Advent calendar 2013

Plus Advent Calendar Door #24: Santa's knapsack problem

Can Santa fit all the presents in his sack in time?

Plus Advent Calendar Door #23: Beautiful ellipses

Santa's not the only one who cares if you've been naughty or nice!

Plus Advent Calendar Door #22: Travelling Santa

How to deliver all those presents?

Plus Advent Calendar Door #21: Troubling turbulence

Raging rivers and thundering waves are exciting and frightening and for mathematicians they are a massive problem.

Plus Advent Calendar Door #20: Celebrate the central limit

Statistics wouldn't work without it

Plus Advent Calendar Door #19: Beautiful buildings

How to make a geodesic dome

Plus Advent Calendar Door #18: Clever sums

Adding up, made simple

Plus Advent Calendar Door #17: Take it to the limit

Even if there isn't one!

Plus Advent Calendar Door #16: Are you nice?

Here's a dilemma...

Plus Advent Calendar Door #15: Size does matter!

Give me fulcrum and I shall move the Earth!

Plus Advent Calendar Door #14: Euler's polyhedron formula

Meet our favourite formula...

Plus Advent Calendar Door #13: Simpson's paradox

Puzzling percentages

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