You never know when inspiration is going to strike, and for [Ekaggrat Singh Kalsi], it struck while he was playing with one of his daughter’s hair ties. The result is …read more (https://hackaday.com/2025/01/10/springs-and-things-make-for-a-unique-timepiece/)

The Engineer Behind Mine Detection
https://hackaday.com/2025/01/10/the-engineer-behind-mine-detection/

According to [Joanna Goodrich]  in IEEE Spectrum, prior to World War II, soldiers who wanted to find land mines, simply poked at the ground with pointed sticks or bayonets. As …read more (https://hackaday.com/2025/01/10/the-engineer-behind-mine-detection/)

AA Battery Performances Tested, So Get The Most For Your Money
https://hackaday.com/2025/01/10/aa-battery-performances-tested-so-get-the-most-for-your-money/

[Project Farm] has a video in which a wide variety of AA cells are analyzed and compared in terms of capacity, internal resistance, ability to deliver voltage under load, and …read more (https://hackaday.com/2025/01/10/aa-battery-performances-tested-so-get-the-most-for-your-money/)

Tactility; The ESP32 Gets Another OS
https://hackaday.com/2025/01/11/tactility-the-esp32-gets-another-os/

Doing the rounds this week is a new operating system for ESP32 microcontrollers, it’s called Tactility, and it comes from [Ken Van Hoeylandt]. It provides a basic operating system level …read more (https://hackaday.com/2025/01/11/tactility-the-esp32-gets-another-os/)

Embedding Lenticular Lenses Into 3D Prints
https://hackaday.com/2025/01/11/embedding-lenticular-lenses-into-3d-prints/

A research project shows that it’s possible to create complex single-piece lenticular objects, or objects that have lenticular lenses built directly into them. The result is a thing whose appearance …read more (https://hackaday.com/2025/01/11/embedding-lenticular-lenses-into-3d-prints/)

Comparing Ways to Add Threads to Your 3D Prints
https://hackaday.com/2025/01/11/comparing-ways-to-add-threads-to-your-3d-prints/

Adding threads to your 3D prints is a life-changing feature, but obviously there are a lot of trade-offs and considerations when deciding on how to go about this exactly. Between …read more (https://hackaday.com/2025/01/11/comparing-ways-to-add-threads-to-your-3d-prints/)

In Praise of Simple Projects
https://hackaday.com/2025/01/11/in-praise-of-simple-projects-2/

Hackaday was at Chaos Communication Congress last week, and it’s one of those big hacker events that leaves you with so much to think about that I’m still processing it. …read more (https://hackaday.com/2025/01/11/in-praise-of-simple-projects-2/)