Everything Else

Space Invaders!

February 25, 2011
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…coasters! I just got these fantabulous Space Invader coasters from my brother-in-law – they’re actually made right here in Indianapolis by Cameron Oehler – check out the guy’s site: www.1337motif.com They seem to be assembled from lots and lots of tiny veneer squares – you can see the alternating grain in this photo: Although it [...]

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…a sinewave generator using PWM

February 9, 2011
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I was reading up on filter design when I came across an article on the Lab3 site…. The results were impressive, using just Pulse Width Modulation generate an accurate 8-bit sine wave. The key is a good low pass filter – most of the time I’ve been using as RC filter, but this uses a [...]

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Very short video of the DRSSTC Tesla coil

February 9, 2011

I’ve had this coil running for a while, but never shot any footage of it. The movie ends a bit quickly, because I got too close with the camera, and it went a bit mental…

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Laser Harp most viewed project on ScienceForCitizens.net

January 2, 2011

I just got an email from John Ohab at www.scienceforcitizens.net – he tells me that the laser harp was the most viewed project in 2010. They published a full list here: Science For Citizens

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So when did Recognizers need jet-engines? (Contains TRON : Legacy Spoilers)

December 20, 2010
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I was 12 when the first TRON movie came out – which as far as I can tell was the intended demographic for the movie. I was so impressed with the then-unbelievable graphics (“Hey, how come you can’t see the pixels?”) that I ran out of the cinema and back around the front to buy [...]

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…how to do skeletal mapping with Kinect

December 14, 2010

From PrimeSense – the company that made the Kinect sensor for Microsoft comes this rather splendid video of their skeletal mapping algorithm: Hands in front of body – check Spin me right round (like a record baby) – check CPU overheating – err… not sure about that one. But in the words of my 2 [...]

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Machinarium

December 10, 2010
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Strange and compelling. Two words I would use to describe the game Machinarium. I keep thinking of Terry Gilliam cartoons from the old Monty Python series as I play it. The beautiful hand drawn environments, the unusual score, and the puzzles ranging from pretty obvious to fiendishly difficult make for a thoroughly enjoyable experience. It [...]

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Failed MS Kinect scalpers sculk back to return sensors…

December 3, 2010
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No you can’t have it, this one’s mine… Quick! Everyone run to Meijer and Walmart – apparently there’s been a glut of Kinect sensor returns – as Black Friday product scalpers fail to sell the devices through online fast-buck engine Ebay. I literally walked up to the counter just as one was being returned – [...]

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Seriously impressive application of 3D projection

December 2, 2010

I just stumbled across this after reading about Apple’s patent on glasses free 3D technology, and was seriously impressed (way more than by the patent). (via http://www.reelseo.com/lithuanian-viral-video/) Apparently, in 2009 Sony hired Publicum Media to create a promotional movie for an upcoming line of mobile phones in Lithuania. The intention was to project this movie [...]

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C# SDK for AR Drone now available

November 28, 2010
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We got the OK from Parrot a couple of days ago to release the source code for the C# .Net ARDrone API . It can be downloaded from here. Big thanks to Thomas and Julien for all their help with this project – there’s no way I could have finished it without them. Note : [...]

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