1. Ships and submarines come from people's imitation of fish and dolphins.

2. Scientists made the first batch of gas masks in the world according to the unique drug detection ability of wild boar nose.

The rocket takes off by using the recoil principle of jellyfish and squid.

4. Humans imitate the highly sensitive sense of smell of police dogs and make "electronic police dogs" for investigation.

According to the visual principle of frog eye, people have successfully developed an electronic frog eye. This kind of electronic frog's eyes can accurately identify objects with specific shapes like real frog's eyes. After installing electronic frog eyes in radar system, the anti-jamming ability of radar is greatly improved. This radar system can quickly and accurately identify aircraft, ships and missiles with specific shapes. In particular, it can distinguish between true and false missiles and prevent false confusion.

Electronic frog eyes are also widely used in airports and traffic arteries. At the airport, it can monitor the take-off and landing of aircraft, and call the police in time if it is found that the aircraft is about to collide. On the main road, you can direct the vehicles to prevent them from colliding.

6. The color of colorful butterflies is abrupt, such as the butterfly with double moon pattern and the monarch butterfly with brown veins. Especially butterflies with fluorescent wings, and then turn into gold, green and blue in the sun. Scientists have brought great benefits to military defense by studying the color of butterflies. During World War II, the Germans surrounded Leningrad in an attempt to destroy its military targets and other defense facilities with bombers. Schwarzenegger, an entomologist in the Soviet Union, put forward the principle that the color of butterflies is not easy to be found in flowers, and covered military facilities with butterfly-like camouflage. Therefore, despite the German efforts, the military base in Leningrad remained intact, which laid a solid foundation for winning the final victory. According to the same principle, people later produced camouflage uniforms, which greatly reduced the casualties in the battle.

The constant change of satellite position in space will cause a sudden change of temperature, sometimes the temperature difference can be as high as two or three hundred degrees, which seriously affects the normal work of many instruments. Inspired by the fact that the scales on the butterfly will automatically change their angles with the direction of sunlight to adjust their body temperature, scientists have made the temperature control system of the satellite into a louver style, which has different radiation and heat dissipation capabilities. A temperature-sensitive metal wire is installed at the rotating position of each window, which can adjust the opening and closing of the window with the change of temperature, so as to keep the internal temperature of the satellite constant and solve a major problem in the aerospace industry.

7.dragonfly

Dragonflies can generate local unstable airflow different from the surrounding atmosphere through the vibration of their wings, and use the vortex generated by the airflow to make themselves rise. Dragonflies can soar under a small thrust, not only forward, but also backward and left and right, and its forward flight speed can reach 72 km/h. In addition, the flight behavior of dragonflies is simple, with only two pairs of wings flapping constantly. Scientists have successfully developed a helicopter based on this structural foundation. When an airplane flies at high speed, it often causes violent vibration, and sometimes even breaks its wings, causing the airplane to crash. Dragonflies are safe when flying at high speed, so people follow the example of dragonflies and add weights to the two wings of the plane to solve the thorny problem of vibration caused by high-speed flight.

In order to study the aerodynamics and flight efficiency of gliding flight and collision, a mobile wing (wing) model with four-blade drive and remote horizontal control was developed, and the flight parameters were tested in the wind tunnel for the first time.

The second model tries to install a wing flying at a faster frequency, reaching the speed of 18 vibrations per second. What is different is that this model adopts a device that can variably adjust the phase difference between the front and rear wings.

The central and long-term goal of this research is to study the performance of aircraft driven by "wing" and compare it with the efficiency of aircraft driven by traditional propeller.

Bionics and high technology

1. Scientists invented the artificial dolphin skin which can improve the torpedo speed by studying the tiny swimming resistance of dolphins; And a wheeled vehicle (jumping machine) that imitates kangaroo's movement in the desert.

2. Inspired by the Emperor Penguin, scientists from the Institute of Zoology of the former Soviet Academy of Sciences designed a new type of car-"Emperor Penguin" brand polar off-road vehicle. The wide bottom of this car is directly attached to the snow surface and supported by a wheel spoon, and the driving speed can reach 50 km/h.

