Biomimicry essay 400 words, bionics essay 400 words

From fireflies to artificial cold light.

Since the invention of electric light, life has become much more convenient and richer. But electric light can only convert a small part of the electrical energy into visible light, and most of the rest is wasted in the form of heat, and the heat rays of electric lights are harmful to the human eye. So, is there a light source that only emits light but does not heat up?

Humanity has turned its attention to nature again.

In nature, there are many organisms that can emit light, such as bacteria, fungi, worms, mollusks, crustaceans, insects and fish, etc., and the light emitted by these animals does not produce heat, so it is also called "cold light".

Among the many light-emitting animals, fireflies are one of them. There are about 1,500 species of fireflies, and the colors of their cold light range from yellow-green to orange, and the brightness of the light varies. The cold light emitted by fireflies not only has a high luminous efficiency, but also the cold light emitted is generally very soft, which is very suitable for human eyes, and the intensity of the light is relatively high.

Therefore, biolight is a kind of light that is ideal for human beings.

Scientists have found that the glowing device of the firefly is located in the abdomen. This luminaire is composed of three parts: a light-emitting layer, a transparent layer and a reflective layer. The luminescent layer has thousands of light-emitting cells, and they all contain two substances, luciferin and luciferase.

Under the action of luciferase, luciferin fluoresces when it is oxidized with the participation of intracellular water. The luminescence of fireflies is essentially the process of converting chemical energy into light energy.

Back in the 40s, fluorescent lamps were created based on the study of fireflies, which changed the source of human lighting a lot. In recent years, scientists have isolated pure luciferin from the luminescent device of fireflies, and later isolated luciferase, and then chemically synthesized fluorescein. A biological light source composed of a mixture of luciferin, luciferase, ATP (adenosine triphosphate) and water, which can be used as a flash lamp in mines filled with ** gas.

Since this light has no power source and does not generate a magnetic field, it can be illuminated by a biological light source to remove magnetic mines.

Nowadays, people can use the method of mixing certain chemicals to obtain cold light similar to biological light, which is used as safety lighting.

Biomimicry, the science of building technological devices in imitation of living beings, is a new marginal science that emerged only in the middle of the century. Biomimicry studies the structure, function and working principles of living things, and transplants these principles into engineering technology, inventing instruments, devices and machines with superior performance and creating new technologies. From the birth and development of bionics to just a few decades now, its research results have been very impressive.

Flies, for example, are the spreaders of germs, and everyone hates them. However, the wings of flies (also known as balance sticks) are "natural navigators", and people imitate them to make "vibrating gyroscopes". This instrument is already being used in rockets and high-speed aircraft, and it has achieved autonomous driving.

The fly's eye is a kind of "compound eye", which is composed of more than 30o0 small eyes, and people imitate it to make a "fly's eye lens". The "fly's eye lens" is made of hundreds or thousands of small lenses neatly arranged and combined, and it can be used as a lens to make a "fly's eye camera", which can take thousands of identical photos at a time. These cameras have been used for printing plates and for mass copying of tiny circuits of electronic computers, greatly improving ergonomics and quality.

The "fly's eye lens" is a new type of optical component, and it has many uses.

That's the beauty of biomimicry.

Biomimicry gives 15 examples:

1。Succeeded in the imitation of a very peculiar small gas analyzer by a nasty fly. It has been installed in the cockpit of a spacecraft to detect the composition of the gases in the cabin.

2。From fireflies to artificial cold light.

3。Electric fish with volt batteries;

4。The downwind ears of jellyfish, imitating the structure and function of jellyfish ears, designed the jellyfish ear storm instrument, which can predict the storm 15 hours in advance, which is of great significance to the safety of navigation and fishery.

5。According to the visual principle of frog eyes, people have successfully developed an electronic frog eye. This electronic frog eye can identify objects of a specific shape with the same accuracy as a real frog eye.

After the electronic frog eye is installed in the radar system, the anti-jamming ability of the radar is greatly improved. This radar system can quickly and accurately identify specific shapes of aircraft, ships, missiles, etc. In particular, it can distinguish between real and fake missiles and prevent the real from being confused with the real.

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 can issue an alarm if it detects that the aircraft is about to collide. In the traffic arteries, it can direct the driving of vehicles and prevent the occurrence of vehicle collisions.

6。According to the principle of the bat ultrasound locator, people also imitated the "pathfinder" for the blind. This pathfinder is equipped with an ultrasonic emitter that a blind person can carry to spot people on electric poles, steps, bridges, etc. Today, "ultrasound glasses" with a similar effect have also been made.

7。An incomplete photosynthesizer that mimics cyanobacteria will be designed to bionic photolyzed water, so that a large amount of hydrogen can be obtained.

8。Based on the study of the human skeletal muscular system and bioelectric control, a human augmenter - a walking machine has been imitated.

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

10。The roof corrugated roof mimics the scale armor of animals.

11。The oars mimic the fins of a fish.

12。The saw learns the mantis arm, or sawgrass.

13。Xanthium was inspired to invent Velcro.

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

15。Gecko toes offer an encouraging prospect for creating adhesive tapes that can be used over and over again.

16。The colloids produced by shellfish from their proteins are so strong that they can be used for everything from surgical sutures to ship repairs. Good luck.

Scientists have established a new discipline – biomimicry – by taking closer care of the many wonders that occur in nature and the animal kingdom. Biomimicry is an independent fringe science that combines zoology, physics, chemistry, psychology and engineering technology. Simulating the functions of animals in order to improve existing and create new machinery, building structures and new materials, instruments and process research have created many advanced technologies suitable for production, learning and human life.

The emergence of airplanes is undoubtedly from people's direct imitation of birds, and the realization of many functions such as vertical take-off and landing of modern aircraft, and U-turn after fixed suspension in the air is also deeply inspired by birds and mosquitoes.

Boats and submarines come from people's imitations of fish and dolphins. Biologists have studied spider silk to create high-grade silk threads, tear-resistant parachutes, and high-strength cables for temporary suspension bridges.

The Sidewinder missile is a modernization developed by scientists imitating the snake's "hot eye" function and the principle that its tongue is arranged with a natural infrared perception ability similar to a camera device.

There are countless examples of human beings simulating animal color-changing techniques, developing military camouflage clothing, simulating the compound eyes of dragonflies and praying mantises to create radar and frog eye radar, and so on.

The "nose" has only one "nostril" that communicates with the outside world and contains hundreds of olfactory nerve cells. If a smell enters the "nostrils", these nerves immediately.

If the homework help product is sick, it is not light, and it will die.

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