Samedi 4 mai 2013, Cody Wilson, un étudiant en droit de l’université du Texas (nous parlions de lui en août 2012 ), a réussi à tirer avec le premier pistolet à imprimer en 3 D. Andy Greenberg, de Forbes, était sur place en en a fait le compte rendu de l’exploit ici . L’arme, que Cody Wilson appelle le « Libérateur », est à la fois louée et dénoncée comme un grand coup contre le contrôle du port d’armes aux Etats-Unis. L’organisation à but non-lucratif de Wilson, Defense Distributed, a déjà mis en ligne le design du pistolet pour que tout le monde puisse le télécharger. <a href="http://ww400.smartadserver.com/call/pubjumpi/33259/230913/14321/S/[timestamp]/?"><img src="http://ww400.smartadserver.com/call/pubi/33259/230913/14321/S/[timestamp]/?"
If your home or office has unique security challenges or you just want the geek cred you assemble a system to open a door via an RFID signal. At around $100 the parts aren't expensive, but in addition to basic electronics skills you'll need familiarity with Arduino Uno boards and access to a laser cutter. MIT Researcher Valentin Heun created the RFID door opener as he was annoyed that he needed both his MIT ID card and a key to gain access to the MIT Media Lab. With this system his RFID-embedded ID card is read by an RFID evaluation shield connected to an Arduino Uno board. His RFID code is approved and a servo opens the door. A laser cut mounting board allows the servo and RFID evaluation shield to be attached to the door's handle and deadbolt.
The problem with remote controls is that they're often never in your hand when you need to operate them. This hack will really let you control your devices from afar. It's like the clapper only it uses whistled commands. Posted on the Befinitiv blog, the project involves a microphone to capture the audio, which is transformed by a FFT (Fast Fourier transform), and Linux code to detect the unique whistle sounds that control his different devices. So you can have a whistle for your lamp and one for your printer and so on. If you're a good enough whistler, that is.
We feature a lot of do-it-yourself projects here at Lifehacker, but oftentimes they seem undoable because they require a skill you don't have. Thankfully, there are quite a few DIY skills out there that are much easier to learn than you think. Here are our 10 favorites. 10. Coding Instead of waiting around for someone to build the exact program you need, knowing how to code means you can make it yourself—so no matter what your computer needs, you can make it happen.
We've shown you some great tiny emergency kits in the past , but this one fits in a small pill bottle, and while it's not as well stocked as some of the others, it'll definitely do in a pinch, especially when the important things like treating a cut or scrape before infection sets in or building a fire before dark are your most important concerns. Make no mistake, Instructables is laden with emergency kits of all shapes and sizes—some of them are large enough to contain a Leatherman or other multi-tool, and others are so tiny they're only really meant to be portable first aid kits. This one however walks the line between the two. It comes stacked with matches and a striker so you can build a fire, some foil, antiseptic, a bandage, and some thread in case you need to treat a wound, some safety pins, painkillers, a razor blade, fishing line and a hook, and more.
Box 1-7 , created by Finnish designer Pekka Kuivamäki, is one nifty shelving system. Each box fits inside of each other like Russian nesting dolls. Barcelona-based BeaMalevich launched the easily assembled modular shelf to contrast the shape of every other shelf out there. Box 1-7 is composed of seven simple cubes that hang from a single nail on the wall.
<img class="aligncenter size-full wp-image-22882" title="snare-close-up" src="http://content.artofmanliness.com/uploads//2012/02/snare-close-up.jpg" alt="" width="500" height="375" /> Editor’s note: This is a guest post from Creek Stewart of Willow Haven Outdoor. I practice and learn survival skills not because I need them on a daily basis, but rather for the one day when I must use them to stay alive. Survival is the intersection between knowledge and necessity. The outcome in a survival scenario can be dramatically influenced by practicing survival skills before you need them. One such skill that requires thoughtful practice is How to Build a Small Game Survival Snare .