It's that time of year again. The nights are getting longer and the leaves are turning. The crisp fall air makes one's thoughts turn to BattleBots: pumpkin-skinned BattleBots.

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[caption id="attachment_229131" align="alignleft" width="168"] Ruled Hyperboloid CC Prof. William McCallum[/caption]

Everyone knows you can't visibly bend light over short distances in free air. Or c...

Everybody loves plasma globes, but if you are like [zrgzhv], building them as large as possible is the challenge! Definitely a beautiful project, at 7 feet long and 1 foot in diameter, this monster t...

It’s late, and you’re lost in a sea of cars trying to remember where you parked. If only your vehicle had a glow-in-the-dark antenna to make it easier to find, you wouldn’t be in …

Most of the entries in the Hackaday Prize Assistive Technology challenge solve an obvious problem. 3D printed prosthetics, a computer mouse for the mouth, and text to speech systems all have obvious u...

Not sure where the potatoes were sneaking in, [24Gospel] did what any decent hacker would do: strapped a camera to a Raspberry Pi, hacked a bit on OpenCV, and built himself a potato detection syste…

[Colin] tells us it all started with [Benjamin Franklin]'s battery of capacitors. It was a bunch of leyden jars hooked together in series and there wasn't even chemistry involved yet, but the nomencla...

George [Geohot] Hotz has thrown in the towel on his “comma one” self-driving car project. According to [Geohot]’s Twitter stream, the reason is a letter from the US National Highw…

Most data storage devices we currently use are, at their core, two-dimensional. Sure, a hard drive might have multiple platters, but the data storage takes place on a flat surface. Even an optical …

When you think of living off the grid, you often think of solar power. But if you've got a good head, and enough flow, water power can provide a much more consistent flow of electrons. All it requires...

How many integrated circuits do you need to build up a power supply that'll convert mains AC into a stable DC voltage? Would you believe, none? We just watched this video by [The Current Source] (embe...

Sometimes it's not so much what you put together, it's how you use it. The folks at Adafruit have put up a project on how to dress up your drone with 'UFO lights' just in time for Halloween. The proj...

We see a lot of old radio restoration projects around here, and we have to admit to having mixed emotions about some of them. It seems a shame to go through the effort to lovingly restore a vintage…

Taking a stroll through the woods in the midst of autumn is a stunning visual experience. It does, however, require one to live nearby a forest. If you are one of those who does not, [Koen Hufkens] ha...

Servos are pretty basic fare for the seasoned hacker. But everyone has to start somewhere, and there's sure to be someone who'll benefit from this primer on servo internals. Who knows - maybe even the...

Sometimes the technology part of a project isn't the hard part. It is having an idea for something both useful and doable. Sure, a robot butler that would do your cleaning and laundry would be useful,...

[Fuzzy Wobble] and [Amy Wang]’s Deep Space Settlers project is a one-of-a-kind re-invention of the popular board game Settlers of Catan, and showcases the polished results that are possible w…

Projection mapping is pretty magical; done well, it's absolutely miraculous when the facade of a building starts popping out abstract geometric objects, or crumbles in front of our very eyes. "Dynamic...

Australian roboticists from the Queensland University of Technology have developed a prototype agricultural robot that uses machine vision to identify both weed and crop plants before either uproot…

Okay, we haven’t even hit Halloween yet, but if you’re planning some kind of holiday project, now’s a good time to start ordering your parts, especially if you’re designing …