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Photos: Tracking Last HOPE hackers

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• At Last HOPE conference, everyone can hack it

July 21, 2008 1:02 PM PDT

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Altman's other popular device at Last HOPE was the Brain Wave Generator, a microcontroller-driven pair of special glasses with sound and lights that can create an altered state of consciousness, put one in a trance, or just serve recreational purposes.

Photo by Elinor Mills/CNET News

Caption by Elinor Mills

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