pid controller

An animated Sprouts video presenting Dietrich Bonhoeffer's argument that stupidity is more dangerous than evil, because reason cannot reach stupid people. It frames stupidity as a social and moral phenomenon.

3Blue1Brown builds toy SIR models to simulate how an epidemic spreads and tests scenarios like social distancing, travel restrictions, central gathering places and quarantine. It was made during the early COVID-19 outbreak.

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.

MedCram's Dr. Roger Seheult summarizes a discussion with Dr. Michael Mina on cheap, paper-based at-home COVID-19 antigen tests. It explains why lower sensitivity can still work well for screening infectious people.

The Thought Emporium shows how they engineered a yeast strain to produce real spider silk, after more than two years of lab work and many failures. The video explains the genetic engineering process behind it.

John Oliver's Last Week Tonight segment covers the working conditions of US air traffic controllers and the understaffing, outdated equipment (including floppy disks) and funding structure of the FAA. It mixes comedy with policy criticism.

Sabine Hossenfelder explains what flat earthers believe and why, arguing that their reasoning is wrong but not stupid. She suggests scientists should take such believers more seriously.

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.

Not Just Bikes explains how SUVs and light trucks have grown in size and share of US sales, and why that is dangerous for pedestrians, cyclists and city life. He covers the regulatory loopholes, such as fuel economy rules and the chicken tax, that favored them.

UnHerd interview with Swedish epidemiologist Johan Giesecke, who explains why he thinks lockdowns are the wrong policy and describes Sweden's approach during the spring 2020 pandemic.

CityNerd critiques the Las Vegas Loop, the Boring Company's tunnel transit system, arguing its design and operation are poor. The video covers how the system actually runs.

Ben Vallack compares finger movement on a staggered keyboard with an ortholinear grid keyboard, using an Anne Pro 2 and a ZSA Planck EZ. He argues the stagger forces awkward finger motion.

Joe Rogan interviews epidemiologist Michael Osterholm in March 2020 about the coronavirus. They cover how it spreads, masks, hygiene, social distancing, school closures and vaccine timelines.

aGameScout explains rolling, the third major NES Tetris playstyle, in which players tap the back of the controller to move pieces faster than hypertapping. It covers how the technique works and where it comes from.

A 35-minute demonstration of NeXTSTEP Release 3 by Steve Jobs. It shows the object-oriented development environment and features such as dragging a live chart between apps.

An Apple WWDC24 session introducing Embedded Swift, a subset of Swift with no runtime that targets tiny microcontrollers. It demonstrates the idea on an off-the-shelf Matter smart home device.

CityNerd explains why traffic congestion grows nonlinearly as more cars use a road network, and why adding road capacity tends not to fix it. It covers the consequences for drivers, bus riders, cyclists and pedestrians, and discusses alternatives such as true bus rapid transit.

A short video that reads out comments from the leaked Team Fortress 2 source code to show the frustration of Valve's programmers over time.

Asian Boss interviews Professor Kim Woo-joo of Korea University Guro Hospital about COVID-19 in early 2020. He covers masks, testing, aerosol spread, and South Korea's response.

A Kurzgesagt animation on South Korea's record-low fertility rate and rapidly aging population. It explains why a demographic collapse looks hard to reverse and projects the population shrinking sharply by 2060.

A short demo of typing on the Modos Paper Monitor, an open e-ink monitor, using 4-level grayscale to show low latency.

Scott Manley explains the nuclear salt water rocket, Robert Zubrin's concept of a rocket fueled by a rapid nuclear reaction in uranium salt dissolved in water. He covers its extraordinary performance and the dangers of managing it.

A Veritasium video touring Relativity Space and explaining why 3D printing whole rockets cuts tooling costs, allows rapid iteration, reduces part count and enables new designs. It includes an interview with Scott Manley on aerospace engineering.

A demo of the Bad Apple music video played back at 60 FPS on an e-ink display, up from 2.4 FPS in an earlier attempt. It is part of the effort behind the open source Modos e-ink monitor.