electron

Steve Mould shows Spintronics, a set of mechanical components such as resistors, capacitors and transistors linked by chains, that give an intuitive feel for how electrical circuits work.

Ben Krasnow shows the first image from his home-built scanning electron microscope, after months of work, and walks through how the parts operate together.

Tom Scott explains why electronic voting is a bad idea. Elections must be trusted by everyone and attacks on software scale in ways attacks on paper do not, so open source or blockchain fixes do not solve it.

Tom Scott explains for Computerphile why electronic voting is a bad idea, arguing that paper ballots are transparent, auditable and hard to tamper with at scale. He covers why moving voting to phones, tablets or computers undermines trust and verifiability.

A short Harvard Online animated lesson on how the mitochondrial electron transport chain works. It shows proton pumping and the machinery that drives ATP synthesis.

Techmoan demonstrates the Tefifon, a vintage German audio player that combines elements of record and tape with a grooved elastic loop. He shows how it works and plays it.

TechAltar's history of Philips, once Europe's largest tech company and a world leader in lighting, radio and physical media. It traces how the company sold off or spun out its businesses, until little remains but the licensed name.

A short look at the Voder, the first electronic voice synthesizer, demonstrated by Bell Labs at the 1939 World's Fair. It was operated by trained women using ten finger keys, foot pedals and a knee lever.

The main theme from Eduard Artemyev's score to the 1979 Soviet film Siberiade, an electronic piece that features the ANS synthesizer.

Sean Hodgins shows the build of the Arduino-based glitter bomb package-theft trap he made with Mark Rober, covering the electronics and the problems that came up. The code and schematics are on GitHub.

Ben Eater's short update announcing his plan to build another 8-bit computer from scratch on camera. It kicks off the breadboard computer series that became widely known.

Ben Eater gives a detailed look at how an NPN bipolar junction transistor works and what it does. It is an eleven-minute explanation aimed at building real understanding of the device.

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.

ElectroBOOM's Mehdi Sadaghdar explains how a full bridge rectifier works, the building block of AC to DC converters, with his usual humor and a demonstration of the circuit.

Shawn Hymel of DigiKey introduces KiCad and explains how printed circuit boards are manufactured. It is the first part of a beginner series that builds a 555 badge project.

Ben Eater shows how to build logic gates out of transistors, including NOR gates. It is part of his clear hardware-from-scratch teaching style.

Big Clive shows how to pick up discarded disposable vape devices from the roadside and extract the rechargeable lithium cells inside. He explains why these devices contain the same circuitry as rechargeable ones and how to reuse the cells.

Kenneth Finnegan shows how USB-C Power Delivery trigger boards like the ZY12PDN negotiate 5V to 20V so you can power projects from a USB-C charger, including the color coding for each voltage.

mitxela shows his KiCad plugin that rounds PCB tracks to give circuit boards organic, melted-looking layouts instead of rigid geometric ones.

A short tour of the Megaprocessor, a microprocessor built at enormous scale from tens of thousands of discrete transistors. The builder shows what the machine is made of and where it now lives, at the Centre for Computing History in Cambridge, where visitors can play Tetris on it.

Styropyro tests an eBay laser tattoo removal device and finds it is a roughly million-watt pulsed laser, powerful enough to ignite air in the beam. He had bought it hoping to salvage an Nd:YAG laser cavity.

DIY Perks shows how to modify devices that use older USB connectors so they charge and connect over USB Type-C. He solders in a USB-C connector board and works through cases such as dongle-dependent gadgets and a mouse receiver.

The 8-Bit Guy explains how character LCD screens work and how to control them directly, first part of a series.

A step-by-step guide to building a lifter, a small triangular ionocraft made from balsa wood, aluminum foil and thin wire, powered by a high-voltage supply. It also shows high-voltage safety practices.

Technology Connections explains how touch lamps work and traces them back through patents to the 1950s, far earlier than most people assume.

Dave Jones of EEVblog investigates why a 4K BenQ monitor switches itself off, tracing it to static discharge from an office chair. He uses an oscilloscope to examine the static impulses.

The opening track of Charanjit Singh's 1982 album Synthesizing: Ten Ragas To A Disco Beat, recorded in Bombay. It plays Indian raga forms on a Roland Jupiter-8, TB-303 and TR-808 over a disco beat.

A Plogue developer shows the custom electronic test rigs built to measure the Sega Mega Drive/Genesis sound chip (YM2612) for the chipsynth MD emulation. It covers the years of testing and reverse engineering needed to reproduce the chip's quirks accurately.

Jim Pavloff rebuilds the Prodigy track Smack My Bitch Up in Ableton, identifying the samples used and recreating the track by hand.

Jim Pavloff rebuilds The Prodigy's 'Voodoo People' in Ableton from its listed samples. The video shows how the track is assembled and how close a handmade reconstruction can sound.

Part one of Look Mum No Computer's series on buying a whole church pipe organ, covering how it was removed from its home. The series goes on to restoring it and rewiring it for MIDI.

Musician Thoj performs a live looping session on the Teenage Engineering OP-1 synthesizer, building a deep house track layer by layer.

Louis Rossmann argues that reballing flip-chip GPUs is not a real fix for dead laptop GPUs. He explains why such repairs and oven reflow tricks fail and what is actually happening with failing hardware.

The official video for Boards of Canada's Dayvan Cowboy, built from reassembled documentary footage. It forms a dreamlike journey from space to the sea and shore, including Kittinger's 1960 high-altitude jump and surfing footage.

The music video for Aphex Twin's T69 Collapse, directed by Weirdcore, with heavy strobing and glitchy audiovisual imagery. It is a track from the Collapse EP.

Big Clive tears down a smart meter with a wireless modem found among fly-tipped materials. He examines its internals and checks conspiracy claims about microphones, cameras and 5G.

Nigel Stanford's music video Cymatics, in which real science experiments, such as Chladni plates, ferrofluid and water, visualize the audio.

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

John Chowning's 1977 computer music piece Stria, composed with FM synthesis, which he discovered in 1967. It unifies timbre and scale structure around the Golden Mean.

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.