Want facts and want them fast? Our *Maths in a minute* series explores key mathematical concepts in just a few words. From symmetry to Euclid's axioms, and from binary numbers to the prosecutor's fallacy, learn some maths without too much effort.

Maths in a minute: TopologyWhen you let go of the notions of distance, area, and angles, all you are left with is holes.

Maths in a minute: Statistical mechanicsBridging the gap between the microscopic snd the macroscopic.

Maths in a minute: The gamma distributionHow long do you have to wait for more than one thing to happen?

Maths in a minute: The exponential distributionHow long do you have to wait for something to happen?

Maths in a Minute: Turbulence and the Reynolds numberHow does a smooth flow suddenly become turbulent? The Reynolds number helps understand the transition.

Maths in a Minute: Fluid dynamics and the Euler equationsHow does water, or indeed any fluid, move? The Euler equations let us look beneath the surface and mark the beginning of modern fluid dynamics.