I watched Red Sorghum recently. What is the relationship between Sanlihong and Jingzhi wine?

The appearance of Sanlihong and Jingzhi wine in red sorghum has its historical origin.

When you stop in the garden to watch those fat bees rise and fall among the flowers, or when you can't help patting the sly flies in the kitchen, you must agree with the following view: it is perfect to crown the name "aviator" on insects. Insects are not only the largest family of flying animals on earth, but also the earliest pioneers to master this technology. When was the first flight on earth? This historical moment has long since disappeared in the rocks. However, the descendants of the first astronauts are still active on our planet. They are Mayflies.

Mayflies live in water most of the time and feed on algae. When they are ready to breed, they climb out of the water, shed their skins on plants near the water and become winged adults. These newborn bugs are in no hurry to fly. Most of the time, they gather on the water, spread their wings and slide on the water under the breeze. When the time is right, they will dance in the wind and finish their marriage in the air. Soon, the female lays eggs, and the ephemera, which has just left the water for more than ten hours, falls back into the water again, which also means the end of individual life. At present, most entomologists believe that the earliest insects, like Mayflies, evolved from gliding on water to flying, and the earliest wings should be "sails" rather than "wings".

The wings of this insect are an engineering miracle: a thin layer of chitin, without any support of bones and muscles. Chitin itself is soft and tough, and even carbon fiber composites are not comparable. Chitin runs through the pterygoid vein, which is a hydraulic tube. It is these hydraulic pipes that make the wings of insects hard enough to cope with the great pressure test during flight. The cross section of insect wings is the same as that of birds and bats. The upper end is curved and the lower end is straight, which makes the air generate lift when it flows over the wing surface.

The iconic difference between insects and any other flying animals is that they flap their wings at an amazing speed-dragonflies usually flap their wings 200 times per second, while mosquitoes and wasps flap their wings as high as 1000 times per second. Not only that, if you play back the flying images of insects taken by high-speed cameras one by one, you will be surprised to find that the flapping flight of insects is not a simple up-and-down movement. Viewed from the side, the wings of insects are actually drawing a figure of eight. Until recently, people put insects into wind tunnels to study them carefully. It was found that the wings of these little guys actually created whirlpools in the air. Relying on these controllable eddies, their wings can generate lift when flapping down and up, which birds and bats can never do. With the help of these eddies, a small bee can generate lift up to three times its weight, and its forward thrust is eight times its weight. By contrast, if the ratio of thrust to gravity reaches 2, a fighter can become a "the legendary swordsman". So you can easily understand why flies can make incredible sharp turns in the air.

Of course, all these costs are quite high, and flying is a very laborious job. A fruit fly will consume 1 0% of its body weight after flying1hour. Drosophila uses carbohydrates as its power source, which is a bit uneconomical. Many other insects directly use fat as "fuel", which greatly improves the "economy" of flying. Therefore, you must never underestimate the ability of insects. A small monarch butterfly can fly continuously for 3000 kilometers at the speed of 150 kilometers per day, and complete the long-distance migration from North America to Central America.

(Based on Dong Wang's Walking Against the Wind)