**Wednesday 6th June 2018Presentation by Ann Maslen**

Fibonacci! What do pineapples, sunflower head seeds, nautilus shells, Pinecones, cabbages and wave sequences have in common?

Ann explained the mathematical sequence favoured by evolution - the secret patterns of nature known as the Fibonacci ratio.

The Fibonacci sequence is a series of numbers where a number is found by adding up the two numbers before it. Starting with 0 and 1, the sequence goes 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, and so forth.

On many plants, the number of petals is a Fibonacci number:

buttercups have 5 petals; lilies and iris have 3 petals; some delphiniums have 8; corn marigolds have 13 petals; some asters have 21 whereas daisies can be found with 34, 55 or even 89 petals.

Fibonacci! What do pineapples, sunflower head seeds, nautilus shells, Pinecones, cabbages and wave sequences have in common?

Ann explained the mathematical sequence favoured by evolution - the secret patterns of nature known as the Fibonacci ratio.

The Fibonacci sequence is a series of numbers where a number is found by adding up the two numbers before it. Starting with 0 and 1, the sequence goes 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, and so forth.

On many plants, the number of petals is a Fibonacci number:

buttercups have 5 petals; lilies and iris have 3 petals; some delphiniums have 8; corn marigolds have 13 petals; some asters have 21 whereas daisies can be found with 34, 55 or even 89 petals.