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Counting Spirals on Cacti. |
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An interest in the Fibonacci number series and how they
occur in nature has been with me for quite a while.
I thought it would be interesting to take a look at the occurence of
spirals in particular and see if they linked to Fibonacci numbers.
Below are pictures of cacti I took at a local garden centre.
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Most of the spirals I counted conformed to Fibonacci numbers ie
the numbers of spirals in each direction were neighbouring Fibonacci numbers.
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89 .....
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This particular one didn`t.
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An explanation for this and a more in depth of understanding of
spirals and patterns in nature can be found at
About Phyllotaxis - Classification.
An interesting site, one which I will no doubt return to for more information many times.
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link to More Spirals |
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