Australia's Indigenous people had many methods for counting, and they didn't use just numbers.
There is plenty of evidence to show Australia's Indigenous people had ways of counting big numbers, yet the myth persists they couldn't count more than a handful of things. Why?
On international Pi Day it's time to look at Pi's position in unique formula that's praised much for its beauty in uniting several mathematical constants.
And it's not all down to David Beckham...
Scientific advances – including the recent discovery of gravitational waves – force us to deal with numbers so extreme they're virtually inconceivable.