Computers & Mobile

The latest DIY ideas, techniques and tools for digital gadgetry, open code, smart hacks, and more. Processing power to the people!

Perler bead QR codes

Perler bead QR codes

Looking for an easy way to generate QR codes capable of incorporating into an asphalt mosaic, John from mtoynbee.com found that Perler (aka melty) beads are the way to go. Not only can you position them in a grid, but they are also large enough to be picked up by a standard cameraphone.

Geneva wheels on Thingiverse

Geneva wheels on Thingiverse

Apparently I’m not the only one charmed by the simple elegance of the Geneva wheel movement (Wikipedia). Thingiverse users PrintTo3D and raumfahrtagentur have created printable and laser-cut-able versions, respectively, of the classic mechanism. PrintTo3D has also posted a YouTube video showing the final printing, assembly, and action of his model.

Journal of Serendipitous and Unexpected Results

Journal of Serendipitous and Unexpected Results

This dude is Hans Christian Ørsted, whose 1820 discovery that electric current produced magnetic fields was, supposedly, entirely accidental: He was preparing a voltaic pile for a lecture demonstration and there happened to be a compass lying nearby. He has become a sort of mascot for the Journal of Serendipitous and Unexpected Results (JSUR), a new open-access journal initiative that hopes to provide a forum for life and computer scientists to publish results they lucked into and maybe can’t fully explain. From their website:

Multi-touch on Android 2.1

What gives with multi-touch on the Android OS? Earlier this month when asked about multi-touch on the Nexus One, Google seemed a little touchy about it. It would seem both the hardware and software support multi-touch, but you won’t see it implemented in any of the built-in applications. That’s OK because folks like cyanogen go out of their way to explore the possibilities.