Greece Wins Gold at Robotics Olympiad for Youngsters Greece’s golden team with their coaches holding their revolutionary white cane. Credit: plaisio.gr Greece won gold at the International Robot Olympiad for youngsters which took place digitally earlier this month. Irida Aggelopoulou, Vasiliki Iliadi and Christos Rentzis, from the PlaisioBots team, won the top prize by creating a “smart” white cane for the blind. The white cane has a 3-D detection sensor inside it that can warn the user of obstacles that are in the environment. It also can “read” traffic lights, allowing it to be able to tell users when to cross a street.