When Zhuge Liang was a teenager, he studied hard from Mr. Si Mahui, a water mirror. Zhuge Liang is diligent in thinking. Not only Si Mahui appreciates him, but also Si Mahui's wife attaches great importance to him. She likes this studious and brainy young man. There were no clocks at that time, and there was no sun in rainy days. In order to be punctual, Si Mahui trained roosters to crow on time by feeding them regularly. To study. Zhuge Liang wanted Mr. Wang to extend the lecture time, but Mr. Wang always relied on the crow, so Zhuge Liang thought: If the crow lasts longer, Mr. Wang will extend the lecture time a little. So he brought some food in his pocket when he went to school. It is estimated that when the chicken crows, he will feed it something to eat, and the chicken will not crow when it is full.

After a while, Mr. Sima wanted to know why the chicken didn't crow on time. Careful observation shows that Zhuge Liang fed the chickens when they crowed. Teacher Wang was very angry at first, but he was soon moved by Zhuge Liang's studious spirit, paid more attention to him, and had no reservations about his education. Zhuge Liang is also more diligent. Through Zhuge Liang's own efforts, he finally became a local scholar who knew astronomy and geography.

The most important thing to learn is not to be superstitious about authority.

1590, Galileo made a famous experiment of "two iron balls landing at the same time" on the leaning tower of Pisa, which overthrew Aristotle's theory that "the falling speed of an object is proportional to its weight" and corrected this erroneous conclusion that lasted for 1900.

Lord Rutherford, a famous British nuclear physicist, won the 1908 Nobel Prize in Physics for his research on element fission. He once asserted: "It is meaningless to generate energy by splitting atoms. Anyone who tries to get energy from atomic transformation is talking nonsense. " But a few years later, atomic power generation came out. At present, atomic energy has become the main new energy source for power generation. In France, the utilization rate of atomic energy has even accounted for 40% of all kinds of energy. Coincidentally, in the era of scientific discovery-19th century, when Newton discovered the laws of the universe and Roentgen discovered X-rays, some scientists once asserted that the road to science had come to an end. The task of future scientists is to make experiments as accurate as possible. But soon, Einstein discovered the theory of relativity, which gave the scientific community a new vision.