Read more of this story at Slashdot.
Read more of this story at Slashdot.
Read more of this story at Slashdot.
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.
I beg your pardon for missing my post yesterday. I was struggling to get the first Postmamboism T-shirt manufactured, celebrating the publication of "Principles of Postmamboism." Looks like I'll have 'em sometime between Monday and Wednesday. The graphic that accompanied that article -- "Abre kuta güiri mambo" (open up your ears and listen to the important matter") -- is going to be the T-shirt image, only printed in red on black instead of black on white. Damn, I haven't made a T-shirt since the last Muñequitos tour.
Today's post is pictures, specifically from New Orleans, and more specifically from my book The Year Before The Flood. To my delight and astonishment, my publisher (Lawrence Hill Books) gave me a 16-page color glossy insert for my photos, along with the black-and-whites sprinkled through the text. Most of them were taken during the almost-year we lived in New Orleans, which is the slice of time the book is about: from August 2004 to May 2005. Here are a few of the pix, though I do think they look better bigger, on paper:
Above, Aldo "Michael" Andrews, of the Bayou Steppers Social Aid and Pleasure Club, in front of the entrance to the Mother-in-Law Lounge in Tremé as their anniversary parade drew to a close on January 16, 2005. Moments after this picture was taken, the police turned on their sirens and ordered the area cleared.

Outdoor opening pageant of the Pussyfooters' Ball, in front of the Country Club in the Bywater, October 30, 2004. (Velvia 50 ASA, bulb setting, if you're old enough to remember film.)
Alfred Growe, trombonist of Stooges Brass Band, outside Juicey's Lounge in the Irish Channel, during a rest stop on the Prince of Wales Social Aid and Pleasure Club (established in 1928, the second oldest club still marching in New Orleans) anniversary parade, October 17, 2004.

Three great New Orleans drummers: Earl Palmer, Zigaboo Modeliste, Smokey Johnson, assembled for a Tipitina's Foundation event, January 15, 2005.

A texture of live oak branches.
To subscribe to my e-mail list, send an e-mail with "subscribe" in the subject heading to ned dot sublette at gmail dot com.
Read more of this story at Slashdot.
Ask MAKE is a weekly column where we answer reader questions, like yours. Write them in to mattm@makezine.comor drop us a line on Twitter. We can't wait to tackle your conundrums!

Bjorn writes in:
I'm wondering if you could help me out with resistors. I'm a computer science guy and am very new to electronics. Most of my resistor usage in my experimentation has been because I read about situations when I should use them online and just used a specific resistor because it was recommended. Obviously this only gets me so far. How do you go about determining what level of resistance you need and when you should or need to use resistors? I didn't know I was supposed to be hooking up LEDs to my Arduinos with resistors until I started burning out LEDs and read somewhere what type of resistor someone recommended. I know it has to do with the Arduino running at 5V and most LEDs being lower voltage, but how do you know what voltage an LED is if it's not labeled? And more importantly (like my question above), even if you know what voltage and LED is how are you supposed to figure out what kind of resistor to use?
Sure thing! This question actually comes up quite a bit, and it's a good thing to understand.
Putting a resistor in series with an LED limits the amount of current that can flow through it, preventing it from blowing up. It's nice to be able to figure out an exact resistance to use, but if you aren't too worried about your light being a bit dim, you can always just stick in a largish resistor, and you will get some light. For instance, if I am making a prototype circuit and just want an indicator light that I can control from an Arduino, I'll grab a 220 ohm resistor and put it in series with the first LED I can find. It's probably fine for a quickie circuit, but if you are soldering up a project that you intend to keep around, it's probably a better idea to actually calculate the correct amount of resistance to use.
So, how do you do it? Well, for a single LED, you can use the LED circuit equation:

![]()
Unfortunately, this only helps if you know the forward voltage and current rating of your diode. So, how can one figure those out? You can make an estimate abut the forward voltage of the diode based on it's color, because the wavelength of the color and the forward voltage are roughly inversely proportional to one another. Some typical forward voltages are: Red:1.8V, Green: 2V, Blue: 3.4V. Once you have an estimate, you can measure the forward voltage of your LED by hooking it up with the suggested resistor value, and measuring the voltage across it. Then, if you were way off, you can re-calculate the resistance with the actual voltage to get a better result.
Once you know the forward voltage drop, you can choose a current value based on how bright you want the LED to be, as long as it is lower than the current rating of the device. Unfortunately, it's a little bit harder to figure out the current rating, because most LEDs will continue to operate at higher than the recommended amount. If they are, though, their lifetime will be much shorter, and they won't be as efficient at producing light. If you don't have the specifications for your LED, 20ma is probably a safe maximum.
If you don't feel like solving all of that by hand, or have a more complicated design involving multiple LEDs, you could also use an online LED calculator. This one looks nice, because it will also tell you how to hook up multilple LEDs.
Ok, enough calculations. This is what can happen if you don't connect the LED up properly:
Boom! Engineers sometimes call these 'unauthorized thermal events'
Related:
Read more | Permalink | Comments | Read more articles in Ask MAKE | Digg this!
I know writer and editor Kristen Philipkoski as a former colleague from Wired, and was delighted when she pinged from the recent Art | Basel fair in Miami with an offer to send Boing Boing short dispatches about what she saw there. I'll be posting a few of them over the coming days. Here is her first:
Video is the PaintAfter the jump, a photo of Kristen trying it out herself.
Kristen PhilipkoskiIn a video installation built by the creative Brooklyn duo Sweatshoppe, an LED roller paints video onto any wall. It looks like magic. Using a programming language called Max/MSP, Blake Shaw wrote software that makes projected video visible when it comes in contact with the LED lights in the roller. Shaw and his partner Bruno Levy let attendees at the Scope Art Show in Miami try out their system by painting an enormous video of a woman licking away at a popsicle.
In the video above: watch the technology in action, you won't believe it's not special effects.
There is no fold. Viva la scroll!
I hate camera straps. But LumaLoop looks like it could be the savior of my camera-carrying woes.
The ABCs of Branding is a sweet poster that’s “…foil stamped and embossed to create an alphabet composed of letters from many of the more famous (and some infamous) logos of all time”.
I also saw photos of an amazing art installation made entirely of large quantities of salt.
On his trip to Antarctica, Alek O. Komarnitsky took these wide-angle shots of Adelie Penguins walking by a Boing Boing logo he set down in the snow.
Wide-angle shots of Adelie Penguins walking by BoingBoing sign in Antarctica
Read more of this story at Slashdot.
"We answered the complaint, but they (BMI) wanted us to do ridiculous stuff. Our attorney said to take it to court and see where it goes."also doesn't make much sense. If their attorney said to take it to court, they (perhaps... just a suggestion) should have showed up in court. They now claim they'll appeal, but not showing up for the original case was a huge mistake. Separately, they claim that the karaoke night was run by a third party contractor that was "properly licensed" with BMI and ASCAP, but I'm pretty sure that is incorrect. If I remember correctly, it's the venue that needs the license, not anyone doing the entertaining.
"It's definitely about the money as well as the judgment," Bailey said. "We will take appropriate steps to secure the judgment. This is not new to us. We are experienced in this area. Our attorneys know what to do."Yes, the shakedown business is a good one, and BMI has lots of experience in it.
Read more of this story at Slashdot.
Here's Sophie Madeleine playing "I've Got My Love To Keep Me Warm" on the uke. She's got a new 4-track album out and will be playing in New York for the first time in January 2010.

