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A short clip of comedian David Mitchell on The Last Leg discussing tax avoidance versus tax evasion and why taxes matter.

Michael Steil and Christian Hessmann's 34C3 talk explaining the Apollo Guidance Computer end to end: hardware design, operating system, and mission software.

The first episode of CuriousMarc's series restoring a real Apollo Guidance Computer, led by AGC expert Mike Stewart. They set up a makeshift lab in a Houston hotel room to open up a rare machine owned by a private collector.

Brian Troutwine's Code Mesh 2015 talk on the Apollo Guidance Computer. It covers the AGC's design, core rope memory, its interrupt and software behavior, and the pioneering engineering effort behind it.

Hungarian folk dancers from Sapientia University act out the quicksort algorithm step by step, with music. It is part of the AlgoRythmics series of sorting algorithms performed as dance.

Robert Moss's JuliaCon 2015 talk describes using Julia as a specification language for ACAS X, the next-generation airborne collision avoidance system that succeeds TCAS.

A short BBC Planet Earth clip from the Pole to Pole episode showing the courtship displays of birds of paradise.

The Pinkfong Baby Shark Dance children's song video, one of the most viewed videos on YouTube.

Steven Wittens' JSConf US 2013 talk on drawing with WebGL, using animated visuals to walk through vectors, matrices and the rendering pipeline. Despite the title, it works as a visual primer on the linear algebra behind 3D graphics.

A short Guardian clip of historian Rutger Bregman at Davos telling attendees that the real issue is tax avoidance, not philanthropy schemes.

Vox's Joe Posner, with help from 99% Invisible, explains why bad doors are everywhere. It covers Don Norman's long-running complaint about doors and the idea that good design should not need instructions.

A short clip of the famous Hitchhiker-style circular narration of a missile guidance system explaining how it knows where it is by knowing where it isn't. It is a deadpan bit of technical-sounding absurdity about subtraction and navigation.

A short hip-hop remix of the well-known 'The missile knows where it is' monologue about missile guidance logic. It is a meme-style piece taken from 4chan.

A Bell Labs film in which Dr. J.N. Shive uses a mechanical wave machine to demonstrate reflection, standing waves, resonance and impedance matching. He includes some equations but relies mostly on real-world examples a layperson can follow.

Rick Hartley's AltiumLive keynote on differential pairs in PC boards. He argues the rules from cables and twisted pairs do not carry over, and covers which pair geometry gives the best impedance control, the right spacing, routing practice and how much skew is acceptable.

Declassified HUD footage of an F-16 whose unconscious pilot is saved by the Automatic Ground Collision Avoidance System. It shows the aircraft pulling out of a dive on its own.

The restored 4k official music video for Fatboy Slim's Weapon of Choice featuring Bootsy Collins, directed by Spike Jonze, with Christopher Walken dancing around a hotel lobby. It won multiple MTV awards and a Grammy.

A one-minute Volvo Trucks demo of the Collision Warning with Emergency Brake system on a fully loaded 40-ton tractor-trailer, avoiding a rear-end collision on a test track.

A Fifth Gear segment in which Tiff Needell tests autonomous emergency braking systems in the Mercedes S Class, Volvo V40 and VW up!. The cars are driven toward an inflatable dummy car to see how each system performs.

A 95-minute recorded debate at the ARITH23 computer arithmetic conference between John Gustafson, proponent of unums/posits, and William Kahan, architect of IEEE 754 floating point. They argue the merits of the new number formats versus conventional floats and interval arithmetic.

A short film about the Dervaes family, who grow over 6,000 pounds of food a year on a tenth of an acre near downtown Los Angeles. They grow more than 400 plant species, keep chickens and ducks, and get most of their food from the plot.

Official trailer for Eugene Jarecki's 2012 documentary The House I Live In, an investigative look at America's war on drugs and its effect on the criminal justice system. It won the Grand Jury Prize at Sundance.

America's Test Kitchen tests eight carbon-steel skillets to find the best one, asking whether a single pan can replace stainless, cast iron and nonstick. It names a winner and covers how the pans perform.

Derek Sivers annotates a short clip of a lone dancer at a festival, showing how a first follower turns a ridiculous act into a movement. He draws out lessons about leadership and making it easy to follow.

A 2006 Saturday Night Live fake infomercial with Steve Martin and Amy Poehler selling the sure-fire way out of debt: don't buy stuff.

Herb Sutter revisits basic C++ questions in light of C++11 and C++14: how to declare and initialize variables, pass values to functions, write loops, and use smart pointers. It covers auto, rvalue references, range-for, uniform initialization, lambdas, unique_ptr and shared_ptr.

MORE is Mark Osborne's Oscar-nominated stop-motion short about a joyless inventor in a drab, conformist society who yearns for his younger days. It won Best Short Film at Sundance in 1999.

An animated National Film Board of Canada short about a young woman who picks a log driver as her partner because his work makes him a great dancer. It is set to Wade Hemsworth's folk song sung by Kate and Anna McGarrigle.

A solo performance of Steve Reich's Piano Phase, with one pianist playing both parts, recorded in 2004 with Reich in attendance. It is a 15-minute minimalist phasing piece.

A Key & Peele sketch in which an inner-city substitute teacher, Mr. Garvey, keeps mangling the names of his middle-class students during attendance.

A short clip of a Volvo C60 automatic braking demonstration in which the car fails to stop. It was widely circulated as a press-demo embarrassment.

A two-minute Insider Tech clip on DeepMind's simulated agents that learned to walk, run, jump and climb without guidance, with the goofy resulting gaits.