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I love this bicore with five "slavecores" caterpillar BEAM bot. It is a photovore (light-seeker) with two operating speeds and rechargeable Li-Ion batteries (via USB). The builder has an Etsy shop too where you can buy his bots.
Middle Creek Merchants Robot Page
Middlecreek Merchants Etsy Shop

MAKE subscriber Jared writes in to share his latest tutorial, how to make a laser instrument. Using a set of eight laser diodes and detectors, he converted an Arduino into a nice looking instrument. We've seen other laser harps in the past, but this one is neat because the Arduino is also used as a synthesizer to make the sounds, so the whole thing is self-contained.
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At the Eiffel Tower's official web site, you can check out scans of the original blueprints created by Gustave Eiffel in preparation for the 1889 World's Fair. The famous tower in Paris was the source of much controversy (many thought its skeletal design ruined the classical cityscape) and remained the tallest structure in the world until the Chrysler Building in 1930.
[via Gizmodo]
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This Christmas tree in London is made out of recycled bicycle wheels, donated by a non-profit that ships bike parts to Africa to help with health care transportation in rural areas. A neat idea executed by a cool architecture firm, even though I don't think it really looks like a Christmas tree.
[Architects Journal via Inhabitat]
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Instructables user jrossetti writes:
Read more | Permalink | Comments | Read more articles in DIY Projects | Digg this!In this instructable, I'll outline the requirements for a small chicken tractor for the backyard chicken enthusiast, such as myself, and describe the process of building it. After seeing a lot of chicken tractors on the internet for outrageous prices, I decided it'd be better for me to build one myself, for cheaper, and that fit my needs a bit better. I'll show you how I did it and give some pointers on making your own design.
For those of you that don't know what a chicken tractor is, it's essentially a chicken coop that can be moved around. Some of the main purposes for a mobile chicken coop are to allow the chickens to fertilize the grass (though this ain't pretty at all, hahah), and they can eat the grass - keeping it trim (if done right), eat bugs and weeds, and so you can hide it when your parents come visit. There's other benefits too, though I'm not saying a coop is NOT the way to go (actually, my city has an ordnance stating any permanent chicken coop must be 40 feet away from any human house, so a tractor is a nice efficient way to bypass that ordnance, muahaha!).
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One of the highlights is a story explaining how nuclear power—remember, this is only five months after Hiroshima and Nagasaki—could be harnessed peacefully, to produce energy in America. The piece includes diagrams showing how a nuclear generator might be designed. Fun for comparing with the cutaways of modern nuclear reactors that Cory posted last week.
Also neat:
Popular Science, December 1945
Thumbnail image from Flickr user x-ray delta one, via CC
This post is part of the IT Innovation series, sponsored by Sun & Intel. Read more at ITInnovation.com.
Of course, the content of this post consists entirely of the thoughts and opinions of the author.
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Seiko's legendary talking pyramid clock returns in updated form, featuring LED lighting and sharp corners. It's Japan-only for the moment. [via CrunchGear]
Am I too late for Santa?
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Interesting article over on Wired about Kirk Sorensen and the community served by his Energy From Thorium blog. To hear these people tell it, thorium fission in fluid fuel reactors offers an idyllic vision of a boundless-energy-from-the-atom type future no one has really believed in since the early 50s. Thorium, reportedly, is abundant, safe, highly efficient as a nuclear fuel, and produces waste that is radioactive only for a few hundred years instead of tens of thousands.
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This augmented reality app from Ogmento for Orange Israel features an interactive virtual iPhone hovering over a stylized marker. The demo allows the user to control the virtual iPhone through its touch interface and superimposes it over a realtime camera view. [via gizmodo]
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Making paper airplanes with your kids is a lot of fun, and best of all it's inexpensive! You are never too old, or too young, to fold up some paper and marvel at the mystery of flight. Each of these books will show you how to make some truly unique planes, not just the standard detention-hall variety.
Fantastic Flight book:Read more | Permalink | Comments | Read more articles in Maker Shed Store | Digg this!
These aren't your ordinary paper airplanes. These airplanes loop, circle back, flap their wings and spin, tumble, soar, and, of course, glide. Fantastic Flight reveals how to combine aerodynamics, origami, and a single sheet of paper to create phenomenal flying fun.
Gliding Flight book:
Gliding Flight is a return to paper airplane basics: one person, one piece of paper, and a few folds later, one airplane. Using a refreshingly inventive approach to designs and flying characteristics, you can make 20 original paper planes, such as the Stealth, the Wind Devil, the Glart, and the Skid Kid. In the current age of electronic toys, The Gliding Light proves you can still have fun with a simple sheet of paper and a little imagination.
For a claimed machine (or article of manufacture) involving a mathematical algorithm,As many are noting, this remains incredibly vague, though the Patent Office is limited by what the courts have said. One would hope that the Supreme Court's ruling in Bilski might lend some clarity, but the oral arguments suggested that the court might try to steer the decision away from anything having to do with software patents entirely. So, we may still have something of a mess for quite some time.
1. Is the claim limited to a tangible practical application, in which the mathematical algorithm is applied, that results in a real-world use (e.g., "not a mere field-of-use label having no significance")?
2. Is the claim limited so as to not encompass substantially all practical applications of the mathematical algorithm either "in all fields" of use of the algorithm or even in "only one field?"
If the machine (or article of manufacture) claim fails either prong of the two-part inquiry, then the claim is not directed to patent eligible subject matter.
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The program guide for TED 2010 is up and, as usual, the speakers are interesting. Highlights, for me, include ukulele player Jake Shimabukuro (do yourself a favor and watch some of Jake's YouTube videos), neuroscientist Sam Harris, 4chan founder Christopher "moot" Poole, David Byrne, spider silk scientist Cheryl Hayashi, and Wisdom of Whores author Elizabeth Pisani.
"Morally, I'm a Christian. 'Thou shalt not steal.' But to me, even copyright infringement when it occurs may not necessarily be stealing."The court seems to think this indicates inducement, but if that's the case, then shouldn't the Supreme Court itself be guilty as well for famously stating in the Dowling case:
"(copyright infringement) does not easily equate with theft, conversion, or fraud... The infringer invades a statutorily defined province guaranteed to the copyright holder alone. But he does not assume physical control over copyright; nor does he wholly deprive its owner of its use."If the first is inducement, isn't the latter as well? Furthermore, the court seems to take a quote that refers to "stealing from leechers" to mean inducing infringement, apparently not recognizing that leechers have a very specific meaning in the BitTorrent world, and the statement appears to have nothing to do with infringing on copyright.


