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[Paul] likes his piano, but he doesn’t know how to play it. The obvious answer: program an Arduino to do it. Some aluminum extrusion and solenoids later, and it was …read more

Anyone who has ever had the misfortune of a blown head gasket knows that the old saying “oil and water don’t mix” is only partially true. When what’s coming out …read more

Sometimes you come across a purported scientific paper that makes you do a triple-check, just to be sure that you didn’t overlook something, as maybe the claims do make sense …read more

Virtual Reality in woodworking sounds like a recipe for disaster—or at least a few missing fingers. But [The Swedish Maker] decided to put this concept to the test, diving into …read more

Typography enthusiasts reach a point at which they can recognise a font after seeing only a few letters in the wild, and usually identify its close family if not the …read more

Most of us see the world in a very narrow band of the EM spectrum. Sure, there are people with a genetic quirk that extends the range a bit into …read more

Determining that a cable has a broken conductor is the easy part, but where exactly is the break? In a recent video, [Richard] over at the Learn Electronics Repair channel on …read more

How do you reconcile your love for hacking projects together with your love for that someone special? By making him or her a DIY masterpiece of blinking red LEDs, but …read more

For those who’ve never bitten the Apple, the PowerMac G4 was a blue-tinted desktop Macintosh offered from 1999 to 2004. At the time, the machines were plenty fast — being …read more

With today’s technology, emulating video game consoles from the 90s or before is trivial. A Raspberry Pi and a controller of some sort is perhaps the easiest and simplest way …read more

Starting a new microcontroller project can be pretty daunting. While you have at least a rough idea of where you want to end up, there are so many ways to …read more

On February 13th of 2023, ARCA of the kilometre cubic neutrino telescope (KM3NeT) detected a neutrino with an estimated energy of about 220 PeV. This event, called KM3-230213A, is the …read more

[Chris Borge] was doing some fine tapping operations, and wanted a better way to position his workpieces. This was critical to avoid breaking taps or damaging parts. To this end, …read more

Good news for everyone who cannot get enough from improbably shaped boats that get referred to as a bench: the current owner (NTI Group) of the copyright has announced that …read more

Portability has been a goal of a sizable section of the computing world for many decades now. While the obvious products of this are laptops, there are a number of …read more

It’s Valentine’s Day today, and what better way to capture your beloved’s heart than by settling down together and listening to the Hackaday Podcast! Elliot Williams is joined by Jenny …read more

Home Depot has at times sold a neat spiral lamp that relies on LEDs to supply its soothing white glow. When [Craig Lindley] saw some modified versions on YouTube he …read more

There’s a constant tension between governments looking for easier ways to catch criminals, companies looking to actually protect their users’ privacy, and individuals who just want their data to be …read more

Fair warning: watching this hybrid manufacturing method for gear teeth may result in an uncontrollable urge to buy a fiber laser cutter. Hackaday isn’t responsible for any financial difficulties that …read more

Air raid sirens have an important job to do, and have been a critical piece of public safety infrastructure in times of geopolitical turmoil. They sound quite unlike anything else, …read more