"The focal point of the laser beam is guided through the resin by movable mirrors and leaves behind a polymerized line of solid polymer, just a few hundred nanometers wide. This high resolution enables the creation of intricately structured sculptures as tiny as a grain of sand."http://www.youtube.com/watch?v=5y0j191H0kY&feature=player_embedded
By a team at the Vienna University of Technology
Chad Rice
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