# Past lectures

The concept of zero developed in many cultures over thousands of years. Why did such a 'natural' idea take so long? This lecture...

It is often argued that mathematics as we know it today originated in Greece, and names such as Pythagoras, Euclid and Archimedes are...

Many thousands of surviving mathematical clay tablets provide much information about Mesopotamian mathematics - but what mathematics did...

This series of Geometry Lectures looked at all aspects of computer science, from how it works, how we can teach it better, what the...

The Victorian period was a time of massive change for London, not least in the development and availability for university-level...

Professor Harold Thimbleby looks at the way images can be distorted or altered by the way our brain interprets them.

The infinite shows up everywhere: not just in the counting numbers and the riddle of the primes, but in plane and geometric shapes not...

Symmetric things are often more attractive. Symmetry is also a geometric idea: things may have reflection symmetry or rotational...

Inside every complex gadget is a programming language. How are programming languages designed, and how should they be designed? What are...