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How H&M’s Recycling Machines Make New Clothes From Used Apparel | World Wide Waste8:53

How H&M’s Recycling Machines Make New Clothes From Used Apparel | World Wide Waste

3.4M views • 5 years ago
Business Insider
A Business Insider World Wide Waste episode on H&M's garment recycling machines, which turn used clothing into new apparel. It asks whether a fast fashion company can solve the waste problem it helped create.
Cloaking8:47

Cloaking

238K views • 15 years ago
Google Search Central
Matt Cutts of Google explains what cloaking is: serving different content to search engine crawlers than to users. He covers why it violates Google's webmaster guidelines.
Is Most Published Research Wrong?12:22

Is Most Published Research Wrong?

6.2M views • 10 years ago
Veritasium
Veritasium explains why a large share of published research findings may be false, covering p-values, p-hacking, publication bias and low replication rates. It draws on John Ioannidis's well-known paper and describes reforms such as preregistration.
Xanadu Basics 1a - VISIBLE CONNECTION12:23

Xanadu Basics 1a - VISIBLE CONNECTION

20K views • 8 years ago
TheTedNelson
Ted Nelson explains the original Xanadu hypertext idea of visible connection, the notion that links between documents should be shown and preserved. He argues that the Web and current document standards lost this concept.
Why ChatGPT Can't Draw a Full Glass of Wine20:55

Why ChatGPT Can't Draw a Full Glass of Wine

6.3M views • 1 year ago
Alex O'Connor
Alex O'Connor shows that ChatGPT cannot draw a wine glass filled to the brim, and ties the failure to David Hume's missing shade of blue. It asks what the failure says about how image models learn.
International Diversification11:00

International Diversification

221K views • 3 years ago
Ben Felix
Ben Felix rebuts common arguments for holding only US stocks, such as past outperformance and international revenue exposure. He supports the case for international diversification with cited academic research.
Alexander Pope Wrote a 35-Page Takedown of a Historian21:32

Alexander Pope Wrote a 35-Page Takedown of a Historian

10.3M views • 5 years ago
CGP Grey
CGP Grey tells the story of Alexander Pope's long takedown of a historian, Thomas Hearne, framed around the quirks of library books and archival research. It is a funny, digressive video essay about literary feuds and tracking down original sources.
How to Cure Aging – During Your Lifetime?7:21

How to Cure Aging – During Your Lifetime?

8M views • 9 years ago
Kurzgesagt – In a Nutshell
A Kurzgesagt animated explainer on whether aging could be cured within our lifetimes, made with Lifespan.io and the LEAF foundation. It introduces the idea of treating aging as a medical problem.
Khan Academy and the Effectiveness of Science Videos8:04

Khan Academy and the Effectiveness of Science Videos

1.7M views • 15 years ago
Veritasium
Veritasium examines research suggesting science explainer videos like Khan Academy's make students feel they understand while tests show they have not learned, because misconceptions go unaddressed. It suggests how to partly fix this.
The British Museum is full of stolen artifacts9:33

The British Museum is full of stolen artifacts

6.7M views • 6 years ago
Vox
A Vox explainer on how many of the British Museum's treasures were taken during British imperial rule, focusing on the Benin Bronzes and requests for their return.
Why PlayStation 1 Graphics Warped and Wobbled so much | MVG12:36

Why PlayStation 1 Graphics Warped and Wobbled so much | MVG

2.3M views • 6 years ago
Modern Vintage Gamer
Modern Vintage Gamer explains why PlayStation 1 graphics warped and jittered, comparing it with the Nintendo 64. The causes are affine texture mapping and the lack of sub-pixel vertex precision.
Resveratrol – The Unfortunate (& Scandalous) Story18:39

Resveratrol – The Unfortunate (& Scandalous) Story

208K views • 4 years ago
Dr Brad Stanfield
Dr Brad Stanfield recounts the research history and scandal around resveratrol, the supposed anti-aging supplement, including problems with the original studies.
Parking Laws Are Strangling America | Climate Town31:39

Parking Laws Are Strangling America | Climate Town

1.9M views • 3 years ago
Climate Town
Climate Town traces the history of American parking minimums, how they came from shaky research and ITE guides, and how they shape zoning, cities and housing costs. It is a long, comedic video essay.
Bed Bugs- What You've Been Told is Totally False23:47

