Curiosity is curiosity, but this question hurts the Son of Heaven very much.

Even though Liang Xiao gave several examples, he didn't understand why the arrows he shot ended up falling back to the ground. In his opinion, he is a matter of course, and he doesn't need to think about it at all, and it is estimated that there will be no second person to think about it except Liang Xiao.

This wasn't originally a problem. However, once Liang Xiao raised this question, it became a problem.

A seemingly unsolvable problem.

The Son of Heaven has a headache. He came to Huainan Mansion to seek answers. Now I haven't found the answer yet, but there is one more problem, which is really a headache.

"Then why did the arrows fall back to the ground?"

"I've been thinking about this question for a long time, and I think I've been thinking about it since I learned to shoot." Liang Xiao let out a long breath. "It wasn't until the last time I swam in the West Sea that I suddenly figured out this problem."

"You've been thinking about it for so long?" The Son of Heaven smiled, and his wounded self-esteem was finally comforted a little. "And how did you figure it out?"

"It's like a stone will sink into the water and a wood will float on the water. Your Majesty, why does the stone sink but the wood does not? ”

"Poof!" The self-confidence that the Son of Heaven had just recovered suddenly shattered into slag again. He looked at Liang Xiao helplessly. I'm here to ask questions, not to answer questions, okay?

Liu An, the king of Huainan who had been listening beside him, finally seized the opportunity and interjected. "Because stone is heavy, wood is light."

Liang Xiao turned his head. "Has Uncle ever seen mercury?"

Liu An nodded proudly and showed a reserved smile. Mercury is indeed rare, but it can't help it. Mercury is often used in the art of yellowing and white.

"If you put a stone in mercury. What will be the result? ”

The smile on Liu An's face suddenly froze. Mercury is such a precious elixir. Who would be bored enough to throw a stone in mercury. Isn't this the same as putting **** in grape wine?

Liang Xiao asked: "I heard that stones will float on mercury and will not sink, is it true?" ”

Liu An's old face was slightly red. He really didn't know about it, he hadn't heard of it. The gentleman is ashamed of not knowing it, and today he is ashamed.

"I haven't seen anything about mercury, so I don't talk about it. But water is everywhere. Stones will sink. Wood floats because stones are heavy and wood is light. Specifically, it should be that the stone is heavier than the water and the wood is lighter than the water, so the stone will sink and the wood will float. ”

"Makes sense." The Son of Heaven nodded again and again.

"That's how it should be." Liu An also nodded again and again, agreeing.

Liu Ling smiled and said nothing, staring at Liang Xiao with a pair of wonderful eyes. Of the few people here, only she knows best what Liang Xiao is doing.

"So. The arrow will fall, and it should be that the arrow is heavier than the air. The clouds do not fall. It should be that the clouds are lighter than the air. ”

"Not bad." The Son of Heaven nodded again.

Liang Xiao then asked, "But why doesn't the fire meteor fall?" ”

The Son of Heaven rolled his eyes, annoyed and angry. "You just said it, after going around in circles for a long time, what do you want to say?"

"Your Majesty, don't be indignant, don't be angry."

"Uh-" The Son of Heaven was speechless, his eyes widened, but he couldn't say a word. "If you don't be angry, you don't make a fuss, and if you don't take one corner and don't use three corners, you won't do it again", these are the words in the Analects, but anyone who has read Confucianism knows it. However, when this sentence came out of Liang Xiao's mouth, why was it so awkward?

Well, despised again. Although I read Confucius's book, I didn't read it in my heart, let alone put it into action, so I was taught a lesson by a martial artist like Liang Xiao.

"Because the meteors are moving. Once the fire meteor stops, it will naturally droop. The arrow also makes sense, and it fell because the flight speed slowed down......"

Liang Xiao talked for a long time, and it was easy to explain the Son of Heaven and Liu An. To say that these two people are probably among the smartest people in the world, but Liang Xiao has made it clear to them the simplest gravity and free fall, and it has indeed taken a lot of effort to use a language that they can understand. The most important thing is that he also puts on a layer of disguise, so that they feel that this is like a Han Dynasty person's enlightenment, rather than appearing out of thin air.

Even so, he didn't dare to say everything, he couldn't explain how the specific gravitational acceleration was obtained. He can only give one result, and as things fall from a height, they get faster and faster.

"So, you don't have a formula?" The Son of Heaven was a little disappointed.

"Not yet." Liang Xiao said confidently: "However, give me another month or two, I think I should be able to write a formula." He glanced at Liu Ling, and there was a little more pride and happiness in his eyes. Ling'er is proficient in arithmetic in the Western Regions, and with her help, the formula is about to come out. ”

The Son of Heaven rolled his eyes, didn't speak, and suddenly had an idea.

"Your Majesty, do you think this archery is worth a thousand gold?"

The Son of Heaven glared at Liang Xiao angrily. "There is a formula, maybe it can be worth a thousand gold. You don't have a set formula at all now, where is it worth a thousand gold. ”

"The formula will be available soon, and when the time comes, the minister will definitely dedicate it to His Majesty as soon as possible."

"Humph!" The Son of Heaven snorted, and stopped talking, but he secretly thought in his heart that this formula was about to come out, and it was impossible to say who would get the formula first. Wait for me to preemptively write out the formula, so that you can see how smart I am.

