Ferrofluid is fun. You’ve probably seen all kinds of demos with it bouncing around in response to magnetic fields, or dancing near a speaker. [beastie417] decided to turn the entertaining …read more (https://hackaday.com/2025/08/06/2025-one-hertz-challenge-an-animated-ferrofluid-display/)

OpenAI Releases gpt-oss AI Model, Offers Bounty For Vulnerabilities
https://hackaday.com/2025/08/06/openai-releases-gpt-oss-ai-model-offers-bounty-for-vulnerabilities/

OpenAI have just released gpt-oss, an AI large language model (LLM) available for local download and offline use licensed under Apache 2.0, and optimized for efficiency on a variety of …read more (https://hackaday.com/2025/08/06/openai-releases-gpt-oss-ai-model-offers-bounty-for-vulnerabilities/)

Automated Rubbish Removal System
https://hackaday.com/2025/08/06/automated-rubbish-removal-system/

The hackers over at [HTX Studio] built a set of twenty trash cans which can automatically catch and remove rubbish. In order to catch trash a bin needs to do …read more (https://hackaday.com/2025/08/06/automated-rubbish-removal-system/)

Sparks Fly: Building a 330 kV Supply from a PC PSU
https://hackaday.com/2025/08/07/sparks-fly-building-a-330-kv-supply-from-a-pc-psu/

If you’re hunting for a bench power supply, you’ll quickly notice options dry up above 48 V or so, and you definitely won’t find a 330 kV supply on the …read more (https://hackaday.com/2025/08/07/sparks-fly-building-a-330-kv-supply-from-a-pc-psu/)

A PC That Uses Hot Coffee As Coolant
https://hackaday.com/2025/08/07/a-pc-that-uses-hot-coffee-as-coolant/

Modern computers generate a great deal of heat when under load, thus we cool them with fans and sometimes even water cooling systems. [Doug MacDowell] figured that water was alright, …read more (https://hackaday.com/2025/08/07/a-pc-that-uses-hot-coffee-as-coolant/)

VRML and the Dream of Bringing 3D to the World Wide Web
https://hackaday.com/2025/08/07/vrml-and-the-dream-of-bringing-3d-to-the-world-wide-web/

You don’t have to be a Snow Crash or Tron fan to be familiar with the 3D craze that characterized the rise of the Internet and the World Wide Web in …read more (https://hackaday.com/2025/08/07/vrml-and-the-dream-of-bringing-3d-to-the-world-wide-web/)

Buying Large LiFePO4 Batteries: How Cheap is Too Cheap?
https://hackaday.com/2025/08/07/buying-large-lifepo4-batteries-how-cheap-is-too-cheap/

It’s a well-known factoid that batteries keep getting cheaper while capacity increases. That said, as with any market that is full of people who are hunting for that ‘great deal’, …read more (https://hackaday.com/2025/08/07/buying-large-lifepo4-batteries-how-cheap-is-too-cheap/)

The 64-Degree Egg, And Other Delicious Variants
https://hackaday.com/2025/08/07/the-64-degree-egg-and-other-delicious-variants/