What are the inventions of animal bionics?

1. Spherical Palace: A round nest cleverly woven by the African munia with its beak and feet. It starts from a round bracket, forms a ball, and finally hangs it on a branch.

2. Stable lightweight structure: The cardboard box-shaped nest built by field bees is very delicate. Although it is a lightweight structure, it is incredibly stable.

3. Perfect gluing: The nest of web-weaver ants is made of leaves glued together. Their larvae spit out adhesive and are ideal "glue bottles".

4. Round tower house in the tree: The house of the round tower bird looks like a crumbling firewood pile on the tree, but its structure is very strong and can last for decades, often to The tree was overwhelmed and crushed.

5. "Stove" stove on a tree branch: The bird's nest is made of clay and is usually placed on a relatively stable tree branch. A nest requires about 2,500 grains of clay, which are all brought in by the ovenbird's beak.

6. Platform building complex: Tropical stingless bees use beeswax to build honeycombs. The layers are stacked together, usually 40 layers. The appearance looks like a spaceship in the movie "Star Wars". It can accommodate 100,000 "residents".

7. Air-conditioned castle: Termites can improve the temperature inside the nest through an incredible pipe system, cooling it during the day and heating it at night.

Jellyfish is almost entirely made of water. The water in its body actually accounts for 98%. There is a large amount of liquid between the molecules that make up its body, and it can be obtained from it after refining. Commonly used polymer glues

Lu Ban, a famous craftsman in ancient my country, cut his hand on a silk spear grass when he went up the mountain to cut down trees. He felt strange, how could a small piece of grass be so powerful? After careful observation, he found that the edges of the silk grass leaves had many sharp teeth. So Lu Ban invented the saw for woodworking.

The fly does not have a "nose", so how does it rely on its sense of smell? It turns out that the fly's "nose" - olfactory receptors are distributed on a pair of antennae on the head. A very unique small gas analyzer was successfully copied. This instrument has been installed in the cockpit of the spacecraft to detect the composition of the gas inside the cabin. It can also measure harmful gases in submarines and mines. Using this principle, it can also be used to improve the input device of the computer and the structural principles of the gas chromatography analyzer.

As early as the 1940s, people created fluorescent lamps based on research on fireflies. In recent years, scientists first isolated pure luciferin from the light emitters of fireflies, and later isolated luciferase. , and used chemical methods to artificially synthesize fluorescein. A biological light source mixed with luciferin, luciferase, ATP (adenosine triphosphate) and water can be used as a flashlight in mines filled with explosive gas. Since this kind of light has no power source and does not generate a magnetic field, it can be used to clear magnetic mines under the illumination of biological light sources.

At the beginning of the 19th century, Italian physicist Volta designed the world's earliest voltaic battery using the electric fish's power-generating organ as a model. Because this battery is designed based on the natural generator of electric fish, it is called an "artificial electric organ."

Architecturally, the long-span thin-shell building imitating the shell and the columns imitating the femur structure not only eliminate areas where stress is particularly concentrated, but also use the least building materials to bear the maximum load.

In the military, the groove structure of dolphin skin is imitated, and artificial dolphin skin is applied to the shell of the ship to reduce navigation currents and increase speed;

Understanding the chemical structure of the sex attractant hormone of the forest pest gypsy moth Finally, a similar organic compound was synthesized, which can trap and kill male insects using only one ten-millionth of a microgram in insect traps in the field; share it with your friends: Renren Sina Weibo Happy Network MSNQQ Space

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Radar was invented from bats, and birds invented airplanes. Respondent: gurui2004 | Level 5 | 2009-3-18 18:33

Radar was invented from bats. Respondent: qqwwsop1999 | Level 1 | 2009-3-18 19:08

Bird-Plane

Frog-Electronic Frog Eyes

Shark-Submarine

Chameleon - Plainclothes

Whale - Increase the speed of the ship

Dragonfly - Keep the wings of the plane from shattering

Giraffe - Anti-German suit

Seafish-Heavy Rain Detector

Firefly-Artificial Cold Light

Lobster-Smell Detector

1. A very peculiar small gas analyzer has been copied from a nasty fly. It has been installed in the cockpit of the spacecraft to detect the composition of the gas in the cabin.

