Learning About Ground Loop Isolators thanks to a Scam Product
https://hackaday.com/2026/06/15/learning-about-ground-loop-isolators-thanks-to-a-scam-product/

When [Denki Otaku] bought a ¥1,200 (roughly €6.5) XLR ground loop isolator off Japanese Amazon, he initially didn’t suspect that anything was off. Since they’re fairly simple devices, with basically …read more (https://hackaday.com/2026/06/15/learning-about-ground-loop-isolators-thanks-to-a-scam-product/)

Bike-Powered Shredder Makes Short Work of 3D Printer Waste
https://hackaday.com/2026/06/16/bike-powered-shredder-makes-short-work-of-3d-printer-waste/

[Brogan M Pratt] and his students do a lot of 3D printing, and as such found themselves producing a lot of plastic waste. Seeing an opportunity, they built a bike-powered …read more (https://hackaday.com/2026/06/16/bike-powered-shredder-makes-short-work-of-3d-printer-waste/)

Smart Bulb WiFi Server Hosts “Banned” Literature
https://hackaday.com/2026/06/16/smart-bulb-wifi-server-hosts-banned-literature/

Let’s stop for a moment and pause to consider the smart bulb. Imagine going back 20 years and telling yourself that people will be putting computers capable of acting as …read more (https://hackaday.com/2026/06/16/smart-bulb-wifi-server-hosts-banned-literature/)

The Problem of Making a Good Metal-To-Glass Seal
https://hackaday.com/2026/06/16/the-problem-of-making-a-good-metal-to-glass-seal/

If you’ve ever taken a close look at a vacuum tube, you’ll have seen the seals around the pins that keep everything air-tight while providing the the device’s electrical contacts. …read more (https://hackaday.com/2026/06/16/the-problem-of-making-a-good-metal-to-glass-seal/)

Security Camera Gets Several Defensive Upgrades
https://hackaday.com/2026/06/16/security-camera-gets-several-defensive-upgrades/

Ever since the early web, people have been streaming video with inexpensive webcams, and since the advent of the Raspberry Pi and its dedicated camera slot we’ve really seen how …read more (https://hackaday.com/2026/06/16/security-camera-gets-several-defensive-upgrades/)

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/)