Think of a Number

1.

Johnny Ball, with the help of a studio audience, will show some mind-stretchi...

2.

This week Johnny discovers why hands are so handy, how to make sense of your ...

3.

This week Johnny looks at family trees, works out how to get rid of a boomera...

4.

Lots of giggles and quite a few gurgles as Johnny explores water from H to O....

5.

This week Johnny discovers some dicey things about dice and a number over a t...

6.

This time Johnny considers why the Earth is in a flat spin; talks about what ...