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A SciShow episode in which Hank Green introduces five of the most dangerous chemicals, from lethal toxins to substances that explode on contact. It is an entertaining overview of extreme chemical hazards.

Asianometry explains why India, a chip design powerhouse, cannot fabricate chips, tracing the 1980s government attempt to build a national semiconductor champion and how it collapsed. It includes the sabotage at the SCL fab.

Asianometry traces the 30-year rise and peak of Japan's semiconductor industry from the 1950s to the 1980s, covering how a postwar country gained competence in an emerging technology.

A short 3Blue1Brown primer on exponential and logistic growth, using early COVID-19 case data to show how epidemics grow and eventually level off. It explains why small changes in growth rate make enormous differences in outcomes.

A George Carlin stand-up bit on euphemisms, tracing how language gets softened, such as shell shock becoming PTSD, until it loses its emotional force.

A George Carlin routine on euphemisms and political correctness, tracing how shell shock became PTSD. The uploader adds context about euphemism in political language.

Excerpts from W. Edwards Deming's Red Bead Experiment, where workers draw beads from a bowl and are judged on red ones that are largely down to chance. It shows how system variation, not individual effort, drives results.

Documentary filmmaker Cassie Jaye explains how making The Red Pill led her, a feminist, to reevaluate her assumptions about the Men's Rights movement. She argues for listening to people you think of as the enemy.

A re-upload of a video breaking down Eminem's rhyme schemes, showing multi-syllable and internal rhymes in songs such as Lose Yourself. It aims to show why he is considered a standout lyricist.

Illumina's 3D animation of its sequencing-by-synthesis workflow, from sample preparation and cluster generation to sequencing on a flow cell and data analysis.

Part 3 of Kirby Ferguson's Everything is a Remix series, using Apple and the iPhone to show how invention builds on copying and combining prior ideas. It argues that creativity and innovation are inseparable from copying.

Demis Hassabis of DeepMind speaks at Google Zeitgeist, saying human-level AI is decades away but the debate should start now. He covers DeepMind's focus on game-playing agents.

Footage of the 1985 world premiere of the Amiga 1000 at Lincoln Center. It shows demos such as multitasking and the bouncing ball, and Andy Warhol painting Debbie Harry live on the machine.

David Deutsch's TED talk arguing that humanity's survival depends on solving problems through knowledge growth. He frames people as improbable "chemical scum" capable of understanding distant quasars.

An excerpt of a C-SPAN interview in which Thomas Sowell argues that preferential admission policies produce mismatch, dropouts and resentment.

Fully Charged visits Janus Trucks in New South Wales, Australia, which converts diesel trucks to electric with swappable battery packs. The truck carries 620 kWh of batteries and a 540 kW drive.

John Oliver's Last Week Tonight segment on PFAS, the 'forever chemicals' linked to health problems. It covers their widespread use in products like nonstick coatings and repellent fabrics and the limits of regulation.

Jeri Ellsworth shows step by step how to make an NMOS transistor at home using a kiln, rust remover, spin-on dopant, eBay wafers and vinyl stickers.

Asianometry explains that the worst of the 2021-22 chip shortage sits in trailing-edge semiconductors, not the leading-edge chips usually covered. It covers why those older-node fabs are so hard to expand and fix.

Bill Gates's 2015 TED talk, given after the 2014 Ebola outbreak, argues the world is unprepared for the next fast-spreading epidemic. He calls for scenario planning, vaccine research, and trained health workers, in the way countries prepare for war.

Engineering Explained examines new research suggesting corn ethanol in US gasoline may emit as much or more carbon than gasoline. It covers the Renewable Fuel Standard and why ethanol was assumed to be a green fuel.

Engineering Explained compares the lifecycle emissions of keeping an old car with those of buying a new, more efficient one. It weighs manufacturing emissions against emissions from driving, and covers gas versus electric cars.

Engineering Explained compares the lifetime CO2 emissions of a Toyota RAV4 Prime plug-in hybrid with a Tesla Model Y, looking at break-even mileage and whether electric cars are worse for the environment.

Sam Zeloof shows the upgraded second iteration of his homemade silicon integrated circuit fabrication process, producing chips with around a thousand transistors in his garage. It is a short overview of what the home fab can now do.

Periodic Videos visits a fluorine expert to show how reactive the element is in action. It also includes a discussion of fluoride and tooth enamel.

ACS Reactions investigates why Mexican Coke, supposedly cane sugar sweetened, tested as having glucose and fructose, explaining that sucrose breaks down in acidic soda.

A Capella Science parody of Ed Sheeran's Shape of You, rewritten about molecular bonding and orbitals and sung a cappella.

The Explosions&Fire channel taste-tests the chloride salts of the alkali metals (lithium through cesium), plus some alkaline earth metals and ammonium. The presenter describes the flavors, and the results are more pleasant than expected.

Steve Mould shows that LEDs and solar panels are both diodes made from semiconductors, so a solar panel can emit light and an LED can generate electricity. He demonstrates a small solar panel lighting up.

Engineering Explained works through whether electric cars are really worse for the environment than gasoline cars. It covers battery production emissions, the electricity mix used to charge, and how long an EV takes to break even on lifetime emissions.

Seeker's Focal Point short documentary on ASML's extreme ultraviolet lithography machines, which make the most advanced chips. It shows how plasma-generated 13.5 nm light is used to push Moore's Law forward.

CNBC gets a tour of ASML's cleanrooms in the Netherlands to see how its roughly $200 million EUV lithography machines are built. It covers exploding molten tin, ultra-flat optics and why only one company can make these systems.

Asianometry explains why Russia cannot replace TSMC after sanctions halted chip shipments. It looks at Russian chip designers such as Baikal, MCST and Yadro, and at Russia's lagging domestic manufacturing capacity.

A US Chemical Safety Board video explaining how sugar dust explosions at the Imperial Sugar plant in Georgia killed fourteen workers in 2008.

Cody's Lab collects a sample of dust from the side of a highway and refines it to recover platinum-group metals deposited by catalytic converters. The video walks through the chemistry of separating and assaying the precious metals.

An RSA Animate summary of Iain McGilchrist's lecture on the divided brain, arguing the brain's two hemispheres attend to the world differently and that this has shaped culture and society.

Kurzgesagt examines who is responsible for climate change, comparing historical, current and per-capita emissions by country. It argues that individual footprints are a distraction from larger responsibility.

Asianometry explains the EUV light source inside ASML's lithography machines, where lasers hit falling tin droplets twice to produce 13.5 nm light. It walks through the engineering of the droplet generator, the pre-pulse and main laser, and the plasma that results.

Doug Zongker's deadpan conference presentation of his famously chicken-filled paper, given at the 2007 AAAS humor session. It satirizes academic talks while showing the pitfalls of bad presentation.

Steve Mould explains homochirality: why biological molecules like sugars and amino acids come in only one handedness. He covers ideas about how this asymmetry might have arisen, touching on meteorite samples and RNA.