Microsoft’s Kinect Sensor is a nice peace of Hardware and considerably cheap for a camera that also provides a 640×480 depth image. Soon after it appeared on the market in November 2010, it was reverse engineered for users to interface it from the computer without the Xbox 360.
Technology Enthusiasts and Roboticists all over the world picked up a Kinect to see what they can do with it. My personal motivation is to improve Perception for my Service Robot. Shortly after the publication of the Kinect Hack, Microsoft and PrimeSense decided to release an official SDK: the OpenNI Framework.
Eric Butler published an easy to use Firefox extension which captures session cookies from broadcast media such as public wifi networks. It allows anyone, to collect Facebook, Twitter, Flickr, etc session cookies and do anything with these accounts with just a click.
I hope social network providers start implementing end-to-end encryption via https soon. Until then, be careful from where you access your social networks. On the other hand easy identity stealing brings social networking to a new level. 😉
This year’s Intel Developer Forum from September 13th to 15th was all about Data Center Applications, Cloud Computing, and Embedded Systems. I was happy about the opportunity to present a Poster about my Leonardo Robot Project in the academic track. The conference was accompanied by Intel’s AppUp Elements developer meeting which occurred for the first time this year.
iChem is a case study to bring aquatic chemistry calculations on the iPhone to the classroom. The computational nature of aquatic chemistry lends itself well to the iPhone platform and by providing students with a simple means of performing laborious calculations, the underlying chemistry of the problem being studied can be the primary focus rather than the calculations.
The application features Activity Coefficient, Ionization Fraction and Equilibrium Constant computations. The goal is to provide a user friendly tool for chemistry students, which enables them to quickly solve standard computations on their fingertips. The tool will be made available to the public, soon.
 Martin Wojtczyk, Mark A. Nanny, and Chetan T. Goudar. Aquatic Chemistry on the iPhone: Activity Coefficient, Ionization Fraction and Equilibrium Constant determination. In 239th American Chemical Society National Meeting & Exposition, San Francisco, USA, March 2010.
The Wii Remote got plenty of attention among Roboticists to improve Human-Robot-Interfaces and to lower anxiety for complex machines. Therefore I implemented WiiDrive for the Leonardo Robot Project. WiiDrive is a Wii Mote Control application to enable anybody to move the Leonardo Robot, without typing complex commands at the keyboard (see Video).
Recently my SonyEricsson cellphone broke and I wanted to replace it by my Bluetooth enabled Motorola C390. Apple’s iSync is really great to keep your address book and calendar in sync with your cellphone. Unfortunately the C390 is not supported by default. Your Mac can pair with the phone and use it for data connections but iSync does not support it, see .
There seem to be some commercial solutions which may help, though I didn’t test one of them, just search the web for iSync and C390 and you will find them.
Luckily I also found this guy’s Howto in a forum about adding Motorola C390 support to iSync for free just by modifying a xml file . However, since I am running Mac OS X 10.4.9, I recognized slight changes in the xml tag names. That’s why I noted the instructions below.
I have this 2005 12″ PowerBook G4 with Mac OS X Tiger 10.4.9 and was jealous of the new MacBooks’ Remote Controls. One day I found a movie on youtube about someone controlling Front Row with a Wiimote. I just didn’t find all the links in one place. Maybe this is of help for you. It should work on other Bluetooth enabled Macintosh computers as well.
1. Get Front Row to work on a Mac without Remote Control
Recently it happened to me, that I removed a nVidia 3D accelerated graphics card from my computer which was supported by nVidia’s driver and I wanted to switch back to the integrated graphics chipset which is supported by X.org. However the nVidia driver, which usually comes as a package like NVIDIA-Linux-x86-x.x-xxxx-pkg1.run, has overwritten some libraries and header files so that just changing the driver name in /etc/X11/xorg.conf worked for 2D modes, though OpenGL did not work because some of the X servers lbraries and header files were replaced. Furthermore there was no uninstallation procedure included in the driver package which I had (Version 1.0-7676).
Luckiliy the nVidia installer left a log of the files which were added or replaced in /var/lib/nvidia/log. You may want to delete the mentioned files manually and reinstall the x.org and mesa packages of your distribution to make sure the OpenGL libraries and headers are restored.
Afterwards the X server should work fine again – 3D including.
When I tried to compile Xerces-C++ Version 2.6.0 from source on Mac OS X Tiger 10.4.2 with gcc-4.0.0 the compiler complained:
MacOSUnicodeConverter.cpp:78: error: 'static' may not be used when defining
(as opposed to declaring) a static data member
MacOSUnicodeConverter.cpp:84: error: 'static' may not be used when defining
(as opposed to declaring) a static data member
make: *** [MacOSUnicodeConverter.o] Error 1
make: *** [transcoders] Error 2
make: *** [Util] Error 2
The solution is easy, just delete the word static in the source code manually and build again or use this patch: