If Microsoft buys Github, there are alternatives.

If you're plugged into the open source or business communities to any degree, you've probably heard buzz that Microsoft is considering buying Github, an online service with a history of having a toxic work environment due to pervasive sexual harassment but still remains the de facto core of collaboration of the open source community - source code hosting, ticket tracking, archival, release management, documentation, project webpage hosting, and generally learning how to use the Git version control system.  At this point it's unclear if they're considering merely investing in the company (currently valued in the neighborhood of $5bus) or buying it …

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Neologism: Gitmnesia

gitmnesia - noun - That feeling when you receive an update email about some ticket on Github from a project that you haven't looked at in so long that you don't recognize its name.  Generally a sign that you follow too many projects on Github.

Pulling 3D objects out of liquid, simplifying chemical synthesis, and Autodesk open sources its 3D printing feedstock

3D printing anywhere but in heavy industry comes with a whole host of common complaints that have given it something of a negative reputation. Fabbed objects require additional detailing to get rid of the ridges and imperfetctions (true), you can't really print entirely hollow objects because internal structure has to be in place to support the upper surfaces (also true), a lot of hacks have to be done to the printer to make them more reliable (true... heated beds come to mind)... there are others but I'll spare the electrons. In fact, I think I'll cut to the chase and …

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A 3D printed laser cutter, aerosol solar cells, and reversing neural networks.

3D printers are great for making things, including more of themselves. The first really accessible 3D printer, the RepRap was designed to be buildable from locally sourceable components - metal rods, bolds, screws, and wires, and the rest can be run off on another 3D printer. There is even a variant called the JunkStrap which, as the name implies, involves repurposing electromechanical junk for basic components. There are other useful shop tools which don't necessarily have open source equivalents, though, like laser cutters for precisely cutting, carving, and etching solid materials. Lasers are finicky beasts - they require lots of power, they …

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Steps toward an open source microfacture shop and what could be the first recorded nanoparticle injury.

A common criticism of 3D printers is that they're not a panacea. They can't do it all - a limitation shared by every tool, when you think about it - and because of that some vocal people claim they're worthless. You can't really convince anyone who's dead-set against being convinced, so let's move on to more interesting things. A problem being worked on right now is developing a set of technologies and workflow for microfacture - extremely small scale automated manufacture, on the scale of a hackerspace or a home workshop. Most of the components exist right now, from 3D printers to lathes …

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3D printing circuitry.

Arguably, even more important than bringing the price of 3D printers down to affordable levels is making them more practical. A commonly cited limitation of 3D printing right now is that they can only fab with one or two materials and can't really reproduce their own circuitry. They're both fair points, I can't argue with them. I can, however, point doubters in the direction of the Rabbit Pronto, a new print head for RepRap-derived 3D printers that is capable of fabbing functional electronic circuitry in addition to structural plastic. The Rabbit Pronto incorporates a 10cc syringe that can be …

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Turtles All the Way Down: So, does anyone actually operate this way?

So, after all everything's said and done, you're probably asking yourself "Why would somebody go through all this trouble to build a computer from the ground up? It's never going to be as fast as one that you can buy, so what's the point?"

Ultimately, it comes down to what you're trying to accomplish. If you want the fastest possible CPU, tens of gigabytes of RAM, and four monitors so you can go raiding more efficiently chances are you have a threat model that doesn't approach the level of concern, paranoia, or security requirements that we assumed through the other …

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Repurposing pharmateuticals and developments in prosthetic limbs.

It is well known that the human brain is a marvelously complex and flexible mechanism, capable of aggregating and processing information from our senses as well as ruminating and calculating based upon the results of other internal processes. It is so complex, in fact, that at this time we can't be sure of what its limits are or what's actually going on in there. People have built entire careers around studying emergent phenomena within the operation of the brain. The day to day operation of the human brain is so complex that it takes very little to tweak its functionality …

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