Calculus is a collection of tools, such as differentiation and integration, for solving problems in mathematics which involve "rates of change" and "areas". In the second of two articles aimed specially at students meeting calculus for the first time, Chris Sangwin tells us how to move on from first principles to differentiation as we know and love it!

Following on from his article 'The prime number lottery' in last issue of Plus, Marcus du Sautoy continues his exploration of the greatest unsolved problem of mathematics: The Riemann Hypothesis.

The concept of a speed limit seems a simple one - until you think what can happen when a speed camera clocks a rotating wheel...

A new attempt to solve Hilbert's 16th problem is causing controversy.

Researchers observe the Inverse Doppler effect for the first time.

A new project hopes to reduce the experimental error in science teaching.

The Royal Statistical Society is calling for more effective performance monitoring.

How many ancient forests are in your tank?

Not only are paper models of geometric shapes beautiful and intriguing, but they also allow us to visualise and understand some important geometric constructions. Konrad Polthier tells us about the gentle art of paper folding.