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AUSTRIA/
RTR303GF 
March 30, 2012 
Dissertation student Jan Torgersen of Vienna University of Technology puts on safety goggles in front... 
Vienna, Austria 
Torgersen of Vienna University of Technology puts on safety goggles in front of newly developed 3D nano-printer... 
Dissertation student Jan Torgersen of Vienna University of Technology puts on safety goggles in front of a newly developed 3D laser printer, in Vienna March 29, 2012. Torgersen and colleagues have set a new world speed record for creating 3D nano objects. The University team create their grain of sand-size structures in just four minutes, a fraction of the time that other items have previously been printed. Previously making complex large 3D structures would take hours or even days but with the newly developed 3D laser printer the scientists can speed that up by a factor of 500 or in some cases 1,000 times. The process called ?two-photon lithography? involves using a focused laser beam to harden liquid resin in order to create micro objects of solid polymer. The scientists said the technique could be developed to make small biomedical parts to be used by doctors. Picture taken March 29. REUTERS/Herwig Prammer (AUSTRIA - Tags: SCIENCE TECHNOLOGY) 
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