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Tom Scott follows the ISO 3103 / BS 6008 standard to make an international standard cup of tea, using specialist tasting equipment. The video shows how precisely the standard is specified.

An IIHS news release video showing crash tests in which truck underride guards fail at relatively low speeds. The institute petitions for a stronger federal standard.

A short documentary clip of Japanese railway workers and Toyota staff using pointing-and-calling, a safety practice of physically pointing at and naming things while working. It includes examples from several railway companies.

The UK DVSA's one-minute guide to the hazard perception part of the driving theory test, covering when to click and how to score well.

A three-minute parody of Adam Curtis's documentary style, assembled from archive footage with his typical narration and leaps of logic.

The Center for Election Science explains favorite betrayal in instant-runoff voting: in some elections, ranking your favorite first can cause your least favorite to win. It contrasts this with plurality voting's spoiler problem.

A short concept video of Microsoft's unreleased Courier, a dual-screen tablet designed as a digital notebook with clippings and annotation. It was first leaked by Gizmodo in 2009.

A two-minute clip of Richard Feynman on the difference between knowing the name of something and actually knowing it. He uses the example of knowing a bird's name in every language and still knowing nothing about the bird.

A demo of Marble Marcher, a game using a fractal physics engine and fully procedural ray-marched rendering. The player rolls a marble through shifting fractal levels.

A BBC Horizon clip demonstrating the McGurk effect, where the same audio sounds like different syllables depending on the mouth movements you see. It shows that people integrate visual speech information into what they hear.

Tom Scott explains why Britain historically has separate hot and cold taps rather than mixer taps, tracing it to how water was stored in tanks. He notes why the hot tap is not safe to drink from.

A two-minute animated introduction to Bitcoin from 2011, explaining it as a peer-to-peer digital currency. It was widely shared in Bitcoin's early days as the standard newcomer explainer.

Tom Scott explains why hold music sounds worse than it used to, tracing it to old telephone exchanges and the audio compression applied by modern switches. It is a short visit to the Milton Keynes Museum.

A short clip of Steve Jobs explaining why Xerox failed, arguing that product people lose out to sales and marketing people once a company becomes dominant.

A short Insider Tech look at Ocado's grocery warehouse where thousands of robots on a grid pack orders, communicating over 4G to avoid collisions. It handles around 65,000 orders a week.

A clip from the documentary American Tongues about the isolated Tangier Island, Virginia, whose dialect is among the most unusual in the US. It is often said to resemble speech from centuries ago.

A short scene from Malcolm in the Middle in which Hal tries to fix a light bulb and is pulled into a growing chain of side repairs.

A short BicycleDutch episode showing how Dutch protected intersections continue cycle paths through the junction without needing extra street width.

A short excerpt of Elon Musk, interviewed by Kevin Rose, explaining first-principles reasoning with the example of the car versus improving horse carriages. He warns it takes much more mental energy than reasoning by analogy.

ETH Zurich researchers demonstrate a quadrocopter that keeps flying stably after losing a motor and propeller entirely, with the algorithm running onboard while a pilot flies it.

A three-minute rant by Harlan Ellison, excerpted from the documentary Dreams with Sharp Teeth, on why creative professionals should always be paid for their work rather than work for free or 'exposure'.

An animation presenting a non-standard helical or vortex model of the solar system, in which the planets trail the Sun through space instead of orbiting in flat circles. The model is a non-conventional view that the author says differs from standard diagrams.

A short clip of the Mythbusters demonstrating superheated water in a microwave, which can erupt violently when disturbed.

The famous 1984 Apple Macintosh Super Bowl commercial, directed by Ridley Scott and based on Orwell's Nineteen Eighty-Four. It casts the Mac as a force freeing individuals from a Big Brother figure, widely read as aimed at IBM.

An IIHS car-to-car crash test pitting a 2015 Nissan Tsuru, sold in Mexico, against a 2016 Nissan Versa, sold in the US. It is a 40 mph, 50 percent overlap collision that shows how safety standards differ between markets.

A short BBC clip narrated by David Attenborough showing crows in Japan using city traffic to crack nuts, dropping them at intersections and retrieving them when the light changes.

Short 2006 footage of station staff in white gloves pushing commuters onto a packed morning train at a Tokyo station on the Toyoko Line.

A short Conan segment in which George R. R. Martin explains that he writes his Game of Thrones books on WordStar 4.0 on a DOS machine.

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.

A short CGP Grey bonus video explaining the shortest-splitline algorithm, which draws electoral districts by repeatedly splitting a state along its shortest dividing line while balancing population. It is offered as a neutral, algorithmic fix for gerrymandering.

A short 2009 amateur video showing an HP MediaSmart webcam whose face tracking follows a white face but fails to track a black face. The uploader presents it as humorous.