3D Printed Key Saves the Day
When [Odin917’s] parents went away on vacation, they took the apartment mailbox key with them. With the mail quickly piling up in the mailbox, he needed to get in there. He could have had the building...
View ArticleStromberg Carlson Charactron Tube
Flat panel TVs have spoiled us. It used to be that a big display took up a lot of room on your desk or living room because of the depth of the CRT’s electron gun. We wonder what the designers of the...
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Prepping For Power Outages
When the mains power goes, we are abruptly brought face-to-face with how many of the devices and services we take for granted rely upon it. Telephones for instance, where once they were attached to the...
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A Gloriously Impractical Electromechanical Display
For this year’s office holiday party, [Gavan Fantom] wanted to do something really special. Coworkers were messing with LEDs to come up with displays and decorations, but they lack that old-school feel...
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Jerri Nielsen: Surviving the Last Place on Earth
There may be no place on Earth less visited by humans than the South Pole. Despite a permanent research base with buildings clustered about the pole and active scientific programs, comparatively few...
View ArticleA Watch Only A Ham Can Use
We’re not sure what to make of this one. With the variety of smartwatches and fitness trackers out there, we can’t be surprised by what sort of hardware ends up strapped to wrists these days. So a...
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Taking a Guitar Pedal From Concept Into Production
Starting a new project is fun, and often involves great times spent playing with breadboards and protoboards, and doing whatever it takes to get things working. It can often seem like a huge time...
View ArticleGrabbing Weather and Traffic Overlays from iHeartRadio
When the older of us think of radio, we think of dialing in an FM or AM station. Giant broadcast towers strewn throughout the countryside radiated electromagnetic waves modulated with music, talk and...
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Ask Hackaday: Preserving Electronic Devices
Conventional wisdom holds that we no longer make things to last for the long haul, and that we live in a disposable world. It’s understandable — after all, most of us have a cell phone in our pocket...
View ArticleReusing Motors From Washing Machines
Big ol’ motors are great when you need to get a big job done, but they can be expensive or hard to source new. However, there’s a source of big, fat, juicy motors right at home for most people – the...
View Article16-Cylinder Stirling Engine Gets a Tune Up
Tiny catapults, kinetic sculptures, a Newton’s Cradle — all kinds of nifty toys can adorn the desk of the executive in your life. On the high end of the scale, a 16-cylinder butane-powered Stirling...
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Magic Leap Finally Announced; Remains Mysterious
Yesterday Magic Leap announced that it will ship developer edition hardware in 2018. The company is best known for raising a lot of money. That’s only partially a joke, since the teased hardware has...
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Microbalance Determines Alcohol Content
With the holiday season upon us, it is useful to be able to determine just how much (or how little) spiking the office party punch has received. [Russell Smith] shows how he tried to determine the...
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Retrotechtacular: Field Assembling Airplanes Like Wartime “Ikea”
Imagine it’s 1943, and you have to transport 1,000 P-47 fighter planes from your factory in the United States to the front lines in Europe, roughly 5,000 miles over the open ocean. Flying them isn’t an...
View ArticleBringing A Christmas Lights Show Inside
Instructables user [Osprey22] has been building towards this Christmas for years. Why? This year, he has brought an impressive musical Christmas light display inside, and at a fraction of the cost too!...
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Building a Supersized Game Boy Advance
Unless you really look closely at the image above, you might not realize you aren’t looking at a normal Game Boy Advance; which is sort of the point. Even though it retains the looks of the iconic...
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Coin Cells: The Mythical Milliamp-Hour
Just how much metaphorical juice is in a coin cell battery? It turns out that this seemingly simple question is impossible to answer — at least without a lot of additional information. The problem is...
View ArticleJoule Thief Steals in Favor of Christmas
A lot of things tend to get stretched during the holiday season, like shopping budgets and waistbands and patience. This year, [Chris] is stretching the limits of both the mini breadboard and the...
View ArticleArt, Craft, Make, Hack, Whatever
Anyone who has spent much time reading Hackaday, or in the real world in or around a few hackspaces, will know that ours is a community of diverse interests. In the same place you will find a...
View ArticleRickroll The Masses With A Coin Cell Throwie
If there is one educational institution that features on these pages more than any other, it may be Cornell University. Every year we receive a pile of tips showing us the engineering term projects...
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