A miner climbs on excavated rocks after a giant drill machine broke through at the final section Sedrun-Faido, at the construction site of the NEAT Gotthard Base Tunnel March 23, 2011. Crossing the Alps, the world's longest train tunnel should become operational at the end of 2016. The project consists of two parallel single track tunnels, each of a length of 57 km (35 miles). [Photo/Agencies]

Visitors gather around during a demonstration of robot Bioloid Robotis (C) , which kicks a ball at the Innorobo Exhibition in Lyon March 23, 2011. The March 23-25 show gathers more than 100 robots, thirty which are presented for the first time in Europe. [Photo/Agencies]