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As human beings, we are instinctively drawn to symmetry, perhaps without realising it - in the way we view art, architecture, and people's faces.
In this lecture from the University of Bristol's Big Ideas in Science series, Dr Nina Snaith asks why, and looks to mathematics for the answer.
Setting maths students a series of problems, Dr Snaith helps them to discover why symmetry is not only beautiful but also useful, with applications in technology, engineering, quantum mechanics and more.