Bed Bugs- What You've Been Told is Totally False

83.8M views • 3 years ago
Mark Rober
Mark Rober digs into bed bugs, testing popular beliefs about where they come from and how to get rid of them. It mixes entertaining experiments with research-based advice on what works and what does not.
Why Western Designs Fail in Developing Countries27:36

Why Western Designs Fail in Developing Countries

1.8M views • 2 years ago
Design Theory
A design essay on why products designed in Western contexts often fail when deployed in developing countries. It covers expert blindness and cultural assumptions, with examples such as malaria nets and the One Laptop Per Child project.
Ch(e)at GPT? - Computerphile13:52

Ch(e)at GPT? - Computerphile

617K views • 3 years ago
Computerphile
Computerphile video in which Mike Pound explains a University of Maryland paper on watermarking LLM output. The method biases token choices so generated text can later be detected statistically.
But how do AI images and videos actually work? | Guest video by Welch Labs37:20

But how do AI images and videos actually work? | Guest video by Welch Labs

2.2M views • 1 year ago
3Blue1Brown
A guest video by Welch Labs on 3Blue1Brown explaining how text-to-image and video models work. It covers CLIP, shared embedding spaces, diffusion models (DDPM, DDIM), conditioning, guidance and negative prompts.
Inadvertant intravenous injections21:03

Inadvertant intravenous injections

507K views • 5 years ago
Dr. John Campbell
Dr. John Campbell reviews a mouse study on accidental intravenous injection of an mRNA COVID-19 vaccine and its potential to cause myopericarditis. He walks through the methods and findings and discusses the aspiration technique.
How to Stop a Riot10:18

How to Stop a Riot

5.2M views • 9 years ago
Wendover Productions
Wendover Productions explains counterintuitive riot control techniques based on research, showing that effective tactics tend to avoid violence.
Your Home Can Survive a Wildfire13:20

Your Home Can Survive a Wildfire

164K views • 11 years ago
National Fire Protection Association
NFPA video in which wildfire researcher Jack Cohen explains that embers (firebrands), not the flame front, are the main cause of homes igniting in wildfires. He shows how landscaping and removing debris around the home reduce risk.
The Beauty of Bézier Curves24:26

The Beauty of Bézier Curves

2.2M views • 5 years ago
Freya Holmér
Freya Holmer explains how Bezier curves work, from the helper-line construction to their uses in animation, text rendering and shapes. It uses visuals from her Unity Shapes plugin and was a SoME1 contest winner.
Brown; color is weird21:15

Brown; color is weird

5.3M views • 6 years ago
Technology Connections
Technology Connections explains why brown is not a spectral color but a context-dependent perception, essentially dark orange seen against brighter surroundings.
The Truth about American Cities - Part 1 - Strong Towns [ST01]5:32

The Truth about American Cities - Part 1 - Strong Towns [ST01]

858K views • 6 years ago
Not Just Bikes
The first video in Not Just Bikes' Strong Towns series explains the financial instability of North American cities, based on Strong Towns research. It argues that low-density suburban growth costs more to maintain than it brings in.
The Epidemic of Fake Disease20:58

The Epidemic of Fake Disease

2.4M views • 6 years ago
Medlife Crisis
A Medlife Crisis video by cardiologist Rohin Francis on overdiagnosis and over-screening. It explains how detecting more disease does not necessarily mean saving more lives, and covers harms such as unnecessary treatment.
30 Weird Chess Algorithms: Elo World42:36

30 Weird Chess Algorithms: Elo World

965K views • 7 years ago
suckerpinch
Tom Scott-style absurdist tour by Tom7 of SIGBOVIK chess projects: a tournament of 30 weird chess algorithms used to rate a color- and piece-blind chess program. Topics include mirrors, arithmetic encoding, perverted game tree search and a diluted Stockfish.
The Expert Myth17:59

The Expert Myth

16M views • 4 years ago
Veritasium
Veritasium examines which experts have real expertise, drawing on chess research and work by Klein and Kahneman. It explains that expertise comes from pattern recognition built through deliberate practice in valid, feedback-rich environments.
Akira Kurosawa - Composing Movement8:25

Akira Kurosawa - Composing Movement

10.8M views • 11 years ago
Every Frame a Painting
An Every Frame a Painting video essay on how Akira Kurosawa used movement, weather and composition to tell stories. It draws on clips and interviews with other filmmakers.
IBM Selectric Typewriter & its digital to analogue converter3:05

