1, artificial luminescence
In the night sky, under the bright moonlight, fireflies fly out with lanterns. It is our human "teacher". Because scientists invented an eye-friendly light-artificial cold light through the light of fireflies.
As early as 1940s, people made fluorescent lamps on the basis of studying fireflies, which greatly changed people's lighting sources. In recent years, scientists have isolated pure fluorescein from fireflies for the first time.
Later, luciferase was isolated, and then a biological light source composed of fluorescein, luciferase, ATP and water was synthesized by chemical method, which can be used as a flashlight in mines full of explosive gas.
2. Volt battery
There is a strange power generating organ in the electric fish. These generators are made up of many translucent disk-shaped batteries, called electric plates or plates. Due to the different types of electric fish, the shape, position and quantity of the electric plates of the generator are also different.
The generator of electric eel is prismatic and located in the muscles on both sides of the caudate spine. The torpedo generator is shaped like a flat kidney, arranged on both sides of the body midline, with 2 million electric plates. The generator of electric catfish originated from some kind of gland, located between skin and muscle, with about 5 million electric plates.
/kloc-at the beginning of 0/9th century, Italian physicist Volt designed the world's earliest voltaic battery based on electric fish power generation organ. Because this kind of battery is designed according to the natural generator of electric fish, it is called "artificial electric officer"
3. Electronic frog eyes
Electronic frog eye is actually a kind of electronic eye. The front of it is actually a camera. After imaging, it is transmitted to computer equipment through optical cable for display and storage. Its detection range is fan-shaped and can rotate, similar to frog's eyes. Bionic scientist Locke invented the electronic frog eye according to the principle and structure of frog eye.
4. Velcro
Velcro is a kind of belt fabric for connection, which consists of nylon hook belt and nylon velvet belt. Widely used in clothing, backpacks, tents, parachutes, curtains, sofa cover and so on.
The principle of nylon buckle is very simple. This is a fabric made of nylon silk. One belt has many loops (called "suede") woven on its surface, and the other belt has many even small hooks (called "hook surface") woven on its surface. As long as the two straps are aligned and squeezed gently, the ring will be hooked, and the ring can only be torn off by pulling it slightly outward from the head end of the buckle.
Therefore, it can play a connecting role instead of buttons, snap fasteners, zippers and other connecting materials. Its characteristic is that sewing is very convenient, time-saving, fast and soft.
5. Toad rammer
The rammer powered by the motor rotates at work, which drives the rammer to jump, then moves forward and hits the foundation. Work like a frog jumping.
The motor and transmission part are installed on the sliding seat, and the rear end of the tamping frame is hinged with the transmission shaft. Under the centrifugal force of the eccentric block, the rammer frame can swing up and down around this axis. The front end of the rammer frame is provided with a rammer. The rammer will ram the soil when it swings downward, and the slide will move forward when it swings upward. Therefore, every time the frog rammer hits, the body moves forward one step.
Velcro belt has been invented for more than 50 years, which was invented by Swiss engineering teacher Mestral. It is said that he likes outing and hunting. Whenever he comes back from the suburbs, he often finds some Bidens bipinnata seeds sticking to his clothes. It is very troublesome to remove these Bidens bipinnata seeds, which aroused his interest.
Inspired by Bidens bipinnata seeds, after 8 years of careful research, he finally designed a stereotyped product, which is the origin of velcro belt. Although the invention of zipper made dressing more convenient and quick, which caused a sensation in the clothing industry, the invention of belt buckle was even better.