We all know what a short circuit is, but [Clement Zheng] and [Manasvi Lalwani] want to introduce you to the shirt circuit. Their goal is to help children, teachers and parents explore and learn ele…

The Flashing Light Prize is on right now, and that means all our favorite geeks and YouTubers are aspiring to what could be done with a 555. The rules are simple: turn a light bulb on and off someh…

In May of 2000, then-President Bill Clinton signed a directive that would improve the accuracy of GPS for anyone. Before this switch was flipped, this ability was only available to the military. What ...

Our commenteers have all said good things about the open-source TS100 soldering iron pencil: things like “it solders well”. But we’ve all got soldering irons that solder well. Wha…

DEF CON is canceled again this year, and this time that statement is at least partially true. There will be no special official badges this year. There is no challenge or mystery embedded in the of…

One of the things that makes Linux and Unix-like systems both powerful and frustrating is that there are many ways to accomplish any particular goal. Take something simple like running a bunch of c…

We’re now living in the golden age of PCB art. Over the last year or so, the community has learned to manipulate silk screen, copper, and solder mask layers into amazing pieces of craftsmansh…

There is one constant in the world of hardware hacker's workshops, be they a private workshop in your garage or a public hackspace, and it goes something like this:
Everybody's a safety expert in wha...

It seems like you hear it every year -- a late or early frost threatens some crop or another, forcing farmers to take drastic action to avoid financial ruin. But even when the weather cooperates on a ...

[Scott] had a simple problem - he was tired of leaning over his work bench to change the volume on his speakers. He desired a system that would readily allow him to switch the speakers on and off from...

If there’s a chemical with a cooler name than “fuming nitric acid,” we can’t think of it. Nearly pure nitric acid is useful stuff, especially if you’re in the business…

[Martin Raynsford] is a prolific project maker, especially when it comes to using a laser cutter. These laser-cut token counters for the board game Tigris & Euphrates demonstrate some clever desig...

In the 1950s, a nuclear-powered future seemed a certainty. The public had not been made aware of the dangers posed by radioactive material, any large-scale accidents involving nuclear reactors had eit...

[PJ Evans] had a ruined game cartridge lying around, just waiting for a project. As Activision’s F-14 Tomcat game for the Atari 2600 console, it seemed ripe for use as a project enclosure of some so...

[Frank Howarth] has a shop most woodworkers would kill for, stuffed with enough tools to equip multiple hackspaces -- four radial-arm saws alone! But while the CNC router in the middle of the shop, la...

If you’ve ever looked at the server logs of a computer that lives full-time on the Internet, you know it’s a rough world out there. You’ll see hundreds of attempts per day to brea…

With so many ways to capture images from paper, do we really need another one? Especially one that takes 15 minutes to capture a 128x128 pixel image? Probably not, but building a single-pixel RGB scan...

[Radu Motisan] Has entered a cool project into the Best Product portion of this year's Hackaday Prize. It's called an Open Source IoT Dosimeter. It has a Geiger tube for detecting radiation levels alo...

In what may be the strangest retrocomputing project we’ve seen lately, you can now access a virtual 6502 via Amazon’s Lambda computing service. We don’t mean there’s a web p…

How quickly would you say yes to being granted the power to control lightning? Ok, since that has hitherto been impossible, what about the lesser power of detecting and tweeting any nearby lightnin…