Nature s revelation in life, nature s revelation

Man comes from nature and is an organic part of nature, therefore, man should be integrated with nature, respect nature, protect nature, so that man and nature are in harmony. If human beings and nature are opposed, the so-called conquest of nature will inevitably destroy nature and destroy the home on which human beings depend.

Nature gives people a kind of tranquility and harmony, when people feel tired and upset in life, they can go into nature to find a tranquility and tranquility...

Dragonfly Dragonflies vibrate with their wings to create locally unstable air currents that are different from the surrounding atmosphere, and use the vortices created by the air currents to raise themselves. Dragonflies 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, dragonflies have a simple flight behavior, 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 wings to fly at high speeds, so people imitate dragonflies by adding counterweights to the wings of the aircraft to solve the thorny 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.

Nature has given many revelations to human beings, and it is the earliest "teacher" of human beings. There are many strange things in nature, and animals and plants have their own unique characteristics.

For example, when the wind blows, dandelions fly in the blue sky, like some elves dressed in white, people invented the parachute through its characteristic of fluttering with the wind, so that people will not be injured when they operate the parachute to jump down in the air.

Others were invented through animal revelations. For example, when a horse runs very fast, humans think: If only we could invent a machine that can run faster than a horse.

Time flies, and with the continuous development of science and technology, human beings have invented automobiles, allowing us to travel faster to our destinations. People also invented airplanes to imitate the flight of birds. At that time, if we were going to a far place, it was simply not fast enough to take a car, and people looked at the birds soaring in the sky and thought:

If only we could fly. Mankind invented the airplane again.

Human beings are intelligent, but if we don't have the "teacher" of nature, we wouldn't dare to think about it, let alone invent and create. It is precisely because of this "teacher" that human beings are able to imagine boldly and continue to invent and create.

Nature, the "teacher" of human beings, is precisely because of it, our life is no longer boring and ordinary, and our life has become full of imagination and colorful! Nature, you are the "teacher" of humanity.

The survival of the class depends on nature, and the development of human beings is based on the revelation of nature, without which there would be no civilization that human beings are so developed now!

Lu Ban made an umbrella based on lotus leaves; The electronic frog eye was invented based on the frog eye; Steamships were invented based on the "streamlined" nature of the whale's body; The airplane was invented according to the bird; Based on cyanobacteria, a bionic photolysis device was invented; The jellyfish ear storm detector was invented based on the downwind ears of jellyfish; According to Xan'er, Velcro was inventedSonar was invented based on the positioning system of dolphins

2.According to the structure of the Bird's Nest, the Beijing 2008 Olympic Games main tube (the name is called the Bird's Nest) 3According to the inspiration of the chameleon encountering danger and changing color to escape, people invented special military uniforms with different geographical environments.

Butterflies Colorful butterflies are colorful, such as heavy moon butterfly, brown vein golden spotted butterfly, etc., especially the fluorescent winged butterfly, which is sometimes golden in the sun, sometimes emerald green, and sometimes from purple to blue. Scientists have been able to study the colors of butterflies for military defense. During World War II, the Germans surrounded Leningrad in an attempt to destroy its military targets and other defenses with bombers.

Based on the lack of understanding of camouflage at that time, the Soviet entomologist Schwanvich proposed to cover military facilities with butterfly-like camouflage by using the color of butterflies that are not easy to be found in flowers. Thus, despite the efforts of the Germans, the military base in Leningrad remained unharmed, laying a solid foundation for winning the final victory. According to the same principle, later people also produced camouflage uniforms, which significantly reduced the number of ** in battle.

Due to the continuous change of position of artificial satellites in space, the temperature can change suddenly, and sometimes the temperature difference can be as high as two or three, which seriously affects the normal operation of many instruments. Inspired by the fact that the scales on the butterfly's body will automatically change the angle and adjust the body temperature with the direction of sunlight, the scientists made the temperature control system of the artificial satellite into a shutter style with a large difference in the radiation of the blades and a large difference in heat dissipation capacity, and a temperature-sensitive metal wire is installed in the rotating position of each window, and the opening and closing of the window can be adjusted with the change of temperature, so as to maintain the constant temperature inside the artificial satellite and solve a major problem in the aerospace industry.