geiger counter

A two-minute minutephysics video explaining why turning a bicycle requires first steering briefly the other way. It covers counter-steering and balance with slow-motion footage and 3D animation.

A 45-minute Flex Your Rights documentary on how to deal with police in three situations: traffic stops, encounters at home, and on the street. It presents practical advice on asserting constitutional rights and refusing searches.

Coffeezilla's investigation into the Counter-Strike 2 skin gambling ecosystem, covering casino sites, influencers and esports teams that profit from it. It is part of a multi-part series on Valve's skin economy and its effects on young players.

California Superbike School demonstrates its 'No B.S.' bike, which has fixed handlebars so riders can only steer with body lean. It illustrates how little control that gives compared with countersteering.

The Thought Emporium follows up on his earlier video showing negative ion products are radioactive, reporting that Amazon pulled listings and companies shut down. He tests more radioactive quack products with a Geiger counter and cloud chamber.

Dave Jones of EEVblog demonstrates that a frequency counter can detect gravity through the 2g tipover effect on quartz crystal oscillators. He shows the reading shift as the instrument's orientation changes.

Louis Rossmann examines fuses sold on Amazon that fail to trip at their rated current, including a 2A fuse surviving 8 amps. He uses it to criticize Amazon's lax control over safety-relevant products.

Valve's John McDonald presents at GDC 2018 on how Valve uses deep learning (VACnet) to detect cheaters in Counter-Strike: Global Offensive. He covers training on human-reviewed replays and how model output is confirmed by manual review.

Veritasium explains why bicycles are stable, arguing that gyroscopic effects are not the answer. The video shows countersteering and an experiment where riders blocked from steering the opposite way cannot turn.

A 60 Minutes segment in which Navy pilots describe encounters with unidentified aerial phenomena, ahead of a report due to Congress.

A five-minute video showing how to build a counter in the Imba web programming language in under a minute, then style it.

Thunderf00t critiques a 60 Minutes segment in which Navy pilots describe UFO encounters, arguing the footage has mundane explanations and has been debunked.

A Chris Rock sketch giving comedic advice on how to behave during police encounters to avoid getting hurt.

A Joe Rogan podcast with retired Navy commander David Fravor, who describes his 2004 Tic Tac UFO encounter, and filmmaker Jeremy Corbell. Fravor walks through the incident and the released videos.

Black musician Daryl Davis tells how a chance encounter led him to befriend Ku Klux Klan members and seek the source of racial hate. He argues that sitting down and talking with people can change them.

A long Team House podcast interview with James Lawler, a former CIA operations officer who led counterproliferation work against the A.Q. Khan nuclear network. He discusses HUMINT, WMD and how such operations were run.

Mathematician Colin Wright demonstrates juggling and explains the mathematics of juggling patterns, including notation that led to new throwing patterns. It is a public presentation at the Museum of Mathematics aimed at a general audience.

Coffeezilla investigates Counter-Strike skin gambling, the role of Valve and the legal and PR response, including effects on minors.

A 1960 CBS clip in which Leonard Bernstein introduces and conducts Bach's Keyboard Concerto No. 1 in D minor with a 28-year-old Glenn Gould at the piano. Gould's performance starts around 5:08.

Coffeezilla recounts being offered a $20k bounty to expose a Counter-Strike skin casino, then investigates and finds a different story. It is the first episode of a series on CS skin gambling.

A DEF CON 23 talk on researching whether a commercial quadcopter could be forced to land by interfering with its GPS signal, inspired by a neighbor's kid's drone. It covers the research and the legal and technical issues encountered.

Dave Jones of EEVblog tears down a fake Apple A1265 USB charger and shows the shortcuts that make it unsafe, such as poor isolation.

An AP clip from October 2008 of John McCain correcting a town hall questioner who called Barack Obama an Arab, telling her Obama is a decent family man. It is a brief campaign trail moment.

David Epstein argues in this TED talk that improving athletic records owe much to technology, training and the selection of specialized body types, not just humans getting inherently better. He gives counter-intuitive examples across sports.

Electronics hobbyist bigclivedotcom tears down a cheap USB power supply with a manufacturing fault that carries full mains voltage to the USB ports, showing the risk of electric shock.

A one-minute Rheinmetall promotional demo of Oerlikon Ahead air burst ammunition, which throws a cloud of sub-projectiles to destroy small air targets.

Not Just Bikes argues that self-driving cars will worsen sprawl and car dependence and harm cities. The video compares car-centered and people-centered urban design and weighs what cities should do instead.

Elevated by Rgba and TBC, the winner of the 4k intro compo at Breakpoint 2009. It is a realtime procedurally generated 3D flythrough with music, all in a 4096-byte executable.

Hans Rosling uses data and animated statistics to show how world population is changing, why birth rates fall as child survival and wealth rise, and why population is expected to peak around 11 billion. It also tackles common misconceptions about Africa and family planning.

Vaclav Smil's talk on historic energy transitions and what they imply for climate investment. He argues that transitions are slow, technology improves gradually, and only absolute cuts in energy use would truly work.

Jim Keller gives a UC Berkeley EECS colloquium arguing that Moore's Law is not dead. He surveys upcoming technologies and the multiple innovation curves that can keep transistor density and performance scaling.

Joseph Everett, with Dr. Frank Mitloehner, argues that eating less meat will not do much for the climate. He covers beef's water footprint, land and feed use, and methane.

Dr. Jason Fung, a nephrologist, explains therapeutic fasting as a treatment for obesity and type 2 diabetes. He frames it around the two-compartment problem of fat storage and insulin resistance.

The Grugq's Hack In The Box 2012 talk on operational security for hackers, drawing on hacker indictments and counter-intelligence research. It reviews OPSEC goals and methods for avoiding detection and arrest, with case studies of how hackers got caught.

ContraPoints' 35-minute video essay on incels, examining the community, its worldview and how people get radicalized. It is delivered with theatrical style and an empathetic tone.

3Blue1Brown visualizes high-dimensional spheres to explain a surprising puzzle about how a sphere fits in a box as dimensions grow. It builds geometric intuition for counterintuitive properties of high-dimensional space.

Dirk Hohndel explains why the Subsurface dive log project migrated from Gtk to Qt, the obstacles encountered, and advice for other applications frustrated with Gtk. It is a linux.conf.au 2014 talk.

Lex Fridman interviews Navy pilot David Fravor, a primary witness of the 2004 Tic Tac UFO encounter, about the sighting, military aviation and aerospace engineering. The conversation runs close to four hours.

The first class of Timothy Snyder's Yale course on the making of modern Ukraine. It introduces the course and asks what it means for a nation to exist in light of the Russian invasion.

Josh Kaufman's TEDx talk argues that you can reach practical competence in almost any skill with about 20 hours of focused practice, rather than the 10,000 hours often quoted. He describes how becoming a parent led him to rethink how adults learn, and lays out a short method for rapid skill acquisition.