
A brief introduction to electromagnetism
We'll start our series of articles with a look at the force of electromagnetism.
There's a beautiful connection between sunflowers and maths. When you look at the edge of a sunflower's seed head, you can usually spot two families of spirals, one running clockwise and the other anticlockwise. When you count how many spirals there are in each family, you'll most probably get two consecutive numbers from the famous Fibonacci sequence. The sequence starts with a 1 followed by a 2, and all other terms are made by adding the two preceding ones, giving:
1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...
Does the famous Fibonacci sequence always appear in sunflower seed heads?
There'll be plenty of penalties at Euro 2016.
What's the best spot to aim a penalty at?