Fibonacci Turbines. Images found at the German National Archives.
For what it’s worth, the Nautilus is not a perfect golden spiral, but comes close in its properties. See more at The Golden Number.
The Old Wolf has spoken.

Fibonacci Turbines. Images found at the German National Archives.
For what it’s worth, the Nautilus is not a perfect golden spiral, but comes close in its properties. See more at The Golden Number.
The Old Wolf has spoken.