Bitcoin is a digital currency that isn't regulated by any kind of central authority. The structure which allows this decentralisation is called blockchain. But how, and how well, does it work?
Was the mathematical modelling projecting the course of the pandemic too pessimistic, or were the projections justified? Matt Keeling tells our colleagues from SBIDER about the COVID models that fed into public policy.
PhD student Daniel Kreuter tells us about his work on the BloodCounts! project, which uses maths to make optimal use of the billions of blood tests performed every year around the globe.