People are inspired by what dragonflies are

Scientists took a cue from the dragonfly's wings and improved the wings of airplanes. When the aircraft flies at high speed, the wings of the aircraft will "flutter", that is, the wings of the aircraft will vibrate involuntarily, and this harmful vibration will cause the tragedy of wing breakage and death.

At a time when we humans are struggling with this problem, insects in nature have invented ways to combat flutter millions of years ago. The black mole on the dragonfly's wings is the source of this masterpiece.

Dragonflies have a thick, heavier brown patch on the side of their wings that keeps them flying steadily. Someone has done experiments that if the black mole on the dragonfly's wings is removed, then the dragonfly will swing around when it flies. Therefore, according to the principle of dragonfly wing nevus, people also designed thickened parts on the wings of airplanes, so that the harm of flutter can be eliminated.

<> hello! The dragonfly's ability to fly is a revelation for human inventions.

One of the most famous is to improve the safety of aircraft flight according to the principle of dragonfly low flight, which relies on the nervous system.

Controlling the angle of inclination, subtly adapting its flight speed to the air pressure, while on the other hand, there are some spots on the wings of the dragonfly, which effectively control the wings from vibrating and shaking, making the flight stable.

According to this, scientists applied this characteristic to the aircraft, and thickened some parts of the wings of the aircraft, which effectively solved the problem of flutter and ensured the safety of the aircraft.

Secondly, the entire fuselage of the aircraft is also made in imitation of dragonflies, so the inspiration of dragonflies to human inventions is very large.

Dragonflies and biomimicry.

The dragonfly vibrates through its wings to create locally unstable air currents that are different from the surrounding atmosphere, and uses the vortices created by the air currents to make itself rise. The Dragonfly can soar with very little thrust and can fly not only forward, but also backward and left and right, and can fly forward at speeds of up to 72 km/h. In addition, the dragonfly's flight behavior is simple, relying on only two pairs of wings to flap constantly.

Scientists have successfully developed a helicopter based on this structural basis. When flying at high speed, the aircraft often causes violent vibrations, and sometimes even breaks the wings and causes plane crashes. Dragonflies rely on weighted wing moles to fly at high speeds, so people imitate dragonflies and add counterweights to the wings of airplanes to solve the tricky problem of vibrations caused by high-speed flight.

In order to study the aerodynamics of gliding flights and collisions and the efficiency of their flight, a four-bladed, remote-level-controlled model of the locomotive wing (wing) was developed and, for the first time, flight parameters were tested in a wind tunnel.

The second model tried to install a wing that flew at a faster frequency, reaching a speed of 18 vibrations per second. Characteristically, this model uses a device that variably adjusts the difference between the front and rear pairs of wings.

The central and long-term goal of the research is to study the performance of aircraft driven by "wings" and the efficiency of aircraft compared to conventional propeller-driven aircraft.

The eyes of insects are unique, and almost every one of their eyes is made up of thousands of small hexagonal eyes arranged in close proximity. Each small eye has its own system, each with a refractive system and sensory cells, and all have vision, this peculiar eye is called "compound eye" in zoology.

The compound eyes of dragonflies are the largest and most numerous in the insect kingdom, accounting for two-thirds of the total area of the head, up to about 10,000 birds, 10 times that of ordinary insects, and the structure is very peculiar: the upper part looks at the distance, and the lower part looks close. In this way, when it catches small insects in the air, it can be handy, and it will never miss.

Scientists imitate the structure of dragonfly eyes and build a compound eye camera, which can take thousands of photos at a time.

According to the wide wings of the dragonfly, people invented the aircraft anti-flutter device, and set up a weighting device at the leading edge of the wing end of the aircraft (the simplest thing is to weld a lead weight), so as to effectively solve the situation of aircraft vibration.

Dragonfly, invertebrate, insecta, dragonfly, a common name for insects of the suborder Paraptera. Generally larger, the nucleus is raised, the wings are long and narrow, membranous, and the reticulate wing veins are extremely clear. There are compound eyes, and the vision is extremely sensitive, with 3 in one eye.

Dragonflies are carnivorous insects that specialize in feeding on mosquitoes, flies, and other small insects. A large green dragonfly, commonly known as the "green flute", can eat about 2,000 aphids and other small flying insects a day. It eats mosquitoes, flies, and the like, of course, and welcomes all small moths and insects that can fly and crawl.

Such a large number of pests for human beings to be eliminated is well deserved, and it is well deserved to be called "beneficial insects".

Dragonfly into medicine, can tonify the kidney, clear heat and detoxify, cough and asthma. It is mainly used for the treatment of impotence, spermatozoa, sore throat, cough, wheezing, whooping cough, etc.

Dragonflies fly very fast, some at speeds of up to 100 kilometers per hour, and they can stop in the air for short periods of time. It can't change direction flexibly when it flies forward, so it has to hold its body and then turn. The wings are still stretched out, that is, the wings cannot be folded, so there should be considerable space for the rest, most of them on the branches or at the top of the leaves.