parts unknown

A one-minute clip of Donald Rumsfeld's 'known knowns, unknown unknowns' remarks at a Pentagon briefing.

An update from the Strange Parts YouTuber on his recovery from a brain injury caused by a metal pipe while filming, and his plans for the channel.

Douglas Crockford's 2009 Google tech talk on the good and bad parts of JavaScript, based on his book. He argues for using a reliable subset of the language and avoiding its flawed features.

Hugh Jeffreys tests the iPhone 14 Pro and finds that swapping genuine parts between phones disables features, concluding that third-party repair is not really viable despite Apple's Self Service Repair program.

A short clip from Anthony Bourdain's Parts Unknown in which he and chef Sean Brock end a long night of drinking at a Charleston Waffle House. It celebrates the unpretentious, welcoming late-night diner. Bourdain's remark comparing the meal favorably to the French Laundry is what people remember.

A CNN clip from February 2002 of Donald Rumsfeld explaining the idea of known knowns, known unknowns, and unknown unknowns at a press briefing.

Strange Parts spends four months, seven custom circuit boards and several disassembled iPhones adding a working headphone jack to an iPhone 7 in China. The build is documented in detail.

Evan Czaplicki, creator of Elm, discusses the hard parts of running an open source project: online community conflict, why its patterns arise, and a cultural history of open source. He offers ideas for more civil, productive communication.

Douglas Crockford's Nordic.js 2014 talk on 'the better parts' of JavaScript and programming in general. He argues against `this`, `new` and ES6 classes, and for classless, composition-based object patterns, with some broader remarks on building better structures for the future.

Martin Kleppmann surveys current research on CRDTs, the algorithms for merging concurrent edits across offline replicas. He covers the hard parts such as rich text, moves and merge results that are technically correct but poor.

Slavoj Zizek discusses his book Violence in an Authors@Google talk in New York. He covers ideology, including his idea of the unknown knowns.

Destin Sandlin tours a progressive metal stamping factory, showing machines that stamp millions of metal parts and the tooling behind them.

Chris Seaton talks about JRuby+Truffle, explaining how the Truffle and Graal combination optimises the tricky parts of Ruby and why it outperforms other Ruby implementations.

Hugh Jeffreys tears down the iPhone 13 and assesses its repairability, showing how Apple ties parts like the display and Face ID hardware to specific devices. He demonstrates that swapping parts, even genuine ones, can disable features.

Hugh Jeffreys tears down the iPhone 12 and assesses its repairability, focusing on how parts are serialized and tied to the device so swapping components between phones does not work.

Strange Parts builds a working refurbished iPhone 6S entirely from components bought in the Huaqiangbei phone parts markets in Shenzhen. The video explains how the markets work and what the parts cost.

A 1953 US Navy training film explaining the basic mechanisms in mechanical fire control computers aboard ships. It shows how gears, differentials and cams solved mathematical problems in permanent mechanical form.

Java Language Architect Brian Goetz talks at a Clojure conference about the challenges of evolving a mature language like Java while preserving compatibility with existing code and developer expectations. It also gives a look at where the platform is headed.

Nina Teicholz, author of The Big Fat Surprise, speaks at Low Carb Gold Coast 2017 about the history and health implications of vegetable and seed oils. She covers the political and institutional forces behind dietary fat advice.

The first 3.5 hours of Tony Alicea's Udemy course on JavaScript's inner workings, covering topics such as first-class functions, closures, prototypal inheritance and how the language behaves under the hood.

Louis Rossmann argues that Apple's Independent Repair Program is a PR stunt that misleads the public and burdens independent repair shops. He discusses parts access restrictions and program limits.

Strange Parts tours JLCPCB's large PCB factory in Huizhou, China, walking through the printed circuit board manufacturing process step by step. It shows the machinery, quality checks and scale behind cheap prototype boards.

Scotty Allen of Strange Parts travels through Shenzhen's Huaqiangbei markets and learns to upgrade an iPhone 6s from 16GB to 128GB by swapping its flash chip. It is part 3 of his custom iPhone series and shows the difficulty of the hands-on repair work.

Real Engineering explains the materials science behind metal 3D printing, including crystal structure, laser sintering, and why printed parts develop fatigue cracks. It shows how process imperfections limit the strength of printed metal.

Oracle Red Bull Racing follows a single front suspension bolt through its life, from sketch and drawing through machining, testing, assembly and racing.

Technology Connections takes apart a 1940s Sunbeam Radiant Control toaster. It senses the toast's own browning and lowers and raises it automatically using purely mechanical parts and no electronics.

A 1953 US Navy training film on the basic mechanisms in fire control computers: shafts, gears, cams and differentials. It shows how these mechanical parts compute ship and target firing solutions.

Stefan Karpinski's European Lisp Symposium 2016 talk asks whether Julia is a Lisp. He covers the features it borrows from Lisp, such as macros and closures, and where it departs, including syntax and its type system, with generated machine code shown.

The first lecture of Jordan Peterson's 2017 Maps of Meaning course, setting out the Cold War context for his theory of belief and culture. He introduces the narrative structure of culture and archetypal characters for the individual, the known and the unknown.

Chris McCord's ElixirConf EU 2019 keynote introducing Phoenix LiveView, which builds interactive server-rendered apps without writing JavaScript. It explains how only changed dynamic parts are sent over a websocket.

AvE tears down the Juicero cold-press juicer, examining its heavily machined parts, electronics and the pricey juice packs. He pokes fun at the product and venture-funded culture along the way.

Oh The Urbanity! argues that most city dwellers live in dense residential neighbourhoods outside downtown, which can be calm and peaceful. It draws on older, denser parts of Toronto and Montreal.

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.

Runar Bjarnason's Scala World talk argues that restraint and precision in components beat power and flexibility. Constraints on parts make them easier to compose into systems.

Destin Sandlin tours United Launch Alliance's rocket factory with CEO Tory Bruno, showing friction stir welding, structural rocket skins and large milled parts.

Matt Adereth's Clojure/conj talk covers the history of keyboards and how he used Clojure generating OpenSCAD to design and build his custom Dactyl ergonomic keyboard, including 3D printing and laser-cut parts.

Harvard Belfer Center lecture by Matthew Bunn explaining how nuclear bombs work, including fission and fusion weapons and which parts of bomb-making are hard. It is part 1 of 2 in the Nuclear 101 series.

A University of Michigan Medicine demonstration of building a cheap DIY air purifier from a box fan and a HEPA or high-MERV filter using hardware-store parts. It explains why this helps against dust, smoke and viruses and ties it to local air quality readings.

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.

A short Ericsson film demoing Erlang, showing concurrent processes, debugging tools, and hot code reloading, including crashing parts of a running system while calls continue.