The short video shows the ancient times, and the emperors cried with envy!

Chapter 114 The usefulness of the compass!Zhang Fei: Military advisor, are you crazy?
At the end of the Eastern Han Dynasty, Shu.

Zhuge Liang looked at the scene on the sky and seemed to have fallen into deep thought.

The structure of this compass can be called simple, but the hidden military value in it made Zhuge Liang stunned for a while.

"compass?"

"If we get this thing, the Shu Han army will be even more powerful!"

Zhuge Liang was shocked.

The land of Shuhan has been plagued by miasma since ancient times. Although they occupy some favorable geographical advantages, if there is any conflict, Shuhan will not take advantage.

But now, if this compass can be developed...

Zhuge Liang's mind kept thinking, thinking about the structure of the compass, and at this moment he fell into the same blind spot as everyone else in the Mohist family.

Why can this Sinan be ground into such a fine needle?
Furthermore, with only a thin needle left, wouldn’t the accuracy of this thing be affected?

However, just after this surprise arose, a spiritual light swept down from Zhuge Liang's heavenly spirit in an instant!

"A magnetic needle is difficult to sharpen, but an iron needle is much easier!"

Zhuge Liang instantly thought of a series of descriptions about the "magnetic technique" in his mind. Previous people had discovered that after a long period of contact between iron pieces and meteorite iron, the properties of ordinary iron pieces would be changed by the meteorite iron.

Now it seems that it can be used in the manufacture of compasses?
The smile on Zhuge Liang's face was undisguised, making Zhang Fei and others beside him look confused.

"Second brother, what's going on, military advisor?"

"Could it be that you were stimulated by something?"

When Guan Yu heard this, he also frowned slightly. When he was about to speak, Zhuge Liang had already taken the lead.

"Godsend opportunity!"

"My lord, I have a plan that will prevent the Shu Han army from getting lost!"

As soon as these words came out, everyone present was stunned.

what?
Zhang Fei was even slower to react and muttered to himself for a while.

"Military advisor, aren't you crazy?"

Then he quickly looked at Zhuge Liang, and the serious look in his eyes gradually became stronger.

"Military advisor, are you telling the truth?"

"There is a lot of miasma in Xichuan. Since we moved here, many soldiers have been lost in the miasma mountains!"

"Could it be that the military advisor wants to borrow that from Sinan?"

Although Zhang Fei's reaction was a little slow, he was not a fool, and he was getting to the point right now.

Seeing that everyone was looking at him curiously, Zhuge Liang gave it up first.

"No, no, no!"

"Isn't it already mentioned on the sky screen? Compass! If we can make this thing, our army will truly have all the advantages in the land of Shuhan!"

……

【The usefulness of compass! 】

[Commonly used in navigation, geodesy, travel and military, etc.! 】

As the sky screen changed, the voice-over sounded again.

"In ancient navigation, one of the major constraints on opening sea routes was the inability to determine one's own position on the sea!"

"But the smart ancients had already solved this problem based on the movement of the stars and the direction of the compass. Since the advent of the compass, the history of human navigation has begun to usher in an era of leap forward."

"The advent of the compass has greatly improved the stability and safety of navigation. It has also made great contributions to the opening of world shipping routes and ushered in the age of discovery in world geography!"

As soon as these words came out, countless eyes came under the sky.

First Emperor Ying Zheng: The opportunity has come for the Great Qin Cavalry to become famous overseas. Meng Tian, ​​I will leave the supervision of the Compass to you!
Liu Che, Emperor Wu of the Han Dynasty: If there is such a thing, the great reputation of the Han Dynasty will be powerful all over the world!
General Li Guang: Is there such a good thing that can show the way?If I had told you earlier, I wouldn’t have gotten lost!
Yongle Emperor Zhu Yuanzhang: When Zheng He comes back, be sure to bring it with you next time you go to sea!

……

"The emergence of the compass has facilitated human travel and promoted human communication and collaboration!" "At the same time, it has also played a great guiding role in the take-off and integration of earth civilization. It can even be called the cornerstone of the age of navigation."

"In addition, because the accuracy of the compass is much higher than that of Sinan, it also plays a huge role in promoting the field of measurement!"

"It can be said that the emergence of the compass is also an important transition that cannot be ignored in the progress of human civilization. In particular, the existence of the earth's magnetic field can be deduced with the help of the principle of the compass, and it has laid the foundation for modern navigation!"

"As expected of my ancestors, did they invent such a popular thing? 》

"It's hard to imagine what kind of genius the person who invented Si Nan was! 》

"All the navigation we use today is inseparable from the earth's magnetic field. Speaking of which, the invention of the compass is secondary. The understanding of the earth's magnetic field is the real treasure! 》

"what?"

At this moment, I don’t know how many scholars under the sky made such a sigh.

what?
In their eyes, the invention of the compass was clearly a major event that affected the world, but in the eyes of future generations, was there something more important?
A big man, in the Weiyang Palace.

Liu Cheteng, Emperor Wu of the Han Dynasty, stood up immediately. He couldn't understand most of the words on the sky screen, but he knew it.

The importance of this Si Nan was far more exaggerated than he had imagined before.

"navigation?"

"Wei Qing, what do you think this is?"

Liu Che's eyes were full of surprise, and Wei Qing on the side was not much better.

Si Nan knew that there was one outside Weiyang Palace, but the compass was a bit weird.

What's more, the magnetic field mentioned later on the canopy has attracted all of Wei Qing's attention.

Based on the information on the sky screen, Wei Qing seemed to have a vague guess.

Simon's strange properties are inseparable from this magnetic field. As for navigation...

Wei Qing could only interpret it literally.

"Your Majesty, even the humble ministers don't know!"

"Regardless of what Tianmu mentioned before, this so-called navigation may mean guiding navigation? It should be something more profound than a compass!"

"In my opinion, those big steel ships in later generations should have navigation systems! Otherwise, how can we sail safely on the vast ocean?"

Wei Qing's words were very much in line with Liu Che's wishes, so he directly followed Wei Qing's words at this moment.

"Could it be that navigation means using a compass combined with celestial phenomena to guide a ship's navigation?"

"I have heard about the art of astrological deduction, but how can these two serve as a guide? If there is no direction but no distance, sooner or later we will get lost in the vast sea!"

However, neither of them are obviously good at mathematics. As soon as this question came up, they were dumbfounded.

Another time and space.

The Taishi of the Eastern Han Dynasty ordered Zhang Heng to look at the information on the sky screen, and the countless confusions in his heart were instantly explained!
It turns out that Si Nan can actually conduct mutual deductions with celestial phenomena?
navigation?

If the laws of the stars remain unchanged, and with Sinan as a guide, we can actually draw a sea route map!

Yes, there were maps of future generations appearing on the sky screen before.

this moment.

Zhang Heng suddenly felt a pang of regret in his heart. He didn't even print the map.

Endless regret swept through him, and Zhang Heng had no time to think about anything else at this moment, so he started to deduce on the ground.

Ming dynasty.

Hongwu Emperor Zhu Yuanzhang looked at those barrages, and besides being surprised, he was more curious.

"The four great inventions?"

"This compass alone can be called a creation of heaven. We are curious, what else can be called it?"

(End of this chapter)