In the security room, the voices of people are boiling, and the dense crowd is full of people, and the situation is even grander than yesterday. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Chen Yu and Zhu Shou came here on the fifth watch, and now they have been crowded for almost an hour, and they have not seen the edge of the platform.

The size of this person today is twice as large as yesterday, which makes the already small security booth more crowded and suffocating!

The two inquired, it turned out that it was because yesterday during the day, the "scale pond" structure at the head of the Qiantang Chen case had been written into a chapter by the imperial history, and everyone who understood knew that Chen Yu won yesterday, not only won, but also wonderful.

Of course, this is not enough, after Chen Yu broke all the riddles by the West Lake last night, his reputation spread in the surrounding counties, it turned out that today there are not only the citizens of Qiantang County, but also the Confucian students and ladies of Renhe, Haiyan and other counties come to see the young Chen.

Of course, there are also those ** men, who came here early this morning to change their bets, those who won the first place in the house yesterday have more or less bet on Chen Yu today, of course, this is also a speculative mentality, the main bet is still on Fang Xun, after all, Fang Xun has the initiative.

There are even some young ladies who moved stools and sat down on the edge of the platform on the fourth watch day to meet the regret of not seeing Chen Yu yesterday.

The sun was three poles, and the hour was about to pass, only to see Li Xianling, the landlord and Fan Dianshi coming to the platform with difficulty under the support of the small officials, they were all sweating profusely, and they must have been squeezed very lightly.

In the "Staying Guest House", Fang Xun took the palm-sized glass bottle from Fang Xiaomei's hand, shook the folding fan in his hand, and slowly walked towards the platform with a winning smile on his face.

Everywhere he passed, no one dared to obstruct him, not because he was handsome, not because he had a big face, not because others knew him, but because he had a group of "tooth man organizations" in his hands that made the people fearful!

Chen Yu can't do it over there, he squeezed for a long time to get halfway, and now his whole body is already drenched in sweat, if he goes on like this, he will definitely lose today's game without a fight.

On the platform, the Li County Order, the landlord's book, and Fan Dianshi's history all shook the folding fan vigorously, and the landlord muttered impatiently: "This Chen Yu has a really big face, it was late yesterday, and today is the same again, will he not be the official...... The county lord put it in his eyes? ”

"There are so many people, and the official has a soap official who is crowded to open the road, so isn't it normal for Chen Yu to come late? Let's watch the show here with peace of mind, don't rush! Li Xianling said with a smile.

At this moment, Zhu Shou in the crowd shouted: "Chen Case Chief can't get in, I'm bothering you to make a way!" ”

This voice is more effective than anything else, and the people in front of him all consciously gave up an alley, but everyone's eyes were very vigilant, and as soon as Chen Yu passed, he immediately closed his original position, so as not to take up his place by the people behind him.

Finally got to the stage, Chen Yu was already sweating profusely, and wiped the sweat droplets on his face with his sleeve cage casually, and he couldn't bother to pick up a few strands of black hair on his cheeks.

It's just that this appearance looks like a kind of athletic beauty, and I don't know how many girls in the front row have harmed their hearts.

Those ladies muttered excitedly to their surrounding partners, it was really not in vain that they got up so early, this Chen case leader is really handsome!

"Come on, Chen Yu!" I don't know which girl in the audience shouted, her voice went down, she simply shouted in the empty valley, and after a while, the echo was everywhere, "Chen Yu, come on...... Chen Yu, you are so handsome...... Chen Yu: I love you...... Chen Yu, I want to force and rape you......"

The shouts from the audience made Chen Yu stumble, and he quickly wiped the cold sweat on his face!

Li Wu, Li Ziqi and Zhu Shou all stood side by side by the wall, seeing Chen Yu's embarrassing appearance, Li Ziqi couldn't help but smile.

This smile was like a ripple in the clear spring, which made Chen Yu's heart ripple, he had stayed with this chick for so long, and he had never seen him smile, and Chen Yu also politely leaked what he thought was the purest smile.

