Have you ever been in an aeroplane on a smooth flight when suddenly the plane bumps up and down for a short time as it goes through turbulent air? The study of turbulence is used to understand a range of phenomena from the simple squirting of a jet of water to the activity of the sun.

Daniel Bernoulli (1700-1782) discovered the relationship between the density of a fluid in a pipe, the speed it is travelling in the pipe and the pressure exerted by the fluid against the walls of the pipe. This is the story of what happened.

Mark Langley, a student at Hills Road Sixth Form College in Cambridge, tells us about his experiences doing A-level Mathematics.

Find out how an early interest in Mathematics and Physics led Dr Helen Mason to a career in solar studies.