If you are a radio enthusiast of A Certain Age, you may well go misty-eyed from time to time with memories of shortwave listening in decades past. Countries across the world operated their own prop…

Watering the garden or the lawn is one of those springtime chores that is way more appealing early in the season than later. As the growing season grinds along, a chore that seemed life-giving and …

The Smith chart is a staple for analyzing complex impedance. [W2AEW] notes that a lot of inexpensive test gear like the MFJ-259B gives you complex readings, but fails to provide the sign of the ima…

If you’re really interested in aircraft and flying, there are many ways to explore that interest. There are models of a wide range of sizes and complexities that are powered and remote-contro…

You’ll often hear about some study in the media and then — on examination — find it doesn’t really apply to your situation. Sure, substance X causes cancer in rats, but they…

We all love new tech. Some of us love getting the bleeding edge, barely-on-the-market devices and some enjoy getting tech thirty years after the fact to revel in nostalgia. The similarity is that w…

As you may have heard, the U.S. is in the grips of an opioid epidemic. Overdose deaths from heroin, oxycontin, and fentanyl have quadrupled since 1999. The key to detecting opoid overdose before it…

The dumbest thing this week is Uber’s flying car concept of the future. The braintrust at Uber envisions a world of skyports, on rooftops or on the ground that will handle 200 takeoffs and la…

In a recently updated post, [Codex99] has a detailed history of the HP-35 pocket calculator. Unless you are a certain age, you probably don’t think much of calculators. They are cheap and not…

If you’re the kind of person who has friends, and/or leaves the confines of the basement from time to time, we hear that these “Escape Rooms” are all the rage. Basically you get l…

Are you putting ESP8266s in all your projects these days, whether they need one or not? We don’t blame you. These boards are cheap, tiny, oh and they have WiFi. If you want to spend less time…

The Flite Test crew is well known for putting some crazy flying contraptions together. They’ve outdone themselves this time with a flying IKEA chair. This build began with [Josh] issuing a ch…

At this point, you’ve almost certainly heard the tale of Eric Lundgren, the electronics recycler who is now looking at spending 15 months in prison because he was duplicating freely available…

Give a man a fishing lure, and he catches fish until he loses the lure. Give a fisherman a 3D-printer, and he can print all the fishing lures he wants, especially replicas of those that are too val…

Maker Faire Bay Area is this weekend, and the Hackaday and Tindie crew are getting ready to jack some cupcake cars. The Bay Area Maker Faire is one of the greatest gatherings of all the cool people…

Hackaday.io user [Prof. Fartsparkle] aims to impress us again with MoAgriS, a stripped-down rig for bringing crops indoors and providing them with all they need. This project is an evolution of the…

From the gaping maw of the infosec Twitterverse comes horrifying news. PGP is broken. How? We don’t know. When will there be any information on this vulnerability? Tomorrow. It’s the mo…

Mini indoor drones have become an incredibly popular gift in the last few years since they’re both cool and inexpensive. For a while they’re great fun to fly around, until the inevitabl…

If you’be been hacking and making long enough, you’ve probably run into a situation where you realize that a previous project could be improved with the addition of technology that simp…

We were wondering what [Circuitbeard] has been up to lately. Turns out he’s been building a mini pinball cabinet to add to his arcade of self-built games. [Circuitbeard] was forced to break o…