Thanks to all who joined our live 3D printing webcast where we used my MakerBot CupCake CNC machine to print out Sean Ragan's animal pentominoes puzzle pieces! Over 250 of you stopped by over the course of the hour, and it was so fun chatting with you! We'd like to do more live events in the future, including a maker show-and-tell type of meeting, but online. If you missed the webcast, you can watch it in the Ustream archive. If you have suggestions for live events you'd like to see Make: Online produce, please post 'em up in the comments!
More:
CupCake CNC build, part 5: Pulley & enclosure finishing
Alex Ringis write in to share the video embedded above, and says,
These kids wrote and recorded a beautiful "Agnostic" Xmas Carol, and it's for a good cause, too. For every goat you buy with WorldVision, they'll give you a free pair of MP3s, both of this song and another, upcoming release. The track is very "Broadway", and I am in love with this girls' voice. I'm going over to WorldVision right now to buy a goat, so I can get this beautiful track.Pomplamoose - Always in the Season (YouTube)
Read more of this story at Slashdot.
Important educational video that documents the rise of Om Nom Nom and its meaning in culture. Includes early footage of Cookie Monster in a training video for IBM.
I watched it with my cat, Red, and he seemed enthralled. Of course, he also chases his own tail.
Rocketboom Institute for Internet Studies: More "Know Your Meme" videos
(Guest-essay by Jasmina Tešanovi?, video here.)
Silvio Berlusconi, the controversial Prime Minister of Italy, suffered a severe physical attack in Milan this past week. The man who attacked him with the plaster model of the Duomo cathedral, at the site of the same Duomo cathedral, is said to have a history of mental illness. He was immediately arrested and found to have also possessed a vial of pepper-gas.
Berlusconi's face was bleeding, his teeth were broken, and his lips torn when he stood up from his car to wave with a desperate face at his confused audience. He was immediately taken to the hospital.
The day after, his first question was: why do they hate me so much? The scandal-prone prime minister has been the center of sexual, political, and mafia-linked scandals over the past year. Only a week ago, a big worldwide demonstration was held to demand that he resign from power, and set Italy free from his dubious ways of ruling, which involve corruption, underage girls, prostitutes, and attacks on freedom of press and the civil rights of both citizens and immigrants.
The president of Italy, Giorgio Napolitano, declared immediately that the spiral of violence must end at once. Other Italian political officials condemned the physical attack, but some did mention the personal responsibility of the premier: whoever hits will be hit in return.
One hour after Berlusconi was hit in the face, a Facebook protest page was opened and 1,000 signatures appeared. In a couple of hours that number grew to 50,000 people who were pleased to see the head of state assaulted. Some were asking for the attacker to be declared a saint. Other websites representing opposite opinions but just as impassioned, appeared very quickly. The authorities are considering closing some violent websites.
This is a very dangerous turn of events. Milan and Italy remember the 'years of lead' in the 1970s, when extra-parliamentary terrorist left and right groups were tormenting the city, causing the death of innocent civilians and massive political confusion. The spiral of violence ended in the kidnapping and execution of the politician Aldo Moro. Until this day some dark acts of those years have not been resolved, the witnesses have been eliminated, the political pressures clashing.
What will come next? The government can use this episode for repressing public demonstrations and other political freedoms. The security issues are on top of the national agenda.
Was this episode the random case of a lunatic, or a calculated step in the escalation of hate and violence in Italy? Berlusconi denounces partisan polarization and bitterness, yet he provokes it. As prime minister, he has the first responsibility for this sorry state of affairs.
The president Napolitano claims that opposite parties should not accuse each other, but that each side should take its part of responsibility and try to bring peace.
Medical reports say that Berlusconi will need to stay in the hospital to heal his jaw, but that his blustering sense of humor is undamaged.
It is Italy that seems hurt, sorrowful and trembling, from top to bottom, and justly so. Everybody wants to go back to normality, in a normal democratic state, but that normality was not lost this week in any single wild attack.
Italian political stability and dignity have declined over the course of many years, slowly and painfully. To restore civic health and a sense of pride in their public affairs, many Italians will have to take action.
Jasmina Tešanovi? is an author, filmmaker, and wandering thinker who shares her thoughts with BoingBoing from time to time. Email: politicalidiot at yahoo dot com. Her blog is here.
Previous essays by Jasmina Tešanovi? on BoingBoing:
• Report from anti-Berlusconi demonstration in Rome
• On Marina Abramovic, a "grandmother of performance art"
• The Murder of Natalya Estemirova.
• Less Than Human
• Earthquake in Italy
• 10 years after NATO bombings of Serbia
• Made in Catalunya / Lou and Laurie
• Dragan Dabic Defeats Radovan Karadzic
• Who was Dragan David Dabic?
• My neighbor Radovan Karadzic
• The Day After / Kosovo
• State of Emergency
• Kosovo
• Christmas in Serbia
• Neonazism in Serbia
• Korea - South, not North.
• "I heard they are making a movie on her life."
• Serbia and the Flames
• Return to Srebenica
• Sagmeister in Belgrade
• What About the Russians?
• Milan Martic sentenced in Hague
• Mothers of Mass Graves
• Hope for Serbia
• Stelarc in Ritopek
• Sarajevo Mon Amour
• MBOs
• Killing Journalists
• Where Did Our History Go?
• Serbia Not Guilty of Genocide
• Carnival of Ruritania
• "Good Morning, Fascist Serbia!"
• Faking Bombings
• Dispatch from Amsterdam
• Where are your Americans now?
• Anna Politkovskaya Silenced
• Slaughter in the Monastery
• Mermaid's Trail
• A Burial in Srebenica
• Report from a concert by a Serbian war criminal
• To Hague, to Hague
• Preachers and Fascists, Out of My Panties
• Floods and Bombs
• Scorpions Trial, April 13
• The Muslim Women
• Belgrade: New Normality
• Serbia: An Underworld Journey
• Scorpions Trial, Day Three: March 15, 2006
• Scorpions Trial, Day Two: March 14, 2006
• Scorpions Trial, Day One: March 13, 2006
• The Long Goodbye
• Milosevic Arrives in Belgrade
• Slobodan Milosevic Died
• Milosevic Funeral
"I was made aware that edited footage of games involving Buckie Thistle was being shown on YouTube without the prior approval of the league. Over the last three months, attempts were made to establish who was responsible, but I was advised that the person's name was unknown.Now, there are all sorts of issues here, so let's go through them one by one:
"On meeting Mr Smith at Deveronvale, I asked him if he had permission to video this game, as it was the copyright of the league and no permission had been sought nor given. After brief discussion, he was advised by me that he may have to pay for the royalties for all videos taken and the sum could amount to £5,000."
THIS is not a question of copyright. The SFA does not own copyright on a football game. Copyright only applies to something such as a book, film, play etc that has been created as an act of labour by an individual or group of individuals. Men running around chasing a ball is not something that has been created.
The irony is that David Smith owns the copyright to his own piece of film; he has put the effort into filming and editing it and when he puts it on YouTube, he is tacitly allowing people to watch it and even download it on to their computer. But if those individuals then attempted to sell it for commercial gain then he would be well within his rights to stop them as they would be breaching his copyright.

