction to geometric algebra, presented as a language that can describe most of physics. It was made with manim and covers multivectors and how they generalize familiar tools like cross products and quaternions.
David Beazley · 7 HN recommenders
David Beazley's PyCon India closing keynote, in which he live-codes a stack machine and grows it into an interpreter that runs WebAssembly, then uses it to play a Rust-written game. It requires no prior WebAssembly knowledge.
CGP Grey · 3 HN recommenders
CGP Grey explains what it means that a third of the United States is federally owned land. It describes the agencies that manage it and why so much of it is in the western states.
aConcernedHuman · 2 HN recommenders
Isao Hashimoto's time-lapse map shows all 2053 nuclear explosions between 1945 and 1998, with each nation getting a blip and a running tally. Each second represents one month.
The Power of Prolog · 2 HN recommenders
Markus Triska tours Prolog's most distinctive features, including its use as a database and query language, rule processing, constraint solving and compile-time rewriting. It also covers concise meta-interpreters.
Russ Cox · 11 HN recommenders
Russ Cox gives a 23-minute tour of the Acme text editor from Plan 9, showing its mouse-driven interface, executing commands from text, and its filesystem-based interface to other programs.
Julia Galef · 3 HN recommenders
Julia Galef uses pictures to explain Bayes' rule, then tells three personal stories showing how she applies it to improve her thinking.
Matrixdotorg · 3 HN recommenders
A walkthrough of installing Synapse, Riot and Jitsi from scratch on Debian to run your own Matrix communication service. The description warns it is now quite outdated and links to updated material.
asapmobVEVO · 2 HN recommenders
The official music video for A$AP Mob's Yamborghini High featuring Juicy J, known for heavy datamoshing and glitch effects with hue shifting.
Astronomy and Nature TV · 3 HN recommenders
A very long, detailed look at the A4/V2 rocket turbopump, the steam-turbine-driven twin propellant pump system. It covers the peroxide and permanganate catalysis that drives the turbine. This is part 1 of a series on V2 components.
CGP Grey · 2 HN recommenders
CGP Grey explains the elegant ratio of A4 and the metric paper sizes, then zooms out across scales from the Planck length to the observable universe.
aaltouniversityace · 3 HN recommenders
Linus Torvalds is interviewed at Aalto University in 2012, followed by an audience Q&A. He talks about Linux, kernel development and the desktop, and about Nvidia support. The Q&A has a well-known moment where he is blunt about Nvidia.
FEAR OF A BROWN PLANET · 3 HN recommenders
Aamer Rahman of Fear of a Brown Planet delivers a stand-up routine on so-called reverse racism, arguing about power imbalance and why criticism of a dominant group is not equivalent to racism.
ReasonTV · 3 HN recommenders
A Soho Forum debate in which patent lawyer Stephan Kinsella argues for abolishing copyright and patents against law professor Richard Epstein. Both come from libertarian perspectives.
WIRED · 2 HN recommenders
Dialect coach Erik Singer tours a range of accents across North America with linguists in Part 2 of WIRED's accent series. It covers regional distinctions such as Southern Mississippi, Miami and Utah English.
WIRED · 2 HN recommenders
Dialect coach Erik Singer and several linguists tour distinct accents across English-speaking North America. It is the first part of a WIRED series on US accents.
truTV · 3 HN recommenders
An Adam Ruins Everything segment on the real facts of the McDonald's hot coffee lawsuit, covering the severity of the burns and the corporate PR campaign that painted it as frivolous.
Adam Savage’s Tested · 3 HN recommenders
Adam Savage shows a set of Mitutoyo ceramic gauge blocks and uses them to explain metrology, the science of measurement. He argues that accuracy and precision work differently than most people assume, which changes how you think about every measuring tool.
Andrew Huberman · 3 HN recommenders
Andrew Huberman discusses ADHD, its biology and myths, behavioral and pharmacologic treatments, and training protocols to improve focus for people with or without ADHD. It covers dopamine and the coordination of brain networks.
