Shockwave Theory applied on Traffic Jams

October 6, 2008

Japanese Scientists executed an experiment to demonstrate that some Traffic Jams can appear from nowhere due the shockwave principle. It’s amazing how the variation of speed may induce a complete stop on the traffic.


XBMC, the solution for a media center

October 5, 2008


Last week Murillo told me about the XBMC project and since my media center was lacking of a good software to browse my collection I decided to install it. My set up is composed by a Mac Mini running Mac OS X. Front Row is terrible, it does not support a lot of formats and some media codecs are very slow.

My first impression on XBMC was very good. The interface is totally eye-candy with support for skins and other customizations. The support for file formats and codecs are so extensive that if I had to describe it here I would spend a lot of time ;). But, for my purpose it only have to play mkv (matroska) in 720p smoothly, which it did flawless.

Also, the support for plugins and scripts enables the XBMC to play YouTube videos, download lyrics and subtitles, and much more. And the best thing is that the plugins are written in python!

Of course the XMBC has some issues since it is on a beta version. I witnessed some freezes on playback and on some scripts. Also, the navigation using mouse is not fully operational (at least on the skins available). Some subtitles don’t work very well and are not displayed.

Check out the project at .

Video: Airtraffic density over 24h, just crazy!

September 27, 2008

This video on YouTube shows the air crafts on the world over a period of 24 hours.

It is amazing and terrifying. The amount of information required to manage all those air crafts is so huge, that even the smallest mistakes may lead to huge accidents.