A while ago, I wrote a short blog post on white noise and binaural beats over at my New Urban Music Blog (German). This peculiar aspect of psychoacoustics is pretty fascinating. Some people use techniques like this to better meditate or concentrate. There is an online white noise generation tool called Simply Noise, so you can get a basic idea of what it's all about.
There are many controversial, alleged uses for binaural beats. Some researchers report that they can influence brain waves and thus help to reduce anxiety. For an introduction on the topic, please read the Wikipedia entry. Binarual beats are also part of a presentation Mitch Altman gave at the 24C3 in Berlin three years ago.
The reason I'm telling all this is that I just found out about the existance of Gnaural, an open source binaural beat sound generator for Linux (and other OSs). Here is a tutorial on how to install it on 32bit Ubuntu systems. If you, like me, have a 64bit system, you might want to follow these instructions. Gnaural offers many options to tweak the generated sound to your preferences, making it easy to experiment with a wide range of differenct noises. Personally, I'm not convinced yet of the method's beneficial aspects, but it's an interesting field if you want to try out some lifehacking 
It's been a while since I tinkered with this little blog of mine. Today, I finally managed to update Serendipity to the most current version. And while waiting for the files to upload, I checked for new templates because a fresh look might do no harm. That's when I found out about Sagittarius-A, a very clean template that was ported to Serendipity not long ago. I fell in love (well, almost) with it instantly. And as usual, switching themes was hassle-free!
I will try to pay a little more attention to this blog in the future, blogging about a more diverse range of topics again, covering not only BarCamps and web stuff, but maybe something more personal, too. The World Cup 2010 will start in a couple of days, so why not share my thoughts on it here? I will keep up the peculiar German-English dichotomy, though, blogging about the more personal stuff in German and reserving English for web and technology related posts.
One more word to my readers: Don't expect everything to work perfect for the next couple of days. There seem to be some issues concerning some heavy modifications and the new layout. But it will smooth out soon over the next iterations. I will also try to implement a couple of new features if I find the time to. In the long run, I even plan to move this whole blog to a different server and even a different or second URL. I still own sperrobjekt.de (without the hyphen, that is) back from the old days. But I have to figure out how to publish that to Google first. Stay tuned!