"Is the earth like football? What about the stars, Master? Is it something embedded in the surface of a football? ”

Seeing that the master really knew the answer, Li Tai immediately became excited.

Leng Feng shook his head: "Of course not, in fact, the stars we see are the same existence as the sun, but they are too far away from us, so it seems that there is only a little." In addition, the stars and other things do not operate on the heavenly dome, and their true volume may be countless times larger than our earth.

In fact, our earth revolves around the sun. Li Ke, you go outside and get a few more footballs. ”

After instructing Li Ke to go outside and get a lot of footballs, Leng Feng used the football to form a model of the solar system and explained to the three brothers what the solar system is like and what the universe is like.

Listening to Leng Feng's explanation, the three brothers were shocked and incomplete.

In their impression, the master is omniscient, but what the master talks about is too much....

It's horrible!

It turns out that human beings are not the spirits of all things, but just an insignificant speck of dust in the vast and boundless universe.

After talking a lot, Leng Feng sat on Li Tai's chair and drank tea, waiting for the three brothers to recover from the shock.

After a long time, Li Tai was the first to come back to his senses and stretched out two fingers: "Master, I have two questions. ”

Leng Feng nodded.

"First, since we all live on the same ball, won't the bottom fall down?"

This question is well asked, Leng Feng clapped his hands: "This is also what I am going to teach you in the future, this is the gravity brought to us by the earth under our feet." Gravity pulls anything on the surface of any sphere, like a circular magnet that adsorbs iron sand. In the future, if you want to study airplanes, you will have to find a way to confront this force. ”

Leng Feng's explanation was very vivid, and Li Tai's doubts were immediately resolved.

Immediately afterward, he asked, "Second question, Master, if you say so, we can't fly out of the sky to confirm your statement!" ”

Leng Feng laughed: "Actually, the way to prove this thing is very simple, isn't there an idiom called going in the opposite direction!" The north and south are particularly cold polar regions, and the north and south directions are counted. When the steam engine is developed, we can build a very large ship and follow the coastline all the way west. I believe in Master, the ship will depart from Lingnan and will definitely be able to return to Suzhou and Hangzhou in the end. ”

"You can still do that!"

Li Tai's eyes widened, since the master has a way to seal it, then what the master said must be correct.

Li Chengqian and Li Ke glanced at each other, and they didn't know what to say, today, they seemed to have gotten something from Master that everyone didn't know.... Heavenly Machine?

Li Tai grabbed the paper in his hand, and suddenly had an idea to confirm it.

Build a big ship powered by a steam engine? Just wait until the rubber tree grows up, okay?

Thinking of this, Li Tai suddenly wanted to go to Lingnan to see how those rubber trees grew.

Because Chang'an did not meet the conditions for the growth of rubber trees, the seeds of those rubber trees were sent to Feng Ang in Lingnan, and Feng Ang was specially asked to treat them as his life.

I don't know how long it will take for those rubber trees to grow!

may have said it unconsciously, and Li Tai heard the master's answer: "Why should it take five or six years!" ”

Five or six years is not a long time, but in fact, it is not a short time.

"Okay, the three of you pack up, and we'll leave for Hanzhong in the next two days."

Saying that they want to clean up, in fact, there are not many things that need to be cleaned up, the three brothers only need to bring their own guards, and all the things they need on the road, those guards will arrange them properly.

In fact, Leng Feng still wanted to take his son out to play at first, but considering that Li Yuanchang was likely to jump off the wall in a hurry, he just sat down.

Early the next morning, the imperial court issued a notice of "Heavenly Patrol Hunting Guannai Road in the Imperial Dynasty of the Emperor of the Kingdom of Xi".

This notice seemed particularly strange to the courtiers!

On the side of Guannai Road, there are no major events, and even if there is, the one who goes there should not be an idler like the Duke of Xi Guo! There are so many capable people in the DPRK and China, why do you want to send the Duke of Xi Guo?

However, the order was issued by the emperor, and the people below did not dare to say anything.

The Dragon's Tooth Army has replenished the gunpowder weapons of base eight in the Thunderbolt Division!

Originally, Zhang Zhongqing was going to give Leng Fengji dozens of gunpowder weapons to his body, but under the cry of the Wuli Sima who was in charge of the lightning division, he could only become the base eight.

But for the other two percent, Zhang Zhongqing replaced them with his gasoline weapons.

Like gunpowder weapons, Zhang Zhongqing also made gasoline into incendiary bombs, explosive bombs, and incendiary arrows.

The wooden shaft of the arrow, which was covered with a layer of wax, was full of gasoline and some icing sugar and small pieces of wood, and if it was lit and shot, it would be enough to set a tall building on fire with just one arrow.

The neatly equipped Dragon Tooth Army left Chang'an and marched towards Hanzhong.

Along the road, businessmen and pedestrians avoided one after another, even some state capitals, and only after verifying Leng Feng's identity did they dare to open the city gate.

I can't help it! Although there were only a thousand of them, they were well-armoured, and all of them looked like fierce soldiers. What's more, when will an army of more than a thousand people be able to assemble an eight-bull crossbow?

That big killing weapon, looking at it from a distance, feels terrifying.

Although the city was required to be stationed and rested, in the eyes of the soldiers defending the city, these guys were more like they were here to attack the city.

For the Eight Bull Crossbow, Leng Feng is also helpless, the incendiary arrow made by Zhang Zhongqing is indeed powerful, but there are also drawbacks.

It is because it is not an arrow of a bow, but requires an eight-ox crossbow to shoot out.

Before leaving, Leng Feng also took a lot of effort to get out of the Ordnance Supervisor for an eight-bull crossbow, Wu Tian's face was painful, and he really thought that Leng Feng was doing something bad with the eight-bull crossbow!

This time it was not a war with the army, so Leng Feng did not concentrate on hurrying, and his requirements for his subordinates were not high, and the entire army was advancing in the mountains and rivers. Even in order to go to Taibai Mountain to have a look, Leng Feng and the others took a long detour after passing Shouyang Mountain.

The world's famous mountains are probably the same, and when you hear rumors, you think they are beautiful and magnificent, but when you look at them on the spot, you will find that there are not many interesting places.

Climbing the mountain is a necessary activity, and climbing the mountain during the day consumed all Li Tai's physical strength, so much so that as soon as he returned to the camp, he fell asleep.

"Hahahaha, Lao Tzu must circle the earth in the future."

Listening to the sleeping Li Tai talking in his sleep, Li Chengqian and Li Ke both laughed.