Gray Matter On A Chip: Building An Artificial Brain With Luminol

Ever wondered if you could build a robot controlled by chemical reactions? [Marb] explores this wild concept in his video, merging chemistry and robotics in a way that feels straight out of sci-fi.…

How Corroded Can A Motherboard Be?

We will admit it. If we found a 386 motherboard as badly corroded as the one [Bits und Bolts] did, we would trash it—not him, though. In fact, we were surprised when he showed it and said he had al…

Keebin’ With Kristina: The One With The Folding Keyboard Mod

Let’s face it, failed Kickstarters are no good. But they can spark good things, like real versions of technologies that might have actually been faked for the platform. A touchscreen mouse, f…

A Brief History Of Teleportation

OK, I know. We don’t have practical teleportation. But that hasn’t stopped generations of science fiction authors and movie makers from building stories around it. If you ask most ordin…

Cranking Up The Detail In A Flight Simulator From 1992

Nostalgia is a funny thing. If you experienced the early days of video games in the 1980s and 90s, there’s a good chance you remember those games looking a whole lot better than they actually…

Exercise Wheel Tracker Confirms Suspicions About Cats

What do cats get up to in the 30 minutes or so a day that they’re awake? Being jerks, at least in our experience. But like many hackers, [Brent] wanted to quantify the activity of his cat, an…

Gas Gauge Upgrade Keeps VW Restoration Classy

Getting every detail perfectly right is often the goal in automotive restorations, and some people will go to amazing lengths to make sure the car looks and acts just like it did when it rolled off…

LongChat For Ham Radio

There was a time when ham radio operators were known for having long conversations over the radio — rag chewing, as they called it. A new program, LongChat, is a new entry into the ham radio …

Rolling Your Own Ball Screws

We’ve got mixed feelings about a new video from [AndysMachines] that details how he makes custom ball screws. On the one hand, there’s almost zero chance that we’ll ever have an o…

Runway-to-Space No More, Reaction Engines Cease Trading

It’s not often that the passing of a medium sized company on an industrial estate on a damp and soggy former airfield in southern England is worthy of a Hackaday mention, but the news of hype…

FLOSS Weekly Episode 812: Firefox And The Future

This week, Jonathan Bennett and David Ruggles chat with Sylvestre and Brian about Firefox! What’s up in the browser world, what’s coming, and what’s the new feature for Firefox on…

Hack On Self: Headphone Friend

In the last two articles, I talked about two systems relying on audio notifications. The first one is the Alt-Tab annihilator system – a system making use of my window monitoring code to angr…

Did You Know YoSys Knows VHDL Too?

We’ve been fans of the Yosys / Nextpnr open-source FPGA toolchain for a long while now, and like [Michael] we had no idea that their oss-cad-suite installer sets up everything so that you can write…

The London Underground Is Too Hot, But It’s Not An Easy Fix

The London Underground is an iconic piece of Victorian era engineering. What started in 1863 quickly became a core piece of infrastructure that would define the modern character of the British capi…

Sniffing Around Inside A ThinkPad Battery

For most people, a battery pack that’s misbehaving simply means it’s time to get a new battery. But when the battery in their ThinkPad wasn’t able to muster up more than 20 minute…

Fluke Meter Fails With A Simple Problem

[TheHWcave] found a Fluke 27 multimeter that looked like it had had quite a rough life. At first, the display flashed an overload indicator until he gave it a good smack—or, as he likes to call it,…

Fail Of The Week: The SMD Crystal Radio That Wasn’t

The crystal radio is a time-honored build that sadly doesn’t get much traction anymore. Once a rite of passage for electronics hobbyists, the classic coil-on-an-oatmeal-carton and cat’s…

A Month Without IPV4 Is Like A Month Without…

Recently, there was a Mastodon post from [nixCraft] challenging people to drop their NAT routers for the month of November and use only IPv6. What would it be like to experience “No NAT Novem…