Illustrative models of collinear ferromagnetism, antiferromagnetism, and altermagnetism in crystal-structure real space and nonrelativistic electronic-structure momentum space. (Credit: Libor Šmejkal et al., Phys. Rev. X, 2022)
" data-medium-file="https://hackaday.com/wp-content/uploads/2024/07/ferromagnetism_antiferromagnetism_altermagnetism.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2024/07/ferromagnetism_antiferromagnetism_altermagnetism.png?w=800" tabindex="0" role="button">Magnetic materials are typically divided into ferromagnetic and antiferromagnetic types, depending on their magnetic moments (electron spins), resulting in either macroscopic (net) magnetism or not. Altermagnetism is however a recently …read more (https://hackaday.com/2024/08/01/altermagnetism-in-manganese-telluride-and-others-the-future-of-spintronics/)

Rube Goldberg Floppy Disk Cleaner
https://hackaday.com/2024/08/02/rube-goldberg-floppy-disk-cleaner/

Floppies were once the standard method of information exchange, but decades of storage can render them unreadable, especially if mold sets in. [Rob Smith] wanted to clean some floppies in …read more (https://hackaday.com/2024/08/02/rube-goldberg-floppy-disk-cleaner/)

Getting a Laser Eye Injury and How to Avoid it
https://hackaday.com/2024/08/02/getting-a-laser-eye-injury-and-how-to-avoid-it/

Most people love lasers, because they can make cats chase, read music from a shiny disc, etch and cut materials, and be very shiny in Hollywood blockbusters, even when their …read more (https://hackaday.com/2024/08/02/getting-a-laser-eye-injury-and-how-to-avoid-it/)

This Week in Security: Echospoofing, Ransomware Records, and Github Attestations
https://hackaday.com/2024/08/02/this-week-in-security-echospoofing-ransomware-records-and-github-attestations/

It’s a bit of bitter irony, when a security product gets used maliciously, to pull off the exact attack it was designed to prevent. Enter Proofpoint, and the EchoSpoofing attack. …read more (https://hackaday.com/2024/08/02/this-week-in-security-echospoofing-ransomware-records-and-github-attestations/)

Solar Fountain Aerates Garden Pond
https://hackaday.com/2024/08/02/solar-fountain-aerates-garden-pond/

Sometimes off-the-shelf solutions to a problem don’t meet your expectations. That’s what led [TomGoff] to build his own solar pond fountain. This build features a lot of creative reuse of …read more (https://hackaday.com/2024/08/02/solar-fountain-aerates-garden-pond/)

Hackaday Podcast Episode 282: Saildrones, a New Classic Laptop, and SNES Cartridges are More Than You Think
https://hackaday.com/2024/08/02/hackaday-podcast-episode-282-saildrones-a-new-classic-laptop-and-snes-cartridges-are-more-than-you-think/

In this episode, the CrowdStrike fiasco has Hackaday Editors Elliot Williams and Tom Nardi pondering the fragility of our modern infrastructure. From there the discussion moves on to robotic sailboats, …read more (https://hackaday.com/2024/08/02/hackaday-podcast-episode-282-saildrones-a-new-classic-laptop-and-snes-cartridges-are-more-than-you-think/)

Over-molding Wires with Hot Glue and 3D Printed Molds
https://hackaday.com/2024/08/02/over-molding-wires-with-hot-glue-and-3d-printed-molds/

We’ve said it before and we’ll say it again: water always finds a way in. That’s particularly problematic for things like wire splices in damp environments, something that no amount …read more (https://hackaday.com/2024/08/02/over-molding-wires-with-hot-glue-and-3d-printed-molds/)