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How To Run a Clock for a Century
What’s going to keep a clock running for a century, unattended? Well, whatever’s running it will have to sip power, and it’s going to need a power source that will last a long time. [Jan Waclawek] is...
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Hackaday Links: August 5, 2018
Here’s something of historical interest. The daughter of Terry Holdt, project manager for the 6502, cleaned out a garage and found shelves full of MOS Technology binders, test results, notes,...
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A Plasma Speaker Using A TL494
We’re used to loudspeakers as circular components with a paper cone and a big magnet inside which is suspended a coil that is connected to our audio amplifier. But moving-coil speakers are not the...
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DSO Nano 3 Review: a 20 MHz Pocket ‘Scope For Not A Lot
The oscilloscope is an essential tool of any electronics bench, and it is also an instrument whose capabilities have expanded exponentially over the decades. Your entirely analogue CRT ‘scope of a few...
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The “P Cell” is Exactly What You Might Suspect
[Josh Starnes] had a dream. A dream of a device that could easily and naturally be activated to generate power in an emergency, or just for the heck of it. That device takes in urea, which is present...
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VCF West: All The Floptical Disks
Nowadays, if you want to transfer a file from one computer to another, you’d just send it over the network. In those rare occasions where that won’t work, a USB thumb drive will do. It wasn’t always...
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Dog-Or-Catapult Controls The Speed Of The Feed
[NathanKing] has a cute, rambunctious pupper who eats way too fast for her own good. He’s tried various distribution methods intended to get her to slow down, but she’s just too excited to eat....
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FxSolver is a Math Notebook for Engineers
If you like to rely on the web to do your electronics and computer math, you’ll want to bookmark FxSolver. It has a wide collection of formulae from disciplines ranging from electronics, computer...
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Recorded Programming — Thanks to Bing Crosby
If you look up Bing Crosby in Wikipedia, the first thing you’ll notice is his real name was Harry. The second thing you’ll read, though, is that he is considered the first “multimedia star.” In 1948,...
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Video Quick Bit: Power Harvesting Hacks
[embedded content] Majenta Strongheart is back again, this time taking a look at some of the coolest power harvesting projects in this year’s Hackaday Prize. The entire idea of the Power Harvesting...
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Remote Controlled Electric Snowblower Sports FPV For Safety
As summer scorches the northern hemisphere, here’s something to cool your thoughts: winter is only four months away. And with it will come the general misery and the proclamations that “It’ll never be...
View ArticleVCF West: Homebrew Lisp Machines And Injection Molded PDPs
Someone walks into the Vintage Computer Festival and asks, ‘what’s new?’. It’s a hilarious joke, but there is some truth to it. At this year’s Vintage Computer Festival West, the exhibit hall wasn’t...
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Failed Tool Turned Exploded Wall Art
Few things hit a hacker or maker harder than when a beloved tool goes to that Big Toolbox In The Sky. It can be hard to trash something that’s been with you through countless repairs and teardowns,...
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Ask Hackaday: Is There a Common Mechanical Parts Library?
Like many stories, this one started on the roof. This particular roof is located in Michigan and keeps the rain and snow off of the i3Detroit hackerspace. Being an old industrial building, things up...
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Regenerative Braking Charges Your Phone
Way back when, if you wanted lights on your bike, you’d head off to the local bicycle store and purchase yourself a bottle dynamo. This would consist of a magneto that was attached to a bracket on the...
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Printed Part Gets Classic Truck Rolling
When working on classic vehicles, and especially when modifying them outside of their stock configurations, things can get expensive. It’s a basic principle in economics: the rarer something is the...
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Electric Bike From The Ground Up
Electric vehicles are getting more traction these days, but this trend is rolling towards us in more ways than just passenger vehicles. More and more bikes are being electrified too, since the cost of...
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Facebook Wants to Teach Machine Learning
When you think of technical education about machine learning, Facebook might not be the company that pops into your head. However, the company uses machine learning, and they’ve rolled out a six-part...
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Using Acoustic Levitation for Applications Going Way Beyond Novelty
[embedded content] We’ve all seen acoustic levitation, it’s one of the scientific novelties of our age and a regular on the circuit of really impressive physical demonstrations of science to the...
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Big Power, Little Power, Tiny Power, Zap!
Our Hackaday Prize Challenges are evaluated by a panel of judges who examine every entry to see how they fare against judging criteria. With prize money at stake, it makes sense we want to make sure it...
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