with Johnny Ball and special guest William Blezard
A lighthearted exploration of science and number.
This week Johnny looks at a few musical numbers - discovering that time can change the National Anthem but still rule the waves. He also finds the key to play a violin, with no strings attached - what a fiddle!
Meanwhile - stay sharp and figure this out - how many different triangles in this?*
Written by JOHNNY BALL Producer JOHN SMITH
Series producer ALBERT BARBER
SE Answer: 35