Building an Organic Flow Battery Based on Green Tea
https://hackaday.com/2026/06/17/building-an-organic-flow-battery-based-on-green-tea/

As simple of a concept flow batteries are, the used chemicals can still be somewhat problematic in the context of a school experiment. To this end [Markus Bindhammer] decided to …read more (https://hackaday.com/2026/06/17/building-an-organic-flow-battery-based-on-green-tea/)

An Orbital StormWall Could Mitigate The Next Carrington Event
https://hackaday.com/2026/06/17/an-orbital-stormwall-could-mitigate-the-next-carrington-event/

The Carrington Event was the most intense geomagnetic storm ever recorded. In September 1859, auroras were visible as close to the equator as Columbia and some telegraph stations were severely …read more (https://hackaday.com/2026/06/17/an-orbital-stormwall-could-mitigate-the-next-carrington-event/)

Ask Hackaday: What Ever Happened to the Hero Nerd?
https://hackaday.com/2026/06/17/ask-hackaday-what-ever-happened-to-the-hero-nerd/

Knowing absolutely nothing about you other than the fact that you’re currently reading Hackaday, I can predict with a high degree of certainty that we’re both fond of at least …read more (https://hackaday.com/2026/06/17/ask-hackaday-what-ever-happened-to-the-hero-nerd/)

Skip the Embedded Filesystem with the TAR-like UTFS Format
https://hackaday.com/2026/06/17/skip-the-embedded-filesystem-with-the-tar-like-utfs-format/

If you need to store some data on a resource-constrained embedded platform, the prospect of dragging in a dependency for something like FAT filesystem access to flash or other storage …read more (https://hackaday.com/2026/06/17/skip-the-embedded-filesystem-with-the-tar-like-utfs-format/)

FLOSS Weekly Episode 871: Rust Won’t Save You
https://hackaday.com/2026/06/17/floss-weekly-episode-871-rust-wont-save-you/

This week Jonathan chats with Florian Gilcher about Rust and Ferrous Systems! How have we gotten here, what’s coming next, and what’s new in the Rust world? Watch to find …read more (https://hackaday.com/2026/06/17/floss-weekly-episode-871-rust-wont-save-you/)

2026 Frikkin Lasers Contest: Steampunk, 360 O-Scope Does it with Tubes
https://hackaday.com/2026/06/17/2026-frikkin-lasers-contest-steampunk-360-o-scope-does-it-with-tubes/

Audiophiles all know everything sounds better fed through vacuum tubes, but did you know visualizers look better with them, too? That’s what we’re forced to conclude looking at the Tachyscope …read more (https://hackaday.com/2026/06/17/2026-frikkin-lasers-contest-steampunk-360-o-scope-does-it-with-tubes/)

Building And Testing A DIY Robot Actuator
https://hackaday.com/2026/06/17/building-and-testing-a-diy-robot-actuator/

[Brandon Lai] is hoping to build a humanoid robot. To that end, he’s going to need some actuators, and decided to design his own. His second pass at this turned …read more (https://hackaday.com/2026/06/17/building-and-testing-a-diy-robot-actuator/)

Solid-State Batteries Take to the Sky
https://hackaday.com/2026/06/17/solid-state-batteries-take-to-the-sky/

There always seem to be a handful of revolutionary technologies perpetually out of reach: fusion energy, quantum computers, and full self-driving cars are always in this list, and it seems …read more (https://hackaday.com/2026/06/17/solid-state-batteries-take-to-the-sky/)