THE ARCHIVE · EVERY DISCOVERY
3,553 videos with summaries and linked Hacker News recommendations, arranged by title.
ClojureTV · 2 HN recommenders
Stuart Sierra presents the Component library for Clojure, a way to manage stateful services like database connections and thread pools without global mutable state. He draws on both functional and object-oriented principles.
Not Just Bikes · 5 HN recommenders
Not Just Bikes explains, using Urban3's property-tax analysis, why car-dependent suburbs generate less tax revenue than they cost to maintain, so dense urban cores effectively subsidize them. It is part of a Strong Towns series.
Not Just Bikes · 3 HN recommenders
Not Just Bikes explains that car-dependent suburbs are not the only option, using Toronto's Riverdale as an example of a pre-war streetcar suburb. These walkable neighborhoods are popular but are now effectively illegal to build.
University of California Television (UCTV) · 13 HN recommenders
Robert Lustig of UCSF lectures on the biochemistry of sugar, arguing that fructose and lack of fiber drive the obesity epidemic via insulin. It is the widely viewed 90-minute talk that popularized the anti-sugar case.
FoundMyFitness · 3 HN recommenders
Rhonda Patrick of FoundMyFitness makes a case for isothiocyanates such as sulforaphane from cruciferous vegetables and broccoli sprouts. It covers cancer, aging, heart disease, brain and behavior, and neurodegeneration, with chapter timestamps.
MedCram - Medical Lectures Explained CLEARLY · 6 HN recommenders
Dr. Roger Seheult of MedCram reviews the benefits of sunlight beyond vitamin D, covering the solar spectrum, circadian rhythm, melatonin and infrared light. The lecture runs nearly two hours with timestamps.
SethBling · 2 HN recommenders
SethBling performs the first credits warp in Super Mario World on a real SNES console, a glitch that plays the ending without beating Bowser. The run relies on pixel-perfect positioning and tools such as a helper ROM hack.
Frieze · 2 HN recommenders
A speedrunner-made explanation of the Super Mario World credits warp, an arbitrary code execution glitch that jumps the game straight to the ending. It simplifies the underlying assembly and memory behavior with animations so non-experts can follow.
Keeper1st · 2 HN recommenders
Pianist Tom Brier sight-reads a piano arrangement of the Super Mario World ending theme, working from a first-draft score by Keeper1st. He takes some liberties with the score as he plays.
Dark Footage · 3 HN recommenders
A short video on the US Sprint anti-ballistic missile, which accelerated to around Mach 10 in seconds under extreme g-forces and heat. It includes striking launch footage and a brief development history.
PBS Space Time · 2 HN recommenders
A PBS Space Time episode explaining why faster-than-light travel is equivalent to travelling back in time, using relativity and Minkowski diagrams for different observers.
Martin Donald · 3 HN recommenders
Martin Donald explains the Wave Function Collapse algorithm using Sudoku-like constraint solving and shows how he implemented it with Blender and Godot. It links demos and reference articles.
runevision · 3 HN recommenders
Rune Skovbo Johansen explains Surface-Stable Fractal Dithering, a technique he invented and released as open source. It makes dithering stick to 3D surfaces and covers the experiments and shortcomings along the way, inspired by Return of the Obra Dinn.
Numberphile · 3 HN recommenders
A Numberphile interview with Donald Knuth about how he came to write the first book on surreal numbers after a lunch with John Conway. He tells the story casually in about 14 minutes.
VICE · 4 HN recommenders
A VICE documentary that visits Agafia Lykova, last surviving member of the Lykov family of Old Believers who fled into the Siberian taiga in 1936. It shows how she lives in remote isolation and the outside world encroaching on it.
Berkman Klein Center for Internet & Society · 3 HN recommenders
Susan Crawford talks at Harvard's Berkman Klein Center about her book Captive Audience. She argues that deregulation and consolidation left a few telecom companies in control of American internet access, so people pay too much for slow service.
erg0steur · 2 HN recommenders
A 1984 Computer Chronicles segment in which Susan Kare explains the ergonomics and interface design of the original Macintosh. She introduces the interface step by step for newcomers.
Harvard University · 3 HN recommenders
David MacKay, scientific advisor to the UK energy department, gives a Harvard talk on sustainable energy at macro and micro scale, drawn from his book Sustainable Energy Without the Hot Air. It stresses the land area renewables require.
