A man checks functions of a humanoid robot during a photo opportunity at the Institute for Computer Science at the University of Bonn in Bonn July 3, 2014. The humanoid robots, which are developed by the University of Bonn's "NimbRo" team and company Igus GmbH, will compete at annual 2014 world robotic's championship "RoboCup" taking place in Brazil from July 21 to 24. [Photo/Agencies]
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