"Giant, please ask~!"

Li Zexuan couldn't help but breathe a sigh of relief when he heard Mo Huai's affirmative words, and at the same time he couldn't help but be shocked, since Mo Huai said this, wouldn't it prove that in this era, someone really began to realize what the universe is, which... This makes Li Zexuan feel incredible~!

"The second question, what is power~?"

Li Zexuan is shocked, how can Mo Huai not be shocked~? Regarding the definition of the universe, he saw it from Mozi's handwriting, and he originally thought that this question alone would make Li Zexuan retreat, but he didn't expect that Li Zexuan, a little doll in the fourteenth and fifth five-year years, could actually complete the Jedi counterattack, which made Mo Huai very puzzled. After thinking for a long time, Mo Huai said the second question.

"Force~? Is it the power of strength~? ”

Li Zexuan suspected that he had misheard, and asked with some uncertainty.

Mo Huai nodded and said, "Hmm~!" ”

Li Zexuan smiled, and he opened his mouth and replied: "Force is the interaction between several objects. Interaction means that the motion of an object will change due to the presence of other objects, and the object has only two properties - mass and velocity, so the force can change the state of motion of the object, if the speed of an object is defined by acceleration, then the same object, the greater the force, the greater its acceleration........."

Li Zexuan gushed all the knowledge points about force in the later "Physics" book into words that the ancients could understand, Li Gang listened to it next to him, and he didn't know what the hell Li Zexuan was talking about, but Mo Huai's pupils shrank, and his expression was extremely solemn staring at Li Zexuan, at this moment his heart was like experiencing a storm, and it was difficult to calm down for a long time.

Mozi, the ancestor of the Mo family, once had a detailed definition of "force" in the "Book of Ink", saying: "Force, the reason why the punishment (form) is also striving." That is, the force is what makes the object move, even though the action of the object's motion is called force. In this regard, he gave an example, saying that it is like lifting a heavy object from the bottom up, that is, it can be done because of the strong action. At the same time, Mozi pointed out that when an object is subjected to a force, it also produces a reaction force. For example, when two objects of equal mass collide, the two objects move in opposite directions. If the masses of the two objects are very different, the reaction force will still exist although the object with the highest mass will not move after the collision.

Mozi then gave the definitions of "movement" and "stop". He believes that "movement" is due to the force pushing, and "stop" is the end of the motion state of the object after a certain period of time. Although Mozi did not explicitly point out that the end of the state of motion was due to the existence of resistance, he realized that after the external force disappeared, the state of motion of the object could not exist forever.

To a certain extent, Mozi's research in the field of physics and mechanics is definitely ahead of the whole world for more than 2,000 years~! If Mohist could replace Confucianism as orthodoxy, then China is likely to become the origin and prosperity of world physics~!

After talking for a quarter of an hour, Li Zexuan finally stopped, Mo Zhong and Mo Yun, the two young people, looked at Li Zexuan with no previous contempt, as the core disciples of the Mo family, of course they have a certain understanding of Mozi's handwriting and writings, but most of their time is spent learning martial arts, in comparison, their knowledge reserves in this area are far inferior to Li Zexuan~!

I can't beat it in force, and I can't compare it in terms of knowledge, which makes Mo Zhong and Mo Yun, who have always been the children of hermit masters, feel very hurt in their hearts~!

Mo Huai closed his eyes, digesting what Li Zexuan had just said in his heart, trying to find a little loophole in it, but after a while, he opened his eyes a little depressed, because he found that what Li Zexuan just said was not only impeccable, but also more detailed than what was recorded in the Mo family classics, and even elaborated and proved it in some aspects, some concepts he had never heard of himself, but he had to admit that what Li Zexuan said was very reasonable.

"This question, Li Xiannan, you answered it correctly~!"

Mo Huai looked at Li Zexuan with a complicated face and said.

Although there are rare books of the "Book of Ink" that have been circulated in the world, in the social context of Confucianism, how many people in the whole world will look at this kind of partial books~? And these theories that Li Zexuan said have obviously gone beyond the definition of force in the "Book of Ink", and he has expanded force into a complete and detailed study on the basis of Mozi~!

Where did Li Zexuan's knowledge come from~? Why does he know so much stuff~? Mo Huai's heart has a lot of questions buried, but now is obviously not the time to ask, so he can only endure it.

Li Zexuan smiled slightly, he is really "liking" the Mo family giant in front of him now, where to find such a physics teacher with advanced thinking~! Li Gang has helped him a lot this time~!

The party Li Gang is now confused~! He really wanted to ask Mohuai, how could this be answered correctly~? He didn't understand it at all just now~!

Mo Huai took two steps in place with his hands in his hands, and then he suddenly had a flash of inspiration, turned to Li Zexuan and asked: "The third question, open flame candle, put a small hole behind it, what is the phenomenon behind the small hole~?" ”

After that, he looked at Li Zexuan fixedly, although he knew the answer to this question from the Mo family classics, he only knew that it was not the reason, and he planned to embarrass Li Zexuan later.

Li Zexuan's eyes widened, he now had some doubts about whether this Mohuai was a traverser, and he even knew the image of the small hole~? This is to go to heaven~!

"How~? Li Xiannan can't answer~? ”

Seeing this, Mo Zhong asked a little happily.

Li Zexuan's shock was silent, but in Mo Zhong's eyes, he couldn't answer.

Li Zexuan came back to his senses, forcibly suppressed the shock in his heart, and then smiled: "What's so difficult about this~!" There will be an image of a candle flame standing upside down behind the hole, and the size of the image will change as the hole in the middle moves back and forth. Giant, is what Ben Jue said right or not~? ”

As a modern engineering student, although Li Zexuan easily answered the question of Mohuai, he also had the same questions in his heart as Mohuai, because the imaging of small holes involves the knowledge of geometric optics, how could people in the Tang Dynasty know~?

He didn't know that Mohuai only saw this knowledge from the Mo family classics, and the real proposer of Xiaokong Image was Mozi! Mozi not only has research in mechanics, but also has deep attainments in geometric optics.

………………………………

(End of chapter)