Aqil Sajjad recently finished his postdoc at Harvard University in the US, where he does particle physics research. But unlike most particle physicists, he does physics by ear. That is because Sajjad lost his sight in both eyes when he was a teenager growing up in Islamabad. In this podcast Sajjad talks to journalist Lucina Melesio about his experiences in physics. You will hear how Sajjad accesses maths and science concepts using speech-to-text software.