The Atari Punk Console kit is a simple and fun sound generator that would make the perfect stocking stuffer for anyone that likes beeps, blips, and boops. The original circuit was developed by Forrest M. Mims III, and was coined the 'Atari Punk Console' by Kaustic Machines due to the similarity of the sounds it makes to an Atari 2600. Please note: An enclosure is not included, but you could use almost anything! Still not sure what to use, a Make project tin would make a perfect enclosure.

Maker Shed holiday shipping deadlines!
Need something shipped in time for Christmas? Here is what you need to know!
Orders placed by Saturday December 19th, Midnight (Pacific) ---> SHIP 2-DAY
Orders placed by Monday December 21st, Midnight (Pacific) ---> SHIP OVERNIGHT
Bernie Madoff, 71, seems to be doing well in North Carolina's Butner Federal Correctional Complex. He plays games like chess and bocce ball, and works in the kitchen as a pot and pan scrubber.
The most interesting bit in this Wall Street Journal article is about K.C. White, a talented artist who was recently released on a bank robbery charge, but was in prison when Madoff started serving time. He drew Madoff's portrait in prison.
Mr. Madoff struck up a conversation [with White], saying: "You're the guy who does all the pictures around here," Mr. White recalls.In this highly entertaining video interview with White on Philly.com, White said Madoff is unremorseful for his crimes:According to Mr. White, Mr. Madoff chatted about the fraud's aftermath, claiming he "carried" employees at Bernard L. Madoff Securities LLC for more than two decades, yet wound up with an astronomical prison sentence. "I guess he felt they turned their back on him," Mr. White says.
Still, Mr. Madoff seemed proud, walking around the prison with his head held high. "He carried on like he'd been doing time for years," Mr. White says.
Mr. Madoff asked Mr. White to paint his portrait, so the bank robber drew a fast sketch in the prison paint shop where Mr. Madoff worked at the time, according to Mr. White.
Mr. Madoff told Mr. White he didn't want to be depicted in his prison khakis, Mr. White says, so he drew him in a suit and tie.
"I call [the portrait] 'F--- My Victims,' because Bernie is not very remorseful. He told me, 'I made them millions of dollars. I'm doing 150 years. F--- my victims.'"
Madoff's attorney, Ira Sorkin, doubts that Madoff would ever utter such words. Says Sorkin: "At all times, he expressed deep and sincere remorse, both publicly and privately, for everyone who he put through" the Ponzi scheme that ballooned into the largest investment fraud - victims lost billions of dollars - ever committed by a single person.
Bernie Madoff, the $19 Billion Con, Makes New Friends Behind Bars
Small white dots placed on some of the squares of a checkerboard-like grid make it looked warped. (Via Fogonazos)
Mike sends us, "Photo of supermarket shelf tag advertising boneless ham as 'Delicious for Chanukah.'"
Yes, yes, I know. Some wag at the supermarket moved the "Delicious for Chanukah" sign over by the ham. But imagine what a breakthrough it would be if, through some GM miracle, a Kosher ham could be made, and then served at Channukah, perhaps with latkes (you could use the applesauce for both!). Imagine.
Unusual Chanukah suggestion (Thanks, Mike!)