Vivekananda Samiti, IIT Kanpur · 2 HN recommenders
A lecture by Swami Sarvapriyananda at IIT Kanpur on the Mandukya Upanishad and the question 'Who am I?'. It explains the four states of consciousness in Advaita Vedanta.
Kalman Reti · 5 HN recommenders
Symbolics developer Kalman Reti gives a short introductory demo of a Symbolics Lisp Machine running Genera in an emulator. It shows the context-aware command line, typed on-screen objects, and the live-editable system, including swapping in a C-compiled JPEG decoder.
Red Martian · 4 HN recommenders
A demo of the Symbolics Graphics Division's S-Packages, a Lisp-based 3D color graphics and animation system from the 1980s. It was later used in developing for the Nintendo 64.
karloch · 2 HN recommenders
A demonstration of SymbOS, a multitasking operating system for 8-bit Z80 machines, running on a real MSX turboR with an MP3MSX card and a CF IDE interface. It shows the OS playing audio and running a graphical desktop on very old hardware, captured from the real machine and not an emulator.
MrFixItDIY · 2 HN recommenders
A woodworker shows how his table saw accident happened, why it happened and how to avoid a similar one. He describes severe hand lacerations from a blade contact.
omnray · 3 HN recommenders
A short overview of Tabs Outliner, a Chrome extension that shows browser tabs and windows as a nestable tree. It demonstrates organizing, saving and restoring tabs.
phuaalvin · 4 HN recommenders
Tourist footage of the 660-ton tuned mass damper in Taipei 101 swaying during tremors from the 2008 Sichuan earthquake. The damper hangs from the 92nd floor.
Valve · 2 HN recommenders
Valve opens up a Steam Deck to show its internal components and explain which are replaceable or upgradable. It advises against self-repair but shares the details openly.
PEACE REBEL · 2 HN recommenders
A 1996 documentary on the twentieth-century American decline of public transport and the role of car companies and the highway lobby in it. It is best known for its account of GM's streetcar buyouts.
The Julia Programming Language · 3 HN recommenders
Jiahao Chen's JuliaCon 2017 talk argues that vector transposes should be taken seriously in type systems and linear algebra libraries. It explains why treating vectors as matrices causes trouble in languages.
Jonathan Blow · 2 HN recommenders
Jonathan Blow gives a roughly 90-minute talk, followed by Q&A, on how video games could actually improve education, in contrast to what is currently being tried.
Ken Jones · 3 HN recommenders
An HBO special in which Jerry Seinfeld, Chris Rock, Ricky Gervais and Louis CK discuss the craft of stand-up comedy. They talk about writing jokes, technique and how they handle old material.
TASVideosChannel · 3 HN recommenders
A recording of the TASBot block at Awesome Games Done Quick 2017, where a robot plays games via tool-assisted speedruns, including Super Mario 64 and Portal on an SNES via arbitrary code execution, and ending with a Twitch Plays segment. It showcases console exploits and creative hardware hacking.
Blue Seat Studios · 3 HN recommenders
A three-minute animated video that explains sexual consent through the analogy of offering someone a cup of tea. It is based on a blog post by Emmeline May.
bigclivedotcom · 2 HN recommenders
Big Clive takes apart an IKEA Koppla USB power supply to assess its safety, looking at isolation and transformer construction.
Autoline Network · 6 HN recommenders
An Autoline After Hours episode where Sandy Munro discusses his complete teardown of the BMW i3, along with automotive journalists. It covers the car's carbon fiber construction and manufacturing technology.
Google · 9 HN recommenders
Linus Torvalds gives a Google tech talk on git, the source control system he created two years earlier. He argues for distributed version control over centralized systems such as CVS and Subversion.
photonhunter · 5 HN recommenders
Ted Nelson demonstrates Xanadu Space, his software for representing hypertext in three-dimensional space with linked, referenced content fragments.
TheTedNelson · 3 HN recommenders
A short excerpt from Werner Herzog's film Lo and Behold in which Ted Nelson lays out his ideas about hypertext and interconnection. Herzog concludes that Nelson is the only sane person in computing.
TEDx Talks · 2 HN recommenders
Copenhagen's bicycle ambassador Mikael Colville-Andersen argues in a TEDx talk that bicycle helmets threaten bicycle culture. He says they distract from road design and make cycling look dangerous.
Thoj · 3 HN recommenders
Musician Thoj performs a live looping session on the Teenage Engineering OP-1 synthesizer, building a deep house track layer by layer.
Dobson Astro-Initiatives · 4 HN recommenders
A roughly 90-minute film of John Dobson building a Dobsonian telescope step by step, including hand-grinding the mirror.
