Soon, when the division of kindergartens and schools was in full swing, the telegraph was finally improved!

When Zhao Feng saw the first Morse code typed, he nodded with great satisfaction, isn't this the first telegraph in later generations?

Immediately, in order to fulfill his promise to everyone, Zhao Feng called all the ministers to the blacksmith shop.

"Brother Meng De, let you see the artifact of this telegraph now!" Zhao Feng smiled slightly.

"So I'll see!" Cao Cao smiled slightly.

"Well, let's introduce it to you by Ma Jun, and I, a layman, won't overstep my bounds!" Zhao Feng said with a smile. If Zhao Feng was allowed to tell the story, Zhao Feng might be better than Ma Jun, but Zhao Feng left this opportunity to Ma Jun, and deliberately said that he was a layman, the meaning is obvious, that is, he wants to completely push this credit to the blacksmith shop!

"Yes!" Ma Jun naturally knew what Zhao Feng meant, but he couldn't refute it, so he could only nod and explain it carefully to everyone, "Everyone, please see, this is the telegraph, there are a total of thirty buttons, corresponding to twenty-six Chinese pinyin letters, and four tones!" ……”

Ma Jun explained in great detail, and everyone listened very carefully.

"Hey, Master Ma, what is this? What's the use? Guo Jia suddenly found a wire lying on the ground, and it seemed that this thing connected the two telegraph machines!

"This is a long wire, which is used to transmit electricity!" Ma Jun explained with a smile.

"What is electricity?" Guo Jia continued to ask the doubts in everyone's hearts.

"Electricity is a natural phenomenon that refers to the phenomenon caused by the movement of electrons. Lightning in nature is a phenomenon of electricity. Electricity is a property of the repulsive force and attraction that arises between subatomic particles like electrons and protons. It is one of the four basic interactions in nature. There are two phenomena of electron motion: we say that an atom that lacks electrons is positively charged, and an atom that has excess electrons is said to be negatively charged. Ma Jun directly told everyone what Zhao Feng gave to them before, "I can't explain the electrons, protons, atoms, and positive and negative charges in it to you intuitively, so I can only draw a sketch for you and talk about it briefly." ”

As he spoke, Ma Jun drew on the paper. Explain these terms in a simple and understandable way, although there is a microscope now, but it is still in the most rudimentary stage, and you can see the existence of some microorganisms, as for the substances in the cell, you can barely see clearly, but you can't figure out what these onlookers look like in the world!

"However, in the field we are now studying, electricity is not just a natural phenomenon, but a scientific explanation: electricity is a general term, a physical phenomenon produced by a stationary or moving electric charge." Ma Jun continued, "As for what electricity can do, I can tell you, I don't know the specifics of this, but what I know is that electricity is a very magical and powerful energy, and now, we only use electricity to transmit information, as for the future, all the energy around us can basically be replaced by electricity!" ”

Everyone was amazed, they didn't expect that electricity, which didn't sound like anything peculiar, would have such a big effect!

"Let me explain today's experiment." Ma Jun ignored everyone's surprise, but said directly, "The next thing we have to do is to use these two telegraph machines to transmit information!" Of course, we will have to experiment in different rooms, and this telegraph will be left here, while the other will be sent to the craftsman's workshop, which is not far away, but it is more than a thousand steps! You can stay here and watch this telegraph, or you can follow the other telegraph to the Craftsman's Workshop and watch the other telegraph in action! ”

Everyone nodded, some chose to stay here, others chose to follow another telegraph to the artisan's workshop.

"Your Majesty, it's ready, do you want to start the experiment?" After being busy for a while, Ma Jun asked Zhao Feng for instructions.

"Well, let's get started!" Zhao Feng nodded.

Ma Jun nodded, and then shouted at the person who was next to the telegraph: "Start the experiment!" ”

Of course, after the start of the test, everyone was in order to come up, because every letter was marked, so looking at the operation of the trainer, everyone understood at a glance, the trainer only typed four words at the beginning: shi two sounds, yan four sounds, kai one sound, shi three sounds.

Everyone nodded, not knowing if they could receive the message from there. Soon, however, the telegraph made a noise, and it began to "print", with several long and short lines on a small piece of paper.

"What is this?" Cao Cao couldn't help but ask.

"This is kind of code, that is, we have to correspond to this table to see what is written in this word!" As he spoke, Zhao Feng pointed to a table next to the telegraph, the content on this form was not understood by everyone before, but now after listening to Zhao Feng's explanation, and then comparing it with the long and short lines on the note, everyone understood.

There are only four long and short lines on the top of the note, corresponding to four buttons: hao three sounds

Everyone suddenly realized now that this should indeed be the news from over there, but after all, it was a bit unbelievable, so everyone still didn't believe it, so Cao Cao spoke: "If you are not here, I am Cao Cao, and you are the first to take refuge in me."

The trainer nodded, and quickly typed out the sentence. On the other hand, he also quickly replied to the news: No, I didn't take refuge in Meng De at the beginning, if you want to say that at the beginning, it was Chen Gong!

This is what Cao Cao said on purpose, he just wanted to make sure that Xun Yu was not on the other side! And when he saw this sentence, he understood that Xun Yu was on the telegraph on the other side, and no one else knew about this matter except for a few people in Cao Cao's camp!

"Brother Meng De believes it now, right?" Zhao Feng smiled slightly, unfazed by Cao Cao's words just now.

"Believed, believed!" Cao Cao nodded, "This telegraph is amazing!" ”

"Hmm!" Zhao Feng nodded, "But now due to the restrictions of wires, it is still difficult to transmit long-distance messages, and your task now is to set up long-distance wires and strive to bring telegraphs to every state and county as soon as possible!" ”

"Yes! The ministers must do their best! Ma Jun assured.

It's still one chapter at noon, and three more in the evening

(End of chapter)