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Fermat's Spiral Magnet

$3.70

per magnet

Qty:
1
magnet
15% off with code STPADDYPARTY
  • Front
    Front
Designed for youby black dog press
Round Magnet
Standard, 2¼ Inch
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About this product
Shape: Round Magnet

Your refrigerator called and said it was feeling mighty lonely. Why not give it a few friends to play with by creating a couple of custom magnets! Add your favorite image to a round magnet, or shop the thousands of options for a cool square magnet.

  • Available in 3 sizes from 1.25" to 3" diameter
  • Printed on 100% recycled paper
  • Covered with scratch and UV-resistant mylar
  • Available in square shape also
About this design
available on
Fermat's Spiral Magnet
Fermat's spiral (also known as a parabolic spiral) follows is a type of Archimedean spiral. In disc phyllotaxis (sunflower, daisy), the mesh of spirals occurs in Fibonacci numbers because divergence (angle of succession in a single spiral arrangement) approaches the golden ratio. The shape of the spirals depends on the growth of the elements generated sequentially. In mature-disc phyllotaxis, when all the elements are the same size, the shape of the spirals is that of Fermat spirals—ideally. That is because Fermat's spiral traverses equal annuli in equal turns.
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