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Among all the amazing technologies that were promised to us, there is one that is much more egregious than the lack of flying cars and real hovering hoverboards: the lack …read more

Numbers stations are a weird phenomenon where odd voices read out long strings of numbers or random codewords to the confusion of the vast majority of the listening audience. If …read more

The study of audio technology has a lot of fascinating branches, and one or two of them even take the curious engineer not into electronics but into architecture. There’s the …read more

Video may have killed the radio star, but cell phones and smart phones all but killed the pager. They still exist, of course, but only in very niche applications. [João …read more

The actions of certain large social networks have recently highlighted how a small number of people possess significant power over the masses and how this power is sometimes misused. Consequently, …read more

For months, there has been a rising fear that we may have to say farewell to the Voyager 1 spacecraft after it began to send back garbled data. Now, in …read more

Full disclosure: [Óscar] isn’t nine now, but he was in 1988 when he wrote LOCS, a drawing program in Z80 assembly modeled after Logo. You can see a demo of …read more

If you’re a child, there are certain things you’re taught even though they’re probably not directly relevant to your life. We teach young kids all about dinosaurs, and we teach …read more

Thanks to 3D printing, most of us are familiar with the concept of additive manufacturing, and by extension, subtractive manufacturing. But what is it when you’re neither adding material nor …read more

For optical microscopes, light is everything. If you don’t have a good amount of light passing through or bouncing off your sample, you’ve got nothing for your eyeballs or a …read more

Ham radio is having a bit of a resurgence these days, likely due to awards programs like Parks on the Air (POTA) and Summits on the Air (SOTA), which encourage …read more

These days, unit conversions aren’t something we have to worry about so much. If you’re sitting at a computer, you can usually just tap away in your browser to get …read more

When you think about hardware description languages, you probably think of Verilog or VHDL. There are others, of course, but those are the two elephants in the room. Do we …read more

We love [Aaed Musa]’s TOPS (Traverser of Planar Surfaces) which is a robot dog with custom-made actuators. The DIY is very strong with this project, and the 3D-printed parts alone …read more

If you hang out on certain kinds of sites, you can find huge-capacity USB drives and high-power yet tiny solar panels, all at shockingly low prices. Of course, the USB …read more

At this point, most readers will be familiar with fused deposition modeling (FDM) 3D printers, and how a plastic filament is pushed through a heater and deposited as liquid through …read more

Join Hackaday Editors Elliot Williams and Tom Nardi as they go over their favorite hacks and stories from the past week.  This episode starts off with an update on Hackaday …read more

The radio frequency world is full of mysteries, some of which seem to take a lifetime to master. And even then, it seems like there’s always something more to learn, …read more

OK, that headline is a bit of a cheap shot. But if you run the curl binary that Apple ships, you’re in for a surprise if you happen to use …read more

CATS is a new communication and telemetry standard intended to surpass the current Automatic Packet Reporting System (APRS) standard by leveraging modern, super-cheap Frequency Shift Keying (FSK) transceivers rather than …read more