2. From fireflies to artificial luminescence;

3. Electric fish and volt batteries;

4. The jellyfish's downwind ears are modeled after the structure and function of the jellyfish's ears. The jellyfish ear storm predictor is designed to predict storms 15 hours in advance, which is of great significance to the safety of navigation and fisheries.

5. Based on the visual principle of frog eyes, people have successfully developed an electronic frog eye. This electronic frog eye can accurately identify objects of specific shapes just like real frog eyes. After installing electronic frog eyes into the radar system, the radar's anti-interference ability is greatly improved. This radar system can quickly and accurately identify aircraft, ships, missiles, etc. of specific shapes. In particular, it can distinguish between real and fake missiles to prevent fakes from being confused with real ones.

Answered by: Salt Vegetable Soup | Level 1 | 2009-3-18 19:08

Insects are small in size, with huge types and numbers, accounting for more than 75% of existing animals, and are found all over the world. They have their own unique survival skills, some of which even humans are inferior to. People are making more and more extensive use of natural resources, especially any achievement in bionics, comes from certain characteristics of living things.

Butterflies and Bionics

The colorful butterflies are brilliant, such as the double-moon swallowtail butterfly, the brown-veined monarch butterfly, etc., especially the fluorescent-winged swallowtail butterfly, whose hind wings are in Under the sun, it sometimes turns golden, sometimes emerald green, and sometimes turns from purple to blue. Scientists have brought great benefits to military defense through research on butterfly colors. During World War II, the German army surrounded Leningrad and attempted to destroy its military targets and other defenses with bombers. Based on people's lack of understanding of camouflage at the time, Soviet entomologist Schwanvich proposed using the colors of butterflies to be difficult to detect among flowers and covering military facilities with butterfly-pattern camouflage. Therefore, despite the German army's efforts, the military base in Leningrad remained safe, laying a solid foundation for the final victory. Based on the same principle, people later produced camouflage uniforms, which greatly reduced casualties in battles.

The continuous changes in the position of artificial satellites in space can cause sudden changes in temperature. Sometimes the temperature difference can be as high as two or three hundred degrees, seriously affecting the normal operation of many instruments. Inspired by the fact that the scales on butterflies automatically change angles to adjust body temperature according to the direction of sunlight, scientists designed the satellite's temperature control system into a blind style with greatly different radiation and heat dissipation capabilities on the front and back sides of the leaves. A temperature-sensitive metal wire is installed at the rotating position of the window. The opening and closing of the window can be adjusted as the temperature changes, thereby maintaining a constant temperature inside the satellite and solving a major problem in the aerospace industry.

Beetles and Bionics

When the beetle defends itself, it can spray "cannonballs" of high-temperature liquid with a foul odor to confuse, stimulate and frighten its enemies. After dissecting it, scientists found that there were three chambers in the beetle's body, which respectively stored dihydric phenol solution, hydrogen peroxide and biological enzymes. Dihydric phenol and hydrogen peroxide flow into the third chamber and mix with biological enzymes to cause a chemical reaction, which instantly turns into 100°C venom and is quickly ejected. This principle is currently used in military technology. During World War II, in order to meet the needs of the war, the German Nazis used this mechanism to create a new type of engine with extremely powerful power and safe and reliable performance. It was installed on the flying missile to make it fly faster, safer and more stable, and improve the hit rate. London, England, suffered heavy losses when it was bombed. U.S. military experts developed an advanced binary weapon inspired by the beetle jet principle. This kind of weapon packs two or more chemical substances that can produce poisons into two separate containers. After the shell is fired, the diaphragm ruptures, and the two poison intermediates mix and occur within 8-10 seconds of the missile's flight. Reaction, generating deadly poison to kill the enemy the moment it reaches the target. They are easy to produce, store, transport, safe and not prone to failure. Fireflies can directly convert chemical energy into light energy with a conversion efficiency of 100, while the luminous efficiency of ordinary electric lamps is only 6. The cold light source made by imitating the luminous principle of fireflies can increase the luminous efficiency by more than ten times, greatly saving energy. In addition, an air-to-ground speedometer developed based on the beetle's optokinetic response mechanism has been successfully used in the aviation industry.

