Collaborate Disseminate
[Hank Green] posted an interesting video about the first liquid mirror telescope from back in the 1850s. At the time, scientists were not impressed. But, these days, people are revisiting …read more Continue reading Toxic Telescope Makes You Mad as a Hatter
We know many people who put much effort into building model train setups. But [Rambros] has an entire set 3D printed, and the files are open source, so you can …read more Continue reading I’ve Been Printing on the Dragon Railroad…
When [bdk6] tried painting aluminum for electronic projects, he found it didn’t tend to stay painted. It would easily scratch off or, eventually, even flake off. The problem is the …read more Continue reading Old Ham Wisdom Leads to Better Aluminum Painting
We’ve always known, in theory, there are ways to bend wood, but weren’t really clear on how it worked. Now that we’ve seen [Totally Handy]’s recent video, we’ve learned a …read more Continue reading Bend it Like a Carpenter
It looks like an ordinary toolbox, but when you open up the Arduino Launch Control System, you’ll find a safe method for triggering model rocket launches. The system uses two …read more Continue reading Arduino is out to (Rocket) Launch
If you’ve been looking for a practical example of using GNU Radio, you should check out [Daniel Estévez’s] work on decoding telemetry captured from the Lunar Flashlight cubesat. The cubesat …read more Continue reading Listening to a Flashlight — Lunar Flashlight
Mattel holds a fond place in most people’s hearts as they made many of the toys we played with as kids. You might remember the Thingmaker, which was essentially an …read more Continue reading Ask Hackaday: Do Kids Need 3D Printers?
Like most of us, [Arnov] used a spare coffee mug to hold pens on his desk. But there has to be a better way, right? Surely if you build a …read more Continue reading PCB Pen Holder is Over the Top
Sony used to sell digital cameras that recorded on actual floppy disks. We’ve come a long way, but [Mathieu] put a floppy in a digital camera recently for an entirely …read more Continue reading Floppy Photog: Making an IR Filter From a 3.5″ Disk
If you’ve ever dealt with RF circuits, you probably have run into Q — a dimensionless number that indicates the ratio of reactance to resistance. If you ever wanted to …read more Continue reading Q Meter Measures… Q, of Course