Wing Lung five years.

Li Chengqian was 77 years old.

The current Li Chong is also a race against time.

After all, you never know if the next one to fall off is Li Chengqian.

March.

Li Chongti purified crude silicon.

And then it was this month.

It is also the use of gas reduction devices to purify pure silicon.

I thought that after obtaining this pure silicon, I would be able to get the semiconductors I wanted.

It turns out......

This pure silicon does not conduct electricity at all at room temperature.

But it doesn't matter, the temperature and pressure are all given to him.

As a result, the pure silicon becomes apparent to be able to conduct electricity again.

Think about why......

Li Chong checked the periodic table of chemical elements again.

There should be fourteen electrons found in pure silicon.

And the arrangement of electrons around the nucleus is 284.

In other words, adjacent silicon atoms share their four electrons with other silicon atoms, and as we all know, eight are the most stable!

It's no wonder why pure silicon doesn't conduct electricity.

The next thing he has to do is to mix the pure silicon with some other atoms.

This stable structure that destroys it.

The idea is such an idea, but it is not so simple to really do it.

After all......

It's not as simple as mixing two things together and you're done.

Why do you say Li Chong knows?

Because he's already done it.

……

"Hey!"

Blowing warm air from an electric fan.

Before he knew it, there were more and more gray hairs on his head.

In the past, old cows ate tender grass, which made people feel that it was not obvious, but now it is ......

Cough!

This is more or less obvious.

Even......

There is also a little bit of Li Longji's feeling.

But there is no way to do it, after all, this person is old, in fact, they are like this.

And this year......

Considering that a person's strength is weak, Li Chong also had to publish some of his research in a scientific newspaper.

Then let someone else do the research for him.

Anyway......

It's just a part of it that comes out, and others don't know what he's going to do.

Now, Li Chong gave them a problem, how to make a material, this material can only conduct electricity unilaterally, and if you change the direction, it will not work.

And then......

Just let them do it.

This circuit diagram has already been drawn.

If one day this thing is really studied, then it is estimated that it will be possible to put a set of circuit diagrams on it.

As for who will keep this circuit diagram in the future.

Li Chong stroked his beard.

Before......

He doesn't have a beard.

But for now......

I feel that he has a beard, which seems to bring out his temperament of the elderly who is pressed by pear flowers and begonias.

This circuit diagram ......

It can only be temporarily handed over to Li Tian for safekeeping.

Then instructed Li Tian that in the future, if he died, see which of the children in the clan was relatively smart and clever, and give this thing to the other party.

Li Tian saw himself Aya like this, as if he was explaining what was going on, and he also wondered if Aya knew that he was dying.

After all......

Since ancient times, there has not been a legend that when the old man is dying, he himself knows about it.

Then before he dies, he may arrange his son's family or something in advance.

Looking at himself again, Aya is indeed a lot older than a few years ago.

From time to time, he lowered his head, not knowing what he was muttering, looking like an old dragon clock.

This also made Li Tian very worried.

Tell my aunt about this.

Li Lizhi can only say......

The Emperor Taishang looks even older than him, what are you worried about.

After all the explanations......

Li Chong began to rot again.

Let's play with a pear blossom pressed begonia!

After all......

That's not much time.

One on the left, one on the right, and one below, all very well-behaved.

……

this year.

With the continuous development of commerce, it seems that some banknotes that imitate the official banknotes of the Tang Dynasty have gradually begun to appear.

That can only be said, this will not work!

You profiteers, learn this, but you learn quickly.

After Li Chong learned about this situation from Li Shize's mouth, he felt that it was time to expand the scope of use of this official banknote of the Tang Dynasty.

And then......

told Li Shi about some things about the security deposit, and about the imperial court not being able to print paper money indiscriminately.

Moreover......

This banknote must be updated from time to time with anti-counterfeiting technology, otherwise, it is easy to be imitated by people with intentions.

All I can say is......

Let's take Luoyang as a pilot first.

In fact......

This issuance of banknotes is also for the convenience of the people.

Other than that......

It may also have a certain inhibitory effect on the phenomenon of Datang copper coins mixed with other metal counterfeiting, as well as the frequent circulation of inferior money on the market.

Don't say it, Datang's copper coin fraud is really serious.

In the history books alone, Li Zhi and the Wu clan don't know how many times they have been banned, but there is still nothing they can do.

The main thing is that you can't produce copper as fast as the amount needed to trade commodities.

And now......

Datang's commodity trading is even faster than in the history books, so I don't know how many times faster, so think about it, the hidden danger of the full issuance of banknotes, compared with some people through counterfeiting to make huge profits, but it is a little bit not worth mentioning.

Of course!

There will definitely be conservatives who think that this piece of waste paper is a bit too childish to use as money?

This one......

It must be Li Shize who convinces these people.

Subsequently......

After nearly a month of repeated discussions, Li Xiang felt that it was better to issue banknotes.

Other than that......

Relevant laws and regulations must also be improved.

For example......

This article must be written into the Tang Law, that is, those who steal the seal without permission, once discovered, will confiscate the whole family.

The reason why Luoyang was chosen as a pilot.

Mainly because at the feet of the Son of Heaven, if there is any problem, you can get timely adjustment and feedback.

If something really goes wrong, you can stop it in time.

And then......

Then you can see a phenomenon. On the first day of the opening of the banknote office, some merchants went to exchange a large number of money.

So much so that the people couldn't understand it.

These businessmen aren't stupid, are they?

After all......

How can someone take their real money and exchange it for pieces of paper?

After reading the government's announcement, I realized that in the future, this piece of paper will be worth the same amount as this money.

Holding this piece of paper is equivalent to holding money.

In the future, if you want to exchange money, you can come to the 'banknote office' at any time and exchange the money back.

Dare to love is so!

Now the people will be able to understand why.

Merchants!

Those who travel from south to north cannot always carry a cart of copper coins to trade.

And this banknote is extremely convenient to carry on the body.

Especially walking back and forth between Yangzhou and Luoyang.