three.js

Brian Peiris demonstrates RiftSketch, a web app where you write JavaScript with Three.js while wearing an Oculus Rift and watch the world around you change live. It runs on Firefox builds with WebVR.

Mozilla's short demo of Unreal Engine 3 running in Firefox, ported by Mozilla and Epic in four days using Emscripten and asm.js.

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.

An animation presenting a non-standard helical or vortex model of the solar system, in which the planets trail the Sun through space instead of orbiting in flat circles. The model is a non-conventional view that the author says differs from standard diagrams.

Ted Nelson demonstrates Xanadu Space, his software for representing hypertext in three-dimensional space with linked, referenced content fragments.

A three-minute Emacs Rocks screencast demonstrating Magit, the Git interface inside Emacs, including staging and other everyday operations.

Afrotechmods plays with 2600F ultracapacitors that can dump hundreds of amps, shorting them to vaporize bits of metal. Along the way he explains the three most important capacitor equations. The uploader warns that the capacitors are not designed to be shorted.

The first episode of Ian Hubert's Dynamo Dream series, a one-person sci-fi short made in Blender with a gritty futuristic city setting. It was made with help from friends and Patreon supporters over about three years.

Mark Rober shows an automatic bullseye dartboard that tracks a thrown dart with motion capture and moves in real time so it always hits the center. He spent over three years on the project.

A three-minute clip of magician Ricky Jay performing a card manipulation routine, including table faro shuffles. The routine builds in intensity and ends with a surprising finish.

A hidden-camera social experiment in a park where three people try to steal a bike in the open: a white teenager, a black teenager and a young woman. It records how bystanders react to each.

Jon Gjengset spends about three hours livecoding complex changes in a Rust codebase with agentic AI tools, testing his hypothesis that AI is weak at non-pattern work. He documents where Claude Code helps and where it struggles.

Google's short promo for Project Starline, a booth that shows a life-size, three-dimensional view of the person you are talking to. It presents the technology as a magic window for friends, families and co-workers who are far apart.

A three-minute demonstration with a decommissioned 4 tesla MRI magnet showing how magnetic objects are pulled in and oscillate along the bore. It illustrates the safety hazards of ferromagnetic items near MRI scanners.

A three-minute demo of a series circuit with three LEDs that behaves in a surprising way, posed as a question of how it works.

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.

A three-minute capture of SORTDEMO.BAS, the sorting visualization that shipped with QBasic. It animates insertion, bubble, heap, exchange, shell and quick sort with chiptune-like sound.

A demo of the Cubli, a 15 cm cube that uses reaction wheels to jump up onto a corner, balance there and fall in a controlled way to move. The video shows these three abilities chained into locomotion.

Linus Tech Tips tests whether chaining many PCIe riser extensions causes loss of GPU performance. They keep adding extensions to see how far the signal will go.

Amateur footage from 2014 of small airplanes being lifted and blown around during a microburst. It is a three-minute clip showing how violent the gusts can be.

Tech Tangents sets up original Doom's three-screen multi-monitor mode, which required a separate networked computer for each monitor. The video covers the hardware and setup work and the result.

A three-minute demo of ProFORMA, a system from Cambridge that builds textured 3D models live from a video of an object.