Fibonacci Pins and Buttons
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Description: Today is Fibonacci (Leonardo of Pisa) Day. Fibonacci sequence starts like this: 0,1,1,2,3,5,8,13 and so on. Each number is the sum of the two numbers before. When using squares with those widths we get a spiral like the one on the tail of the chamaleon. You can find it also on: flower petals; seed heads; pinecones; shells; spiral galaxies etc.
Sunflower Seeds, Fibonacci Spiral, Golden Ratio, Math Pin
by Anne Mathiasz
$2.75 $3.25
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Description: This mahematical design shows the Fibonacci spiral and the word "Fibonacci" written in Japanese hiragana characters. If you are a Math otaku, you will love this. If you have a mathematician or mathematics enthusiast in your life, buy it as a gift for them because math is the purest form of truth.
Fibonacci Spiral Lines Geometry Golden Ratio Pi Day Pin
by Anne Mathiasz
$2.75 $3.25
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