Articles

Article
icon

Maths in a minute: The SIR model

Find out the basics of the SIR model, the basis most disease modellers use to understand the spread of a disease through a population.
Article

The holographic principle

Over the last few decades physicists have been developing a curious idea. Perhaps the world we inhabit is a hologram, lacking a crucial feature of the world as we perceive it: the third dimension.
Article

e for exponential

At the beginning of an epidemic the number of infected people grows exponentially. But why does the number e appear in descriptions of this growth?