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The American Museum of Natural History's film flies from the Himalayas out through the atmosphere and solar system to the afterglow of the Big Bang, using its Digital Universe Atlas four-dimensional map.

A short video of stretching and hand exercises for preventing and easing tendinitis and carpal tunnel syndrome, from a percussion teacher. The exercises were shown to him by a doctor.

David Spiegelhalter, Professor of the Public Understanding of Risk, uses statistics to weigh everyday risks such as bacon sandwiches and cycling. The six-minute piece introduces micromorts as a way to compare the risk of dying.

A score-following video of Iannis Xenakis's 1950s orchestral piece Metastasis, showing his graphic, mathematically derived notation as the music plays. It is a landmark of post-war modernist composition.

John Bird and John Fortune satirize the investment banking mindset in a mock interview about the subprime mortgage crisis. The sketch lampoons structured credit products and the banks' reassurances shortly before the crash.

A clip of George Carlin riffing on advertising and the nonsense around it, taken from a longer piece tied to the Zeitgeist movie.

An excerpt from the documentary Mountain Talk on Appalachian English. Residents of Southern Appalachia talk about their dialect and give examples of its distinctive words.

Clayton Christensen explains disruptive innovation using the steel industry, showing how mini-mills beat incumbents from the low end. He argues disruption is not about stupid or bad management.

A sketch from the Norwegian NRK show Uti Var Hage poking fun at the Danish language and how hard it is to understand.

A 2006 television appearance in which Peter Schiff warns on Kudlow & Co about the housing bubble and an approaching US economic collapse.

Part one of Errol Morris's First Person interview with Murray Richman, a New York lawyer who defends mob figures. He talks about how he sees the law and his clients.

A 1957 Walt Disney film in which he explains and demonstrates the multiplane camera, the animation tool that gave 2D films depth. It is a short behind-the-scenes piece from Disney's archives.

An excerpt from Hal Abelson's opening SICP lecture introducing computer science and contrasting declarative and imperative knowledge. He argues that computer science is not really a science and is more like magic or engineering of ideas.

A short 2009 WIRED clip showing Kiva Systems robots moving inventory shelves in a warehouse serving online retailer Zappos. It shows how mobile robots bring goods to pickers instead of people walking the aisles.

A sketch from the British sitcom Yes, Prime Minister in which Jim Hacker and the chief scientific advisor discuss the logic of the nuclear deterrent.

A 2007 video of someone trying to write Perl code using Windows Vista's speech recognition, with hilariously bad results.

David Deutsch's TED talk arguing that humanity's survival depends on solving problems through knowledge growth. He frames people as improbable "chemical scum" capable of understanding distant quasars.

A 2007 side-by-side demo comparing Windows Vista's Aero interface with Ubuntu running Beryl/Compiz, showing effects such as the desktop cube and burning windows.

George Carlin's classic stand-up routine about 'stuff' and how much of life is spent accumulating and storing it, from Comic Relief 1986. It satirizes American consumerism and possessions.

Johnny Lee demonstrates head tracking with a Wii remote and a head-mounted pair of IR LEDs, so a screen acts like a window into a 3D scene as your head moves.

In a TED talk, behavioral economist Dan Ariely uses visual illusions and his research to show that people are less rational in their decisions than they think. He covers defaults, such as organ donation rates, and how choice framing steers decisions.

A George Carlin stand-up bit from Doin' It Again about soft language and euphemism, showing how softened words hide uncomfortable facts. It touches on topics like shell shock and aging.

A clip from George Carlin's 1990 special 'Doin' It Again' in which he describes how American English has been sterilized with euphemisms, using examples such as shell shock becoming PTSD.

A restored recording of Steve Jobs unveiling the original Macintosh in 1984, including the moment it is taken out of its bag and speaks. The upload comes from the team that rediscovered and restored the lost footage.

A clip in which Eben Moglen tells how he grew up when software was freer and how his path crossed Richard Stallman's. He describes how they came to work together to make software free again.

A short Adam Curtis clip on what he calls oh dearism, the habit of news reporting that presents events as a stream of sad, inexplicable happenings. He argues this leaves viewers passive and unable to imagine action.

An edited excerpt of Steve Jobs introducing Mac OS X at Macworld San Francisco in 2000. It covers the Aqua interface, Quartz graphics built on PDF, and the Classic, Carbon and Cocoa application environments.

A clip of the Yes Men posing as a Dow Chemical spokesman on the BBC and announcing compensation for victims of the Bhopal disaster, a hoax on live television.

Inventor Marc Griffin pitches his game Bulletball to the American Inventor judges. The clip shows a long, costly commitment to a game idea.

Julia Ecklar's recording of "The Eternal Flame," a filk song about God writing the universe in Lisp, written by Bob Kanefsky. It is a geek-humor song set to a familiar tune.

John Chowning's 1977 computer music piece Stria, composed with FM synthesis, which he discovered in 1967. It unifies timbre and scale structure around the Golden Mean.

Apple's 1987 Knowledge Navigator concept video imagines a conversational voice assistant, multi-touch tablet and video calling used by a professor. It was made years before the graphical web existed.

A 2007 video of someone trying to write Perl scripts using Windows Vista speech recognition, with comically bad results. The footage shows the recognizer repeatedly mangling commands.

A clip from Mr. Show season 3 in which characters insist that 24 is the highest number. It is a short absurdist sketch about counting.

A clip from the BBC Fun to Imagine series in which Richard Feynman is asked how magnets work and explains why 'why' questions depend on a shared framework of understanding and cannot always be answered in layman's terms.

Footage of Stefani Germanotta, later Lady Gaga, performing 'Captivated' and 'Electric Kiss' at NYU's Ultraviolet Live talent show in 2005-era college days. It shows her singing and playing before she became famous.

A demonstration of the 1982 Xerox Star user interface, including its desktop, icons, documents, networking and printing. The uploader argues that Apple's later Lisa and Mac interfaces evolved from these ideas rather than copying them.

An 8-minute clip of George Carlin's 1992 stand-up bit on the environment, arguing the planet will be fine and it is people who are in trouble. It leans on the contrast between Earth's 4.5 billion years and humanity's 200,000.

A compilation of Apple's 'I'm a Mac, I'm a PC' ad campaign from 2006 onward.

A short Supernova 2007 provocation in which Clay Shirky uses a 1300-year-old Japanese shrine, rebuilt periodically, as a metaphor for how networks change business and collective creativity.