Dragonflies and bionics

Dragonflies can generate local unstable airflow that is different from the surrounding atmosphere through wing vibration, and use the vortices generated by the airflow to make themselves rise. The dragonfly can soar with very little thrust. It can not only fly forward, but also backward and left and right. Its forward flying speed can reach 72km/h. In addition, the flight behavior of dragonflies is simple, relying only on the constant flapping of two pairs of wings. Scientists successfully developed a helicopter based on this structural basis. When an airplane flies at high speed, it often causes violent vibrations, and sometimes even breaks the wings and causes an airplane crash. Dragonflies relied on weighted wing moles to fly safely at high speeds, so people followed the example of dragonflies and added counterweights to the wings of the aircraft to solve the thorny problem of vibration caused by high-speed flight.

In order to study the aerodynamics of gliding flight and collision as well as the efficiency of its flight, a four-blade driven, remotely leveled controlled airfoil (wing) model was developed and tested in a wind tunnel for the first time Various flight parameters were tested within.

The second model attempts to install a wing that flies at a faster frequency, reaching a speed of 18 vibrations per second. What is distinctive is that this model uses a device that can adjust the difference between the two pairs of wings at the front and rear.

The center and long-term goal of the research is to study the performance of aircraft driven by "wings" and compare the efficiency with traditional propeller-driven aircraft.

Flies and Bionics

What is special about the house fly is its fast flight technology, which makes it difficult for humans to catch it. It is difficult to access it even from behind it. It envisions every situation, takes great care, and moves quickly. So, how does it do it?

Entomologists have discovered that the fly's hind wings degenerate into a pair of balancing rods. When it flies, the balance rod vibrates mechanically at a certain frequency, which can adjust the movement direction of the wings. It is a navigator that keeps the fly's body balanced. Based on this principle, scientists developed a new generation of navigator - the vibration gyroscope, which greatly improved the flight performance of the aircraft. It can automatically stop the dangerous roll flight and automatically restore the balance when the aircraft body tilts strongly, even if the aircraft is at its most extreme. It is also foolproof when making complex sharp turns. The compound eye of a fly contains 4,000 single eyes that can image independently and can see almost 360 degrees. objects within range. Inspired by the fly's eye, people made a fly-eye camera composed of 1329 small lenses that can take 1329 high-resolution photos at a time. It is widely used in military, medicine, aviation, and aerospace. Flies have a particularly sensitive sense of smell and can quickly analyze dozens of odors and respond instantly. Based on the structure of the fly's olfactory organ, scientists convert various chemical reactions into electrical pulses to create a very sensitive small gas analyzer. It has been widely used in spacecrafts, submarines, mines and other places to detect gas components. The safety factor of scientific research and production is more accurate and reliable.

Bees and Bionics

A honeycomb is composed of neatly arranged hexagonal prism-shaped small cells. The bottom of each small cell is composed of 3 identical rhombuses. These structures are similar to those in modern times. Mathematicians accurately calculated that the obtuse angle of the rhombus is 109°28' and the acute angle is 70°32', which is exactly the same. It is the most material-saving structure, has large capacity and is extremely strong, which has amazed many experts. People imitate its structure and use various materials to make honeycomb sandwich structural panels. It is strong, light in weight, and difficult to conduct sound and heat. It is an ideal material for construction and manufacturing of space shuttles, spacecrafts, artificial satellites, etc. Each single eye of a bee's compound eye is adjacently arranged with polarizers that are very sensitive to the direction of polarized light and can use the sun to accurately position. Based on this principle, scientists have successfully developed a polarized light navigator, which has been widely used in navigation.

