Where is the Fibonacci spiral?

Fibonacci spiral, also known as "golden spiral", is a spiral drawn according to Fibonacci sequence. This shape is ubiquitous in nature. This principle is closely related to the golden ratio. If the latter term is divided by the former term, the ratio will be closer and closer to 1.6 18: 1.

It is common in various photographic compositions, design concepts and buildings, and there are also many natural "golden spirals" in nature, such as the spiral outline of shellfish, the outline of sunflower and the outline of the Milky Way.

The rule of drawing is to draw a 90-degree sector in a rectangle with Fibonacci sequence as the edge, and the connected arc is Fibonacci spiral. It comes from Fibonacci sequence, also known as golden section sequence. There are many Fibonacci spiral patterns in nature, which is the most perfect classical golden ratio in nature.

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In fact, there are a lot of beautiful and magical natural gold spiral structures in nature, which is a subtle design of nature. The picture shows the Fibonacci spiral of the Milky Way, which also perfectly conforms to the shape of the "golden spiral".

Even succulents like aloe will take on a "golden spiral" shape. Plants grow new cells in the form of "golden spiral", and then they will take on this shape. In this way, the new leaves and the old leaves of plants will not block each other too much, and they can enjoy the sunshine and rain and dew to the maximum extent.

The evidence that cactus presents a "golden spiral" shape seems to be not obvious, but careful observation of the needles growing on cactus shows that their arrangement is actually very similar to that of sunflowers and succulents.

Baidu Encyclopedia-Fibonacci Spiral