Upgrading RAM on most computers is often quite a straightforward task: look up the supported modules, purchase them, push a couple of levers, remove the old, and install the new. …read more (https://hackaday.com/2025/04/22/making-a-one-of-a-kind-lime2-sbc/)

What’s Sixty Feet Across and Superconducting?
https://hackaday.com/2025/04/22/whats-sixty-feet-across-and-superconducting/

What’s sixty feet (18.29 meters for the rest of the world) across and superconducting? The International Thermonuclear Experimental Reactor (ITER), and probably not much else. The last parts of the …read more (https://hackaday.com/2025/04/22/whats-sixty-feet-across-and-superconducting/)

Why Physical Media Deserved To Die
https://hackaday.com/2025/04/22/why-physical-media-deserved-to-die/

Over the course of more than a decade, physical media has gradually vanished from public view. Once computers had an optical drive except for ultrabooks, but these days computer cases …read more (https://hackaday.com/2025/04/22/why-physical-media-deserved-to-die/)

Game Boy PCB Assembled With Low-Cost Tools
https://hackaday.com/2025/04/22/game-boy-pcb-assembled-with-low-cost-tools/

As computers have gotten smaller and less expensive over the years, so have their components. While many of us got our start in the age of through-hole PCBs, this size …read more (https://hackaday.com/2025/04/22/game-boy-pcb-assembled-with-low-cost-tools/)

DIY Record Cutting Lathe is Really Groovy
https://hackaday.com/2025/04/22/diy-record-cutting-lathe-is-really-groovy/

Back in the day, one of the few reasons to prefer compact cassette tape to vinyl was the fact you could record it at home in very good fidelity. Sure, …read more (https://hackaday.com/2025/04/22/diy-record-cutting-lathe-is-really-groovy/)

British Wartime Periscope: a Peek Into the Past
https://hackaday.com/2025/04/22/british-wartime-periscope-a-peek-into-the-past/

We all know periscopes serve for observation where there’s no direct line-of-sight, but did you know they can allow you to peer through history?  That’s what [msylvain59] documented when he …read more (https://hackaday.com/2025/04/22/british-wartime-periscope-a-peek-into-the-past/)

eInk PDA Revisited
https://hackaday.com/2025/04/22/eink-pda-revisited/

In the dark ages, before iOS and Android phones became ubiquitous, there was the PDA. These handheld computers acted as simple companions to a computer and could often handle calendars, …read more (https://hackaday.com/2025/04/22/eink-pda-revisited/)

How Supercritical CO2 Working Fluid Can Increase Power Plant Efficiency
https://hackaday.com/2025/04/22/how-supercritical-co2-working-fluid-can-increase-power-plant-efficiency/