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Keeping up with COVID-19

Never before have people had to work out the incidence of a disease in the middle of a pandemic in real time. The team behind the ONS COVID-19 Infection Survey have developed a way to do just that.

Using quantum mechanics to edit the past

Are you fascinated by the double slit experiment? Then hold on to your hat for Wheeler's delayed choice experiment.

The hardest logic puzzle ever

Stretch your neurons with this tricky, but lovely, variation on the Two Door riddle.

Vaccination: Where do we stand and where are we going?

Where have the COVID-19 vaccines got us so far and where we are likely to be when the rollout is complete?

How long a line can a pencil draw?

And how can we possibly know? Here's a quick example of the art of rough-and-ready calculation.

Triangular number patterns

There are triangular numbers hiding all over the standard multiplication table! Find out how to discover them in this article!

Testing testing in schools

What's the safest way to reopen schools? And can testing make things better?

The maths and magic of shuffling

In this podcast mathematician Cheryl Praeger and magician Will Houstoun reveal the maths and magic behind shuffling cards.