Using a Cheap DC Motor to Make a Go-Kart Go
https://hackaday.com/2026/11/04/using-a-cheap-dc-motor-to-make-a-go-kart-go/

Where Archimedes said that he could move the Earth given a large enough lever and a suitable fulcrum, [Current Concept] decided that he could give his own spin on this …read more (https://hackaday.com/2026/11/04/using-a-cheap-dc-motor-to-make-a-go-kart-go/)

From Germanium to Diamond: the Many Shapes of Semiconductors
https://hackaday.com/2026/11/04/from-germanium-to-diamond-the-many-shapes-of-semiconductors/

Germanium diode. By Morcheeba [CC BY-SA 2.5], via Wikimedia Commons (https://en.wikipedia.org/wiki/File:Diode-closeup.jpg)
' data-large-file="https://hackaday.com/wp-content/uploads/2016/08/germanium_diode_800px-diode-closeup.jpg?w=800">It seems fair to say that semiconductor technology has been one of the most influential inventions in human history. Practically overnight it turned human technology from being large, cumbersome and …read more (https://hackaday.com/2026/11/04/from-germanium-to-diamond-the-many-shapes-of-semiconductors/)

Making a Wax Motor for Micrometer-Level Control
https://hackaday.com/2026/11/04/making-a-wax-motor-for-micrometer-level-control/

Although not very glamorous, wax motors are a fairly common type of linear actuator. They use the thermal response of waxes and the resulting volumetric expansion or reduction to create …read more (https://hackaday.com/2026/11/04/making-a-wax-motor-for-micrometer-level-control/)

It’s DOOM
https://hackaday.com/2026/11/04/its-doom-on-a-toy-camera/

Dirt cheap toy cameras have long been a target for the curious camera hacker, and we’ve seen plenty of lens swaps and other hardware hacks. Until now their internals have …read more (https://hackaday.com/2026/11/04/its-doom-on-a-toy-camera/)

Beautiful Laser Harp Hides Some Neat Tricks
https://hackaday.com/2026/11/04/beautiful-laser-harp-hides-some-neat-tricks/

Laser harps aren’t quite a right of passage, in that not everyone builds them, but it’s likely everyone at least contemplates building one at one time or another. We’re lucky …read more (https://hackaday.com/2026/11/04/beautiful-laser-harp-hides-some-neat-tricks/)

The First Business Computer Hits 75!
https://hackaday.com/2026/11/04/the-first-business-computer-hits-75/

Many of us will have followed the early history of electronic computing, from the urgent necessities of war, to universities, and then on into the wider world. Most of the …read more (https://hackaday.com/2026/11/04/the-first-business-computer-hits-75/)

PiPedal Grants Guitar Effects, Amp Emulation, and More
https://hackaday.com/2026/11/04/pipedal-grants-guitar-effects-amp-emulation-and-more/

Back in the day, if one wanted a particular guitar effect one would purchase an effects pedal or “stomp box”, and even a modest collection of them could be an …read more (https://hackaday.com/2026/11/04/pipedal-grants-guitar-effects-amp-emulation-and-more/)