Zero Day posted a list of tools and applications that were released at Defcon 16. The applications run the gamut, from Beholder, an open source wireless IDS tool, to CollabREate, a reverse-engineering plugin that allows multiple people to share a single project. The list covers a lot of ground, and there's a lot for hackers to play around with and explore. It's nice to see someone bothering to maintain a list since the majority of conference tools just get lost in the shuffle and are never seen again.
[Richie Brown] created an electric mannequin leg maraca. The leg is filled with little bits of plastic, metal, and wood. Hook it up to a looping pedal, add a piezo disc mic, and you've got an unusual instrument with a lot of potential. [Brown] has other projects that encourage interaction and invite curiosity, from disembodied mannequin parts to repurposed piano keyboards. The creations come attached with contact mics that pick up noises as people touch, poke, and play around with them.
There's still time to enter io9's Build a Lifeform contest. Synthetic biologists, get cracking on the design of that synthetic lifeform or BioBricks lifeform! The rules are pretty straightforward; you need to propose a lifeform design that would be scientifically viable. The BioBricks lifeform part of the contest requires that your design needs to not only be scientifically viable, you have to explain how you would create it in a lab, and you get extra points if you already have an organism. The deadline is August 25, 2008. You could win the opportunity to attend an all-expenses-paid trip to the Synthetic Biology Conference in Hong Kong or $1000 and a chance to get your creature drawn by a cool comic book artist.
And now, for your amusement, we present to you a navigation system from the 1920s. It's not so much a satellite navigation system as it is a tiny map mounted in a wristwatch, but for the available technology of the era, this was a pretty ingenious invention, Other (and somewhat more bizarre) entries on this list of over a dozen other inventions from the early part of the 20th century include a finger stretcher, an eyeball massager, and mustache guards. Although most of these inventions seem laughable today, they are an interesting study in finding creative solutions to real problems. After all, what these inventors did a hundred years ago with gears and paper is pretty much what we do today with transistors and LEDs.
[toymotorhead] pieced together this USB controlled power strip to help with his electrical bill. His goal was to be able to have devices turned off automatically when he shut down his computer as well as powered on when he turned his computer on. Another requirement was that the USB be isolated to protect the motherboard from spikes.
The cost of the parts in total were less than $30, and consisted of a solid state relay, some fuses, and some transient voltage surge suppressing diodes. The unit only switches power off or on depending on whether or not the computer is powered up, it doesn't control the outlets via software. He goes pretty in depth as to how everything works as well as showing nice diagrams and pictures. This should be a fairly quick and simple project, as long as you take the proper precautions for working with high voltage.
Picture this scenario: it's 2 AM, you're stuck somewhere you'd rather not be, and you've lost your car keys. If you can't call the Auto Club, what do you do? Hotwire your own car, of course. Wired.com has a wiki article detailing all the things you need to do to get that car running: how to identify which wires to connect, potential pitfalls of newer cars that require an RFID chip in the key, and so on. Of course, hotwiring a car that doesn't belong to you is illegal, but this is one of those skills-like lockpicking-which just might come in handy in an emergency.
Hacks come in all forms, and psychological hacks are no different. [Noah Goldstein], a behavioral scientist at the University of Chicago, has written a book in which he details scientifically proven methods of persuading others. One of these methods stands out as being particularly useful at alleviating one of the most aggravating aspects of modern life: dealing with customer service representatives over the telephone.
The trick? Be nice, compliment the rep on doing a good job, and offer to write a letter of recommendation. Since it stands to reason that the customer service rep is probably having a crappier day than you (imagine having to talk to a hundred annoyed people five days a week and you'll get the idea), making the rep feel appreciated is likely to make them want to do more for you in return.
[toelle] has shown yet another use for the Wiimote by having it auto aim his USB missle launcher. The bill of materials is pretty simple: a Wiimote, a motorized USB missile launcher, some duct tape and glovepie.
Simply tape the Wiimote to the missile launcher, install glove pie and follow his instructions for some custom code and off you go. He goes in depth on how to connect the Wiimote to the PC, as well as details on how the custom code works. It only tracks IR targets right now, which is a bit of a bummer, but that would see TV remotes right?
