Hiding in the Zhuangzi outside Tongzhou City, it was very boring, or rather, Fang Jifan's heart was anxious!

In order to prevent being detected, it is best not to go out except for a few cronies, otherwise it is difficult not to be discovered with the ability of the factory guards.

Therefore, Fang Jifan and Zhu Houzhao have almost lost contact with the outside world, and they don't know how the war is going in Annan, let alone what His Majesty's current situation is, Fang Jifan is even imagining, maybe what His Majesty wants to kill is only the crown prince, in His Majesty's heart, he Fang Jifan may be innocent, but it may not be.

If this is the case, I can go back to Beijing openly, and I can see my lovely disciples and grandchildren, and I can also eat Mr. Wen's food, what a pleasant thing it is.

With this thought in his heart, Fang Jifan was even more unbearable, and his heart was like an arrow.

Zhu Houzhao's situation was similar, he was still in high spirits two days ago, but he soon couldn't stay here anymore, but he didn't dare to take the lead, so he couldn't help but complain in front of Fang Jifan: "If there is any news in the capital, how good it would be to let the palace know as soon as possible, and I don't know what the situation in the capital is." ”

Fang Jifan listened to Zhu Houzhao's words, a thought flashed through his mind, and a wonderful feeling arose in his heart.

Then, I was ready to move!

Our successor, a man in two lifetimes, has been too lazy recently, and almost forgot about this stubble.

Now hiding here, being idle is also idle, Fang Jifan began to play the idea of getting the news as soon as possible.

So in the following days, he simply locked himself in the room and asked Liu Jin to secretly buy some things.

There are zinc rods, there are sulfuric acid, there are copper rods, and after these things are roughly prepared, the sulfuric acid is packed in jars and sealed......

Zhu Houzhao saw that Fang Jifan was closed, tossing these, he couldn't help but be curious, and couldn't help but lean up and ask, "Old Fang, what are you doing?" ”

Fang Jifan looked very serious, and just said, "Make batteries." ”

"Electric ...... The battery ......" Zhu Houzhao said incredulously: "This is obviously a jar, what does it have to do with electricity?" Even if it is related to electricity, it should be called electric cans. ”

Fang Jifan suddenly found that explaining these things to Zhu Houzhao was a waste of time, but ...... I actually think what Xiao Zhu Xiucai said is very reasonable, isn't the early battery just canned?

Fang Jifan's jaw was headed, and after a while, this rough 'electric can' was made.

This is a relatively primitive battery, which first appeared in the eighteenth century, and is known as a voltaic battery, but it is ...... In this day and age...... Uh, does it work?

Of course, it's useless.

If you use it to make electric lights, it's not impossible, but the cost is too high, and you have to eat enough to do such stupid things, but ...... Fang Jifan thought of something else......

Telegraph......

Needless to say, the purpose of the telegram is that this thing is simply an artifact for delivering messages!

Today, people pass on the news, the fastest is the carrier pigeon, but unfortunately, the safety of the carrier pigeon is not high, if you are not careful, if the carrier pigeon is the same as the prince, slipped, then you will be like his father, except for wanting to die, there is no way.

Secondly, since it is a fast horse, it can be consumed not only hugely, but also needs to establish a post station system, and it also needs to waste a lot of manpower and animal power, and it is impossible to deliver information at any time, which takes a lot of time to go back and forth along the way.

But telegram is different!

At this moment, Fang Jifan wanted to know the news, and the next moment, the other end could send it, this is an artifact.

To make a telegraph, the first thing to solve is the battery problem, the voltaic battery manufacturing is very simple, especially this is the Ming Dynasty, at this time the Ming Dynasty has taken the lead in refining zinc, this thing, in this era is called the lead, this is because the zinc of the Ming Dynasty, most of them are extracted from the silver imported into the Ming Dynasty.

With this, together with sulfuric acid and copper, in general, a simple voltaic battery can be made, so that the problem of the battery is solved, and the telegraph is even simpler, just find a wooden board, a enameled wire, a long nail, a short nail, a copper sheet, and an armature.

Fang Jifan first took the plank and laid it flat, nailed it into the long nail, and waited for the nail to expose the wooden board for two centimeters before resting, and then fixed the short nail on the wooden board, connected them with armature, and then on this long nail, wound the copper wire, this era has not yet had the skill of copper wire drawing, but to manufacture, as long as you are willing to spend the cost, it is not too difficult, the ancestors have been able to draw wire on the metal very early, so there is a braided gold wire and silver wire, this copper wire, Fang Jifan spent a busy time, and then connected the two poles of the battery. Telegraph', this thing, a big boycott of it.

Then, the copper wire was erected, and there was no insulating rubber in this era, so people painted the wire, and when the paint dried, it was completed.

Cutting down more than a dozen trees, Fang Jifan pulled the line from one end to the other, and at the other end was a utility room, Zhu Houzhao followed Fang Jifan's ass from beginning to end, watching all this curiously.

Then, Fang Jifan began to teach Zhu Houzhao code, he first found a book, as the mother book, after teaching Zhu Houzhao word by word, Zhu Houzhao learned new things, has always been very fast, and soon understood.