Looking at a slice of the watermelon daikon, you'd almost think it should taste like a real juicy watermelon. Of course, it doesn't — it tastes like an ordinary radish, except a little bit sweeter and more peppery. Some believe it's an heirloom variety of daikon, the long white Asian radish.
Daikon is high in fiber and low in fat, so it's great for weight loss; somewhat ironically, the term daikon ashi is used in Japan to refer to women who have thick legs. Daikon literally means big root. The origins of radish can be traced back to ancient Roman and Asian civilizations, though it's believed to have existed way back into the annals of undocumented history.
Watermelon daikon tends to get rubbery after a week, so if you want to preserve the pretty pink veggie, try this simple pickle recipe.
If you're not into pickles, you can eat the watermelon daikon by cutting it into thin slices and sprinkling salt on it. Or you can put it in a salad, which is what I did for dinner last night.Pickled watermelon daikon
Slice a couple of radishes and a small onion. Put them in a jar. In a bowl, mix 1/2 cup of rice vinegar, 1/8 cup of sugar, and 1.5 tsp of salt. Pour the sugar-vinegar mixture over the radishes, then cover and refrigerate for one day.
Image via sleepyneko's Flickr
Image via kthread's Flickr
Read more of this story at Slashdot.


Ever take a photograph, and realize after the fact that you focused on a tree in the background instead of your subject's face? Wish you could go back and fix it? Well, unfortunately you can't if you used a regular camera, however if you had a plenoptic camera it would be no problem. Instead of capturing a flat, 2D array of pixels, a plenoptic camera uses an array of microlenses to capture 4D lightfield data. This data can then be processed to create a final image that is focused on any part of the scene.
Daniel Reetz and Matti Kariluoma wanted to experiment with light field photography, but you can't really buy one of these cameras, so they built one themselves. Instead of using a single camera and microles array, however, they decided to use rapid prototyping equipment and a bunch of point&shoot Canon cameras loaded with the SDM firmware, and the result is the Large Light Field Camera Array. Plans aren't available yet, however they are pledging to release the whole thing as an open source/hardware project. Looks great, guys! [via teamdroid]
Read more | Permalink | Comments | Read more articles in Photography | Digg this!
"He used Voter Vault. The The Republican National Committee owns Voter Vault....It's a private list. We own the list. We can do what we want with the list, quite frankly."Including stalking? This isn't a "Republican" thing either. I'm sure some Democrats misuse their databases as well, so hopefully the comments can avoid blindly supporting or hating on this or that political party. The key point here is that it's yet another example of a database that's supposed to be used for one purpose, being used for stalking instead.
Read more of this story at Slashdot.
Read more of this story at Slashdot.


Artist Marshall Astor created this working Rubik's cube in cast bronze. There's tons of detail on the creation process at his personal website. [via Neatorama]
Read more | Permalink | Comments | Read more articles in Arts | Digg this!
Shocker: Advertising health claims are often misleading. In this case, it looks like most of the products that tout near-perfect germ-killing abilities are getting those results in trials that aren't exactly designed to mimic real-world conditions. When a University of Ottawa microbiologist ran a more realistic demonstration for Canadian schoolchildren, he turned up VERY different results.
Three popular sanitizers killed between 46% and 60% of microbes on the students' hands, far short of 99.99%. Bugs that aren't killed by sanitizers aren't necessarily more dangerous than those that are. But the more that remain, the greater the chance of infection, doctors say.
The ad writers also benefit from regulations that allow them to claim 99.9% effectiveness without actually killing 99.9% of all germs, all the time. Instead, representative samples can stand in, and there's room for do-overs in the lab, if the first test doesn't work.
Wall Street Journal: Kills 99.9% of Germs—Sometimes
Image courtesy Flickr user If you dream it..., via CC
Dinotopia creator James Gurney just posted his 1000th entry on his art blog, Gurney Journey, and to celebrate, he posted a list of his most popular blog entries.
One of them is about his trip to the North Carolina Zoo in 2008, where he drew portraits of the great apes there.
Excerpt:
We got there early in the day when the gorillas were just waking up.James Gurney's Gorilla PortraitsI remembered something I learned in my primate social behavior class. I approached the glass with a submissive posture, looking down at the ground and backing up with my hand out.
The gorilla loved it. He had never seen a human act like a polite ape before. He came right up to the glass and posed for me while I did this half-hour portrait from just two feet away. It was like sketching someone on a subway. I tried to just glance at him discreetly out of the corner of my eye.
Read more of this story at Slashdot.

Have you seen the rad pentominoes animal puzzle that Make: Online Contributing Writer Sean Ragan made using OpenSCAD? Check out his tutorial for this open solid 3D modeling software and then join us on Ustream at 1pm EST (10am PST) where we'll be printing the puzzle pieces in a live webcast. Sean and I will be in the chat window answering questions and taking music requests (anything you want as long as it's Daft Punk). Please join us!
Live 3D printing with MAKE and MakerBot
Friday, December 18 1-2pm EST
Becky's Ustream channel
According to a series of blog posts and YouTube videos making the rounds, a group of Korean ESL students are learning English by re-enacting scenes from the movie Gladiator (Thanks Jason!).
According to a series of blog posts and YouTube videos making the rounds, a group of Korean ESL students are learning English by re-enacting scenes from the movie Gladiator (Thanks Jason!).

