dac

Tantacrul tells the story of Audacity, the widely used free audio editor, and announces his involvement in the project. It includes an interview with the original developers and a look at the software's usability.

A 29C3 panel with whistleblowers Jesselyn Radack, Thomas Drake and William Binney. They talk about what happens when exposing secret government power becomes a crime, and about surveillance abuses.

Dr. Russell Barkley lectures on the neuroanatomy of ADHD and how to treat it, linking executive function and working memory to the disorder. It is part 3 of a CADDAC series.

Christopher Domas presents research at DEF CON 26 showing a hidden alternate instruction set and undocumented hardware backdoor in some x86 processors, found on a third-party CPU. He uses it to ask how feasible wider hardware backdoors are.

Cory Doctorow's DEF CON 31 talk describes how platforms decay in a pattern he calls enshittification. He lays out a plan to stop it through antitrust, interoperability and fixing the law.

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.

Jonathan Blow's LambdaConf 2025 keynote demonstrates the Jai programming language and explains its design. It includes demos of metaprogramming and tools that visualize programs.

A short clip from Udacity's Web Development course in which Reddit co-founder Steve Huffman describes how Reddit grew early on. He explains seeding the site with content from fake accounts.

An AdaCore talk on the history, present and future of the Ada language, including remarks from Robert Dewar. The title and description say little else.

An AdaCore webinar in which NVIDIA engineers explain why and how they adopted Ada and SPARK for security-critical firmware. It covers the business case and the engineering experience of the transition.

Ben Eater finishes building a minimal VGA video card from logic circuits. He explains analog RGB signals, stores an image in an EEPROM and builds a simple digital-to-analog converter to display it.

A short clip of a Garry Kasparov press conference interrupted by a flying object in a prank. It is a brief, crude stunt video.

Tom Scott writes a more honest VPN ad, with the sponsor's name redacted, and explains why the typical claims in VPN advertising are misleading. He notes the sponsor was not happy about it.

Veritasium explores what general relativity says about black holes, white holes and wormholes, with help from physicists Geraint Lewis and Juan Maldacena. It introduces Penrose diagrams and the idea that other universes may be implied.

A TiVo-captured clip of the notoriously repetitive 2006 Head On headache remedy commercial, with its 'apply directly to the forehead' jingle.

Technology Connections complains about the harsh, overly blue color of modern LED Christmas lights and tries more fixes for them. It follows earlier videos by the same creator on holiday lighting.