As we watched the video after the break a lot of questions came to mind. What kind of angle do these Ping sensors have? Will there be interference problems if they were placed perpendicular with each other? Would you get more accurate data if they were not both on the top of the screen? For now this is just a preliminary experiment, but we like the concept and may give it a try ourselves.
Motorized treads as a replacement for the heel of your shoe? Okay, remember how The Jetsons had moving sidewalks everywhere so you wouldn’t have to walk at all? Well, there’s a much more efficient way to do it and Treadway Mobility seems to have figured it out. In the video after the break you can see several of their prototype units zipping the wearer around quite happily. We think the best part is that with the tread locked in place you can stand and walk like normal, assuming you don’t feel like you have a block of concrete attached to each foot. Maybe the real question is which is more geeky, this or the power lace shoes?
[Debraj Deb] put together a current monitoring device that interfaces with the circuit box at his house. The system is controlled by a PIC 18F4520 and uses an LM358 Op-Amp to rectify the AC signal, as well as an MCP6S21 for range adjustments for detecting both high or low current loads. The data displayed on a character LCD includes average, RMS, and peak current. For now the data is saved to an EEPROM and can be dumped using a serial connection but [Debraj] plans to add a GSM modem so he can send energy use data to his cell phone.
We got a copy of the book and have been getting lost in the seemingly endless illustrations. We highly recommend that you do so as well, if you have any interest in building from scrap, or unique structures. Even if you aren’t that interested in construction, the eclectic style and humorous rants about waste might just be enough to keep this book around.
Considering how hackable the Nexus One is already, we can only imagine a whole new host of interesting things thanks to Ubuntu running on the device. [Max Lee] set his heart out on getting not just Ubuntu on the Nexus One, but also Debian, and he wrote a perfect install guide to help out those wanting to give it a shot.
He cheated a little bit by having Ubuntu run in the background while the X11 interface is simply VNCed, but he still did an awesome job with plenty of pictures and details to help you achieve Ubuntu on your Nexus One.
This multi-layer display uses droplets of water as a projection medium. This way, several different projected areas can be seen for a not-quite-3D layering effect. The trick is in syncing up all aspects of the apparatus. There are three manifolds, each with 50 stainless steel needles for water drop production. A solenoid valve actuates the drops, a camera images them mid-air, and a computer syncs the images of the dots with a projector. In the video after the break you can see the SIGGRAPH 2010 presentation that includes a description of the process as well as action shots including a 3-layer version of Tetris.
A student team at University of Massachusetts have built this wireless face tracking camera system. Using a small 2-axis motorized camera meant to be mounted on model airplanes, an arduino, and some custom software, they can track faces and keep them in frame in real-time. This is pretty cool, but maybe not quite as groundbreaking as they make it sound. We think it is pretty awesome though. You can download the software and schematics on their site.