Furry Objects is a series by Danish artist Magnhild Disington that mixes scraps of fur with cell phones and flash drives. [via Core77]
Read more | Permalink | Comments | Read more articles in Arts | Digg this!

a tiny gingerbread house that perches on the rim of your mug (via A Whole Lotta Nothing)

a tiny gingerbread house that perches on the rim of your mug (via A Whole Lotta Nothing)
It's the holiday season, maybe that's why it took a full day for the discussion to get underway about Tumblr's implementation of the Twitter API. But it is rolling now, and going in an interesting direction.
Read more of this story at Slashdot.
Read more of this story at Slashdot.

Molly Epstein "Vertebrae" SLS 33% Glass-Filled Nylon (via Street Anatomy)
Read more of this story at Slashdot.

Seems the noise jam got a bit out of hand when sonic experimentalist Aj "Gannon" Pyatak recorded the above demonstration of his very circuit-bent amalgamation - the Toy Volcano. In fact, that turned out to be the most awesomest project vid I've ever seen ... and trust, I have seen many. no, really. [via GetLoFi]


I wrote a couple of weeks ago about the excitement surrounding Clifford Wolf's new freeware OpenSCAD program. OpenSCAD uses a cool keep-it-super-simple approach to 3D modeling, eliminating the resource-hungry what-you-see-is-what-you-get (WYSIWYG) editing environment favored by most 3D modeling packages, and replacing it with a text-based scripting environment in which models are programmed, instead of sculpted. Basically, you write a script describing your model's shape and then compile it to produce the actual model, which is then rendered onscreen and can be exported to STL format for 3D printing or other purposes.
OpenSCAD has two powerful features to facilitate this programming processes. The first is support for so-called "constructive solid geometry" (CSG) modeling, in which complex forms are built up as intersections, unions, and differences of simple primary shapes like boxes, cylinders, cones, and ellipsoids. If you've ever used the ray-tracing program POV-Ray before, this idea will be familiar to you.
The second, less-well-publicized (but perhaps equally powerful) feature of OpenSCAD is "DXF extrusion," in which OpenSCAD will import a 2D drawing in AutoCAD's popular drawing exchange format (DXF) and "extrude" it into the third dimension. OpenSCAD has support for linear extrusion, in which the resulting part has straight vertical sides, and also rotating extrusion, which results in a part with helical sides. Since a large number of models for rapid prototyping are simple extruded profiles, I expect this feature to see a lot of use.
In this tutorial, I'm going to show you how to use OpenSCAD to produce a simple 3D model by extruding a part profile produced in normal drawing software. I use Adobe Illustrator CS3 because I have access to it and am familiar with its interface, but the popular freeware drawing program InkScape will read and write DXF files natively, and there's no reason why it couldn't serve just as well if you prefer it. There are a number of other free and low-cost programs that will export DXF files. OpenSCAD's developer mentions QCAD, which is available from its developer RibbonSoft for €24.

The part I'm making is one of 12 solid pentomino puzzle pieces based on the animals of the Chinese zodiac--in this case, the rabbit or "Z" pentomino. The designs are based on those of Japanese schoolteacher Sabu Oguro as published on p. 40 of Jerry Slocum and Jack Botermans' 1986 book Puzzles Old & New: How to Make and Solve Them, an image of which is reproduced at the top of this article. My original DXF files and the extruded 3D STL files are freely available for download at Thingiverse. This morning at 10 AM PST, Becky Stern will be streaming live video of her MakerBot CupCake CNC machine printing parts from this set, and she and I will be on-hand to chat about the printing process and the models themselves. Becky printed and photographed all the real-world models shown in this article.
Read more of this story at Slashdot.
Yesterday, news broke that insurgents used a $25 application available online to hack into US military drone video feeds, and view, copy, and potentially distribute their contents. Hmmmm... Unauthorized copying of audio and video material? Some on Twitter have suggested that we might just send the MPAA or RIAA after them -- then, for sure we'll at last find Bin Laden. But Wired Danger Room's Noah Shachtman says,
Tapping into drones' video feeds was just the start. The U.S. military's primary system for bringing overhead surveillance down to soldiers and Marines on the ground is also vulnerable to electronic interception, multiple military sources tell Danger Room. That means militants have the ability to see through the eyes of all kinds of combat aircraft -- from traditional fighters and bombers to unmanned spy planes. The problem is in the process of being addressed. But for now, an enormous security breach is even larger than previously thought.Here's the Danger Room article.
Nick Ramage's 'Fingers' exude a certain type of surrealist creepiness … all the while, tapping away out of what seems to be sheer boredom. Makes for an odd sort of tension, no? Those with an extra $730 around can purchase their own from the limited edition over @ Laikingland [via Adafruit]
Read more of this story at Slashdot.
Pringles-can lens extender produces dazzling ultra close-ups for peanuts.
Thanks go to Haje Jan Kamps for the original article in MAKE, Volume 06.
To download The Macro Photography On a Budget video click here and subscribe in iTunes.
Check out the complete Macro Photography On a Budget article in MAKE, Volume 06 and you
can see that in our Digital Edition.