Other Insects and Bionics

The jumping ability of fleas is very strong. Aviation experts have conducted a lot of research on this. A British aircraft manufacturing company was inspired by its vertical take-off method and successfully manufactured A Harrier aircraft that can take off and land almost vertically was launched. Modern television technology has created large-screen color TVs based on the structural characteristics of insects' single compound eyes. It can also combine the fluorescent screens of small color TVs to form a large picture, and several specific small pictures can be framed at any position on the same screen. Both the same picture and different pictures can be played. Scientists have successfully developed a multi-aperture optical system device based on the structural characteristics of insect compound eyes, which makes it easier to search for targets and has been used in some important foreign weapon systems. Based on the principle of mutual suppression between the single eyes that make up the compound eyes of some aquatic insects, the side suppression electronic model is used in various photography systems. The photos taken can enhance the edge contrast and highlight the outline of the image, and can also be used to improve radar The display sensitivity can also be used for preprocessing of text and image recognition systems. The United States has used insect compound eyes to process information and directional navigation principles to develop an engineering model of a terminal homing seeker that imitates insect compound eyes and has great practical value.

Japan has used the morphology and characteristics of insects to develop new construction methods for engineering machines and buildings such as hexapods.

Future Outlook

Insects have gradually evolved with changes in the environment during hundreds of millions of years of evolution, and have developed their own survival skills to varying degrees. With the development of society, people have mastered more and more about the various life activities of insects, and are increasingly aware of the importance of insects to humans. In addition, information technology, especially the new generation of computer bioelectronic technology, has played an important role in entomology. A series of biotechnology projects such as biosensors to detect substance types and concentrations developed to simulate the sensing capabilities of insects, computers that can imitate brain activity developed based on the neural structure of insects, etc., will turn scientists' ideas into reality. , and enter various fields, insects will make greater contributions to mankind. Answer: 876768787 | Level 1 | 2009-3-18 20:26

Insects are small in size and have huge types and quantities, accounting for More than 75% of the living animals are found all over the world. They have their own unique survival skills, some of which even humans are inferior to. People are making more and more extensive use of natural resources, especially any achievement in bionics, comes from certain characteristics of living things.

Butterflies and Bionics

The colorful butterflies are brilliant, such as the double-moon swallowtail butterfly, the brown-veined monarch butterfly, etc., especially the fluorescent-winged swallowtail butterfly, whose hind wings are in Under the sun, it sometimes turns golden, sometimes emerald green, and sometimes turns from purple to blue. Scientists have brought great benefits to military defense through research on butterfly colors. During World War II, the German army surrounded Leningrad and attempted to destroy its military targets and other defenses with bombers. Based on people's lack of understanding of camouflage at the time, Soviet entomologist Schwanvich proposed using the colors of butterflies to be difficult to detect among flowers and covering military facilities with butterfly-pattern camouflage. Therefore, despite the German army's efforts, the military base in Leningrad remained safe, laying a solid foundation for the final victory. Based on the same principle, people later produced camouflage uniforms, which greatly reduced casualties in battles.

The continuous changes in the position of artificial satellites in space can cause sudden changes in temperature. Sometimes the temperature difference can be as high as two or three hundred degrees, seriously affecting the normal operation of many instruments. Inspired by the fact that the scales on butterflies automatically change angles to adjust body temperature according to the direction of sunlight, scientists designed the satellite's temperature control system into a blind style with greatly different radiation and heat dissipation capabilities on the front and back sides of the leaves. A temperature-sensitive metal wire is installed at the rotating position of the window. The opening and closing of the window can be adjusted as the temperature changes, thereby maintaining a constant temperature inside the satellite and solving a major problem in the aerospace industry.

