Complex sentence: The Department of Physics of the Faculty of Philosophy, Sciences and Letters was started with two imminent Italian physicists, Gleb Wataghin and Giuseppe Occhialini, who specialized in researching cosmic radiation and while still a student, Oscar Sala started research work with the group.
Split into simpler sentences: The Department of Physics of the Faculty of Philosophy, Sciences and Letters was started with two imminent Italian physicists, Gleb Wataghin and Giuseppe Occhialini, who specialized in researching cosmic radiation. While still a student, Oscar Sala started research work with the group.