Once upon a time, ham radio was all about CW and voice transmissions and little else. These days, the hobby is altogether richer, with a wide range of fancy digital data modes to play with. [KM6LYW Radio] has been tinkering in this space, and whipped up a compact ham radio data rig that you can […]
The 600W is not the output rating, despite all appearances. (Credit: Denki Otaku, YouTube) We have seen many scam USB chargers appear over the years, with a number of them being enthusiastically ripped apart and analyzed by fairly tame electrical engineers. Often these are obvious scams with clear fire risks, massively overstated claims and/or electrocution […]
When taking pictures of the night sky, any noise picked up by the sensor can obscure the desired result. One major cause of noise in CMOS sensors is heat—even small amounts can degrade the final image. To combat this, [Francisco C] of Deep SkyLab retrofitted an old Canon T1i DSLR with an external cooler to […]
The tides! Such a unique thing, because on Earth, we don’t just have oceans full of liquid water—we also have a big ol’ moon called Moon to pull them around. You might like to keep track of the tides; if so, this tide clock from [rabbitcreek] could come in handy. The motions of the tides […]
If you need to create a high vacuum, there are basically two options: turbomolecular pumps and diffusion pumps. Turbomolecular pumps require rotors spinning at many thousands of rotations per minute and must be carefully balanced to avoid a violent self-disassembly, but diffusion pumps aren’t without danger either, particularly if, like [Advanced Tinkering], you use mercury […]
Elliot Williams and Al Williams got together to share their favorite hacks of the week with you. If you listen in, you’ll hear exciting news about the upcoming SuperCon and the rare occurrence of Al winning the What’s That Sound game. For hacks, the guys talk about the IEEE’s take on the “best” programming languages […]
Finding, collecting, and restoring vintage tech is the rewarding pastime of many a Hackaday reader. Working with old-school gear can be tough, though, when documentation or supporting resources are hard to find. If you’re in need of an old manual or a little scrap of software, you might find the Vintage Technology Digital Archive (VTDA) […]
This week a reader sent me a story about a CVE in Notepad++, and something isn’t quite right. The story is a DLL hijack, a technique where a legitimate program’s Dynamic Link Library (DLL) is replaced with a malicious DLL. This can be used for very stealthy persistence as well as escalation of privilege. This […]
While not everyone agrees on the installation of wind turbines in their proverbial back yards, one thing not up for debate is that there is a drive to build them bigger, and bigger. Big turbines means big blades, and big blades need to be transported… somehow. If air freight is going to stay relevant to […]
The problem with air quality is that you can’t really tell how good or bad it is just by looking…unless it’s really bad, that is. It’s usually more helpful to have some kind of sensor that can tell you what the deal is. To that end, [Arnov Sharma] built a neat air quality monitor with […]