The Revelation of Nature uses plants to judge the weather in 550 words.
In the beautiful nature, scientists have obtained many facts from animals and plants and invented many novel objects.
Everyone must know the story of the carpenter's ancestor Lu Ban inventing the saw. It is said that one year, Luban accepted the task of building the Grand Palace. Building a big palace requires a lot of wood, and Lu Ban takes his disciples up the mountain to cut wood every day. They used axes, and the progress of chopping down trees with axes was very slow. At the end of the day, the disciples were exhausted, but they could only cut a little wood. Occasionally, so he picked a leaf and observed it carefully. He found that the edges of the leaves were serrated. Later, he imitated the appearance of leaves and invented a saw, which greatly improved the progress of cutting down trees.
Before Lu Ban invented the saw, someone was cut by this tree, but after the wound healed, the reason was not investigated.
Nature has given us endless knowledge. Like Lu Ban, we should be good at observing, discovering and thinking when encountering problems. I remember a sentence: there is no shortage of beauty in the world, only the eyes that find beauty.
Nature is really a good teacher for human beings!