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Communications

Guerrilla wifi for taking the squares->

Submitted by Jisakiel
Jisakiel writes "A recent uprising of indignation in Spain and Greece has resulted in a significant number of squares being occupied by campings. The number of attendants makes the usual GSM/3G networks or donated neighbour wifis very unstable because of spectrum saturation, which makes communicating with the outside very difficult.

So far there have been several imperfect solutions such as 5ghz links bouncing to nearby streets, or directional high gain antennas — all of which become single points of failure and tend to lose link or uplink often.

Is there a viable setup to aggregate several bandwidth sources in an unstable and rapidly changing topology — such as several wifis and a 3G backup -, to achieve stable connectivity?"

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Space

The most distant object in the Universe. Maybe.->

Submitted by
The Bad Astronomer
The Bad Astronomer writes "A gamma-ray burst seen in 2009 may be the single most distant object ever seen. If the estimates pan out, it's at a whopping 13.4 billion light years away. The estimates look good, though the exact distance isn't known. If it holds up, this explosion occurred when the Universe was only 2% of its current age."
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Education

Recommendations For C++/OpenGL Linux Tutorials? 117

Posted by timothy
from the no-you-guide-me dept.
QuaveringGrape writes "After a few years of Python I've recently been trying to expand my programming knowledge into the realm of compiled languages. I started with C, then switched over to C++. A friend and longtime OpenGL programmer told me about NeHe's tutorials as a good step after the command-line programs started to get old, but there's a problem: all the tutorials are very Windows-based, and I've been using Linux as my single platform for a while now. I'm looking for suggestions for tutorials that are easy to learn, without being dumbed down or geared towards non-programmers."

Envy is a pain of mind that successful men cause their neighbors. -- Onasander

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