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A spectrogram analysis of Aphex Twin's track commonly called [Equation] from Windowlicker, rendered from a lossless version. At about 5:30 the spectrogram reveals an image of Richard D. James's face.

Ben Krasnow of Applied Science builds and operates a simple mass spectrometer, using it to measure potassium isotopes in a salt substitute. He explains the design choices and the theory behind it.

A spectrogram visualization of the sounds in a dial-up modem handshake, with an annotated image explaining each noise. It shows how the handshake's tones map to the negotiation steps.

Destin Sandlin of Smarter Every Day fires .22 Magnum and .38 Special bullets at Prince Rupert's drops, filmed at 170,000 frames per second. The slow-motion footage shows the bullet shattering against the glass tadpole while the drop initially survives.

Der8auer tours Hetzner's test lab and shows a custom AM5 server motherboard with the CPU socket rotated 90 degrees, built for rack airflow in their AX52 servers.

A showcase of the author's fifth-generation quad-core computer built entirely from Minecraft redstone, after two years of development. It features cache, a hardware stack, a GPU driving a 15x15 display, and serial I/O ports.

Scott Forstall demonstrates Siri on stage at Apple's October 2011 iPhone 4S event, showing the voice assistant handling natural requests like checking the weather and getting things done by asking.

Applied Science shows how telecentric and hypercentric optics differ from normal lenses, producing no or negative perspective. The video builds a telecentric system from a Fresnel lens and demonstrates a lens that can see around objects.

LabCoatz uses mass spectrometry, with help from other science YouTubers, to reverse engineer the Coca-Cola flavor and builds a chemically-identical replica. The video walks through a year of work on the formula.

Tom7 (suckerpinch) builds and evaluates a series of absurd hard drives, including storage made from ping packets across the internet. The video accompanies his paper and mixes deep technical hacking with comedic storytelling.

A short IEEE Spectrum clip of Stanford's autonomous car Junior learning to powerslide into a parking spot. It shows several approaches to the maneuver.

Out of Spec Reviews takes a one-hour drive in an Avatr 11 running Huawei's Qiankun ADS 3.2 driver assistance system in China, billed as the best FSD-like system there.

Ruby developer Avdi Grimm gives a seven-minute tour of Pharo Smalltalk's development environment, focusing on tools like search-by-example and the integrated, live coding experience.

Mark Rober visits Zipline and looks at its autonomous delivery drones, including medical and blood deliveries in Rwanda. He demonstrates how the drones' propeller design and cable-lowered delivery pod make them quiet and precise.

Casey Muratori gives a fast tour of the RemedyBG debugger for Windows, which he uses daily. He shows its speed and features, especially the watch window.

A short Ericsson film demoing Erlang, showing concurrent processes, debugging tools, and hot code reloading, including crashing parts of a running system while calls continue.

Festo's promo video of SmartBird, an ultralight bionic flying model inspired by the herring gull that flaps and twists its wings to fly. It shows the robot in flight.

Saqib Shaikh, a blind developer, shows how he writes and debugs code in Visual Studio 2017 using a screen reader. The short demo shows an expert doing ordinary developer tasks.

A long live-coded DJ set in which Sam Aaron creates all the music in real time by writing code in his Sonic Pi system. It demonstrates algorithmic electronic music performance.

Smalltalk pioneer Dan Ingalls presents the Lively Kernel at JSConf US 2012, a live, direct-manipulation programming environment running in the browser. He shows drag-and-drop building of live objects on the web.

A 12-minute film in which Erlang's creators demonstrate the language's fault tolerance and live-system features, including phoning each other to show it working. This version has fixed audio.

Doug DeMuro reviews the Rivian electric delivery van built for Amazon, walking through its quirks, features and design innovations. It is a long, detailed tour of the vehicle inside and out.

Mark Rober builds a hot tub filled with sand fluidized by air blown from below, so that the sand behaves like a liquid. He explains how fluidized beds work and shows people swimming in them.

A family video in which kids write instructions for making a peanut butter and jelly sandwich and a parent follows them exactly as written, with comic results. It demonstrates how precise instructions must be.

Footage shot in New York City in 1911 by a Swedish film company, upscaled to 4K and 60 fps with neural networks and optionally colorized. The creator notes the colors are artificial and added only for ambiance.

Stuff Made Here builds a device that lets a blind person perceive their surroundings by touch, using an iPad's lidar and a mechanical tactile display driven by motors. The video walks through the build and the limits he hit.

Valve opens up a Steam Deck to show its internal components and explain which are replaceable or upgradable. It advises against self-repair but shares the details openly.

The winning demo from Revision 2015's oldskool competition, running on a real 1981 IBM PC with CGA at 4.77MHz. It uses extreme tricks to produce effects, graphics and sound far beyond what the hardware was thought capable of.

ASML's short promotional fly-through of its High NA EUV lithography platform, the TWINSCAN EXE, which supports 8-nanometer resolution. It shows the machine's internals including advanced anamorphic optics.

Hugh Jeffreys tears down the iPhone 13 and assesses its repairability, showing how Apple ties parts like the display and Face ID hardware to specific devices. He demonstrates that swapping parts, even genuine ones, can disable features.

A Disney Research SIGGRAPH 2013 demo of an interactive system that lets non-experts design animated mechanical characters. The user sketches motion curves and the system generates optimized mechanisms and gear trains for 3D printing.

A look at how granite surface plates are inspected, calibrated and reconditioned using an autocollimator, a repeat meter and diamond-charged cast iron laps. Measurements are at the level of millionths of an inch.

A hobbyist builds a prototype full-frame CCD camera from scratch, with open-source design files and a custom PCB. The video shows the first, still rough prototype.

Linus Tech Tips tests a large batch of DisplayPort cables with a Total Phase cable tester, checking bandwidth and signal quality. Many cables did not meet their claimed specs.

A short look at CoeLux, an artificial skylight that recreates the scattering process that makes the sky look blue, producing a convincing illusion of distant sun and depth.

A Consumer Reports and IIHS crash test pitting a 2009 Chevy Malibu against a 1959 Bel Air. It shows how much better modern cars protect occupants.

Fully Charged episode where Elliot drives the NIO ES8 SUV and visits a battery swap station that replaces the pack in about three minutes. It covers the ownership model of swapping and what it could mean for EV charging.

OpenAI's livestream demo of GPT-4 with Greg Brockman, showing its capabilities and limitations. Highlights include writing code, turning a hand-drawn sketch into a website, and a tax-question example.

A one-minute clip from Insider showing an Airbus airliner's wings flexing far more than most people expect during a wing load test. It is meant to reassure nervous flyers about turbulence.

Road & Track puts a 2014 Porsche 911 Turbo through 50 back-to-back launch-control runs on a SoCal runway. The car completes 61 launches before the testers lose count.