How to make a salad dressing, Fibonacci the marathon runner, the beauty of structure (see image). Just three of the many short films we have made over the last few weeks. The films aim to make mathematics both entertaining but also challenging, encouraging people to think and maybe make connections and realise the part maths might be quietly playing in their lives. But, course, viewers can just scroll on (after sometimes posting a comment...).

What is the best way to run to win a race? Why does a sprinter slow down before the finish line? Why do you swim better slightly underwater? Why, on a bike, the faster you go, the more stable you are? Join us for the answers at this Oxford Mathematics Public Lecture - Thursday 25 September, 5-6pm, Andrew Wiles Building, Mathematical Institute, Oxford.