Pringles-can lens extender produces dazzling ultra close-ups for peanuts.
Thanks go to Haje Jan Kamps for the original article in MAKE, Volume 06.
View the PDF of this project. and then subscribe to MAKE Magazine for other great projects
you can do over the weekend.
Read more of this story at Slashdot.
The best secondary customs screening I ever had was in Brisbane. We got off the plane and were directed to secondary. I told the customs guard that Alice was pregnant and he practically ran to get her a chair and a glass of water while we waited. Shortly thereafter, two customs agents came over and asked us a few simple questions ("where are you staying, why are you here?") in a friendly tone and then told us we were done. I thought they were just passing the time of day before the screening -- they were so incredibly nice, the way Canadians are meant to be (except when you cross a border, where they turn into total bastards in the name of ensuring that you don't cheat the government out of its national sales tax).The changes will see passengers again allowed to carry some sharp implements, such as nail files and clippers, umbrellas, crochet and knitting needles on board aircraft from July next year.
Metal cutlery will return to return to cabin meals and airport restaurants following Government recognition that security arrangements must be targeted at 'real risks'.
Carry-on restrictions to be relaxed (via Schneier)
(Image: TSA Screener with Checkpoint Friendly Laptop Case, a Creative Commons Attribution Sharealike image from Mobile Edge Laptop Cases' photostream)
The Copenhagan Wheel recently demonstrated at the Copenhagan Conference on Climate Change is a clever device that can store energy every time you apply the breaks and then reapply it in the form of motor assist as you ascend a hill on your bicycle. Developed by MIT researchers, the Copenhagan Wheel also acquires speed, distance, and direction data from an array of sensors inside the device and transmits it via Bluetooth to the cyclists mobile. [via geekygadgets]
Over the past few years we have seen a kind of biking renaissance, which started in Copenhagen and has spread from Paris to Barcelona to Montreal," says Carlo Ratti, director of the MIT SENSEable City Laboratory and the Copenhagen Wheel project. "It's sort of like 'Biking 2.0? -- whereby cheap electronics allow us to augment bikes and convert them into a more flexible, on-demand system.Read more | Permalink | Comments | Read more articles in Bicycles | Digg this!

The series ran from 2004-2008, cycling through an assortment of writers and artists who've taken Howard's work and paid it great justice indeed. Cary Nord, who illustrated the first three books, set a high standard for the art, devoting himself to a Frazetta-esque attention to anatomy, blood, and action. The writers, meanwhile blended Howard's own storylines with original material that serve to connect one adventure to the next (there wasn't much continuity in Howard's original Conan saga, which ran more like a series of discrete adventures, each intended to stand alone).
As I've noted before, I have enormous affection for Conan; these stories are the origin node of the modern network of heroic fantasy, the original strong brew that has been diluted for a million mighty-come-lately adventures. Howard's muscular prose, his romanticization of "uncivilized" life ruled by passion and honor, and his faultless pacing (when in doubt, insert an epic battle with an army of the undead, a pack of thieves, a gang of ice-giants, or, if necessary, a dalliance with a hot-blooded swordswoman that ends with the two fighting back to back against a pack of lions or similar) make each Conan adventure a perfect, blood-pounding escape.
The comics form is especially kind to Conan. The artists are able to do the heavy lifting of setting the scene and depicting the action, whittling away Howard's prose to the unselfconsciously heroic dialog: blood oaths, curses, seductive grunts, defiant yells.
I devoured all seven volumes in three days, reading one at the office and one before bed every night, waking up my wife to show her particularly gore-spattered panels (she's the illustrator in the family and enjoys this stuff as much as I do). It was just wonderful returning to Conan's world, to the heroic lands I'd lived in in my imagination as a boy.



Read more of this story at Slashdot.
Just posted! Our in-depth review of the Leica X1. Back in September Leica surprised everyone with the announcement of its entirely home-grown large-sensor compact, which combines a fixed 35mm-equivalent lens with an APS-C sensor. Featuring a pared-down design with traditional analogue-style control dials on its top plate for shutter speed and aperture, the X1 certainly looks desirable on paper, but at an asking price around $2000, can it live up to the inevitable high expectations? We've had our hands on a production X1 for the past couple of months - click through to find out what we thought of it. Comments Off [link]
It's almost a year since we launched the Challenges system on dpreview.com and we've been constantly impressed with the quality of submissions and the imagination of the challenge hosts. To showcase this talent and imagination, we're running a 'Challenge of Challenges,' to find the dpreview.com Picture of the Year. All previous challenge-winning images have been automatically entered and voting starts immediately so, if you've been as impressed as we have, make sure you show it by helping to choose 2009's best challenge-winning image. Comments Off [link]
Read more of this story at Slashdot.
Adobe has launched Photoshop Camera Raw 5.6, Lightroom 2.6 and DNG Converter 5.6 for immediate download. Release candidates of all three had already been available from the Adobe's Labs site. The updates fix minor issues and provide additional Raw support for 20 more DSLRs, including the Canon EOS 7D and Nikon D3S, with additional DNG support for the Leica M9 and Ricoh GXR. Comments Off [link]

Bridging the gap between the "real world" and your computer, the Advanced Arduino Starter Kit from the Maker Shed takes you further into the world of physical computing. We've included all sorts of cool electronic parts this time, along with our best selling Making Things Talk book by Tom Igoe. You'll experience what the tens of thousands of engineers, designers, artists and hobbyists already know about this awesome and educational prototyping platform.
In the Maker Shed:
![]()

Make: Arduino
Read more of this story at Slashdot.
Read more of this story at Slashdot.