Check out this awesome tool that [Alfonso Martone] built and wrote in to tell us about: a pin plotter made entirely from Lego (except for the addition of a pin in one brick). [Alfonso] has managed to get 33dpi resolution with a "printable" area of 90x70mm. The NXT device reads 1bit bitmapped images in PBM format and outputs onto a sheet of paper, which is held in place by Lego pneumatics pushing against rubber Lego bricks. Output is not what you might call speedy, though: it takes 35-40 minutes to output a drawing with 1,500 holes.
Scientists at the University of Reading have created a robot that runs not on microprocessors, but on brain cells extracted from a rat fetus. The robot is equipped with several sensors which stimulate the rat neurons whenever the robot approaches a wall; the response of the neurons then determines whether the robot avoids the wall or crashes into it. The truly fascinating bit is that the rat brain cells don't automatically know how to respond to the stimuli from the sensors, but instead learn to respond appropriately through repeated stimuli.
No word yet on whether the scientists will teach the robot to sing "Despite all my rage / I am still just a brain in a vat".
If you've been puzzled over a discreet, durable way to sew wiring into your clothing, then puzzle no more: [Plusea] has put together a writeup detailing how to make a USB cable partly out of stretchy cotton fabric. Although the design as detailed doesn't give much practical use for the invention, we can think of several very effective ways of exploiting this toy. Imagine, for example, placing a USB battery pack into one pocket of a jacket, a portable digital audio recorder in the other, and a lavalier microphone in the lining, thus enabling dozens of hours of covert audio surveillance.
A new Discovery Channel show titled Prototype This! will debut on October 15, 2008. Hoping to capture the same demographic as Mythbusters' audience, the show is about designing and creating robots, gadgets, and other things that nerds will love. Prototype This! is hosted by four wide-ranging experts: [Zoz Brooks], who's got a PhD in robotics, [Mike North], who also has a PhD, in material sciences, [Terry Sandin], a special effects veteran of the Hollywood film industry, and [Joe Grand], who we've covered recently for his Defcon badge work. [Daniel Terdiman]'s glimpse behind the scenes reveals some interesting projects, from a stair-climbing robot to the creation of a pyro pack. We'll be sure to set our DVRs to record.
PoiPlay is an elegant mix of new technology and traditional medium. Poi, Maori for ball, is a traditional form of juggling originating in New Zealand. In poi, a ball at the end of a rope or chain is swung in circular motion to develop visual patterns. Often augmented by flame, and more recently LEDs and glow sticks.
The PoiPlay device has 28 RGB LEDs in a 1 foot long enclosure at the end of a rope. They have a 1mbit per second bidirectional wireless interface, three Atmel processors, a lithium ion battery, and a charger. The base station controls not only the PoiPlay but the music as well. All the control software that resides on the PC was written in Perl and communicates via USB port under Cygwin.
They have built the devices to be individually addressable with the capability of being grouped by subnet. This feature isn't supported by the software yet, but they say it should be done by the next show in 2009.
The site, while pretty offers very little information. Some construction shots would be fantastic. Go check it out though, the pictures are mesmerizing.
[jonboytang] documented his construction of a clone of the famous Tube Screamer overdrive pedal from a set of plans found at tonepad. The tonepad site says you can use the plans to build either a TS-9 or a TS-808, both of which have been classic staples in every guitar player's setup since the 70s. Although the old parts are no longer available, these new variants still have a really nice sound.
This project is really just a look into [jonboytang]'s etching and enclosure building process, but it may be useful for someone. The build and the circuit look really simple so this would be a great project for guitar players looking to learn how to etch their own PCBs. If you need more information on etching, we would suggest starting out by reading our How-To on etching single sided PCBs. If you are lazy and would rather spend a little money, check out tonepad's online store. They have a board for this project and many others.
Some of us need a little help keeping our green leafy friends happy. The Arduino Tux (translated) plant care system was built to make things a little easier.
The author had a broken tux toy laying around and wanted to do something fun with it. He cut a hole in the front to mount an LED matrix and connected it all to an Arduino. A couple of metal rods serve as a resistivity sensor in the plant's dirt.
When you water the plant, tux flashes some hearts and a smiley face. As the moisture drops, tux gets less happy with the end result being a big frown.
