with Johnny Ball
A lighthearted exploration of science and number.
This week Johnny takes a journey round the magic world of squares, with tricks and illusions enough to turn you square-eyed.
Find out about magic squares that always add up ... down ... across ... and sideways ... and journey into space with 3D computer graphics for the latest episode in The Four Side Saga. Written by JOHNNY BALL
Producer ALBERT BARBER (R)
Q: How do you divide six marbles in a box between six people, so that each person receives a marble but one marble remains in the box?
A: Give the last person his or her marble in the box!