The invention of electric light is not a very simple matter, but fortunately, Li Chong is the one who stands on the shoulders of giants after all.

With the knowledge he had learned over the years, he soon guessed the conditions that he had to meet in order to become a wick for an electric lamp.

For example, first, the calorific value must be large, and second, the melting point must be high.

In the process of experiments, it is precisely to prove this point, ordinary metals can easily be burned off.

Even, it was too late to make the lights shine.

But......

Although the experiment failed, there was still experience.

Li Zhong tried all the gold, silver, copper and iron, and modified different parameters, and then carried out repeated experiments, to be honest.

Li Zhong finally knew why Edison hired someone to do experiments on him.

Because......

This experiment is indeed tedious and boring.

Li Zhong then wrote three papers, one on generators, that is, magnetism, and one on electromagnetism, that is, electromagnets.

Then the last article is the selection of wick materials, so after the three articles were written, they were handed over to the Academy of Sciences in Chang'an, that is, the vice president of Li Chunfeng, to supervise the implementation.

Of course, here in Liaodong, Li Chong also asked people to send the article to Li Youmu's hands.

Then, let Li Youmu give it to Kang Xinggan to take a look, and leave a message for the other party, if Kang Xinggan is interested in this, you can consider it and try to study this topic.

Of course!

It is estimated that the experimental conditions in Liaodong may not be as good as those in Chang'an.

At least......

This kind of glass-making technology is still not available in Liaodong at present.

The main thing is that I didn't need it before.

After reading Li Chong's letter, Kang Xinggan was very happy that his steam turbine was used by the dean so quickly.

Merely......

He still wants to research better aircraft engines, so it's not that he doesn't like this topic of the dean, but he doesn't have time.

After Li Zhong read the other party's reply, he could only hug Xincheng and say, "He is really a single-minded person."

But it doesn't matter, anyway......

There are already enough people on Chang'an's side to experiment on him.

He gives the direction of the experiment and then asks the people below to do it.

The first is a three-month alloy test.

Even so, the results were not as good as they could have been.

But......

In a vacuum, it is true that it lasts much longer than a non-vacuum.

It's just that there are so many that I can't say that there is any practicality.

It's like using wire to vacuum a light bulb. At most, it only lasted a few dozen seconds, so it didn't work to make it.

Not to mention, it also has to meet a certain brightness requirement.

Since there are so few metal materials to choose from, and, after many experiments, it has been found that there is no way to change the properties of the metal much by making these things into alloys.

Li Chong began to change his thinking.

Li Zhong began to suspect that the materials that Edison and his team were experimenting with could not be just metal.

Even......

They also experiment with other things, such as charcoal.

….

Now the question is how to make charcoal into filaments.

Then place it inside the bulb.

This question is left to Li Chunfeng and the people below to think about.

But in fact, the ancients already had an answer to this question.

For example, the famous song "The Charcoal Seller", why he sells not firewood, but charcoal, and how did his charcoal come from.

Soon......

Then their experiments made a major breakthrough.

If the carbon fiber bulb is made of bamboo silk, then this carbon fiber bulb can not only maintain a satisfactory brightness, but also greatly improve the burning time, and it will last for a month before extinguishing.

All I can say is......

Li Chunfeng himself was dumbfounded.

Every seven days, he rewrote a letter to Lee, reporting on the results of his research.

And the craftsmen of Chang'an, too, looked at the soft light emitted by this bulb, and couldn't help but kneel down directly.

One is the worship of mysterious and unknown powers, and the other is that this thing really shocked them a little.

This is simply, this is simply something that only immortals can do!

Especially at night, seeing this light that is different from a candle, if it is not for the manifestation of immortals, it is not normal!

Fortunately, Li Chunfeng asked them to keep it secret, so that it would not spread immediately.

After the experiment, Li Chong asked Li Chunfeng to send the finished product immediately.

That same evening.

Li Chong entered the palace to share his latest research results with Li Er.

Empress Eldest Sun looked at the light bulb, and her mouth was so wide that she couldn't close it anymore.

Li Er was a little dizzy for a moment, but fortunately, Li Chong stepped forward in time to help him.

"This is the electric age you are talking about?"

In fact, Li Er was a little too excited, so much so that he had high blood pressure, and he was a little dizzy and unsteady all of a sudden.

Li Zhong waited for him to recover a little, and then crossed his hands and said proudly: "This is just a stepping stone, it can be said to be the prelude."

Empress Eldest Sun also looked at these two people.

At this moment, she felt that these two monarchs and ministers were the best only when they were together.

But......

How did she not hear anything about the Electric Age?

"What is the Electric Age?"

So, she asked curiously.

Li Chong explained to her: "Even if every household can use such electric lights, in the future, even at night, Datang will not turn off the lights, and the night is as dark as day."

Empress Changsun could only say that she had no way to imagine that picture.

Li Chong also saw that she didn't seem to be very smart, so he said, "Even in the future, I won't light candles."

[In view of the general environment,

After Li Er was excited, he now slowly reacted, looked at the generator, and said, "That's different or do you want to burn firewood?"

Li Chong: "That's why I said that this is just a prelude, and if you want to make full use of electricity, you need to build a large hydroelectric or thermal power station, although the electricity bill will definitely cost money. However, electricity should save more money than candles."

"For example, a candle costs at least 20 yuan in Datang, and the candle can only burn for one night at most, and once the efficiency of this electricity is improved, these 20 yuan may be enough to use electric lights to light for ten nights, or even twenty nights."

"That's what the real electric age should look like. Moreover, electricity can be transmitted over long distances, and the travel rate of electricity is very fast, and in the blink of an eye, it can travel 600,000 miles.

Both of them were shocked by Li Chong's words.

Is this really something that can exist in the world?

He couldn't have just opened his mouth, did he?

Pendulum rotten 11