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A GERMAN scientist has created the world's smallest soccer pitch - so minute that 20,000 of them could fit onto the tip of a human hair. The imitation playing field, created by using nanotechnology, measures 500 by 380 nanometres and can only be seen through a special microscope, said creator Stefan Trellenkamp, whose country is hosting the 2006 World Cup. "I am really, really proud,'' said the nanotechnology researcher from the University of Kaiserslautern.Next to come: the world's smallest violin?