Yn gynharach eleni roedd 24 o athrawon Ffiseg o Gymru wedi ymweld â safle'r Peiriant Gwrthdaro Hadronau Mawr (Large Hadron Collider) ger Genefa i gael golwg manwl ar rai o'r darganfyddiadau diweddaraf ym maes ffiseg ronynnol, fel rhan o'u Datblygiad Proffesiynol Parhaus.
Earlier this year 24 physics teachers from Wales visited the site of the large hadron collider in Geneva to witness up close some of the latest discoveries in particle physics, as part of their Continuing Professional Development (CPD).