The limits to what we can observe are not only a matter of science, but also of politics and economics.

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

Introducing an indispensable tool of mathematical logic.

There are limits to how much you can simultaneously squeeze the quantum fuzziness of an electron's position and momentum

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.

We take the real numbers for granted, but what are they really?

A game involving biscuits and maths — what could be better?

Take a quick trip to the foundations of probability theory.