"No, I'm going to die laughing, Brother Bai, isn't right, Dean Bai, are we standing on a ball? If that is the case, aren't those who stand at our feet going to fall head-on somewhere? After thinking about it carefully, but I really couldn't think of where people would fall from this ball, the young officer touched his head and looked at Wu Li as if asking for help, although this kid was younger, he was very smart, which made him very admired.

Wuyuan shook his head at him, but ignored him, the young officer touched his head, and muttered: "If you don't say it, don't say it, what's the big deal"

The education of the academy is different, although the young officer of the son is now close to the brother of the Bai family, he has begun to have independent thinking, and he will no longer be the only second brother Yingquliang and Bai Dong's head as in the past.

Lao Yan Jian nodded, he had a small opinion about the students that Bai Dong had recruited one after another, especially this restless uncle of Qin Guo, who was even more of a troublemaker, who was in the academy all day long, and he didn't know how many times he didn't repent, but he couldn't imagine that he was the first to question Bai Dong? It can be seen that justice is at ease in the hearts of the people, no different from being close to the family, this son is rude on the outside, but he is sincere in his heart, he can know right from wrong, distinguish between good and evil, but what if he is stupid? In the future, I should still care more about this uncle, and I should open a small stove just a small stove.

"The question of the young officer of the prince must also be the question of the teachers and students, you came to tell everyone, what kind of question did you come to ask me a few days ago?"

Bai Dong did not directly answer the young official Gongzi. Instead, he nodded to Wu Yuan. Wu Yuan stood up and was about to answer. Suddenly, someone outside laughed and said, "Since Dean Bai has started class, why don't you call the widow to listen to it?" The widow heard Zhao Feng say that the content of Dean Bai's lecture today is very amazing, which can be said to be unprecedented, and it is even more remarkable than the creation of a new style of poetry and the invention of a new style of writing on the same day. ”

Yingquliang walked in under the escort of Fan Qiang, and there was a sudden sensation in the staircase classroom, not that Qin Jun had anything great, the scholars of the pre-Qin era saw that the monarch of a country was also equal to each other. It's just that this Duke Qin cares so much about learning, which makes people feel so moved, even a highly respected scholar like Lao Yanjian stood up and bowed slightly to Yingqu Liang; The students were even more discussing, Bai Zi's point of view was too sensational, and I don't know if Gong Qin would support or oppose it?

Zhao Feng smiled at Bai Dong and secretly stretched out his thumb, he admired and thanked Bai Dong in his heart. Jun came forward to help Bai Zuogen, he knew this, if it weren't for that. He, Zhao Feng, is still just a nominal old Qin No. 1 God today, how can he be the position of the Great Si Xing? The princes of the world do not have the position of Si Xing now. Qin Guo made an exception because of Bai Zuo, and when he thought of Bai Dong's explanation of the calculation method of latitude and longitude to him that day and the heavy responsibility he would have to shoulder in the future, Zhao Feng felt his blood boiling, like a soldier who was about to rush to the battlefield.

As the prince of Yue Kingdom, Wu Li just nodded and smiled at Yingquliang, and then told his story. Geniuses may always have a lot in common, just like the old Mr. Newton in later generations, who sat quietly under the pear tree for a day, and was suddenly hit on the head by a ripe pear. This time Bai Dong didn't answer, but asked him rhetorically that the fruit was ripe and was about to land, what was there to ask? Wu Li had no choice but to go back

As the Buddhists say, enlightenment is gain, taking or losing, and if you can't realize yourself, you should seek the result as soon as possible, and even if you get the result, the result will not be your own, but you will be confused by the obstacle of knowledge. Physics is not Buddhism, it is not so mysterious, even if there are few college students in later generations who have realized the underground gravity and gravity like Newton, but Bai Dong has more expectations for Wuqi, hoping that he can think more.