A research team of Australian National University has developed a small navigation and flight control device by studying several insects. This device can be used to equip small aircraft for Mars exploration.

Inspired by bionics, British scientists are developing a new submarine, which can swim in an S shape by swinging its tail fin. The main innovation of the new submarine is the use of a device called "trunk actuator". "Elephant trunk" consists of a group of thin and soft hoses, which imitate muscle activity and promote fin movement. This new submarine can be used as an underwater mine-clearing submarine to deal with mines that will detonate at the slightest sound or interference. Ruban looks like a loser. He attaches great importance to the observation and study of objective things. Inspired by natural phenomena, he devoted himself to creating inventions. He cut his finger on the grass while climbing the mountain. He picked the grass and examined it carefully. He found small teeth on both sides of the grass, so he made a logging saw by imitating the grass. When he saw all kinds of birds flying freely in the sky, he cut them into kites with bamboo and wood and flew in the air with the help of the wind. It took a short time to start flying, but after repeated research and continuous improvement, it has been able to fly in the air for a long time.

The invention of the steam engine

Aircraft-bird

Submarine fish

Cars-Beetle

According to the echolocation of bats

Invented radar

According to the eagle's sharp eyes

Invented the eagle eye for pilots.

The revelation of animals to human beings is that fish swim in the water, and human beings learn to swim and invent submarines.

Inspired by birds in the air, man invented the airplane. ………………

butterfly

Colorful butterflies, such as butterflies with double moon patterns, monarch butterflies with brown veins, especially butterflies with fluorescent wings, suddenly turn into gold, green and blue in the sun. Scientists have brought great benefits to military defense by studying the color of butterflies. This paper points out that the color of butterflies is not easy to be found in flowers, and military facilities are covered with butterfly-like camouflage. So according to the same principle, people later produced camouflage clothes.

dragonfly

Dragonflies can generate local unstable airflow different from the surrounding atmosphere through the vibration of their wings, and use the vortex generated by the airflow to make themselves rise. Dragonflies can soar under a small thrust, not only forward, but also backward and left and right, and its forward flight speed can reach 72 km/h. In addition, the flight behavior of dragonflies is simple, with only two pairs of wings flapping constantly. Scientists have successfully developed a helicopter based on this structural foundation. When an airplane flies at high speed, it often causes violent vibration, and sometimes even breaks its wings, causing the airplane to crash. Dragonflies are safe when flying at high speed, so people follow the example of dragonflies and add weights to the two wings of the plane to solve the thorny problem of vibration caused by high-speed flight.

Count.

The invention and development of submarines were inspired by fish diving. 1775, after the North American War of Independence broke out, the British colonial rulers relied on their maritime superiority to assemble a large number of warships and bombed the US navy and army in turn, causing heavy casualties to the US military. At that time, there was a general named David bushnell in the American army. He couldn't stand being bullied by the British and was determined to fight back. He has been thinking hard: how can we sink the enemy ship? From the air, inaccessible; You can't hide from the water. Once, when he walked to the reef by the sea, he suddenly saw a big fish dive under a small fish, jumped up suddenly and bit a small fish. He was greatly inspired by this "naval battle": Can he build a ship like a big fish and dive into the bottom of a British warship unnoticed and sink it? Fish float and sink freely in the water by the swim bladder. Can a boat imitate a swim bladder? Starting from this idea, bushnell and military experts have successfully developed a motorboat that can sneak underwater. The bottom of the boat is a water tank similar to a swim bladder. There are two pumps in the water tank. When the ship sinks into the water, it will fill the cabin with water. When the ship is about to rise, it will press air into the water tank and discharge the water in the ship. Imitating the fin, two propellers are installed, one is forward and backward, and the other is up and down. The motorboat skillfully subdued the British warship on its first voyage and was blown upside down. After gradual improvement, it has become a modern submarine.