Welcome to Plus magazine!
Who's watching: The limits of observation
Physics is all about observation, but how much can we actually see? We explore some of the limits of observation — be they natural, scientific, political, or down to the fuzzy quantum nature of reality.
Welcome to the FIFA World Cup!
From making penalties fairer or taking the perfect free kick, to designing an ideal ball and predicting results using an octopus, it's all there in our collection of football articles. Take your pick!
Citizen science: Schumann resonances
Find out about the resonant electromagnetic waves circling the Earth, created by lightning.
Arithmetic billiards
Stuck on your arithmetic? Try a billiard table!
Who's watching: The cosmic microwave background
The cosmic microwave background (CMB) is light left over from the Big Bang. It has revealed a wealth of information about our Universe and turned cosmology into a precision science. How can a single picture tell us so much?
The maths of randomness
Probability theory – the maths of randomness – makes sense. Fields medallist Martin Hairer explains.
Celebrating Stephen Hawking
On the sad news of Stephen Hawking's passing we look at his professional life and work. The image shows Hawking enjoying zero gravity in 2007 and is courtesy NASA.
Energetic maths
How maths can help keep the lights on!
What's your problem?
Some problems are so complex that, although we know how to solve them in theory, it would take billions of years to find a solution even on the fastest supercomputer. Come on a trip through the world of complexity and meet the famous P versus NP problem.
Complex numbers: Why do we love them?
Have you ever wondered what complex numbers are good for, both within and outside of maths? Find out with this collection of articles and videos.
The real numbers and Cauchy sequences
We take the real numbers for granted, but what are they really? Here's an interesting way of looking at them.
Heisenberg's uncertainty principle
What happens if you squeeze the quantum fuzziness inherent in an electron's position?
Something from nothing?
If you can prove that a statement can't possibly be false, does this mean it's true? Here's a gentle look at non-constructive proofs and the worries some people have about them.
Who's watching: Can maths exist if you can't see it?
Unlike physicists, mathematicians don't need to "see" something to be certain it exists. But are non-constructive proofs really valid? And what happens if you try and make do without them?
Error correcting codes
Learn about magical mathematical methods for fixing errors on the fly.
Maths in a minute: Chomp
Explore a game that involves biscuits and comes with a surprising mathematical twist — what could be better?
Clocking the schedule
The way many football leagues schedule their fixtures can lead to unfair effects — and unsolved maths problems! Dries Goossens, who schedules the Belgian Pro League, explains.
Maths in a minute: Truth tables
Introducing an indispensable tool of mathematical logic.