Everyone was stunned for a moment, and then burst into laughter, even Lao Yanjian was no exception, and the young officer of the son laughed so much that he pounded the desk in front of him again and again, and shouted loudly: "Wu Yuan, Wu Yuan, I still admire you so much, it turns out that you are a big fool?" Isn't this nonsense, if a pear can fly into the sky, won't it become a bird? ”

Cao'er looked at Wu Yuan blankly, she felt extremely disappointed, the smart young man she valued and admired was so stupid, she really lost any face.

"I'm afraid that when everyone hears such a question, they will say that Wu Yuan is a fool, so I asked him to go back and think about it carefully, and then he came to ask me when he thought clearly, and after less than a day, Wu Zhen really came back, and he told me that the ground under our feet must have a strange power, and it is precisely because of this power that it will firmly absorb us and the plants, animals, and inanimate objects on the ground. I asked him why birds fly? He replied that birds can only fly in the air by inciting the power of their wings, so that they can fly in the air, so if they are injured in flight or have their wings folded, they will also fall to the ground."

Bai Dong nodded with satisfaction with Wu Yuan: "This is a good student who makes the world a teacher to cherish endlessly, able to find problems and think about problems, instead of being conservative and not enterprising, I can tell everyone, Wu Zhen is correct, the ball we are in is precisely because of this power, so that all things can grow according to the negative, it is precisely because of this power that we will not 'fall' down, I have given this power a name, called 'gravity', which means that this power comes from the center of the earth and attracts all things!" ”

Gravity!

The ancients have never lacked wisdom and wisdom, and even far superior to today's people in some aspects, they are just not knowledgeable, they will not be able to understand all kinds of natural phenomena, and now they are awakened by Bai Dong's words, with the wisdom of Lao Yanjian, Meng Ke and Yang Zhu, how can they not understand? Yang Zhu is the most unruly, regardless of Yingquliang's seat, he actually took off a shoe and threw it on top of his head, and then watched it fall on Wei Ying's feet with a 'click', ignoring Wei Ying's angry eyes, clapping his hands and laughing: "Wonderful, wonderful, this underground gravity is very interesting." Baizi, if I have the same way to overcome this gravity as a bird, can I also ride the wind like Liezi and Lao Tzu? ”

Ying Quliang was originally smiling, but when he heard Yang Zhu's words, his face changed slightly, and he quietly glanced at Bai Dong, although Wu Yuan was smart, he still had to be smashed on the head by a pear to touch the spiritual wit, but Ping An Lang seemed to know everything, and the magical country he said was even bigger than Huaxia, which was obviously far away in the depths of the sea, how could he know it? Could it be that this is all what he saw in his dreams? Guiguzi is afraid that he doesn't have such insight, since he knows the truth of bird flight, will he also know the method of human flight? If humans can fly, why is it difficult to find Mount Kinabalu overseas? And whether the legendary Heavenly Court exists, if the widow learns the method of flying, can he fly to the Heavenly Court to ask for an elixir of immortal fruit

The temptation of immortality, of course, ordinary people can't refuse, and the king is even more likely to indulge, with the wisdom and wisdom of Yingquliang, he actually began to complain that Bai Dong hid a lot of secrets and didn't tell him clearly.

"It is precisely because of the existence of gravity that we will stand in this sphere world and not fall 'the sky is round and the place is round' is completely wrong! Truth is the foundation on which we build the science of things, and we must first admit that the world we live in is a sphere, so that we can further explore the truth of this world, such as the prime meridian, longitude and dimension."

"Slow, the old man still has questions!"

Lao Yan Jian got up and said: "Maybe there is really the 'gravity' you said, but this can't prove that the world is a ball?" Isn't it possible for the world with a round sky to have gravity? ”

Bai Dong smiled slightly: "I knew that the old master would ask me like this." I once said in my thinking class, 'Practice is the only criterion for testing truth', now let's go out and test my words with practice! ”

PS: Thank you for the monthly pass support of the "Glass Lights" and "Rare Copper Plate" brothers, thank you :) (To be continued......)