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The latest issue of Scientific American has been released, with details and free content available at the Sciam website. Free articles available from the May 2005 issue include Michael Shermer’s Skeptic column on pattern recognition in ‘white noise’, is CSI setting the bar too high for real-life prosecutors, and Build Your Own Black Hole 101. The cover story for this issue (which is not free) is on neuromorphic microchips: compact electronics based on neural wiring could yield implantable silicon retinas to restore vision, as well as robotic eyes and other smart sensors.