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Primitive Technology shows building a cord drill from scratch and then upgrading it to a pump drill, using only primitive materials like a stone flywheel and cord.

A Primitive Technology episode in which the creator builds a bow-drill-driven bark fan to blow air into a fire, using only natural materials. It shows the progression from fanning a fire by hand to a rotary forge blower.

The Primitive Technology channel shows the making of a stone axe (celt) using only primitive tools and materials, from shaping and polishing a basalt head to making the wooden handle and hafting it.

The Primitive Technology channel shows the construction of a tiled roof hut in the bush using only primitive tools and materials made in earlier videos. It includes tiles, a kiln, clay walls and underfloor heating.

Not Just Bikes explains how North American speed limits are set and why posted limits matter far less than street design. It argues that drivers follow the road's cues, so safe speeds have to be built into the street.

A video debunking popular primitive-building YouTube channels, arguing that their digging, concrete and construction are staged. It uses the Primitive Technology channel as a baseline for what is plausible in a natural setting.

A short Harvard animation narrated by Professor Rob Lue introducing mitochondria as the cell's powerhouses and how cells turn food and oxygen into energy.

In Top Gear's second part, racing driver Sabine Schmitz tries to lap the Nurburgring in a Ford Transit van in under ten minutes. She finishes just over the mark.

Linus Tech Tips backs up their petabyte server to Google's unlimited G Suite Drive plan and runs into the daily upload cap. It shows how far the 'unlimited' offer can be pushed.

Alexander Nix of Cambridge Analytica presents at the 2016 Concordia Summit on using big data, psychographic profiling and behavioral microtargeting in elections.

Dr. Terry Wahls tells how she used diet to manage her multiple sclerosis and get out of a wheelchair, drawing on mitochondrial biology. TED flagged the talk as health advice based on personal narrative.

Kurzgesagt explains why, even with science-fiction technology, most of the universe is permanently out of reach because of cosmic expansion and finite resources.

The 8-Bit Guy reviews the Color Maximite 2, a modern ARM-based computer that boots straight into BASIC. He shows what it can do as a retro-style machine.

Stuff Made Here designs and builds an "unpickable" lock, then calls in a locksmith to see if it can be defeated. It covers the mechanical design effort and the attempt to pick it.

Euclideon's 2011 technology preview of Unlimited Detail, a rendering approach claiming unlimited geometric detail in real time via point-cloud style data. The company promised more to come while keeping most work secret.

A promotional commercial for Microsoft Songsmith, software that generates backing music from a vocal recording. The ad became widely known for its awkwardness.

A segment from the animated film The Twelve Tasks of Asterix, in which Asterix must get Permit A 38 from a maze-like building run by unhelpful bureaucrats. He wins by asking for a nonexistent permit.

A pieced-together clip of the Agent Smith interrogation scene from The Matrix (1999), where Smith delivers his monologue about humanity.

A six-minute sketch from That Mitchell and Webb Look in which a speaker argues you should never drink more than slightly less than two drinks, the mildly intoxicated sweet spot before drunken madness.

Y Combinator partners Michael Seibel and Dalton Caldwell discuss how startups shifted from attracting outsiders to status- and money-seeking conformists. They give advice for nonconformist founders.

SciPy 2015 talk by Nathaniel Smith and Stefan van der Walt on choosing a new default colormap for Matplotlib. It covers why Jet misleads, how perceptual color spaces work, and how viridis was designed.

Seven-minute footage of Fred Rogers testifying before a US Senate subcommittee in 1969 to defend federal funding for the new Corporation for Public Broadcasting. A skeptical Senator Pastore starts out abrasive and is won over during Rogers' brief, calm testimony.

A short TEDx talk by Joe Smith teaching how to dry your hands with a single paper towel. It shows a simple technique for cutting waste.

Testimony by Peter McCullough, MD, to the Texas Senate Health and Human Services Committee on March 10, 2021, about COVID-19 outpatient treatment. It was posted by the AAPS.

A 12-minute demo of the Alternate Reality Kit, built by Randall Smith at Xerox PARC in 1986. It is a simulated physical world in which users manipulate objects and program by direct interaction.

A Ray Summit 2022 keynote fireside chat between OpenAI's Greg Brockman and Anyscale's Robert Nishihara. They discuss how OpenAI's training infrastructure evolved and its use of Ray.

A Washington Post clip of President Trump and NATO Secretary General Jens Stoltenberg in a tense exchange at the July 2018 NATO summit, where Trump criticized Germany's reliance on Russian energy.

Adam Ragusea explores why Hershey's chocolate tastes the way it does to many non-Americans, tracing it to butyric acid and Hershey's history, and why familiarity makes Americans love it. He compares it with British Cadbury.

A short Portuguese-language excerpt of Gerald Sussman's 2016 NYC Lisp Meetup talk explaining why MIT replaced the Scheme-based 6.001 (SICP) course with Python courses. The full talk is linked in the description.

MIT researchers show that sound can be recovered from silent video by analyzing tiny vibrations in objects such as a potato chip bag. It works even with consumer cameras by using rolling shutter.

A creator runs an informal live test of whether Google or Facebook listen through the microphone to target ads, using Chrome on Windows 10. The description admits the methodology is flawed, including that live streaming itself records the microphone.

Mitchell Hashimoto walks through his setup for running a NixOS virtual machine on a Mac as his development environment, with a config repo on GitHub.

David MacKay's TEDxWarwick talk uses basic arithmetic to show how much land and energy renewables would need to power a country like the UK. It explains the limits of sustainable options and why they should still be pursued.

A roughly 14-minute interview with OpenBSD founder Theo de Raadt at ruBSD 2013. He talks about making painful changes, getting real feedback, mitigation techniques compared to other OSs, and virtualization.

An Extra Credits episode on China's Sesame Credit, which gamifies obedient citizenship through a social score. It covers how the system rewards conformity and pressures people through their friends' behavior.

Eli Pariser's TED talk argues that personalized web services trap users in filter bubbles, limiting exposure to challenging information. He says this is bad for individuals and for democracy.

Eben Moglen's 2011 Personal Democracy Forum talk on the loss of anonymity and privacy on the internet. He proposes building an alternative net of personal servers, the idea behind FreedomBox.

A short explainer on the physiological differences between fasting and simply eating less. It covers ketosis, ghrelin and hunger waves, and the hormonal effects of fasting.

A short Harvard Online animated lesson on how the mitochondrial electron transport chain works. It shows proton pumping and the machinery that drives ATP synthesis.

ReasonTV tells the story of Bob Tillman, who spent nearly five years and $1.4 million trying to convert his San Francisco laundromat into apartments. It walks through the permitting, appeals and neighborhood opposition he faced.