Later human historians used fire to become the dividing line between humans and animals. This statement can be said to be very prohibited, because fire not only brings warmth and light to mankind, but also brings hope for civilization.

You should know that after the birth of human beings, millions of years of life were filled with fear of the night. Because humans lost their vision and strength to resist in the night, they could be hunted by predators at any time, so this fear of the night was almost engraved in human genes.

The use of fire brings light to humans, dispels cold and darkness, and at the same time drives away predators in the night, giving humans a huge sense of security at night. This is also the first step in the birth of civilization.

It can be said that since humans tamed the flame, they have been expanding the scope of use of fire, from the initial heating, lighting, to later smelting, distillation, etc., all of which are involved in flames.

Especially the lighting function has been used from ancient times to the present, and there has never been anything else to replace flames. At most, the fuel has changed from the original wood and weeds to the current lamp oil and candles, but their essence after burning is the same.

But it is different now. With the light of the stone pillars in the square in front of the Imperial City, this also means that humans have escaped the limitations of flames and started to use a more advanced energy source. This energy is like flames and has infinite possibilities in the future.

The people of Ming Dynasty in the square may not understand the meaning of the lights when they light up, but this does not prevent them from being shocked. After all, the lights in front of them are too bright. Even if the lights on the city are all over the Lantern Festival, it is impossible to illuminate the streets like daytime.

But when the lights light up, many people even felt very dazzling and couldn't open their eyes for a while. In fact, this is normal. After all, the brightness of the average electric light is hundreds of times that of the candle, so when you adapt to the dimness of the candle, you will feel dazzling when you suddenly see the lights.

Although Ulube and others who were sitting on the tree were far away, when the lights were on, the center of the square was shining in daylight, like a miniature sun, which made people dare not look directly at it.

"This... is this electricity? It's really as bright as lightning!" Wuluber couldn't help but murmur when he looked at the lights in the square. Now he was even a little glad that he was abandoned by his father, otherwise he might not have seen the scene in front of him in his life.

Brother Guan and others next to them also looked proud. Although they did not participate in the research on electricity, as members of the academy, they were also proud of the academy's achievements.

After a brief shock and calm in the square, an incomparable amazement broke out soon. Everyone was talking about the bright lights, and some students from the academy began to popularize their knowledge on electricity to the people around them.

Of course, most people have no idea about electricity, and they cannot understand the electromagnetic effect, and they cannot understand the difference between lightning and the electricity in front of them. So in the end, they became the gentleman of the academy to collect the lightning from the sky and place it in the lightning to illuminate the sky, which also made many people who know how to do it laugh and cry.

But this is also normal. After all, no matter in which era, popular science is a very difficult thing. Sometimes countless people work hard to popularize science to adults, but they can't stand a rumor. Even the knowledge of popular science is misinterpreted and becomes another way.

Now that electricity has just begun to be applied, the popularization of electricity knowledge has just begun. Therefore, if you want the people to understand the knowledge of electricity, it may take several years or even decades. Hundreds of years of promotion and popularization are not urgent.

The people were admiring the bright world brought by the electric lights in the square outside the gate of the imperial city. Inside the palace, Zhu Yunyu led all civil and military officials, and were amazed at the bright Fengtian Palace.

Fengtian Hall is the main hall of the three main halls of the imperial city and one of the most important buildings in the imperial city. It is a place where the emperor holds major ceremonies and receives congratulations from all officials. The entire hall is built very huge, but this also brings great problems to lighting, especially in the early morning and evening, even if countless candles are lit in the hall, it still looks very dark.

But now the hall is as bright as daylight, and two rows of electric lights are placed on the two rows of pillars in the hall. Many old ministers with dizzy eyes feel that the Fengtian Hall is so bright for the first time.

Zhu Yunyu was also very satisfied with the electric lights. Although he had heard Li Jie describe the electric lights before, it was a false hearing after all, and it was far less true than witnessing it with his own eyes. He even secretly decided to transform the entire palace in the future and try to let the imperial city use the electric lights to light them as soon as possible.

Speaking of which, although using a steam engine to generate electricity consumes a lot of fuel, if the entire imperial city is really used with electric lights, it will save a lot of money for the imperial city. Because with electric lights, you don’t need to light candles anymore. Don’t underestimate the cost of candles. Especially the candles in the imperial city are specially made. The cost of candles alone is quite large in a year, which is much more expensive than the fuel consumed by the steam engine.

In addition, candles are not only low in brightness, but also unsafe. They can easily cause fires if you are not careful. Especially in places like Imperial City, many buildings are made of wooden buildings, and every fire will cause serious consequences. Most of the fires are caused by improper use of fire at night.

Although electric lights also have hidden dangers that cause fires, as long as the inspection circuit is checked and the safety hazards are eliminated, it is at least much safer than candles. After all, electric lights do not need to be open fire.

Li Jie was also in the hall. When the lights were on, he felt more emotion in his heart. The cost of electricity is still a bit high now, and it is not easy to promote it, so he could only use the Imperial City as a pilot project. Now only the Imperial City can bear this cost.

However, as long as the Imperial City takes the lead in using electricity, the power system will definitely be continuously improved in the future. Moreover, if there is something to do with the top, the lower part will be even more successful, and the power promotion will be smoother in the future.

Thinking of this, Li Jie couldn't help but feel a little fascinated. Electricity has appeared, and more and more electrical appliances may appear in the future, and even computers and mobile phones may appear one after another.

Of course, Li Jie himself must not be able to see him. After all, both computers and mobile phones are too high-end. They may not be able to overcome these difficulties for decades or even hundreds of years. This also makes Li Jie a little regretful, but this is also impossible. After all, life is short, and a person's life in history is actually just a short moment, and it will inevitably leave many regrets.

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