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A condensed film of Dick Proenneke's footage of building a cabin and living alone in the Alaskan wilderness, using hand tools and local materials. It draws on the 8mm films he shot himself.

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.

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.

A 45-minute Flex Your Rights documentary on how to deal with police in three situations: traffic stops, encounters at home, and on the street. It presents practical advice on asserting constitutional rights and refusing searches.

A 30-minute condensed version of the documentary I.O.U.S.A., which examines the growing US national debt and its consequences.

Nate Harrison's 2004 video history of the Amen Break, a six-second drum sample from a 1969 b-side that became the basis of hip-hop sampling, jungle and drum and bass. It is also a meditation on cultural ownership and creativity.

Code Rush is a 2000 PBS documentary following Netscape engineers during the year they open-sourced the browser as Mozilla. It shows the pressure and long hours of work in Silicon Valley at the height of the dot-com era.

A 52-minute short version of the documentary The End of Suburbia, about peak oil and the end of cheap energy. It argues that American suburbs depend on cheap oil and may become the slums of the future.

The first part of a four-part Channel 4 (UK) documentary series presented by Howard Goodall, this episode covers melody and why tunes affect us so deeply. It explains how melody works in Western music with historical background and music theory.

Part one of a four-part upload of a BBC Horizon documentary featuring Richard Feynman, in which he talks about physics and looking at the world from another point of view.

A clip from BBC's Last Chance to See in which Stephen Fry and Mark Carwardine meet Sirocco, a kakapo, who famously tries to mate with Carwardine's head. The kakapo is a critically endangered flightless New Zealand parrot.

A three-minute clip from BBC's Planet Earth narrated by David Attenborough about Cordyceps, the fungus that infects insects and takes over their behavior. It shows an infected ant and its demise.

Short BBC Earth clip from Life of Mammals in which David Attenborough shows orangutans imitating human behaviors like washing clothes with soap and using tools.