Radio Apocalypse: Survivable Low-Frequency Communication System
https://hackaday.com/2025/11/12/radio-apocalypse-survivable-low-frequency-communication-system/

In the global game of nuclear brinksmanship, secrets are the coin of the realm. This was especially true during the Cold War, when each side fielded armies of spies to …read more (https://hackaday.com/2025/11/12/radio-apocalypse-survivable-low-frequency-communication-system/)

FLOSS Weekly Episode 854: The Big Daddy Core
https://hackaday.com/2025/11/12/floss-weekly-episode-854-the-big-daddy-core/

This week Jonathan and Ben chat with Jason Shepherd about Ocre and Atym.io! That’s the lightweight WebAssembly VM that lets you run the same containers on Linux and a host …read more (https://hackaday.com/2025/11/12/floss-weekly-episode-854-the-big-daddy-core/)

2025 Component Abuse Challenge: Light an LED With Nothing
https://hackaday.com/2025/11/12/2025-component-abuse-challenge-light-an-led-with-nothing/

Should you spend some time around the less scientifically informed parts of the internet, it’s easy to find “Free power” stories. Usually they’re some form of perpetual motion machine flying …read more (https://hackaday.com/2025/11/12/2025-component-abuse-challenge-light-an-led-with-nothing/)

Cheap Multimeter Gets Webified
https://hackaday.com/2025/11/12/cheap-multimeter-gets-webified/

[Mellow Labs] wanted to grab a multimeter that could do Bluetooth. Those are cheap and plentiful, but the Bluetooth software was, unsurprisingly, somewhat lacking. A teardown shows a stock Bluetooth …read more (https://hackaday.com/2025/11/12/cheap-multimeter-gets-webified/)

There’s no Rust on this Ironclad Kernel
https://hackaday.com/2025/11/12/theres-no-rust-on-this-ironclad-kernel/

Rust is the new hotness in programming languages because of how solid its memory protections are. Race conditions and memory leaks are hardly new issues however, and as greybeards are …read more (https://hackaday.com/2025/11/12/theres-no-rust-on-this-ironclad-kernel/)

Installing an 84MB Hard Drive Into a PDP-11/44
https://hackaday.com/2025/11/12/installing-an-84mb-hard-drive-into-a-pdp-11-44/

Over on YouTube [Usagi Electric] shows us how he installed an 84MB hard drive into his PDP-11/44. In the beginning he purchased a bunch of RA70 and RA72 drives and …read more (https://hackaday.com/2025/11/12/installing-an-84mb-hard-drive-into-a-pdp-11-44/)

3D Printed Mail is a Modern Solution to an Ancient Problem
https://hackaday.com/2025/11/13/3d-printed-mail-is-a-modern-solution-to-an-ancient-problem/