The smile...... It's obscene! Li Wu made a conclusion to Chen Yu very seriously.

Li Ziqi hurriedly smiled and glared at Chen Yu fiercely.

Some people are happy and some are worried, such as Fang Xun, he is very unhappy in his heart now, okay, Chen Yu, there will be a time when you cry for a while!

In fact, Chen Yu didn't take this as a thing at all, and he couldn't say how relaxed he was at the moment.

At this time, Fan Dianshi saw that everyone was already waiting impatiently, and he hurriedly sang: "According to the agreement, the second day of the competition will begin, and Fang Xunfang will be the first to write the test questions. ”

Fang Xun restrained the resentful thoughts in his heart, and tried to leak the maximum side, he smiled kindly: "Chen Tingyu, if you solve this problem, my Fang Xun is willing to bow down and offer five hundred taels of pure silver, but if you can't solve it, then it will be regarded as your loss, how about it?" ”

"Okay!" Chen Yu replied very happily, I was afraid that Fang Xun would add any conditions, such a fair competition, I was sorry for myself if I didn't agree, and the worst thing was that I couldn't answer, but if I answered, it would be five hundred taels of silver!

Isn't it just a reputation? He came with the mentality of losing both games, and he also knew the purpose of Fang Xun's words, I am afraid that he can't even solve this problem, and he doesn't want to draw with himself, so he made this condition, but this inevitably falls to the lower level.

Seeing that Chen Yu answered so happily, Fang Xun relieved his heart, he sneered in his heart, and then took out something from his arms.

His move attracted the attention of everyone present, including Chen Yu, who wanted to see what kind of topic this Fang Xun would come up with to make things difficult for Chen Yu.

I saw that he took out a very fine square glass bottle, but the bottle contained a piece of gold, which shone in the refraction of the sun.

A closer look reveals that the volume of the gold is clearly larger than the diameter of the mouth of the bottle, in other words, the gold was placed in the glass bottle when it was fired.

"A year ago, I met a Persian alchemist who gave me a difficult problem that I still can't solve."

"This glass bottle contains a piece of gold of high purity, the daughter of the king of Persia is very fond of the glass bottle outside, but because there is a piece of gold in it, so he found a capable person in his country to try to remove it, but so far it is not solved, so the warlock looked for a look, created a similar bottle, came to my Central Plains to solve. I wonder if Chen Yu can answer the question for him? ”

"How is this possible?" As soon as Fang Xun finished speaking, Fan Dianshi on the side was surprised: "It is difficult to melt a piece of gold normally, not to mention such harsh conditions, the people of this state have a lot of things, how good is this gold inside?" In my opinion, wouldn't it be wonderful to smash the glass bottle and take its gold? ”

Fan Dianshi's thoughts are also the thoughts of everyone present, because this is impossible for anyone!

So Chen Yu must have lost this game.

In the "Staying Guest House", Fang Xiaomei was lying on the table near the window on the second floor, he was meticulously admiring Chen Yu not far away, and at the same time felt a little self-blame in his heart.

A pair of jade hands were drawing indiscriminately on the table, even she didn't know that she had written many words "Chen Tingyu".

Chen Yu on the platform wall has not yet answered, his serious thinking appearance at the moment is really handsome.

What is the end of the day? Boat in the middle stream; What is the day today? Gotta be in the same boat as the prince. Shame is good,

No shame. The heart is a few annoyed and endless, knowing the prince. The mountains have trees and branches, and the heart is pleasing to the king.

On the other side, I saw Li Ziqi muttering indignantly in the audience: "This is obviously bullying people, and I want others to complete what I can't accomplish?" This man's heart is not pure! ”

"If Chen Yu solves this problem, I don't know how many girls will be aroused, fortunately, this problem can't be solved, otherwise Chen Yu will be surrounded by some warblers and Yanyan in the future, how can I go out with him?" Zhu Shou said.

