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We round up this week's most intriguing items from around the Web.
Well-trained device takes small steps for an aging mankind.
Diagonal wiring promises to bring cheaper, faster and smaller chips.
Within a few years, DNA microarrays could help diagnose and treat this killer, perhaps even before tumors form.
Tiny viruses living off bacteria could show the way to a new class of antibiotics.
A juggling unicyclist transformed "information" from a vague idea into a precise concept that underlies the digital revolution.
A magnet and radio signals detect brain activity.
Better methods for finding a face in the crowd.
But it's taken Paul Zamecnik's idea a long, long time.