The origin of the dragonfly, what is the scientific name of the dragonfly

The scientific name of the dragonfly is dragonfly.

Other names for dragonflies include Dingding, Diandianer, Grasshopper, Negative Labor, Zhucheng, Shayang, Shanmi, and Guangguangting, but the scientific name in Chinese is dragonfly.

The origin of the dragonfly's name:

The dragonfly is the most spectacled animal in the world, it has structured compound eyes, has a very light body, and is able to take off quickly and spin quickly. The dragonfly face brushing device can be installed and landed in 5 minutes, which is fast and convenient.

青, derived from "青", refers to the color. "Pi Ya" explains "dragonfly": "A dragonfly (dragonfly is called Qingting, the color is green and the big one is also.

Erya Wing, Insect Release, Frog Fly" said: Frogflies fly well and collect water, and there are three kinds of green, red and yellow. The green and big ones are called frogs, the small and yellow ones are called Hu Li, the small and red ones are called red pawns, and the one is called the model empty donkey.

Dragonfly is also written as "dragonfly". Both "dragonfly" and "flyfly" are related to the shape of the dragonfly's tail. "Pi Ya, release insects, dragonflies" mountain tour called dragonflies when it rains, that is, how good it is to collect water to fly, the tail end of the pavilion noon (noon) then the pavilion (stop), the name of the locust, with this word or as a fly, the court is also straight. <>

Dragonflies, invertebrates, phylum Arthropods, Insecta, Winged subclasses, Dragonflies, Paraptera are divided into Dragonflies and Flyflies.

1. Origin.

The bamboo dragonfly was made by the Chinese BC and has been a toy in the hands of Chinese children for more than 2,000 years.

It was introduced to Europe in the 18th century and inspired people's thinking, and George Kelly, an Englishman known as the "father of aviation", was fascinated by bamboo dragonflies all his life. His first aeronautical research was the imitation and modification of the "bamboo dragonfly" in 1796, which led to the realization of some of the working principles of the propeller. His research drove the development of the aircraft.

And it has brought inspiration to Western designers to develop the best products.

2. Introduction. Bamboo dragonfly is a traditional children's toy of the Han nationality, which is widely spread. When playing, rub your hands together, and then let go of your hands, and the bamboo dragonfly will fly into the sky. After spinning for a while, it will fall.

It is a very ingenious little invention in ancient China, this simple and magical toy, once amazed Western missionaries, called it the "Chinese spiral". In the thirties of the twentieth century, the Germans invented the propeller of *** according to the shape and principle of the "bamboo dragonfly".

3. Principle. There is an inclination between the blades of the bamboo dragonfly and the horizontally rotating surface (this inclination angle can be adjusted).

When the rotor rotates, the rotating blades push the air downwards to form a strong wind, and the air also gives the bamboo dragonfly an upward reaction lift, which changes with the inclination angle of the blades. When the lift force is greater than the bamboo dragonfly's own gravity, the bamboo dragonfly can fly upward.

The blades and rotating surface of the bamboo dragonfly also maintain an inclination, so when we rotate the bamboo dragonfly by hand, it will get the reaction thrust of the air and fly upwards.

The greater the resistance area of the wing surface, the greater the force, and therefore the greater the reaction force (and the greater the buoyancy), the higher the bamboo dragonfly flies. However, we also found that the larger the resistance area, the greater the rotational force required, so it is not practical in the actual operation of the bamboo dragonfly, and it may be necessary to find a balance point in the force and angle area to make the bamboo dragonfly effortless and easy to operate and fly high.

Find a balance between weight, inertia), angle (rising velocity), area (lifting force).

All I know is that Duraemon and Nobita can fly when they wear it.

The bamboo dragonfly is a major invention in ancient China. When playing with yourself, rub your hands together, and then let go of your hands, and the bamboo dragonfly will fly into the sky. Spin for a while before falling.

This simple and magical toy once amazed Western missionaries and called it the "Chinese spiral". In the thirties of the twentieth century, the Germans invented the *** propeller according to the shape and principle of the "Chinese spiral". (Introduction).