Throughout the ages, all supplies have been innovated from a trace of inspiration. When a newly invented object appears, the convenience of the object has improved a little, but it is a big step in human evolution. From the primitive human drilling wood to make fire; to the saw invented by carpenter Lu Ban; to the later discovery of radar, it shows that everything needs inspiration.

Innovation comes from inspiration, and inspiration comes from the ancients seeing the flames. In primitive society, the forest was full of vitality and all things competed. The ancients ate raw meat and drank cold blood. When a thunderbolt struck, the forest was ignited. Some animals failed to escape, and the charred meat exuded a hint of fragrance. The ancients hunted and found that the charred meat was more fragrant than the raw meat. The ancestors looked at each other, and there seemed to be a flash of inspiration in their eyes. If the meat is grilled with fire, wouldn’t it be better than raw meat! Later, some people kept the fire to grill food, and found that the fire was kept for a short time. Later, someone discovered that the friction of wood can generate heat, and through hard work, they invented drilling wood to make fire. This seemingly small and simple invention has made human beings evolve a big step forward.

Innovation comes from inspiration, and inspiration comes from Lu Ban seeing the grass. During the Spring and Autumn Period and the Warring States Period, it was really laborious for people to make trees into flat and smooth wooden boards, but Lu Ban carefully observed in practice, imitated the biological form, and invented many wood tools. Once, Lu Ban went into the mountains to cut trees, his feet slipped, and his hands were cut by weeds. He picked up the leaves and rubbed them gently with his hands. It turned out that there were sharp teeth on both sides of the leaves. He used the dense teeth to slide gently on his hands, and a cut was made on the back of his hand... Hey! Yes! If it is made into a tool for cutting wood, wouldn’t it be faster and more labor-saving? It’s the best of both worlds! After many experiments, a sharp saw was finally invented. This seemingly small innovation has changed the progress of human beings a big step forward, because it comes from inspiration.

Innovation comes from inspiration, and inspiration comes from Spallanz sees flying bats. Long ago, Italian scientist Spallanzani released several bats from cages. The bats shook their thin-film wings and flew lightly into the night sky, making a "squeaking" sound. Spallanzani was puzzled because he had pierced the bats' eyes before releasing them. Looking at the bats flying freely in the sky, he thought: How can the bats fly so freely after their eyes were pierced by me? He carefully studied, experimented, looked up books, summarized, and verified. He found that bats fly by emitting ultrasonic waves. They are emitted from their mouths and reflected into their ears after hitting objects. Then the distance of prey or obstacles is judged based on the reflection time and flight speed. Looking at the flying bats, it seemed that it would be nice to invent a device that can judge the enemy through ultrasonic waves. He experimented, invented, innovated, and created radar. This seemingly small innovation has changed human innovation in various fields.