The 2011 Plus advent calendar

Submitted by Rachel on November 30, 2011

Get into the festive spirit with our Plus advent calendar! Behind each door is a Plus favourite. Find out what's behind today's door...

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.

Who's watching: Can maths exist if you can't see it?

We explore non-constructive proofs and what happens if you try and avoid them.
Who's watching: The limits of observation

Physics is all about observation, but how much can we actually see?
Clocking the schedule

The way many football leagues schedule their fixtures can lead to unfair effects — and unsolved maths problems!
Something from nothing?

If you can prove that a statement can't possibly be false, does this mean it's true?
Citizen science: Schumann resonances

Resonant electromagnetic waves, created by lightning flashes, circle the Earth. Wim Hordijk explores the maths and shows how you can keep track with these phenomena.