IBM Selectric Typewriter & its digital to analogue converter

1.1M views • 16 years ago
engineerguy
Bill Hammack of engineerguy uses slow motion video to show how the IBM Selectric typewriter works. He focuses on its fully mechanical digital-to-analog converter, which turns key presses into rotation of the type ball.
Characters, Symbols and the Unicode Miracle - Computerphile9:37

Characters, Symbols and the Unicode Miracle - Computerphile

2.1M views • 13 years ago
Computerphile
Tom Scott explains for Computerphile how Unicode and UTF-8 grew out of messy older character encodings to become the web's standard. It covers why the design works and how it handles worldwide text.
Worst Nuclear Accidents in History9:13

Worst Nuclear Accidents in History

10.9M views • 5 years ago
Kurzgesagt – In a Nutshell
Kurzgesagt compares how many people nuclear accidents have killed against other energy sources. It walks through the worst nuclear accidents and puts their death tolls in context per unit of energy.
Is SpaceX's Raptor engine the king of rocket engines?49:02

Is SpaceX's Raptor engine the king of rocket engines?

5.4M views • 7 years ago
Everyday Astronaut
Everyday Astronaut explains the basic physics of rocket engines, the main engine cycles and fuel types, then compares SpaceX's methane-fueled full-flow staged combustion Raptor to other engines. It runs nearly 50 minutes with chapter markers.
Attention in transformers, step-by-step | Deep Learning Chapter 626:10

Attention in transformers, step-by-step | Deep Learning Chapter 6

4.8M views • 2 years ago
3Blue1Brown
3Blue1Brown's visual walkthrough of the attention mechanism inside transformers, covering self-attention, multiple heads and cross-attention. It is chapter 6 of his deep learning series.
Why Age? Should We End Aging Forever?6:48

Why Age? Should We End Aging Forever?

9M views • 9 years ago
Kurzgesagt – In a Nutshell
Kurzgesagt's short animated video asks whether humanity should try to end aging, and argues the case for curing age-related disease. It is part one of a pair, with a second part by CGP Grey.
RSA ANIMATE: Crises of Capitalism11:11

RSA ANIMATE: Crises of Capitalism

3.3M views • 16 years ago
Royal Society of Arts
An RSA Animate video that illustrates a talk by geographer David Harvey on the crises of capitalism. It covers creative destruction, wage stagnation masked by credit, and the search for a more just economic order.
Doctor Dissects the Wim Hof Method - Cold Hard Science Analysis44:13

Doctor Dissects the Wim Hof Method - Cold Hard Science Analysis

1.8M views • 7 years ago
Medlife Crisis
A cardiologist runs a detailed, skeptical review of the Wim Hof Method, covering the research on cold exposure and breathing techniques. It also teaches how to read scientific statistics critically.
Flaw in the Enigma Code - Numberphile10:58

Flaw in the Enigma Code - Numberphile

5.4M views • 13 years ago
Numberphile
Numberphile's Dr James Grime explains the flaw in the Enigma machine, namely that a letter could never be encrypted to itself, and how that helped the Allies break the code. It touches on the Bombe and Alan Turing.
The world depends on a collection of strange items. They're not cheap18:32

The world depends on a collection of strange items. They're not cheap

12.6M views • 3 years ago
Veritasium
Veritasium visits NIST to explain Standard Reference Materials, the carefully characterized items such as peanut butter used to calibrate instruments and keep measurements consistent. It covers why they exist and why they are expensive.
The surprising pattern behind color names around the world6:46

The surprising pattern behind color names around the world

8.4M views • 9 years ago
Vox
Vox explains the Berlin and Kay research showing that languages around the world tend to invent color words in the same order. It walks through the hierarchy and the debate around it.
Wendelstein 7-X – from concept to reality10:31

Wendelstein 7-X – from concept to reality

497K views • 12 years ago
Max-Planck-Institut für Plasmaphysik
A CAD-based animation from the Max Planck Institute for Plasma Physics showing how the Wendelstein 7-X stellarator is configured and what its fusion research aims to achieve. It runs about 11 minutes.
Why Adults Can't Develop Perfect Pitch16:26

Why Adults Can't Develop Perfect Pitch

1.8M views • 9 years ago
Rick Beato
Rick Beato argues that adults cannot develop true perfect pitch, which he ties to critical-period brain plasticity and language acquisition. He says it can only be developed in young children, and discusses the research behind this.