Brains are the most powerful computers known. Now microchips built to mimic insects' nervous systems have been shown to successfully tackle technical computing problems like object recognition and data mining, researchers say.
The light at the end of the tunnel. An out-of-body experience. Your life flashing before your eyes. According to Scientific American's Charles Q. Choi, 3% of Americans have had a near-death experience; now scientists are beginning to unravel the biological roots of these experiences.