Photo of the Day

Associated Press
In this photo made Thursday, Jan. 24, 2013, in Chicago is the CAVE2 "wand." The wand and a pair of 3D glasses enables viewers inside CAVE's 72 stereoscopic liquid crystal display panels encircling the viewer 320 degrees, the ability to control movement in the 3D environment that can take you to the bridge of the Starship Enterprise, a flyover of the planet Mars, or through the blood vessels of the brain.  (AP Photo/Charles Rex Arbogast)

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