Expand knowledge:
1. Snowflakes are like leaves. There are no two snowflakes with the same shape in the world. But magically, each of them is a hexagon, which is also a perfect representative of symmetrical patterns.
2. Sunflower seeds are radially symmetrical in a strange arrangement, which is called Fibonacci sequence. It determines the order of each number by adding the first two numbers. For example: 1, 2, 3, 5, 8, 13, 2 1, 34, 55 and so on.
3. The arrangement of pinecones almost always matches a pair of consecutive Fibonacci numbers. For example, three to five cones follow the left spiral in three steps, and the last five steps intersect at the back.
4. Romanian broccoli is loved by many people because of its face value, and it also raises its own value. Its growth is symmetrical.
5. Honeycomb is a typical example of natural symmetry. For many years, human beings have been admiring the unique hexagonal structure of beehives, which saves space to the greatest extent, uses the least beeswax and stores the most honey. I have to say that bee is really a highly skilled geometric architect!
6. Almost all spiders can create a nearly perfect circular web, which has roughly equal radial supports and spirals from the inside out. Some scientists believe that this kind of spider web is built for strength, and the radial symmetry helps to evenly distribute the impact force and reduce the cracks when the spider prey contacts the network.
7. Red-crowned cranes always move in groups. They are arranged in herringbone, and the angle is always 1 10 degrees. More accurate calculation also shows that the angle between the characters "Ren" is half, that is, the angle between each side and the crane group is 54 degrees, 44 minutes and 8 seconds; And the angle of diamond crystal is exactly 54 degrees, 44 minutes and 8 seconds!
8. Nautilus shell Like sunflower, Nautilus grows in Fibonacci spiral, and the length of each line is exactly equal to the sum of the lengths of the two circles inside.