Oskar Grudziński – a student at the Stefan Batory High School No. 2 in Warsaw. With the science club team “Fenix” he won the first place in Poland and the gold medal in the Young Physicists’ Tournament. He presented the team’s achievements during the International Young Physicists’ Tournament (“Physics World Cup”) in Thailand, where he also won the gold medal. Aviation, model building, chess, guitar playing, diving… are just a few of his numerous interests.