PhD Students Andrea and Will showcased their research on optical fibres at the Research Showcase event this week, part of the Festival of Doctoral Research:
https://www.southampton.ac.uk/doctoral-college/research-community/main-festival-page.page
They showed how optical fibre is made by making some from sugar and using it to demonstrate total internal reflection. Lots of people gathered round to hear the journey from crossbows to hollow core fibre (yes, they had a crossbow).
Andrea and Will were voted joint winners in the peoples choice award for the best exhibit.