ADHDtips · 11 HN recommenders
Dr. Russell Barkley gives a nearly three-hour lecture of essential ideas about ADHD for parents, covering what ADHD is, its effects on executive function, motivation and emotion, and how it affects children.
Anti-Defamation League · 6 HN recommenders
Sacha Baron Cohen's speech accepting the ADL International Leadership Award, in which he criticizes social media companies for amplifying hate and propaganda. He argues that freedom of speech is not freedom of reach.
funbury · 5 HN recommenders
Admiral Grace Hopper holds up a length of wire to show how far light travels in a nanosecond, about 11.8 inches. She explains how she made the idea concrete to people who could not picture a billionth of a second.
Le Pietre Rotolanti · 6 HN recommenders
A 1972 song by Adriano Celentano whose lyrics are nonsense syllables designed to sound like American English to non-English speakers. It is a rock and rap-flavored novelty track with a video.
GoogleTalksArchive · 4 HN recommenders
A 2007 Google Tech Talk in which Cliff Click of Azul Systems presents a lock-free concurrent hash table that scales to 768 CPUs. He explains why it is correct by reasoning in a different way than usual happens-before and memory-order arguments.
GOTO Conferences · 11 HN recommenders
Dave Thomas, a co-author of the Agile Manifesto, argues at GOTO Amsterdam 2015 that Agile as a branded industry has lost its meaning. He says agile is an adjective, not a noun, and urges developers to reclaim agility.
Talks at Google · 2 HN recommenders
Eric Brechner, a Microsoft Xbox development manager, presents his Kanban approach for agile project management at Talks at Google. He covers using sticky notes to organize work, estimate and meet deadlines.
Computerphile · 2 HN recommenders
Rob Miles explains on Computerphile why implementing an off switch for a general AI is hard. A capable agent would resist being stopped because shutdown prevents it from achieving its goal.
Welch Labs · 2 HN recommenders
A Welch Labs explainer on neural scaling laws and the compute-efficient frontier, asking why model loss seems to hit a line it cannot cross. It draws an analogy to an ideal gas law for AI.
CraftHub Events · 2 HN recommenders
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.
Computerphile · 3 HN recommenders
Rob Miles explains on Computerphile how language models generate plausible text and how transformers improved on recurrent networks, with a look at what comes next.
Two Minute Papers · 2 HN recommenders
A Two Minute Papers episode on NVIDIA's recurrent denoising autoencoder, which cleans up noisy Monte Carlo path-traced image sequences. It shows how a neural network can produce usable renders from very few samples.
Kurzgesagt – In a Nutshell · 3 HN recommenders
Kurzgesagt examines how AI-generated content is flooding the internet, from video and music to news and books. It looks at how this makes verifying what is real harder.
FunctionalTV · 3 HN recommenders
George Hotz of Comma AI gives a 2017 conference talk on lessons from building a self-driving system. He argues about how driving should be defined and why the common approach to autonomous vehicles is flawed.
AviationTV · 2 HN recommenders
Cockpit footage of a Swiss Airbus A340 crew dealing with rising oil temperature in one engine on a Zurich to Shanghai flight, ending with a safety landing. It shows the pilots' procedures through the emergency.
Lilium · 2 HN recommenders
Lilium's CTO gives a short update on the electric jet's design, certification and development. It shows the canard and rear wing layout and the wheel design.
Every Frame a Painting · 5 HN recommenders
An Every Frame a Painting video essay on how Akira Kurosawa used movement, weather and composition to tell stories. It draws on clips and interviews with other filmmakers.
Alain de Botton · 4 HN recommenders
Alain de Botton's 2004 documentary based on his book Status Anxiety, running over two hours. It asks why people in rich societies are still unhappy, and examines how worries about success, snobbery and meritocracy drive that anxiety.
powerfuloutlet · 10 HN recommenders
Alan Kay's 2009 UIUC talk arguing that computing is more a pop culture than a science and that ignoring history and fundamentals leads to inferior solutions. He touches on the history of interactive environments and what the web should have been.
Colin McDonnell · 4 HN recommenders
An Alan Kay talk on programming and scaling, covering theoretical limits of code size, engineering versus tinkering, and biological cells as inspiration for object-oriented design.
