Fans of the homebrew electronics scene may well be familiar with the name Chris Fenton, he of the DIY laptop and a working scale model of the Cray-1A supercomputer. Now he's back with yet another ambitious project: he's set out to build a fully functional electromechanical computer using a 3D printer to fabricate all the parts. That's still a ways from being completed, but Fenton has already finished one key component of it: the punch card reader. Head on past the break to see it in all its whizzing and buzzing glory.
Continue reading Chris Fenton follows up scale model Cray-1A with 3D-printed electromechanical computer, of course
Chris Fenton follows up scale model Cray-1A with 3D-printed electromechanical computer, of course originally appeared on Engadget on Tue, 01 May 2012 13:47:00 EDT. Please see our terms for use of feeds.
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The problem with lasers is, they tend to generate just a single color or light.To get more than one hue requires actually combining more than one type of laser to produce red, green and blue. But researchers at Brown University have figured out a solution to creating small RGB lasers by using colloidal quantum dots, or CQDs. The idea of leveraging the properties of the thin film isn't new, but past attempts to use CQDs in semiconductor lasers have failed because the necessary energy tends to wind up as heat instead of light. The work around scientists found was to excite the various dot sizes with a laser then filter out original light source. Unfortunately, the solution is far from practical for use in commercial products, but it does represent a milestone in the march towards a single-material multi-wavelength laser. For more details check out the source link.
Researchers make an RGB laser with a regular laser and quantum dots originally appeared on Engadget on Tue, 01 May 2012 06:06:00 EDT. Please see our terms for use of feeds.
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We love listening to our favorite tunes, as they provide a soundtrack to our otherwise dull and silent blogging existence. But, sometimes the lyrical stylings of Jay-Z and glorious jams of Trey Anastasio simply don't meet our musical needs. We need something different, something never before heard by human ears, to get us through the news day. Enter Cornell students Charong Chen and Siyu Zhan, who have constructed an electric keyboard that one ups Yamaha's singing piano by creating and playing its own compositions. Users simply select between two mood modes -- happy or tender -- to determine the tune's tempo, then play a couple notes and the piano sets to sating sonic cravings. There's another mode that allows users to play a melody to "train" the keyboard, which then plays permutations of that melody in an automated jam session. In that training mode, users can play as long as they like to give the keyboard a better idea of what they're into, which allows the algorithm to better tailor its audial output. The hardware making the music happen is comprised of a microcontroller (MCU) with the composing algorithm on board, a numpad for choosing the operational mode, and a 23-key piano that communicates with the MCU through a trio of encoders. The results are impressive, if not quite concert-hall quality. Hear it for yourself in the video after the break.
Continue reading Auto-composing keyboard creates tunes tailored to your taste
Auto-composing keyboard creates tunes tailored to your taste originally appeared on Engadget on Wed, 02 May 2012 00:06:00 EDT. Please see our terms for use of feeds.
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Each week Ross Rubin contributes Switched On, a column about consumer technology.
The end of last week's Switched On left doubt for the future of dedicated devices that tread on the turf of smartphones. After all, funding is key to every major new product initiative and, despite the vast fortunes of many Silicon Valley engineers that have been accumulated via IPOs and acquisitions, few wish to take on the risk of fronting a new consumer device themselves.(In 2007, the handheld FlipStart PC was hatched from FlipStart Labs, funded by Vulcan Ventures, the investment arm of Microsoft co-founder Paul Allen.)
Most venture capitalists abhor the device business; it is a rare device that makes it to the spotlight of startup debutante balls such as DEMO, TechCrunch Disrupt, or Launch. Even most of the 94 companies at CES' Eureka Park were not developing end-user devices Where, then, can a device entrepreneur go for funding and pick up some publicity in the process?
Continue reading Switched On: Big kicks not all for starters
Switched On: Big kicks not all for starters originally appeared on Engadget on Sun, 29 Apr 2012 17:30:00 EDT. Please see our terms for use of feeds.
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Brit Morin, the Martha Stewart of tech, is today announcing a $1.25 million seed round for her technology and content company 