"All limits, especially national ones, are contrary to the nature of mathematics… Mathematics knows no races… For mathematics the whole cultural world is a single country" – David Hilbert, the foremost mathematician of the 20th century, speaking as the Nazis neared power in his native Germany.

Why do maths? And why are differential equations important?

A 10 minute video by Sara Merino-Aceituno, a researcher in the geometric analysis and partial differential equations group at Cambridge University, explains why differential equations are important, what mathematical research is like, and why mathematics is “a very human science”.