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family, and is now better known<br />
by his nickname, Fibonacci.<br />
To calculate the Fibonacci sequence,<br />
start with the numbers<br />
0 and 1, and add them together<br />
for the third number, 1. Then<br />
add 1 and 1 to derive the fourth<br />
number, 2. Continue this pattern,<br />
where each number is<br />
the sum of the two preceding<br />
numbers. The sequence looks<br />
like this: 0, 1, 1, 2, 3, 5, 8, 13, 21,<br />
34, 55, 89, 144—and so on for as<br />
long as you want to keep adding.<br />
Spirals in Romanesque<br />
cauliflower<br />
The number of petals on<br />
a sunflower can be any<br />
of several numbers in the<br />
Fibonacci sequence.<br />
The Fibonacci numbers are<br />
found all around us in God’s creation.<br />
For example, the number<br />
of petals (or florets) of a plant<br />
often are Fibonacci numbers.<br />
The iris has 3 petals, buttercups<br />
have 5, and delphiniums have 8.<br />
Corn marigolds have 13. Some<br />
asters have 21. Daisies can be<br />
found with 34, 55, or 89 petals.<br />
Though other numbers are present<br />
as well, Fibonacci numbers<br />
seem especially common in<br />
plant structures.<br />
The number of petals on a<br />
sunflower can be any of several<br />
numbers in the Fibonacci se-<br />
Fibonacci numbers are all around us.<br />
10 | <strong>Loaves</strong> & <strong>Fishes</strong> • Issue <strong>27</strong>
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