It's just that...... What the hell is Lao Fang doing? Zhu Houzhao is still a little incomprehensible.

Next, let Zhu Houzhao be in another room a hundred zhang away, where there was a transmitter at the same time.

Zhu Houzhao looked at this 'vulgar' machine, it was really rough, and any thing in the palace was much finer than it, Zhu Houzhao was very unimpressed with this!

But he knew he would soon find out, so he sat down!

Suddenly, there was a clicking sound on the transceiver.

Zhu Houzhao exclaimed.

Hell yes.

He was so frightened that he jumped to his feet.

The electromagnet that surrounds the copper wire is just ...... It was a shock, and it made a sound.

Behind him, Liu Jin was eating fried soybeans very calmly, looking disapproving.

It seems that apart from hunger, there is nothing in the world that can intimidate Liu Jin.

Zhu Houzhao shouted with a little horror: "Liu Banban, Liu Banban, did you hear it, the clicking sound, I heard it, this thing will move by itself." ”

"Your Highness, the slave and maid heard it and saw it move." Liu Jin's voice was very flat and calm.

"It's scary!" Zhu Houzhao approached the transceiver curiously.

Liu Jin grabbed a bean, stuffed it into his mouth, and looked at it with a relaxed face.

The next moment, I saw that the electromagnet vibrated again, this time it was the third sound, click......

Zhu Hou took care of it, and after the electromagnet vibrate, it struck on the short nail on the wooden board, thus making a crashing sound.

Zhu Houzhao's eyes widened and said, "It's moving again." ”

"The slave has seen it!" Liu Jin said calmly: "The slave maid remembers that Du Wei asked His Highness to take a note. ”

Zhu Houzhao suddenly slapped his forehead: "Yes, I patronized the hell, I forgot about this." ”

So I hurriedly picked up the pen and wrote down a two, a three.

Then, the transceiver vibrated constantly.

Zhu Houzhao wrote down more than a dozen sets of numbers, each group of four numbers.

Zhu Houzhao finally got used to it, for example, he calmed down a lot, and said, "That...... What about the female parent? ”

Liu Jin took out the mother book.

This is one of the most common "Spring and Autumn".

Holding the mother book, Zhu Houzhao began to translate the first set of numbers according to Fang Jifan's method.

Two, three, ninety, four.

Zhu Houzhao took the number and read the words in his mouth: "Page 23, column 9, word 4...... Well? This is the word 'temple'. ”

Zhu Houzhao seemed to be surprised to discover something new, and was happy: "Haha, it's a little interesting." ”

Then he translates the second and third words.

Eventually, the words were strung together.

"Your Highness, are you hungry? Speed...... Return! Zhu Houzhao wrote the number of translated words on the paper.

Zhu Houzhao's eyebrows suddenly fluttered.

patted the case and said with a smile: "Haha, it's interesting, you see, the old man asked if the palace was hungry......

As he spoke, he took the note he had translated and ran back to Zhuangzi out of breath.

In Zhuangzi, Fang Jifan was sitting in front of the transceiver with a serious face, looking very serious.

I heard Zhu Houzhao shouting: "Old Fang, old Fang......"

Fang Jifan had a feeling of a dog, and said Okay, let's communicate with the code.

"Your Highness......"

Zhu Houzhao said excitedly: "This palace is here to tell you, this palace is hungry, what are we going to eat at noon?" ”

Fang Jifan's face fell: "Your Highness, you should return to me over there." ”

Zhu Houzhao was a little dizzy, what's the matter?

He remembered it again, and slapped his forehead again: "Ah, forget, forget, you wait, this palace will go back to you." ”

Then he ran back to his hut out of breath and sat down in a hurry!

On this transceiver, there is a small key of copper sheet, connected to the battery of the pottery urn, he first took out the mother, first found the word he wanted to say, turned into a number, seven, three, six, five.

Then, he pressed the copper button seven times in a row, and with each press, the current passed through the transceiver, and then it made a clicking sound.

He replied that the palace was hungry, and we were going to eat something at noon.

He wanted to say, what are we going to eat? It's a pity that in the mother book "Spring and Autumn", although I found my words, I didn't find them, and the word 'what' naturally didn't exist.

This transceiver, thanks to the mother book "Spring and Autumn", is relatively advanced, so even the communication has to become elegant.

Fortunately, the number of words in the Book of Poetry is not much, and if you use the Book of Poetry as the mother book, it will be even more advanced.

After sending out the code, Zhu Houzhao began to wait patiently, he was anxious, his eyes widened, seeing that there was no news from this transceiver, he couldn't wait to eat it, and even wanted to follow this line to find Fang Jifan and urge him.

Finally, Fang Jifan responded.

"Your Highness, the minister thinks that we have no food at noon."

Zhu Houzhao was stunned, there is no food, what do you mean, there is no rice in the tank?

He replied, "Why?" ”

Fang Jifan responded word by word: "Gonggong Xiao is at the door of the minister." ”

"......" Zhu Houzhao ...... Scared to pee.