coin problems

Not necessarily, when it comes to money.

Maths in a minute

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

Maths in a minute: Euler's identity

Here's a quick introduction to the beauty queen amongst mathematical formulas.
Bach and the musical torus

In a previous article we found a Möbius strip in Bach's music. This time it's a doughnut shape.
Stuff Happens: Ordering history in computer science

Our digital lives rely on distributed computer systems, such as the internet, but understanding the order of events in such systems is not always straightforward.
Stuff happens: Listening to the Universe

Gravitational waves have opened a new window on the Universe. Find out what they are, how they were detected, and what they promise to reveal.
How not to buckle under pressure

Ahmer Wadee explains how to keep tall structures from buckling under their own weight.