CMU Robotics Institute · 3 HN recommenders
Alan Kay visits Carnegie Mellon's School of Computer Science in 2007 for an informal conversation with faculty and students. He discusses the state of CS education and criticizes mainstream computing.
Jeff Gonis · 6 HN recommenders
Alan Kay's 1997 OOPSLA keynote, preserved on YouTube after being lost from Google Video. He discusses what object orientation was meant to be, messaging, system design, and the state of computing practice.
Vincent Gable · 2 HN recommenders
Alan Kay demonstrates GRaIL, a graphical input language system from around 1968 in which hand-drawn strokes become boxes, connections and dataflow-style programs.
TheTedNelson · 7 HN recommenders
Alan Kay's tribute to Ted Nelson at the Intertwingled festival, presented using a revived Smalltalk-78 system running on emulated 1970s Xerox PARC hardware. It shows live, user-programmable software from that era.
Kenneth Friedman · 6 HN recommenders
Alan Kay's 2015 talk on the power of simplicity, arguing that systems become simpler by building on more sophisticated fundamental building blocks and that big research horizons drove invention at Xerox PARC. It ranges across computing, tools and scaling software.
TED · 2 HN recommenders
Alan Kay's TED talk on teaching ideas, in which he argues the world is not what it seems and shows children learning through programming and building their own lessons with Etoys/Squeak.
Kenneth Friedman · 8 HN recommenders
A full upload of Alan Kay's 1987 talk, with demos of several Smalltalk-era software systems and ideas about visual, kinesthetic and symbolic reasoning. It includes a Smalltalk program written by a 12-year-old and footage of the Rand tablet.
BBC Studios · 2 HN recommenders
A BBC Weird Nature clip about vervet monkeys in the Caribbean that drink alcohol, and how they split into heavy drinkers, social drinkers and teetotalers.
someoddstuff · 2 HN recommenders
Mike Wallace interviews Aldous Huxley in 1958 about the warnings in Brave New World, including mass persuasion, overpopulation and voluntary totalitarianism.
David Lukas · 3 HN recommenders
The famous Alec Baldwin monologue from the film Glengarry Glen Ross, where his character Blake berates salesmen with the 'Always Be Closing' speech. It is a short, profane scene about sales pressure and motivation.
Media Molecule · 7 HN recommenders
Media Molecule's Alex Evans recounts the journey, including the failures, of finding the Dreams engine, based on his Siggraph 2015 talk. It covers the signed-distance-field and splat-based rendering approach and the artistic goals behind it.
CGP Grey · 5 HN recommenders
CGP Grey tells the story of Alexander Pope's long takedown of a historian, Thomas Hearne, framed around the quirks of library books and archival research. It is a funny, digressive video essay about literary feuds and tracking down original sources.
Zürich Friends of Haskell · 2 HN recommenders
Alexis King's ZuriHac 2020 talk on how effect systems in Haskell can be implemented efficiently. It looks at the performance cost of effect libraries and how to reduce it.
AlphaPhoenix · 2 HN recommenders
AlphaPhoenix uses Monte Carlo simulation and annealing-style methods to draw North Carolina congressional district maps, both gerrymandered and fair. He focuses on the fascinating computational problem rather than the politics.
Technology Connections · 2 HN recommenders
A Technology Connections video essay arguing that algorithmic feeds make people passive about finding content, leading to complacency in how they seek information. It urges people to actively choose what they consume.
ObservantVids · 3 HN recommenders
Ali Rahimi's NIPS 2017 Test-of-Time award talk, in which he argues that modern machine learning has become alchemy, working without being rigorously understood. He calls for more rigor and understanding in the field.
Numberphile · 6 HN recommenders
Matt Parker talks Numberphile through the different kinds of numbers: algebraic, transcendental, computable, normal, and beyond. It shows how few numbers we can actually name or describe.
Sabine Hossenfelder · 2 HN recommenders
Physicist Sabine Hossenfelder explains how 5G works and examines the health concerns around millimeter wave radiation. She reviews the scientific evidence and the open letters from scientists.