The invention of velcro should be specific. Go, go, go! At least 5 points will be added for those who answer within one hour.

It is said that the Swiss inventor George likes to take his dog out for a walk. Once he came home from a walk, he found that his trouser legs and the dog were covered with a seed. Grass seeds stick firmly to dog hair, and it takes some effort to pull them down. George felt very strange. He used keen observation and carefully observed the grass seed with a magnifying glass. Finally, it was found that the fibers of grass seeds and dog hair crossed together. He thought, if these two shapes were adopted, wouldn't a buckle be invented? Since then, there has been a good helper in people's lives-the velcro invented by George. Today, some of the shoes we wear are fastened with velcro, and some of the schoolbags on our backs are also fastened with velcro. George, the inventor of Velcro in Switzerland, is an engineer who likes hunting very much. Every time he comes back from hunting, his trousers and clothes are covered with grass seeds, even if he uses a brush, it is difficult to clean them, so he has to take them off one by one. Once, when he carefully observed the grass seeds he had just picked with a magnifying glass, he was surprised. It turned out that there was an interesting mystery on these small grass seeds. He saw many small hooks on those grass seeds. It is these small hooks that firmly hook his clothes and trousers. He thought, can't you use many cloth belts with small hooks instead of buttons or zippers? After many experiments and studies, he made a belt covered with nylon hooks and a belt covered with dense nylon loops. The two belts are relatively closed, and the small hook just hooks the small ring, which is firmly fixed together, and then they are pulled apart when necessary. George invented this velcro by his in-depth observation, and obtained patents in many countries. George, the inventor of Velcro in Switzerland, is an engineer who likes hunting very much. Every time he comes back from hunting, his trousers and clothes are covered with grass seeds, even if he uses a brush, it is difficult to clean them, so he has to take them off one by one. Once, when he carefully observed the grass seeds he had just picked with a magnifying glass, he was surprised. It turned out that there was an interesting mystery on these small grass seeds. He saw many small hooks on those grass seeds. It is these small hooks that firmly hook his clothes and trousers. He thought, can't you use many cloth belts with small hooks instead of buttons or zippers? After many experiments and studies, he made a belt covered with nylon hooks and a belt covered with dense nylon loops. The two belts are relatively closed, and the small hook just hooks the small ring, which is firmly fixed together, and then they are pulled apart when necessary. George invented this velcro by his in-depth observation, and obtained patents in many countries.