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In geometry, a golden spiral is a logarithmic spiral whose growth factor is φ, the golden ratio. That is, a golden spiral gets wider (or further from its origin) by a factor of φ for every quarter turn it makes.

In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. This Collection is inspired by figures illustrating this geometric relationship.

Originally created as a series of elements for the Alan Turing Collection of portraits.

I went off on a tangent.

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