Beetles and Bionics

When the beetle defends itself, it can spray "cannonballs" of high-temperature liquid with a foul odor to confuse, stimulate and frighten its enemies. After dissecting it, scientists found that there were three chambers in the beetle's body, which respectively stored dihydric phenol solution, hydrogen peroxide and biological enzymes. Dihydric phenol and hydrogen peroxide flow into the third chamber and mix with biological enzymes to cause a chemical reaction, which instantly turns into 100°C venom and is quickly ejected. This principle is currently used in military technology. During World War II, in order to meet the needs of the war, the German Nazis used this mechanism to create a new type of engine with extremely powerful power and safe and reliable performance. It was installed on the flying missile to make it fly faster, safer and more stable, and improve the hit rate. London, England, suffered heavy losses when it was bombed. U.S. military experts developed an advanced binary weapon inspired by the beetle jet principle. This kind of weapon packs two or more chemical substances that can produce poisons into two separate containers. After the shell is fired, the diaphragm ruptures, and the two poison intermediates mix and occur within 8-10 seconds of the missile's flight. Reaction, generating deadly poison to kill the enemy the moment it reaches the target. They are easy to produce, store, transport, safe and not prone to failure. Fireflies can directly convert chemical energy into light energy with a conversion efficiency of 100, while the luminous efficiency of ordinary electric lamps is only 6. The cold light source made by imitating the luminous principle of fireflies can increase the luminous efficiency by more than ten times, greatly saving energy.

In addition, an air-to-ground speedometer developed based on the beetle's optokinetic response mechanism has been successfully used in the aviation industry.

Dragonflies and bionics

Dragonflies can generate local unstable airflow that is different from the surrounding atmosphere through wing vibration, and use the vortices generated by the airflow to make themselves rise. The dragonfly can soar with very little thrust. It can not only fly forward, but also backward and left and right. Its forward flying speed can reach 72km/h. In addition, the flight behavior of dragonflies is simple, relying only on the constant flapping of two pairs of wings. Scientists successfully developed a helicopter based on this structural basis. When an airplane flies at high speed, it often causes violent vibrations, and sometimes even breaks the wings and causes an airplane crash. Dragonflies relied on weighted wing moles to fly safely at high speeds, so people followed the example of dragonflies and added counterweights to the wings of the aircraft to solve the thorny problem of vibration caused by high-speed flight.

In order to study the aerodynamics of gliding flight and collision as well as the efficiency of its flight, a four-blade driven, remotely leveled controlled airfoil (wing) model was developed and tested in a wind tunnel for the first time Various flight parameters were tested within.

The second model attempts to install a wing that flies at a faster frequency, reaching a speed of 18 vibrations per second. What is distinctive is that this model uses a device that can adjust the difference between the two pairs of wings at the front and rear.

The center and long-term goal of the research is to study the performance of aircraft driven by "wings" and compare the efficiency with traditional propeller-driven aircraft.

Flies and Bionics

What is special about the house fly is its fast flight technology, which makes it difficult for humans to catch it. It is difficult to access it even from behind it. It envisions every situation, takes great care, and moves quickly. So, how does it do it?

Entomologists have discovered that the fly's hind wings degenerate into a pair of balancing rods. When it flies, the balance rod vibrates mechanically at a certain frequency, which can adjust the movement direction of the wings. It is a navigator that keeps the fly's body balanced. Based on this principle, scientists developed a new generation of navigator - the vibration gyroscope, which greatly improved the flight performance of the aircraft. It can automatically stop the dangerous roll flight and automatically restore the balance when the aircraft body tilts strongly, even if the aircraft is at its most extreme. It is also foolproof when making complex sharp turns. The compound eye of a fly contains 4,000 single eyes that can image independently and can see almost 360 degrees. objects within range. Inspired by the fly's eye, people made a fly-eye camera composed of 1329 small lenses that can take 1329 high-resolution photos at a time. It is widely used in military, medicine, aviation, and aerospace. Flies have a particularly sensitive sense of smell and can quickly analyze dozens of odors and respond instantly. Based on the structure of the fly's olfactory organ, scientists convert various chemical reactions into electrical pulses to create a very sensitive small gas analyzer. It has been widely used in spacecrafts, submarines, mines and other places to detect gas components. The safety factor of scientific research and production is more accurate and reliable.

Bees and Bionics

A honeycomb is composed of neatly arranged hexagonal prism-shaped small cells. The bottom of each small cell is composed of 3 identical rhombuses. These structures are similar to those in modern times. Mathematicians accurately calculated that the obtuse angle of the rhombus is 109°28' and the acute angle is 70°32', which is exactly the same. It is the most material-saving structure, has large capacity and is extremely strong, which has amazed many experts. People imitate its structure and use various materials to make honeycomb sandwich structural panels. It is strong, light in weight, and difficult to conduct sound and heat. It is an ideal material for construction and manufacturing of space shuttles, spacecrafts, artificial satellites, etc. Each single eye of a bee's compound eye is adjacently arranged with polarizers that are very sensitive to the direction of polarized light and can use the sun to accurately position. Based on this principle, scientists have successfully developed a polarized light navigator, which has been widely used in navigation.

