single answer

The preface to Herb Gross's MIT OpenCourseWare 'Calculus Revisited: Single Variable Calculus', an older black-and-white lecture series. It introduces his approach to teaching calculus from the basics.

A SIGGRAPH Asia 2013 research demo of 3-Sweep, a tool for extracting editable 3D objects from a single photo using a few user strokes. It predates modern AI image tools.

Tom Scott performs a fictional story at GeekyConf about the day Google accidentally stops checking passwords, letting anyone into any account. It works as a parable about how a single point of failure in login can unravel everything built on it.

A short comedy video reading out a famously misspelled Yahoo! Answers question about pregnancy over music.

A short Charlie Rose interview clip of Eric Schmidt discussing Google's direction for search. It is remembered for his remark that returning more than one result is a bug.

A short clip of Dr. Robert Zubrin, author of The Case for Mars, answering why humanity should go to Mars. He argues that societies grow by challenging themselves and that exploration inspires young people.

The full 1997 WWDC session in which Steve Jobs, newly back at Apple, takes developer questions for about an hour. He discusses OpenDoc, Microsoft, clones, Newton, advertising and Apple's strategy.

A one-minute clip of comedian Bill Burr answering whether women can be funny at the Just For Laughs festival.

Linus Tech Tips addresses criticism of its clickbait-style thumbnails in an Honest Answers episode, explaining that the YouTube algorithm pushes creators toward them.

A Google Developers Q&A in which Blink engineering leads and the PM answer the community's top questions about the new Blink rendering engine forked from WebKit.

CNBC coverage of Boeing CEO Dennis Muilenburg answering shareholder questions after the 737 Max crashes. He assures shareholders the plane is safe after a software fix.

CGP Grey explains the Single Transferable Vote, a proportional ranked-ballot system, and why politicians have little incentive to adopt it. It is a short animated explainer of how multi-winner ranked voting works.

Leonard Bernstein's 1973 Norton Lectures at Harvard, starting with Musical Phonology. He draws analogies between music and linguistics, including references to Chomsky.

Technology Connections explains why single-hose portable air conditioners are inefficient and often a poor choice compared with window units. It details how the single hose pulls in warm outside air and wastes energy.

A short demo of a walking droplet on a vibrating silicone oil bath passing through a double slit and producing interference, a macro-scale analogue of pilot-wave behavior.

Rachel Potvin describes the scale of Google's codebase and its custom monolithic source repository. She explains the reasons for the monorepo model, the tooling that makes it workable, and its tradeoffs.

A one-minute clip from James Burke's 1978 BBC series Connections in which he walks past a Saturn V rocket and a timed take-off happens behind him in a single shot, with no green screen.

Jon Ronson, author of The Psychopath Test, gives a TED talk on the blurry line between sane and crazy and on psychopathy as a spectrum, with stories of how the label gets applied.

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.

SpaceX footage of the Grasshopper vehicle's 744 m test hop, filmed from a hexacopter that gets closer than earlier flights. Grasshopper was a vertical takeoff and landing rig built to test returning rockets to the pad.

Linus Tech Tips tests whether higher frame rates and refresh rates improve gaming performance, using Shroud and other players on aim and reaction tests at 60, 144 and 240Hz. The video is sponsored by Nvidia.

Bill Gross, who has founded and incubated many start-ups, ranked hundreds of companies on five factors. He presents the one factor that stood out as the biggest predictor of success.

SpaceX footage of the Grasshopper reusable rocket prototype flying 325 m before landing on its pad. It was the first test to use the full navigation sensor suite and closed-loop control for a precision landing.

Rick Houlihan's AWS re:Invent 2018 deep dive on advanced DynamoDB design patterns. It covers index overloading, GSI sharding, composite keys, graph processing and transactions.

A short clip of Richard Feynman answering an interviewer's question about why magnets repel, explaining that a 'why' question depends on a shared framework of understanding. It illustrates how hard it is to explain fundamentals to a layperson.

A short clip of Neil deGrasse Tyson answering a question about why there are not more women in science. He describes the resistance he faced as a Black kid pursuing science and the systemic barriers many people encounter.

An AWS re:Invent 2019 session for advanced DynamoDB users on design patterns used by large customers, including Amazon retail. It covers GSI sharding, index overloading, graph processing, composite keys and transactional workflows.

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

IBM's record-setting stop-motion film made by moving individual carbon monoxide molecules with a scanning tunneling microscope, illustrating atomic-scale memory research.

A fireside Q&A with the Go team (Pike, Thompson, Griesemer and others) at Google I/O 2012. They answer audience questions about Go's design, goals, garbage collection plans and future.

A Google I/O 2014 fireside chat in which members of the Android platform team answer questions about why the platform works the way it does. It is moderated by developer advocate Reto Meier.

Steve Jobs presents Apple's proposal for a new campus to the Cupertino City Council in June 2011, answering council members' questions about the plan.

A one-minute clip from the 1971 film Willy Wonka and the Chocolate Factory in which a computer refuses to reveal its results. It plays on machines giving unhelpful answers.

Armin Ronacher, creator of Flask, explains how CPython's internals and C API leak into the language's semantics. Using examples like the complexity of the add operation, he shows why Python is hard to optimize or reimplement.

Philip Roberts explains the JavaScript event loop, call stack, callbacks and asynchronous behavior with live visualizations using a tool he built. It demystifies terms like non-blocking and single-threaded.

Richard Feldman argues that functional programming is not the norm largely because of historical accidents, such as C++ popularity, platform exclusivity, marketing spend and network effects, rather than merit. He traces the history of how languages become mainstream.

Daniel Stone, a longtime X and Wayland developer, explains at linux.conf.au 2013 why X11's design became untenable and what motivated Wayland. The talk walks through X's history and accumulated cruft.

Gary Bernhardt's RubyConf 2012 talk on testing in isolation without mocking everything. It goes through behavior versus data, mutation versus immutability, and how a functional core with an imperative shell yields natural isolation and parallelism.

A short BicycleDutch video on how the Netherlands got its cycling infrastructure, including the 1970s protests and the shift away from car-centric planning. The channel later published an updated version.

CGP Grey's quick, witty explainer on the differences between the United Kingdom, Great Britain and England, and the countries that make up the UK.