null hypothesis

Why a time-honoured statistical tool is becoming problematic.

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.

Mysterious 6174

Start with your favourite four-digit number, follow these simple steps, and you'll never guess what happens next!
A geometry for strings

If, as string theory suggests, the world is made of strings, then what does that mean for a geometry of points? Find out more in this video.
Our changing picture of gravity

To celebrate the recent centenary of the first major test of Einstein's general theory of relativity, we look back over how our picture of gravity has changed.
Maths in a minute: The Sydney Opera House

The mathematical puzzle behind the iconic structure.
The PEMDAS Paradox

It looks trivial but it keeps going viral. What answer do you get when
you calculate 6÷ 2(1+2)? David Linkletter explains the source of the confusion.