"There it is! I can really figure it out! Chen Yu's eyes lit up, his voice was not loud, but it was like thunder on the ground, and everyone present was stunned.

The pair of jade hands in the "Staying in the Guest House" stopped suddenly, and the whole person looked at Chen Yu with incredible eyes, and unconsciously shouted: "Really? ”

Then he laughed self-deprecatingly, no one was around, who is this for!

"What do you say? Know if you can't destroy this glass bottle! Fang Xun said incrediblely.

"It won't be destroyed, and I'll give you a bottle in perfect condition, but it may take me a little time to prepare the dissolving solution, I wonder if you can wait for me for a while?" Chen Yu said.

"Wait! Even if I wait until tomorrow, I will wait, I want to see how Chen Tingyu does your tricks! Li Xianling was interested, brushed his beard and stood up and said loudly: "Heroes are young people, God bless me Qiantang!" ”

At first, Chen Yu was really stumped by this topic, and after thinking about it for a while, he suddenly found that he was thinking in the wrong direction, his instinctive idea was to solve it with physical methods, but he ignored the chemical direction.

This is a very easy problem to solve in the future, as long as the gold is melted, how to melt the gold? As long as you have studied junior high school chemistry, you will know that there is a very corrosive thing "aqua regia".

"Aqua regia" is a three-to-one ratio of concentrated hydrochloric acid and concentrated nitric acid, which dissolves gold very quickly!

As for this hydrochloric acid, it can be obtained by mixing salt with alum and firing.

It's just that nitric acid may be a little more difficult, but it doesn't matter, Chen Yu happened to have read Xu Guangqi's famous book "Heavenly Creations", which has already mentioned how to refine strong water.

"Take five catties of alum and five catties of saltpeter. Fry the alum and fold it by about one-fifth. The two flavors are studied together and listened to and used. The second time to make a pot with iron......"

Xu Guangqi's principle of making "strong water" is to decompose green alum to produce sulfuric acid, which reacts with saltpeter to produce volatile nitric acid, and then extracts nitric acid through distillation.

After thinking about this layer, Chen Yu told Fan Dianshi the materials he needed.

That Fan Dianshi nodded hurriedly, now as long as Chen Yu doesn't want the sun in the sky, whatever you do, he Fan Xi will find it.

Nonsense, such a rare scene, who doesn't want to see it? Besides, this is all bragging capital in the future!

Fan Dianshi was very active, and after a while, he found all the materials that Chen Yu wanted, and also found a few senior alchemists.

Chen Yu was very satisfied, he told the warlocks one by one what he wanted to refine, there was no way, there was a specialization in the art industry, and the refining time was very long, but the people on the scene all waited patiently, and their eyes never left the platform.

By dusk, those alchemists had finally refined the two raw materials that Chen Yu wanted.

"Okay, Brother Fang, you can give me your bottle now, this thing needs to be used on the spot!" Chen Yu said to Fang Xun.

This king water is extremely unstable and easy to volatilize**,**poisonous, so Chen Yu must move faster!

"Pretend to be a ghost, don't break my bottle!" Fang Xun was very reluctant to give the bottle in his hand to Chen Yu, he never thought that Chen Yu would be really difficult to answer, this contrast is difficult for an arrogant person like him to accept!

"I'll accompany you for a thousand taels if it's broken, bring it quickly!" Chen Yu snatched the glass bottle from Fang Xun's hand.

Then he began to carefully drip the solution into the bottle, and when it was almost full, he quickly closed the bottle.

During this process, from beginning to end, he was wearing a mask!

One moment or another, a miracle happened, and the huge gold in the glass bottle was dissolving little by little, and the speed of dissolution could be seen clearly with the naked eye.

Those in the front row observed it most clearly, and they all grew their mouths in astonishment, as if they had seen a ghost.

When the gold was dissolved and could come out of the bottle, he hurriedly took the "aqua regia" and the gold out, and then secretly put the gold into his arms......