Print'em out, give to friends... gorgeous.
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Jeff posted this nice how-to on wiring up a 7-Segment LED to an Arduino. His code uses the 'map()' function to scale the sensor data and display it's relative value on the 7-Segment display. This is a good project to try out, after you make the infamous pin 13 blinking LED. [via arduinofun]
In the Maker Shed:
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Make: Arduino
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Some enterprising pranksters at Willow Garage hid a ckBot robot in the ceiling of their office, then used it to shoot ping pong balls at an unsuspecting co-worker. Awesome! [via <a href="http://gizmodo.com/5432125/ping-pong-robot-hides-in-the-ceiling-until-
the-moment-is-right">gizmodo]

Richard Kline writes:
Non circular gears are strange. When the topic of square gear trains appears in casual conversation, people tend to think a joke is being made, that it is 'impossible' to make a square gear that actually meshes properly. After being drawn into a vicious debate with a co-worker about the existence and plausibility of such gears, I realized I had no choice but to resort to an actual demonstration to sway his view. In the not-too distant past this would have been a virtual impossibility, at the very least I would have had to spend an indeterminate amount of time hunched over a scroll saw, trying to cut splintery wooden gear prototypes by hand. Fortunately, this is the pushbutton world of 2009, a Google search turns up dozens of laser/waterjet cutting services and MakerBots are squeezing out ABS plastic Darth Vader helmets in every good nerd's house this Christmas. And thus, a project was born...Read more | Permalink | Comments | Read more articles in 3D printing | Digg this!
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