CuriousMarc · 2 HN recommenders
CuriousMarc inspects a newly arrived Teletype Model 19, an early military unit built around a Model 15 keyboard and printer, after an initial rough cleaning. It is the first part of a restoration series and touches on 5-bit Baudot code.
LastWeekTonight · 4 HN recommenders
John Oliver's Last Week Tonight segment on televangelists and the 'seed faith' prosperity gospel. It looks at how US tax law lets preachers extract money from poor viewers, and how easy it is to start a church.
Fredrik Knudsen · 7 HN recommenders
Fredrik Knudsen's 86-minute documentary on Terry A. Davis, creator of TempleOS, tracing his work, his schizophrenia and his decline. It is a chronological video essay built on his public posts and videos.
Devoxx · 6 HN recommenders
Martin Gorner's Devoxx talk introduces deep learning with TensorFlow, walking through neural networks for MNIST, how to choose an architecture and how to diagnose networks that fail to train.
3Blue1Brown · 2 HN recommenders
Terence Tao and Grant Sanderson of 3Blue1Brown walk through the cosmic distance ladder, showing how humans measured distances from the Earth to the Moon, Sun, planets and beyond. It includes animations and the history behind each step.
UCLA · 2 HN recommenders
Terence Tao's AMS Einstein Public Lecture at UCLA on the cosmic distance ladder, the chain of methods astronomers use to measure distances from the Earth to distant galaxies. It is aimed at a general audience.
Tesla · 2 HN recommenders
Tesla's full AI Day 2022 presentation, covering the Tesla Bot hardware and software, Full Self-Driving planning and perception, the occupancy network, data labeling, simulation and Dojo training infrastructure.
Tesla · 3 HN recommenders
Tesla's roughly four-hour Autonomy Day investor event covers its in-house self-driving chip, vision-only approach, fleet data engine and robotaxi plans, with talks by Andrej Karpathy and others.
Tesla · 3 HN recommenders
Tesla's 2020 Battery Day event, with a company update and a keynote on new cell design, manufacturing, vertical integration and cheaper lithium and materials. It ends with the Plaid Model S and a Q&A.
SuperfastMatt · 3 HN recommenders
SuperfastMatt looks at how the Tesla Model S retracting door handles were redesigned over time, from many parts to a motor plus sensor, with a focus on engineering and reliability.
Sabin Civil Engineering · 2 HN recommenders
An engineering explainer on why Tesla abandoned the induction motor for the Model 3 and used an IPM-SynRM design. It covers the reluctance torque and permanent magnet principles behind the choice.
Autoline Network · 5 HN recommenders
An Autoline After Hours episode with teardown expert Sandy Munro and a panel of auto journalists. It covers his Tesla Model 3 teardown, including the battery, drive modules, build quality and manufacturing automation.
NightHawkInLight · 2 HN recommenders
NightHawkInLight demonstrates how a Tesla valve works by sending a propane flame front through one, making the flow visible. It is a short, hands-on experiment video.
Adam Savage’s Tested · 3 HN recommenders
Adam Savage's Tested spends a week with the Magic Leap One developer kit. They dig into the hardware, display technology, user experience and launch apps.
Jim Lill · 3 HN recommenders
Guitarist Jim Lill spends a year testing where guitar amplifier tone comes from, swapping tubes, rectifiers and bias types. He finds that much of it can be reproduced with EQ and distortion in different orders.
Jim Lill · 4 HN recommenders
Guitarist Jim Lill methodically tests what in an electric guitar affects its tone, swapping parts on a partscaster and even trying a 2x4 body. He finds that wood and construction matter far less than people assume.
Adam Neely · 3 HN recommenders
Adam Neely tests the claims for tuning to A=432 Hz by trying the unusual tuning systems that its proponents' numerology requires. He compares how they sound against standard tuning and temperaments.
Veritasium · 2 HN recommenders
Veritasium's Derek Muller spends an hour in a silent, dark anechoic chamber at BYU to test the claim that 45 minutes is the most anyone can bear. He reports on his experience and other people's reactions.
VELCRO® Brand · 3 HN recommenders
Velcro's follow-up to its "Don't Say Velcro" ad responds to viewer feedback, with a humorous take on trademark usage and alternative names for hook and loop fasteners.
Angela Collier · 3 HN recommenders
Angela Collier, a physicist, revisits her earlier dark matter video, explaining dark matter as a set of observations rather than a theory and discussing MOND comments.