In the seven years of Yongxing, Dahua officially entered the era of electrification.

To be precise, the Jiangnan area has stepped into electrification.

The cities of Guangzhou and Wuhan are still in the steam age.

As for the countryside, it is still in the farming era.

The Great China Empire is a country that spans several eras.

Following this trend, when the Jiangnan region enters the information age, there will still be remote areas that continue to be farming civilization.

In this year, many electrical appliances were invented.

There are simply electric lights, electric fans, and electric bells. The more complicated ones are refrigerators and rice cookers.

Of course, whether it is simple or complex, they are all rich people, in order to make a fresh picture. There is still a long way to go until the cost of these products comes down.

In life, there are few electrical products, and the impact on society is not particularly large.

The biggest impact is still in the industry.

Rotation can generate electricity, and electricity can naturally provide power to rotate.

The steam engine is too large and heavy to be suitable for many machines.

As a result, those researchers are studying how to transform those machines to use electricity to drive them, and some results have been achieved so far.

Various forms of electric motors are constantly emerging, improving the efficiency of those machines, and making industrial development a few steps faster.

Of course, this is just the beginning. The role of electricity is much greater than that of steam, and there are countless places where electricity will be used in the future.

Royal palace.

Several scientific researchers sent a phone to Wu Changqing, and several princes and princesses also came to join in the fun.

Because Wu Changqing told them that this thing talked to people a few kilometers away, and several princes didn't quite believe it.

Wu Changqing picked up the phone and said, "Can you hear it?"

"Chen Jiang Shoude returned to your Majesty, I can hear it."

A voice came out of the microphone, which frightened the concubines.

If it weren't for Wu Changqing here, they might all be frightened.

In a black iron lump, there was a human voice. Could it be that it became a spirit?

The children's worldview has not yet taken shape, and they are not so shocked, but more curious.

They looked at the phone, seeming to want to explore the mystery in it.

"Ten salutes."

Wu Changqing said.

"Yes."

Soon, ten cannons rang from Jiangning Daying.

It's amazing to be able to talk to people several kilometers away in an instant.

Chen Yuyan said, this is simply incredible.

The other concubines no longer doubted, believing that there is such a magical thing in this world.

"It's so fun, ten more shots."

Wu Ji yelled at the phone, which made Jiang Shoude very embarrassed.

He guessed that it was a certain prince who was speaking. It is not good not to listen to Ling, but it is not good to listen to Ling. After all, Wu Changqing is still there.

"Then shoot ten more shots."

Wu Changqing smiled and said, this is a historic moment, and he is in a good mood.

Afterwards, there was a salute from Jiangnan Daying again, and Wu Kun and others were excited, noisy and noisy, so happy.

This successful call is of great significance.

Since then, Dahua opened the door to remote instant calls.

The telegram does not count. The telegram needs to be sent, received, and translated. The process is still very troublesome.

Moreover, the telegram can only transmit text, not sound.

With the telephone, the central government has stronger control over the localities, and there will be no occasional situations where the local ministers do not listen to orders.

In the previous feudal dynasties, the central government's control over the remote areas was actually very weak. The emperor's orders might not be listened to by the frontier ministers, and the emperor did not even have a good way to do it.

Those ministers can find many excuses. For example, when facing a foreign invasion, the emperor asks the local minister to declare war on a foreign country, and the local minister can directly throw the order away, saying, "The Lord is so wise, it is impossible to pass such a silly will, it must be False edict'.

In the face of the emperor’s edict of King Qin, we can take the example of the princes in the beacon play, saying that this may be because the emperor was trying to make his concubine happy.

Then, he respected himself and watched the show.

This is a typical example of weak local control, and there are many similar things in history.

When there is no phone, local officials can indeed use similar excuses to resist orders.

It won’t work if you have a phone, you can’t say that the emperor’s voice is on the phone.

Moreover, even if the local ministers disobeyed orders, Wu Changqing, who was in the central government, could know about it at the first time and respond to it.

The role of the telephone is far more than that, its biggest role is still in the livelihood of the people, it solves the problem of long-distance instant communication, and makes communication between people more convenient.

Of course, the current phone is not so magical.

Today's phones can only make one-to-one calls, that is, one wire can only connect to two phones at both ends. If there are more phones connected, it is impossible to accurately call the person you want to talk to.

To solve this problem, you have to rely on switches.

The switch can receive and recognize the dialer's signal, and then automatically transmit it to the designated receiver.

In this way, one telephone line can transmit multiple calls at the same time.

Only by dialing can you accurately call the person you are looking for.

Only in this way can the phone enter thousands of households.

Otherwise, there is not so much money to make wires.

Dahua Exchange is also in the process of intensive research, and it is expected that there will be results soon.

With the help of the system, Dahua has no technical bottleneck.

The speed of its technological development is as maddeningly as it has been.

Dahua Daily reported in detail Dahua’s first successful call, including the process, content, and participants.

These will all need to be included in the history books in the future to be remembered.

However, it is a bit far-fetched to say that this is Dahua's first successful call. Researchers have already succeeded countless times when researching and debugging, otherwise they would not be taken to the palace to offer treasures.

However, the moment when they succeeded in such an experiment is not memorable.

This commemorative moment should still be left to the emperor.

Ever since, the call between Wu Changqing and Jiangning Daying was defined as Dahua's first successful call.

Many ordinary people are confused about this call, or even a little disbelief.

How could a person talk with someone seven or eight kilometers away? Whoever has such a loud voice, wouldn't it be a monster?

Those who read the book and understand science believe it.

However, when the phone came out, these people were quite surprised.

This technology is really amazing.

Before they changed it, they didn't even dare to think that there could still be this kind of artifact in the world.

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