Making a truly flat surface is a modern engineering feat, and not a small one. Even making something straight without reference tools that are already straight is a challenge. However, …read more (https://hackaday.com/2026/01/24/ancient-egyptian-flatness/)

Tamper Detection with Time-Domain Reflectometry
https://hackaday.com/2026/01/24/tamper-detection-with-time-domain-reflectometry/

For certain high-security devices, such as card readers, ATMs, and hardware security modules, normal physical security isn’t enough – they need to wipe out their sensitive data if someone starts …read more (https://hackaday.com/2026/01/24/tamper-detection-with-time-domain-reflectometry/)

Building A Little Quadruped Robot
https://hackaday.com/2026/01/24/building-a-little-quadruped-robot/

Robots don’t have to be large and imposing to be impressive. As this tiny quadruped from [Dorian Todd] demonstrates, some simple electronics and a few servos can create something altogether …read more (https://hackaday.com/2026/01/24/building-a-little-quadruped-robot/)