Underweysung der Messung, Instructions sur la mesure - Albrecht Dürer, 1525

Albrecht Dürer - Underweysung der Messung (Four Books on Measurement), 1525

Ammonite fossil #petrified #spiral  posy.typepad.com

The perfect curve of an ammonite. From seashells to galaxies, the spiral signature of the Goddess is everywhere.

The number of spirals on the head of Romanesco broccoli is a Fibonacci sequence. Description from webdesignstuff.co.uk. I searched for this on bing.com/images

Fibonacci Numbers and the Golden Ratio

An example of a Fibonacci sequence making spiral patterns in nature. This is also a fractal because each floret is an identical but smaller version of the whole thing & this makes the spirals easy to see.

Fibonacci spirals - exploring the Fibonacci numbers in a series of illustrations : Studio Fredrik Skåtar

vjeranski: “Fredrik Skåtar Fibonacci Spirals, 2012 studies of Fibonacci spirals Pencil and ink on paper, various sizes ”

Fibonacci Spiral - Golden Spiral  Logarithmic spiral whose growth factor is φ, the golden ratio - gets wider (or further from its origin) by a factor of φ for every quarter turn it makes.

1.618

Fibonacci Spiral - Golden Spiral Logarithmic spiral whose growth factor is φ, the golden ratio - gets wider (or further from its origin) by a factor of φ for every quarter turn it makes.

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