George de Mestral, a Swiss engineer, found burdock burrs on his trousers and pet dog. He found that the small hook on the seed could make it hang on other animals. It took George de Mestra more than ten years of experiments to perfectly reproduce this kind of hook.
2. Sonar
19 12 The sinking of Titanic prompted researchers to try to develop a technology that can detect objects in the sea. 19 15, French physicist paul langevin invented a system to locate underwater objects by using sound waves and echoes, which is what we call sonar technology today. Although it is a new technology for human beings, some animals, such as bats and dolphins, have been using this technology for navigation, predation and search.
Step 3 suck a cup
The sucker is tightly adsorbed on the plane by the principle of vacuum and pressure. They can stick objects on walls or even tall buildings. The earliest recorded artificial sucker appeared in the 1960s of 19, but the sucker of octopus is actually more advanced, and the edge of each sucker has concentric lines, which enables them to absorb uneven surfaces even under water.
4. Shinkansen trains
The Shinkansen train was originally designed to simulate bullets and was successful. But there is a problem with this design. They will make a lot of noise when they leave the tunnel. Eji Nakatsu, an engineer of Shinkansen Train Design Company, applied the beak shape of kingfisher to train design, which not only solved the noise problem, but also increased the energy efficiency and the fastest speed.
5. magnetic tape
Scotch tape was invented by Richard Gurley Drew in 1922. He is a laboratory technician of 3M Company. He is sending sandpaper samples to the local car shop, and he hears the clerk often complain that he will leave tape marks when painting the car. In the next two years, he tried all kinds of adhesives, trying to find a way to remove the tape without leaving a trace, which eventually led to the advent of scotch tape. Gecko in nature can only climb to the surface with fine bristles at the bottom of toes.