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As early as 4.57 billion years ago, the sun quietly appeared in this universe. In the time that followed, the Earth and the Moon followed, but there was still a lack of vitality in the already lively universe.
However, although the universe at this time is a bit boring, it still does not affect their operation according to the law. Although this is not enough to give birth to the birth of human beings, it can be seen that the entire universe has not been tarnished by the absence of human beings.
According to the theory of evolution, it was only 25 million years ago that Australopithecus, which had some connection with humans, appeared in this world. By the time modern Homo sapiens appeared 50,000 years ago, countless species had survived on Earth.
In comparison, the experience of human survival on this planet is far from sufficient. Therefore, when human intelligence has developed to a certain extent, there is a situation where human beings learn from animals in their life and work.
For example, because of whales, humans used their wisdom to build submarines, and bats were also observed by humans and learned from them to make radar, and so on. With the help of the creatures in the biosphere, human beings have created many things that are beneficial to human life.
But there is one animal that is common in human society, but few people pay attention to it, and that is the dragonfly. In previous textbooks, dragonflies were often described in this way. That is, when it is about to rain, the dragonfly will fly low.
However, dragonflies do much more than just predict the weather. The secret of the dragonfly. Enough for humans to study for a long time. Take the wings of a dragonfly as an example, if you pay attention to it, you will definitely find that there are large and small lattices on the wings of the dragonfly.
In general, this kind of grid of insects is called wing veins by researchers, and it is essentially just a name that researchers can find by classifying them.
But if this grid is used in other fields, it is very different. As we all know, flying is a function that human beings love but can't do, and there are not a few humans who are eager to fly, so people use kites to achieve this long-cherished wish.
But after all, it wasn't humans themselves soaring in the sky, so later on, there were all kinds of things that could fly. But in order to fly better, there is one problem that must be solved, and that is the problem of the air currents encountered during the flight.
Anyone who played with dragonflies as a child will know that if they destroy their wings, they will fly like they are drunk, and they may even fall to the ground and never get up again.
In fact, this is because when insects flap their wings, they must be affected by the force of the interaction between the air flow and the wings, that is, they cause flutter. Once flutter occurs in the air, it will inevitably cause the subject to roll and become unstable.
And this involves the secret of dragonfly wings. In fact, in addition to the small lattice, the dragonfly wings also have a small piece of dark color at the tip of each wing, which is the so-called colored small checkered band.
The most important function of this small grid is to enable the dragonfly to fly smoothly. In order to study the role of this piece, the researchers also gave it a special name, called the wing nevus. If you don't know what it does, it's easy to misinterpret it as a mole on your wings.
This mole that maintains flight can be seen on many insects. It is precisely because of this that it attracted the attention of scientists, and later conducted in-depth research on dragonflies, which really allowed them to study something amazing.
For a long time, human-made aircraft have been able to fly, but when they are too fast, they still suffer from flutter. If the aircraft encounters flutter, it is very likely that the wings will break or even disintegrate.
After borrowing this structure from the dragonfly, humans added the same structure to the wings of the aircraft. What is surprising is that after drawing a scoop with a gourd, the flutter problem that has been plaguing mankind has been solved.
After solving this problem, it not only means that there has been a qualitative leap in human flight technology, but also means a new possibility, that is, after stabilizing the wing, the speed of human aircraft has a new possibility.
That is, it is possible to go beyond the current speed and move towards a faster speed, even beyond the speed of light. And after exceeding the speed of light, the speed of faster-than-light, light pulses, wormhole traversal, and so on have room to dream.
However, fantasies also need to be let go of the next step to be realized. And human beings have borrowed the structure of dragonfly wings, and they have their own achievements in the present. For example, the robotic dragonflies that can be seen today are one of the achievements, and there are also micro-flying machines.
It can be said that although human beings are now the undisputed rulers of the earth, in some specific aspects of adapting to the environment of this planet, human beings are actually far inferior to other species.
Happily, despite the shortcomings of human beings, the greatest strength of human beings lies in their endless curiosity and curiosity, and it is precisely because of this nature that human beings are what they are today.
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