Take a look at this very cool image of the Earth at night (thumbnail above)
http://incredimazing.com/page/Earth_at_Night-686
The different colors are different sources of light - red is wildfire, purple/yellow is city light, green is natural gas flares, and blue is fishing fleet lights.
The image cites NASA’s Visible Earth 2001 as the source of the map, and the Defense Meteorological Satelite Program as the source for the light data.
Although not exactly a computer tech post, I think this is at least just as important, if not more so 
Besides, a computer is only as good as the commands and programs that the end users tries to run on it.
“New research conducted by brain researcher Avi Karni of the University
of Haifa in Israel explores the possibility that naps help lock in
sometimes fleeting long-term memories. A 90-minute daytime snooze might
help the most, the study finds.
“We still don’t know the exact mechanism of the memory process that
occurs during sleep, but the results of this research suggest the
possibility that it is possible to speed up memory consolidation,”
Karni said. “In the future, we may be able to do it artificially.”"
Read more about these promising developments, and what you can currently do to help improve your memory, and feel better and more awake, here :
http://www.livescience.com/health/080107-90-minute-nap.html