Spite house (Thanks, Ape Lad)
(Image: File:AlamedaSpiteHouse.jpg, Creative Commons Attribution ShareAlike, Wikimedia Commons)
Read more of this story at Slashdot.
Google didn't matter because Google is a file cabinet of the past. Yes, we know that supposedly this week Google Real Time Search is launching and it will be the next great thing. We also know there are Google Alerts that help us stay current. But there was no real time search or alert that helped us on Saturday, December 5, 2009. Now Google documents were great (we used Spreadsheets) and Google Maps with Street View was indispensable. But Google's main function, it reason for being, was 100% irrelevant. Google is great for looking at yesterday. In its current form, Google is a complete failure for looking at today. And when I mean today I do not mean today's Wall Street Journal or Techcrunch as arguably those are both looking at history as well. I am talking about what is happening right now, this moment. And do you want to know the best place to find out what is happening right now? Twitter Search.Perhaps that changes (as noted) with Google's real time search offering, but it is notable. Google positions itself as wanting to be the place where you can find any relevant information, but that information is backwards looking.
Darren sez, "A terrific montage of those 'can you clean that up a little' moments in film and TV. You know the trope: when back at the lab, some nerdy technician spouts technical gobbledygook and uses some fancy version of Photoshop to improbably improve the quality of some grainy security footage."
My favorite one of these -- I think it was in Enemy of the State? -- was two supercops looking at a satellite image of a terrorist standing on the roof of a building, and one says to the other, "can you rotate the picture so we can see his face?" I was waiting for the other guy to say something like, "sure, I'll just rewrite the fundamental laws of the universe so that cameras from overhead satellites can see around corners," but no, he did it. As the lady said of Meg Ryan, "I'll have what he's having."
New discovery may help deal with bedbug infestation (Thanks, Steve)According to lead researcher Camilla Ryne, bedbugs are notoriously undiscerning about who they mount, and are accustomed to stab their penis straight into another male's abdomen...
Males with blocked glands were mounted as often as other males, but for longer and suffered more wounds.
"This is the first time I've seen an alarm pheromone used as a sexual one," New Scientist quoted Ryne as saying.
(Image: 98221_hires.jpg, a Creative Commons Attribution photo from liz.novack's photostream)
Chkdsk red in tooth and clawI. Exordium. The narrator introduces himself, establishes his experience in computing (ethos) and exhorts the listeners to gather round.
II. Prolegomenon. Customarily, the hardware spec of the machine is outlined here.
III. Praeinstallatio. The narrator describes his initial attempt to install Windows.
IV. Contrainstallatio. The installation goes wrong.
V. Descendo. The narrator describes his increasingly desperate attempts to get things to go right.
VI. Depilatio. The narrator is reduced to despair and frustration.
VII. Inertio. The narrator sinks into a horrified stupor as his machine gurgles and clunks to itself for anything up to three days.
VIII. Peroratio. The narrator rises into fury as he describes how long and painful an experience the install was;
which may be followed by
IX. Aptenodytes forsteri, the narrator switches to Linux.
(Image: Frustration!, a Creative Commons Attribution photo from basykes' photostream)
Read more of this story at Slashdot.
One data-point: I wrote a short story for Communications of the ACM that they were supposed to put on their website for free more than a year ago, and they still haven't figured out how to do this; they say that their website back-end makes it impossible to flag articles as open access.The ACM has no legitimate needs or interests other than those of its members! How would U.S. voters react to a Senator claiming that a given piece of legislation (say, one reducing restrictions on campaign financing) "strikes a fundamental balance between the needs of the Senate and those of the United States of America"? ACM has lost its way, profoundly and tragically.
As much as Mr. Rous would like to think otherwise, ACM's publishing program is not an end in itself, but a means to an end. ACM arguing that an open repository of papers would be harmful because it "undermines the unique value" of ACM's closed repository is like the Salvation Army arguing that a food stamp program is harmful because it "undermines the unique value" of their soup kitchens.
US Gov Requests Feedback on Open Access - ACM Gets it Wrong (Again)

Copenhagen before and after (Thanks, Carsten)
Game Theory - The Art Of Acting Rational (Thanks, Dad!)You are in a game show with nineteen other players. You don't know the other players, you can't see them, and you can't communicate with them. The game you are in is called 'Greed!', and is straightforward to explain. You are asked to write down a whole dollar amount in the range $1 - $1,000,000 on a piece of paper. You will be paid the amount you asked for if it is deemed to be 'non-greedy'. Whether your request is indeed 'non-greedy' will be decided once all twenty request have been received by the host of the show. Your requested amount will be labeled 'non-greedy' if no other player has asked for less, and at least one player has asked for more.
How do you play?
(Image: Money!, a Creative Commons Attribution photo from yomanimus' photostream)
The Court reiterates that freedom of expression constitutes one of the essential foundations of a democratic society and that, in that context, the safeguards guaranteed to the press are particularly important. Furthermore, protection of journalistic sources is one of the basic conditions for press freedom. Without such protection, sources may be deterred from assisting the press in informing the public on matters of public interest. As a result, the vital "public watchdog" role of the press may be undermined and the ability of the press to provide accurate and reliable reporting may be adversely affected. Having regard to the importance of the protection of journalistic sources for press freedom in a democratic society and the potentially chilling effect that an order for disclosure of a source has on the exercise of that freedom, such a measure cannot be compatible with Article 10 unless it is justified by an overriding requirement in the public interest.This is definitely a good thing, and a bit surprising, since Europe has, in the past, often been a bit less protective of the right to speak anonymously.

Twenty years ago today, the first full-length episode of The Simpsons -- known as The "Christmas Special" -- aired on television. This episode was originally intended to be show number 8, but ended up being first after a series of production glitches and switches. You can find streamable copies around the internets.
I've been traveling in rural, indigenous communities in Central America this week. I was reminded of the awesome happy-power and transcultural reach of the Simpsons in a conversation last night with an 8-year-old K'iche Maya kid. He lives in a highland village. His family is too poor to own a TV, but we got to talking, and he volunteered out of the blue his love for the show. He knows exactly who his favorite character is, too: "Omero" (Homer). He's a shy, quiet, serious boy, but lights right up when he's talking about the Simpsons. Pretty cool to think that a show could delight so many around the world, for so many years.
A special holiday shout-out to David Silverman, a personal friend who also happens to have been the director of that very first episode (and, of course, many others, and that movie). David, I hope you're having a more relaxed December than you did in 1989.