Other Insects and Bionics

The jumping ability of fleas is very strong. Aviation experts have conducted a lot of research on this. A British aircraft manufacturing company was inspired by its vertical take-off method and successfully manufactured A Harrier aircraft that can take off and land almost vertically was launched.

Modern television technology has created large-screen color TVs based on the structural characteristics of insects' single compound eyes. It can also combine the fluorescent screens of small color TVs to form a large picture, and several specific small pictures can be framed at any position on the same screen. Both the same picture and different pictures can be played. Scientists have successfully developed a multi-aperture optical system device based on the structural characteristics of insect compound eyes, which makes it easier to search for targets and has been used in some important foreign weapon systems. Based on the principle of mutual suppression between the single eyes that make up the compound eyes of some aquatic insects, the side suppression electronic model is used in various photography systems. The photos taken can enhance the edge contrast and highlight the outline of the image, and can also be used to improve radar The display sensitivity can also be used for preprocessing of text and image recognition systems. The United States has used insect compound eyes to process information and directional navigation principles to develop an engineering model of a terminal homing seeker that imitates insect compound eyes and has great practical value. Japan has used the morphology and characteristics of insects to develop new construction methods for engineering machines and buildings such as hexapods.

Future Outlook

Insects have gradually evolved with changes in the environment during hundreds of millions of years of evolution, and have developed their own survival skills to varying degrees. With the development of society, people have mastered more and more about the various life activities of insects, and are increasingly aware of the importance of insects to humans. In addition, information technology, especially the new generation of computer bioelectronic technology, has played an important role in entomology. A series of biotechnology projects such as biosensors to detect substance types and concentrations developed to simulate the sensing capabilities of insects, computers that can imitate brain activity developed based on the neural structure of insects, etc., will turn scientists' ideas into reality. , and enter various fields, insects will make greater contributions to mankind. Respondent: Pink Jingjing | Level 1 | 2009-3-18 20:37

fcdg Respondent: Room Open | Level 1 | 2009-3-19 19:29

Today, my nephew asked me two questions: On what basis was the airplane invented? What did humans invent based on dandelions? I was really confused at the time, but after thinking about it, I told him: Mockingbird invented the airplane, and the parachute was invented based on the dandelion! ! I found some from the Internet and share them with you:

1. A very peculiar small gas analyzer has been copied from a nasty fly. It has been installed in the cockpit of the spacecraft to detect the composition of the gas in the cabin.

2. From fireflies to artificial luminescence;

3. Electric fish and volt batteries;

4. The jellyfish's downwind ears are modeled after the structure and function of the jellyfish's ears. The jellyfish ear storm predictor is designed to predict storms 15 hours in advance, which is of great significance to the safety of navigation and fisheries.

5. Based on the visual principle of frog eyes, people have successfully developed an electronic frog eye. This electronic frog eye can accurately identify objects of specific shapes just like real frog eyes. After installing electronic frog eyes into the radar system, the radar's anti-interference ability is greatly improved. This radar system can quickly and accurately identify aircraft, ships, missiles, etc. of specific shapes. In particular, it can distinguish between real and fake missiles to prevent fakes from being confused with real ones.

Electronic frog eyes are also widely used in airports and traffic arteries. At the airport, it can monitor the takeoff and landing of aircraft, and if it detects that the aircraft is about to collide, it can issue an alarm in time. In traffic arteries, it can direct the movement of vehicles and prevent vehicle collisions.

6. Based on the principle of bat ultrasonic locator, people also imitated the "pathfinder" for blind people. This pathfinder is equipped with an ultrasonic transmitter, which can be used by blind people to find electric poles, steps, people on bridges, etc. Nowadays, "ultrasound glasses" with similar functions have been made.

