## Articles

China has recently revoked its one-child policy. What better occasion to explore the mathematics of population growth with a surprising example.

It would be foolish to ignore evidence. Luckily Bayes' theorem shows us how to take it in into account.

Find out why leap years exist, why you have to wait 400 years for your birthday pattern to repeat, and why there are so many Fridays falling on a 13th.

Does reality arise from information? What does this even mean? Anton Zeilinger explains the impact of John Wheeler's radical idea.

A new framework for the laws underlying reality could explain why nature obeys quantum rules, the origin of time’s arrow, and the power of quantum computing.

The fuzziness of the quantum realm could arise from mathematical restrictions on what can ever be known.

Celebrating the 150th anniversary of Maxwell's equations we talk to physicist John Ellis about what they mean for modern technology and our understanding of the Universe.

Find out how scientists, from physicists to geneticists, measure their confidence in their results.