coriolis effect

Peter Sripol builds and flies an RC aeroplane whose wings are rotating KFC buckets, using the Magnus effect (Flettner rotors) for lift. It is a hobbyist experiment in unconventional aerodynamics.

A short Veritasium video showing how far a backspinning basketball would travel dropped off a dam. It demonstrates the Magnus effect and links to Flettner rotor ships and aircraft.

A two-minute BBC Horizon clip demonstrating the McGurk effect, where what you see of a speaker's mouth changes the sound you hear.

A four-minute demo of the greenhouse effect showing how increased carbon dioxide raises temperature. It uses a simple setup that is dramatic and easy to understand.

A review of the Symbolics Space Cadet keyboard, with its Honeywell Hall effect switches, including how it sounds and feels, and a typing demonstration. It is part of a series of vintage keyboard reviews.

A short screen recording of an Ubuntu Karmic Koala desktop running KDE4 with Compiz Fusion 3D cube effects and CairoDock.

A 2007 side-by-side demo comparing Windows Vista's Aero interface with Ubuntu running Beryl/Compiz, showing effects such as the desktop cube and burning windows.

Andrew, diagnosed with early onset Parkinson's at 35, shows how deep brain stimulation surgery has controlled his motor symptoms. The short video shows his tremors with the stimulator off and on.

A BBC Horizon clip demonstrating the McGurk effect, where the same audio sounds like different syllables depending on the mouth movements you see. It shows that people integrate visual speech information into what they hear.

Arend Schwab demonstrates a research bicycle, the two-mass-skate design, that balances itself without gyroscopic effects or trail. It challenges the common explanations for why a moving bicycle stays upright.

A game-dev video demonstrating a noise shader in Godot where shapes are visible only in motion against animated noise and vanish when the game is paused or screenshotted. The demo is available on GitHub.

The first-place PC demo at Assembly 1992, Unreal by Future Crew, showing real-time effects such as palette-based wormholes.

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

Ben Heck modifies a keyboard with magnets, Hall effect sensors and an Xbox controller so the WASD keys give analog control. He walks through the hardware build.

A through-the-lens comparison of the Oculus Quest 2, HP Reverb G2 and Valve Index, capturing what each headset's display actually looks like. It also previews a 90Hz mode coming to Quest 2.

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.

Stargate Studios' 2009 virtual backlot reel shows before-and-after shots in which green screen and compositing replace locations in ordinary TV dramas and comedies. It shows how much of a seemingly real show is computer generated.

A short ShaderToy piece by Martijn Steinrucken (The Art of Code) that renders rain on a windshield during a night drive, with blurred bokeh lights. It is set to music.

Footage of FAA altitude chamber hypoxia training for pilots in which a participant passes out from oxygen deprivation. It shows how quickly and subtly cognition fails at altitude.

A one-minute demo comparing RetroArch shaders on the Sonic the Hedgehog waterfall, where Sega Genesis dithering creates a transparency effect. It shows how different shaders emulate the CRT look.

Deepfake artist Shamook's improved version of the Luke Skywalker scene from The Mandalorian season 2 finale, replacing the official CGI face with a deepfake.

A 2006 video showing a man openly cutting the lock and stealing a bike in New York City while passersby, including police, ignore him.

Memories is a 256-byte MS-DOS demo that packs eight effects and MIDI soundscapes into a tiny program. It won first place at Revision 2020.

Overdrive 2 by TiTAN, a Sega Mega Drive demo that won first place in the Oldskool competition at Revision 2017. It shows effects and 3D graphics on the stock console.

A DIY demonstration of a fan-and-screen mosquito trap that uses carbonated water as a CO2 attractant. The creator reports catching about 8,000 mosquitoes in two nights.

Magician Kostya Kimlat performs a card trick on Penn & Teller: Fool Us that fooled the duo, using Penn's favorite card trick as a basis.

A 60fps capture of Future Crew's 1993 MS-DOS demo Second Reality, one of the best-known pieces of the demoscene. It runs about 16 minutes of real-time graphics and music effects on PC hardware of the era.

Linus Tech Tips reviews the Looking Glass 8K holographic display, a glasses-free 3D monitor. The video shows the display in action and explains how it works.

A Microsoft Research demo from TechFest 2012 of a lab touch system that lets viewers feel the effect of different input latencies, down to about 1 ms. It shows how much more responsive dragging feels compared with typical 100 ms touch delay.

A tool-assisted speedrun of Ocarina of Time at Summer Games Done Quick 2022, using TASBot and arbitrary code execution to reach an alternate ending in about 53 minutes. The run is introduced by its creators and followed by an interview.

Robotic Liberation by PWP is a music video demo performed entirely by an unexpanded Commodore VIC-20 and a 1541 disk drive, using only a few kilobytes of RAM and a 16 KB disk. It uses demoscene effects to tell a story.

Casey Muratori captures CygnusEd Professional running on an Amiga 2000, showing how smoothly it scrolled text. He notes the real effect is better on a period CRT.

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.

A demo of PREDATOR (TLD), a real-time object tracker that learns the appearance of its target and improves while it tracks. The technology was later developed commercially.

A 1971 DEC LAB-8/e (PDP-8/e) minicomputer plays music by inducing noise into a nearby AM radio. The software is Richard Wilson's 1975 Music Compiler running under OS/8.

Peter Sripol shows his homemade Part 103 electric airplane flying, built from hobby brushless motors and batteries. The video covers the first flight out of ground effect.

LockPickingLawyer shows what happens when liquid gallium is applied to an aluminum Abus padlock, which weakens and breaks the metal. It is a short demonstration of gallium's effect on aluminum.

A short clip demonstrating a phone-based social engineering trick in which a crying baby in the background is used to pressure a customer service rep. It shows how attackers exploit human sympathy rather than technical flaws.

Veritasium explains why a halved grape in a microwave makes plasma: the grape traps microwaves, and the fields of two halves interact to concentrate energy where they touch.

Styropyro wires 100 car batteries in parallel to produce more current than a lightning bolt and tests what happens when it is shorted. The experiments, done with other YouTubers, show spectacular effects of extreme current.