A past time of mine recently has been searching the web for cool wallpapers. It started when I came across one of NASA’s astronomy pictures of the day (still my current favorite wallpaper). After looking through NASA’s archive, I moved on to Flickr and other sites. Below is a collection of some of the cool wallpapers I’ve found, and some of the sites I collect wallpapers from.

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Two malls in the UK have installed monitoring devices that track people by monitoring their cellphones. By picking up the signals from their phones, the devices can track which stores people enter and how long they stay.

Although these statistics could prove useful for the mall and it’s retailers, it is an obvious privacy concern. It will be interesting to see if the technology spreads or is imported to the states.

I found this on Digg today and it’s the most powerful thing I’ve stumbled upon on the web in quite some time. This isn’t for the faint of heart as some of these images are very graphic. Below is a sample of some of those images, but you should visit the site to read the descriptions accompanying the photos.

Bacteria that was extracted by scientists from the oldest known ice on earth is alive and growing. This means that ancient bacteria and viruses will come back to life as ice melts around the world as the globe heats up. Scientists say not to worry as they believe these viruses would not pose a threat to humans. I find it fascinating that this could be accomplished. It makes me feel better for having watched Encino Man too many times as a kid.