7. By simulating the incomplete photosynthesizer of cyanobacteria, a biomimetic photolysis water device will be designed to obtain a large amount of hydrogen.

8. Based on research on the human skeletal muscle system and bioelectrical control, a human enhancement device - a walking machine - has been imitated.

9. The hooks of modern cranes originated from the paws of many animals.

10.

The roof corrugations imitate animal scales.

11. The oars imitate the fins of a fish.

12. The saw is learned from the mantis arm, or sawgrass.

13. The Xanthium plant inspired Velcro.

14. Lobsters with a keen sense of smell provide ideas for people to build odor detectors.

15. Gecko toes offer encouraging prospects for making sticky tape that can be used over and over again.

16. Bay uses its proteins to create a colloid that is so strong that such a colloid could be used in everything from surgical sutures to boat repairs.

17. Squid and torpedo bait The bladder in the squid's body can secrete black liquid. When it encounters danger, it will release this black liquid to trick attackers into taking the bait. Submarine designers copied this feature of the squid and designed torpedo decoys. The torpedo lure is like a pocket submarine. It can sail according to the original course of the submarine without changing the speed. It can also simulate noise, spiral beat, acoustic signal and Doppler tone changes, etc. It is this vivid performance that makes it difficult to distinguish the authenticity of an enemy submarine or an attacking torpedo, and ultimately allows the submarine to escape.

18. Spiders and Armor Biologists have found that the strength of spider silk is equivalent to five times that of steel wire of the same volume. Inspired by this, a technology company in Cambridge, UK, trial-produced high-strength fibers like spider silk. Composite materials made from this fiber can be used to make structural materials such as body armor, bulletproof vehicles, tanks and armored vehicles.

19. Giraffes and "anti-giraffe suits" The giraffe is currently the tallest animal in the world. The distance between its brain and heart is about 3 meters. It relies entirely on blood pressure as high as 160~260 mmHg to send blood. to the brain. According to general analysis, when a giraffe lowers its head to drink water, the brain is lower than the heart, and a large amount of blood will flow into the brain, causing the blood pressure to increase even more. Then the giraffe will die from diseases such as cerebral congestion or blood vessel rupture while drinking water. However, the thick skin wrapped around the giraffe tightly hugs the blood vessels and limits blood pressure. Aircraft designers and aviation biologists designed a novel "anti-gravity suit" based on the principles of giraffe skin, thus solving the problem. The pilot of a super-fast fighter jet suffers from cerebral ischemia when suddenly accelerating into a climb. There is a device in this "anti-gravity suit" that can compress the air when the aircraft accelerates, and can also produce corresponding pressure on blood vessels, which is more powerful than the thick skin of a giraffe.

20. The "whaleback effect" of whales and submarines. Contemporary nuclear submarines can submerge under the ice for a long time, but if they launch missiles under the ice, they must break through the ice and float up, which encounters mechanical problems. problem. Diving experts were inspired by the fact that whales must break through the ice to breathe every 10 minutes. In terms of the protruding command platform enclosure and superstructure at the top of the submarine, they strengthened the material strength and made the shape imitate the whale's back. As expected, they achieved "the best performance" when breaking ice. The whaleback effect.”

21. Butterfly and Satellite Temperature Control System When artificial satellites traveling in space are subject to strong sunlight radiation, the temperature of the satellite will be as high as 200 degrees Celsius; in the shadow area, the temperature of the satellite will drop to about minus 200 degrees Celsius. This can easily bake or freeze the precision instruments on the satellite, which once caused aerospace scientists a headache. Later, people were inspired by butterflies. It turns out that a layer of tiny scales grows on the surface of the butterfly's body, and these scales regulate body temperature. Whenever the temperature rises and the sun shines directly, the scales automatically open to reduce the radiation angle of the sun, thereby reducing the absorption of sunlight heat energy; when the outside temperature drops, the scales automatically close and stick to the body surface, allowing direct sunlight to reach the scales. Keep body temperature within normal range. After research, scientists have designed a temperature control system for artificial earth satellites that looks like butterfly scales.