Mathematicians get up to all sorts. Geometers and Topologists in particular occupy a world of inconceivable shapes, concepts and dimensions. But how do you visualise such ideas? Sure, there's computer graphics, but what about over here, in the real world? In this lecture Henry Segerman will show just how it can be done with a dazzling array of 3D prints, virtual reality and even spherical video. Most of all, he displays the intrinsic beauty of mathematics.

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