The flow battery is one of the more interesting ideas for grid energy storage – after all, how many batteries combine electron current with fluid current? If you’re interested in …read more (https://hackaday.com/2025/07/23/an-open-source-flow-battery/)

Annealing in Space: How NASA Saved JunoCam in Orbit Around Jupiter
https://hackaday.com/2025/07/23/annealing-in-space-how-nasa-saved-junocam-in-orbit-around-jupiter/

The Juno spacecraft was launched towards Jupiter in August of 2011 as part of the New Frontiers series of spacecraft, on what would originally have been a 7-year mission, including …read more (https://hackaday.com/2025/07/23/annealing-in-space-how-nasa-saved-junocam-in-orbit-around-jupiter/)

The Death of Industrial Design and the Era of Dull Electronics
https://hackaday.com/2025/07/23/the-death-of-industrial-design-and-the-era-of-dull-electronics/

It’s often said that what’s inside matters more than one’s looks, but it’s hard to argue that a product’s looks and its physical user experience are what makes it instantly …read more (https://hackaday.com/2025/07/23/the-death-of-industrial-design-and-the-era-of-dull-electronics/)

Embedded LEDs for Soft Robots Made from Silicone
https://hackaday.com/2025/07/23/embedded-leds-for-soft-robots-made-from-silicone/

Over on their YouTube channel [Science Buddies] shows us how to embed LEDs in soft robots. Soft robots can be made entirely or partially from silicone. In the video you …read more (https://hackaday.com/2025/07/23/embedded-leds-for-soft-robots-made-from-silicone/)

2025 One Hertz Challenge: 16-Bit Tower Blinks at One Hertz
https://hackaday.com/2025/07/23/2025-one-hertz-challenge-16-bit-tower-blinks-at-one-hertz/

We’ve seen our share of blinking light projects around here; most are fairly straightforward small projects, but this entry to the 2025 One Hertz Challenge is the polar opposite of …read more (https://hackaday.com/2025/07/23/2025-one-hertz-challenge-16-bit-tower-blinks-at-one-hertz/)

Fusing Cheap eBay Find Into a Digital Rangefinder
https://hackaday.com/2025/07/23/fusing-cheap-ebay-find-into-a-digital-rangefinder/

One of the earliest commercially-successful camera technologies was the rangefinder — a rather mechanically-complex system that allows a photographer to focus by triangulating a subject, often in a dedicated focusing …read more (https://hackaday.com/2025/07/23/fusing-cheap-ebay-find-into-a-digital-rangefinder/)

Game dev on iBook G4 with NetBSD
https://hackaday.com/2025/07/23/game-dev-on-ibook-g4-with-netbsd/

What can you do with a laptop enough to drink even in the Puritan ex-colonies? 21 years is a long time for computer hardware– but [Chris] is using his early-2004 …read more (https://hackaday.com/2025/07/23/game-dev-on-ibook-g4-with-netbsd/)

Vibe Coding Goes Wrong As AI Wipes Entire Database
https://hackaday.com/2025/07/23/vibe-coding-goes-wrong-as-ai-wipes-entire-database/