Although Charles Hall conducted his first successful run of the Hall-Héroult aluminium smelting process in the woodshed behind his house, it has ever since remained mostly out of reach of …read more (https://hackaday.com/2025/07/22/the-hall-heroult-process-on-a-home-scale/)

Nylon-Like TPU Filament: Testing CC3D’s 72D TPU
https://hackaday.com/2025/07/22/nylon-like-tpu-filament-testing-cc3ds-72d-tpu/

Another entry in the world of interesting FDM filaments comes courtesy of CC3D with their 72D TPU filament, with [Dr. Igor Gaspar] putting it to the test in his recent …read more (https://hackaday.com/2025/07/22/nylon-like-tpu-filament-testing-cc3ds-72d-tpu/)

An Open Source Flow Battery
https://hackaday.com/2025/07/23/an-open-source-flow-battery/

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/)