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The Thermochromic Display You Didn’t Know You Needed
We love unique ways of displaying data here at Hackaday, and this ingenious thermochromic display created by [Moritz v. Sivers] more than fits the bill. Using sheets of color changing liquid crystals...
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Warshipping: A Free Raspberry Pi In The Mail Is Not Always A Welcome Gift
Leading edge computer security is veiled in secrecy — a world where novel attacks are sprung on those who do not yet know what they need to protect against. Once certain tactics have played out within...
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Apollo’s PLSS And The Science Of Keeping Humans Alive In Space
Ever since humans came up with the bright idea to explore parts of the Earth which were significantly less hospitable to human life than the plains of Africa where humankind evolved, there’s been a...
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A Friendly Reminder That You Might Be In Danger
Product recalls are one of those things that most people don’t pay attention to until things get really bad. If it’s serious enough for somebody to get hurt or even die, then the media will pick it up,...
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Fail Of The Week: How Not To Light Pipe
You’d think that something made out of glass and epoxy would transmit a decent amount of light. Unfortunately for [Jeremy Ruhland], it turns out that FR4 is not great light pipe material, at least in...
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Game On with these Open Source Arduino Buzzers
Planning a game of Hacker Jeopardy at your next meetup? You’re going to want some proper buzzers to complete the experience, but why buy when you can build? [Flute Systems] has released an open source...
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Putting The Coanda Effect To Work On A Quadcopter
The Coanda effect is an aerodynamic principle regarding the way fluids tend to flow along curved surfaces. This can be used to direct a flow, and [Tom Stanton] wanted to try out its application on a...
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Echos of the Cold War: Nuclear-Powered Missiles Have Been Tried Before
On August 8th, an experimental nuclear device exploded at a military test facility in Nyonoksa, Russia. Thirty kilometers away, radiation levels in the city of Severodvinsk reportedly peaked at twenty...
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Dirty Tricks For 6502 Programming
We know the 6502 isn’t exactly the CPU of choice for today’s high-performance software, but with the little CPU having appeared in so many classic computers — the Apple, the KIM-1, The Commodores, to...
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Rocket Jacket Looks Sharp For CCCamp 2019
Making your own clothing can be fun, but it’s even better if you can throw some LEDs into the mix and give a new meaning to the term “glow up”. [arturo182] did just that with this custom rocket jacket...
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Sushi Roll Helps Inspect Your CPU Internals
[Gamozolabs’] post about Sushi Roll — a research kernel for monitoring Intel CPU internals — is pretty long. While we were disappointed at the end that the kernel’s source is not exactly available due...
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Launching a Custom Kerbal Panel
[Matthew Peverill] is a busy PhD student who loves to make time for a little Kerbal Space Program. He was tired of using such pedestrian controls as a keyboard and mouse for such important work, and...
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Fantastic Micrometeorites And Where To Find Them
Space is very much the final frontier for humanity, at least as far as our current understanding of the universe takes us. Only a handful of countries and corporations on Earth have the hardware to...
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Largest Chip Ever Holds 1.2 Trillion Transistors
We get it, press releases are full of hyperbole. Cerebras recently announced they’ve built the largest chip ever. The chip has 400,000 cores and contains 1.2 trillion transistors on a die over 46,000...
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A Cheap And Cheerful Geiger Counter Build
Hackers often have broad interests across the sciences, of which nuclear topics are no exception. The Geiger counter remains a popular build, and could be a handy tool to have in a time of rising...
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Electric Dump Truck Produces More Energy Than it Uses
Electric vehicles are everywhere now. It’s more than just Leafs, Teslas, and a wide variety of electric bikes. It’s also trains, busses, and in this case, gigantic dump trucks. This truck in...
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Returning Digital Watches To the Analog Age: Enter The Charliewatch
The Charliewatch by [Trammell Hudson] is one of those projects which is beautiful in both design and simplicity. After seeing [Travis Goodspeed]’s GoodWatch21 digital watch project based around a Texas...
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Rocket Lab Sets Their Sights on Rapid Reusability By Snagging Rockets in...
Not so very long ago, orbital rockets simply didn’t get reused. After their propellants were expended on the journey to orbit, they petered out and fell back down into the ocean where they were...
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Qt Arrives For Small Computers
There was a time when writing embedded systems meant never having to deal with graphical user interfaces, and spending long hours trying to free up a dozen bytes of ROM to add a feature. Nowadays, an...
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Easy Direction Finding Thanks To Quad SDRs
Direction finding has long been a pastime of the ham radio community. Fox hunts and other DF events have entertained many, as they swept their antennas hunting for a transmitter. As with rock and roll...
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