The Son of Heaven had something in his heart, so he didn't stay anymore and hurried back to the palace.

After sending off the Son of Heaven, Liu An returned to the hall and glanced at Liang Xiao meaningfully. "You can take the formula out now, right?"

Liang Xiao smiled. "Why did Uncle say that?"

"I don't understand what you're saying, but I can understand people." Liu An took a seat and said calmly: "You said so much today, just to tell the Son of Heaven that your Huang Lao's skills are all small skills, which can bring him benefits, but will not interfere with his government affairs." ”

Liang Xiao smiled and said nothing, although Liu An is a scholar, he still has vision, especially when it is not related to his own interests.

However, if you don't fight, it is in line with the righteousness of Huang Lao Dao. I was a little worried about your safety, but now it seems that I was too worried. Liu An sighed lightly with relief and stroked Liu Ling's bun. Ling'er, my father's vision is not as good as yours. It's okay this way, you are safe, and your father has one less to worry about. ”

Liang Xiao pouted secretly. This old scholar obviously wanted to "pursue profits", but he was embarrassed to open his mouth and played the warmth card.

Liu Ling hugged Liu An's arm and said with a smile: "Father doesn't have to worry, the husband has his own arrangements, as long as the father always has the teachings of the saint in his heart, abides by the easy way, and does everything all day long, he will naturally be not to blame." ”

"It's not that easy." Liu An sighed: "Providence is impermanent, who knows which cloud will rain?" The gentleman's heart is unpredictable, who knows which villain will sue? King of Jiangdu ......"

"Father, what are you talking about, do you want to compare yourself with Liu Jian's kind of beast that corrupts human morality." Seeing that Liu An sighed with emotion, and compared Liang Xiao to a villain without words, Liu Ling was angry and immediately stopped it.

Liu An was embarrassed. However, he knew in his heart that even if Liu Jian corrupted people, compared to the plan in his heart, it was not worth mentioning.

"Don't say it, don't say it." Liu An disguised it: "How about it, tell my father how it feels to be a first-time wife?" Ling'er, you have been smart since you were a child, I have always treated you as a man, and now that you are married, you can no longer be the same as before, and Bo Ming will do what you will do in the future. Do you hear that? ”

"My daughter knows." Liu Ling nodded, and said: "I have discussed with my husband, when you return to China, we will go back with you and accompany the queen mother and brother Wang." When I got married, they didn't come, so I just went back to see them together. ”

"Okay, okay." Liu An nodded happily.

"There's one more thing." Liu Ling looked at Liang Xiao. Liang Xiao smiled and motioned for her to speak directly. Liu Ling said: "When I arrive in Chang'an, the business of the South China Sea will not be done again, and I will hand it over to my father together." The father arranged for trustworthy people to run the business. My father kept those boats for me to take care of, and maybe I would use them when I could. ”

Liu An agreed. He was playing the idea of those few building boats, and Liu Ling handed over the building ships to him, which can be said to be in the right hands.

"Although the ships have been modified, they are still only suitable for offshore navigation. If you want to get in and out of the turmoil, you need to do more research. Deng Guobin, I'm going to take it away, there are 3,000 people in the house, you pick a few available people, and the husband will teach them as much as he knows. ”

Liu An was overjoyed. He looked at Liu Ling and then at Liang Xiao. "This ...... Could it be that the strategy of profit? ”

"It's still a way to avoid harm." Liang Xiao said: "However, you can see it as a profitable strategy. Dou Ying went to the emperor and suggested that he should conquer South Vietnam and restore the Qin homeland. The land of Henan in the north has been obtained, and it is imminent to seize Yinshan, and it is time to go south. To take South Vietnam, it is most labor-saving to use a boat. At this time, Huainan studied the building ship and navigation technology, and the resistance was the least. ”

"The Son of Heaven wants to take South Vietnam?" Liu An was worried. "At the beginning, 500,000 Qin troops took South Vietnam, and they were spinning and lost, and the sound was still in their ears, how could Dou Ying make such a decision?"

"One time, another time." Liang Xiao said: "Yingzheng's southern expedition was after a hundred battles, but now it is the work of 60 years of recuperation, how can it be the same day? Uncle, once South Vietnam is incorporated into the territory of the Han Dynasty, there is no need for Huainan to exist, and there is not much time left for you. If you can't take advantage of this opportunity to move to the frontier, you might want to take another path. ”

Liu An frowned. "What way?"

"Stand up with peace of mind and say that like Confucius, be a saint who preaches."

Liu An thought for a long time and shook his head. "It's a good path, but it's not something I can choose."

Liang Xiao didn't say anything more. He gave Liu An another choice, if Liu An didn't choose, then he could only go all the way to the dark. For him, though, it's a good thing. If Liu An admits cowardice and is willing to give up the throne and bow down to the imperial court, he will be very disappointed. Because it not only cut off Liu An's own way, but also cut off his Liang Xiao's retreat.

I have to say that it is also providence that he and Liu Ling can come together. In essence, they are all unwilling to settle down, unwilling to submit to a certain person, the difference is only in the degree of difference, the motive is different.

(To be continued.) )