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.
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.
Would you like to get away from Earth? Here's how fast you would need to go.
How does the voting system for the European Parliament elections work?
Start with your favourite four-digit number, follow these simple steps, and you'll never guess what happens next!
How should the seats in the European Parliament be allocated?
How to unjam traffic.
In preparation for this year's snooker world championship, Wim Hordijk finds some powerful maths behind snooker statistics...