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Dr. Russell Barkley gives a nearly three-hour lecture of essential ideas about ADHD for parents, covering what ADHD is, its effects on executive function, motivation and emotion, and how it affects children.

A short excerpt from Dr Russell Barkley's 2012 Burnett Lecture on ADHD, focused on treatment. He argues ADHD is a disorder of executive function and self-regulation, and that environments should be designed to compensate.

The first clip from Russell Barkley's 30 Essential Ideas about ADHD series, introducing ADHD as a chronic developmental disability. It is part of a lecture series on the disorder by a leading ADHD researcher.

The first lesson of MangoJelly's FreeCAD 0.20 beginner course, covering setup, preferences and navigation. The series teaches fundamentals through complete workflows such as sketching, Part Design and STL export.

The introduction to MangoJelly's beginner course for FreeCAD 1.0. The course teaches solid modeling with the Part Design, Sketcher and Part workbenches.

Dr. Russell Barkley explains how different ADHD medications work and how they differ from one another, in a short clip.

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.

Apple's 2002 television ad for the iMac G4 "Lamp", showing the adjustable-arm design in a playful way.

Tested gets hands-on with four Meta Reality Labs research VR headset prototypes testing resolution, brightness, focus shifting and form factor, plus an interview with Mark Zuckerberg on display technology.

An excerpt from Russell Barkley's lecture on ADHD, focusing on inhibition, impulsivity and emotional regulation. It explains ADHD as a problem of response inhibition and emotional impulsivity.

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.

A look at AT&T's 1993 You Will ad campaign, which showed technologies such as video calls and telemedicine that were then under development. It explains the story behind ads that anticipated much of today's technology.

Not Just Bikes introduces the "stroad", a street-road hybrid common in the US and Canada that fails at both jobs. He contrasts it with Dutch design, where each road has a single purpose, and covers cost, danger and ugliness.

Microsoft's Brian Beckman gives an hour-long, whiteboard-style walk through monads, building from function composition and monoids using school-level math. It is aimed at practicing programmers rather than category theorists.

Bryan Cantrill's Monktoberfest 2017 talk on leadership and organizational principles, ranging from the Gettysburg Address to Uber and Amazon. He argues for the difference between principles and values and criticizes vague corporate principles.

Douglas Adams gives a talk at UCSB, recorded shortly before his death, about the odd lives of animals and what they suggest about humanity's future. It draws on his Last Chance to See work and is funny and wide-ranging.

A long Tim Ferriss podcast interview with physician Gabor Mate on trauma, addiction, depression, ADHD and ayahuasca. Mate explains how childhood stress and emotional pain underlie many addictions and illnesses.

Simon Sinek's TED talk presents the 'golden circle' model: great leaders and companies inspire action by starting with why they do something, before how or what. He illustrates it with Apple, Martin Luther King, the Wright brothers and, as a counterexample, TiVo.

Bill Hammack of engineerguy introduces his series on Michael Faraday's lectures on The Chemical History of a Candle. He describes the free companion book and the commentary and caption features that help modern viewers.

A video essay from the Alt-Right Playbook series that explains how extremist movements draw ordinary people in, using deniable rhetoric, bad-faith games, and gradual escalation. It draws on books about the alt-right, male radicalization, and cult-style brainwashing.

Johann Hari's TED talk arguing that addiction is driven largely by disconnection and environment rather than chemical hooks alone. He draws on his personal experience with addicted relatives and on research and policy examples from around the world.

Climber Chris Warner talks at Google about his book on high altitude leadership and the 2007 K2 expedition, where eighteen climbers summited and two died.

A short street interview from Invisible People with Keith, a homeless man in Los Angeles who lost his housing-industry job in the crash and moved from painkillers to heroin because it was cheaper. He talks candidly about the grip of addiction.

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.

Isaac Arthur surveys the popular proposed solutions to the Fermi Paradox in a 71-minute compendium. He weighs the strengths and weaknesses of each argument.

An episode of FunFunFunction explaining monads in JavaScript as functors that also implement flatMap. It builds on the preceding functor episode and works through code examples.

Simon Sinek's 99U talk on why leaders earn trust by putting their team's safety ahead of their own, drawing on biology and anthropology. It distills the ideas of his book Leaders Eat Last into about 46 minutes.

Technology Connections explains why American cars all had the same standardized sealed-beam headlights until 1957. It covers the regulations behind the design and the effect on night visibility.

Filmmaker Max Joseph's 35-minute video essay asks whether you have to be a jerk to be a successful leader. It draws on Adam Grant's givers and takers, Robert Greene and famous demanding directors.

Technology Connections explains why the superheterodyne radio has its name and how mixing frequencies lets it tune stations well. It walks through the underlying wave phenomena and algebra and why the design solved a hard tuning problem.

A short film by Max Joseph about his anxiety in bookstores and how to read more books amid constant streaming, social media and news. He looks for ways to rebalance his content diet in favor of reading.

PBS Space Time explains Stephen Hawking's prediction of Hawking radiation and how black holes can emit radiation and slowly evaporate. It goes beyond the common particle-antiparticle analogy.

Tom Scott explains why Ipley Cross in England's New Forest was one of Britain's most dangerous junctions. The angled crossroads lets a car's A-pillar hide approaching traffic and cyclists because there is no relative motion in the driver's view.

Andrew Huberman discusses ADHD, its biology and myths, behavioral and pharmacologic treatments, and training protocols to improve focus for people with or without ADHD. It covers dopamine and the coordination of brain networks.

The first part of Freya Holmer's three-part, nearly four-hour lecture on shader coding for game devs in Unity. It covers what shaders are, vertex and fragment shaders, interpolators, data types, blending and textures.

CGP Grey walks through the odd history and quirks of the US-Canada border, including how it was surveyed and its irregularities such as exclaves.

Douglas Crockford's Google Tech Talk explains monads without category theory or Haskell, implementing them in JavaScript and tying them to Ajax and promises. He also touches on odd asides such as coloring code by scope.

A five-minute CBC Radio WireTap farewell video in which people of all ages offer words of wisdom to younger people. The advice is short and funny, and keeps coming back to the point that nobody really knows what they are doing.

A John Oliver Last Week Tonight segment on native advertising, showing how ads are disguised as editorial content in news media, including BuzzFeed and major newspapers.

The 1985 Channel 4 TV film 'Max Headroom: 20 Minutes into the Future', the origin of the computer-generated TV host Max Headroom, with a soundtrack by Midge Ure and Chris Cross.