Drone hacking? Really? With off the shelf software?
Militants in Iraq have used $26 off-the-shelf software to intercept live video feeds from U.S. Predator drones, potentially providing them with information they need to evade or monitor U.S. military operations. Senior defense and intelligence officials said Iranian-backed insurgents intercepted the video feeds by taking advantage of an unprotected communications link in some of the remotely flown planes' systems. Shiite fighters in Iraq used software programs such as SkyGrabber -- available for as little as $25.95 on the Internet -- to regularly capture drone video feeds, according to a person familiar with reports on the matter.SkyGrabber is software that's usually used to download movies from satellites. It appears you can just hook it up to a satellite dish for for its "connection" and you're off. Instead of downloading the latest Vampire movie, you could get video feeds from the drones. Wild.
In the MakerShed

ArduPilot is a full-featured autopilot based on the Arduino open-source hardware platform. It uses infrared (thermopile) sensors for stabilization and GPS for navigation. Requires a GPS module and an infrared XY sensor (not included). The autopilot handles both stabilization and navigation, eliminating the need for a separate stabilization system. It also supports a "fly-by-wire" mode that can stabilize an aircraft when flying manually under RC control, making it easier and safer to fly.
"It doesn't make sense to try to charge people for something that they will figure out how to get for free. F1 will be available on the internet and you need to be prepared for that. The challenge is not in deciding what you give away for free but in deciding what sort of value you're going to provide on top of that -- elements that people are actually willing to pay for."Bingo. It's exactly what we've been saying about so many industries, but too many of them focus on the core content and assume it must be sold. Instead, Formula 1 seems to realize that the core content is going to be free, so you need to focus on providing additional scarce value on top of that which is worth paying for.
Read more of this story at Slashdot.

Our latest book, Make: Electronics, has been selling like hot cakes (do hot cakes really sell that well, BTW?), so much so that the conveyor belts were empty for awhile and our mechanical maker elves had nothing to box up and ship. The engines of commerce are once again in motion and there's still time to get the book for the holidays, even with free shipping (until midnight tonight PST, for orders of $175 or higher).
We thought you might also like to see a complete list of experiments/projects in the book. There are 35 in all:
Experiment 1: Taste the Power!
Experiment 2: Let's Abuse a Battery!
Experiment 3: Your First Circuit
Experiment 4: Varying the Voltage
Experiment 5: Let's Make a Battery
Experiment 6: Very Simple Switching
Experiment 7: Relay-Driven LEDs
Experiment 8: A Relay Oscillator
Experiment 9: Time and Capacitors
Experiment 10: Transistor Switching
Experiment 11: A Modular Project
Experiment 12: Joining Two Wires Together
Experiment 13: Broil an LED
Experiment 14: A Pulsing Glow
Experiment 15: Intrusion Alarm Revisited
Experiment 16: Emitting a Pulse
Experiment 17: Set Your Tone
Experiment 18: Reaction Timer
Experiment 19: Learning Logic
Experiment 20: A Powerful Combination
Experiment 21: Race to Place
Experiment 22: Flipping and Bouncing
Experiment 23: Nice Dice
Experiment 24: Intrusion Alarm Completed
Experiment 24: Magnetism
Experiment 25: Tabletop Power Generation
Experiment 26: Loudspeaker Destruction
Experiment 27: Making a Coil React
Experiment 28: Filtering Frequencies
Experiment 29: Fuzz
Experiment 30: One Radio, No Solder, No Power
Experiment 31: A Little Robot Cart
Experiment 32: Moving in Steps
Experiment 33: Hardware Meets Software
Experiment 34: Checking the Real World
Experiment 35: The Lock, Revisited
In the Maker Shed:
![]()


Make: Electronics
Our Price: $34.99
Want to learn the fundamentals of electronics in a fun and experiential way? Start working on some excellent projects as soon as you crack open this unique, hands-on book. Build the circuits first, then learn the theory behind them! With Make: Electronics, you'll learn all of the basic components and important principles through a series of "learn by discovery" experiments. And you don't need to know a thing about electricity to get started.
Here's an update on the arrest of Frank Frazetta's son, who was charged with swiping at least $20 million of his father's paintings last week. The story has a few twists and turns, as you might imagine in a case in which an adult child has been accused of ripping off his own parent.
The details are fuzzy, but it sounds like Frazetta's adult children are fighting over the art created by their father, who is 81 years old and has dementia. Three of his children apparently want to sell the paintings (one painting recently went for $1 million, and it wasn't even one of Frazetta's most famous works) while Frank Jr. apparently doesn't want to sell them off, and that's why he broke into the family museum to take the paintings.
Heidi MacDonald of The Beat adds this important bit:
The REAL bombshell, however, comes from a notary who says that Frank Frazetta Sr. came to her nine days before the aborted heist and asked her to notarize a power of attorney removing control of the art from Bill, Heidi and Holly and giving it to Frank Jr! “He was in the right frame of mind,” said the notary.Frazetta Heist update: Notary drops bombshell

This five-piece farmer's market stand comes together easily without any tools and provides vendors plenty of space to sell local goodies. It's by Jonathan Bancroft Colon and it aptly named the Bancroft Market Stand. [via Core77]
Read more | Permalink | Comments | Read more articles in Furniture | Digg this!
New York magazine breaks down the menu at Balthazar, with help from author William Poundstone, to show you how tricks of typography make a difference in what you choose to eat (and pay for).
Columns Are Killers According to Brandon O'Dell, one of the consultants Poundstone quotes in Priceless, it's a big mistake to list prices in a straight column. "Customers will go down and choose from the cheapest items," he says. At least the Balthazar menu doesn't use leader dots to connect the dish to the price; that draws the diner's gaze right to the numbers. Consultant Gregg Rapp tells clients to "omit dollar signs, decimal points, and cents?...?It's not that customers can't check prices, but most will follow whatever subtle cues are provided."
New York Magazine: Menu Mind Games
Can a world without newspapers survive? Sure, says The Economist. What matters is the availability and quality of the news, not the medium that delivers it.