He asked Shi Tong to take out a bronze mirror and refracted a ray of sunlight from outside, shining on the jade porcelain tube: "This thing is only slightly transparent, so just look at it."

Zhang Xiangzhong asked: "Why don't you use glass?"

Su You asked: "Is there any glass now?"

Zhang Xiangzhong pointed to the Glass River outside the door: "Without glass, how did the river outside the city get its name?"

Su You was choked again: "Cough cough cough...I mean high-temperature glass. Chemistry often requires high-temperature heating..."

"This is the principle of extracting lead to refine mercury, and elixir and fire to bring luck..."

"Shut up! Uh, Brother Xian, I'm sorry, I'm sorry... Just listen to me first. In short, this glass needs to withstand fire before it can be used... Hey, back to learning!"

Zhang Xiangzhong finally shut up and nodded repeatedly.

Su You said: "According to the dream, water is synthesized from hydrogen and oxygen, and it is a stable substance. If it is synthesized from hydrogen and oxygen, then in terms of valence, it can only be two parts of hydrogen and one part of oxygen.

right?"

Zhang Xiangzhong nodded and said: "That's right."

Su You said: "Look, the two tubes of gas we have collected now..."

Zhang Xiangzhong made a comparison: "Two to one! If the inference is correct, this tube is hydrogen and this tube is oxygen!"

Su You said: "Now that the gas has been prepared, let's test the activity of the two gases."

Seal the hydrogen pipe under the water with your thumb, move it in front of the fire and let go. There will be a soft bang, and a flame will instantly appear and disappear in the blink of an eye.

The firelight reflected Zhang Xiangzhong's face red, and it disappeared in a flash. Zhang Xiangzhong's face was dull: "This... this is gone..."

Su You said: "Look, with such a small amount of hydrogen, the reaction is so violent, so it is a very unstable substance. Next, we will experiment with oxygen."

The oxygen test is also very simple. A thin burning wooden stick is gently put in, and a bright fire ignites instantly.

Su You said: "Brother, the experiment is finished. Now we can know that water can be electrolytically decomposed into two substances. This phenomenon can be called 'electrolysis'. After electrolysis, the water turns into hydrogen and oxygen.

The composition of the two is two to one, which is determined by their chemical valence."

Zhang Xiangzhong rubbed his hands: "The great road will last forever... The great road will last forever... This chemistry can be the foundation for me to teach and realize the Tao. It can make the world know that the natural way of heaven is destined to everything, but only mediocre people are unaware of it...

…”

After saying that, he paced back and forth in the room: "The way of heaven is mysterious and vague, and ordinary people don't know it, or they think it is delusional... But they don't know that corroding iron into rust and burning charcoal into ashes are the principles of destiny, which can be deduced and proved...

Wait, all qualities have quantities, dear brother, this heavenly secret can be verified by examining the quantity of matter, is it correct?"

At this point, Su You admired his brother's intelligence and said: "Brother has deep roots in Taoism and can see through it with just one word."

Zhang Xiangzhong looked up to the sky and laughed: "Hahaha...happy! happy!"

After finishing speaking, he slapped the table: "My career in this life should complete this list!"

Su You waved his hands repeatedly: "Brother, this... is too complicated and cannot be completed by one generation. It is better for us to take our time..."

Zhang Xiangzhong thought about it and said with a smile: "Brother Fool has lost his plan. Thanks to Brother Xian for your advice. I almost fell into the devil's path and will never recover!"

The two of them wiped away their sweat together, and Su You said: "Actually, as long as you slowly deduce it, every discovery you make will be of some use to the world, which is already very powerful."

"For example, this oxygen can support combustion, and ordinary charcoal can also burn. Can we speculate that there is oxygen in the atmosphere around us?"

"If we increase the atmospheric flow and continuously send new atmosphere into the flame, is it sending a large amount of oxygen to help combustion? Is this the reason why air blowing supports combustion?"

Zhang Xiangzhong said: "Wait a minute, according to your theory, after charcoal is burned, new substances will be generated. This substance is very stable and will no longer burn, right?"

Su You smiled and said: "This experiment is easy to do. Come on, let's do it again..."

After a while, Zhang Xiangzhong's eyes straightened again: "Xian brother, I can also make lime water turbid by blowing air. That means there is fire burning in my body? Wait, is this the true fire of Samadhi?

, moving around the body, human essence, Qi, and spirit are all refined by this fire?"

After saying that, he shook his head happily: "The Tao can be taught, but it is very Tao, and it can be named, but it is very famous. The abyss of the Tao is deep, and today we can only get a glimpse of it. How wonderful, how wonderful..."

After saying that, he jumped up and rolled up the things on the table. He laughed loudly and said: "I have bought it and left it. These all belong to my Celestial Master. The Taoist skills of the abandoned children in the city will be given to my virtuous brother. In a few days,

, there will be a good thing to send to you, brother Yu, go! Brother Yu, go!"

The boy's steps were brisk and he was already far away in a blink of an eye. Su You quickly shouted: "Brother! Don't go! If you don't explain to them, how can they believe me?"

A shiny object was thrown up from Zhang Xiangzhong's hand far away, and it drew a weird arc, passed through the iron grating on the top of the door, and landed on the table in front of Su You with a "ding-dong" sound, spinning straight around, and then

Lie down.

It was the silver Bagua sign on Zhang Xiangzhong's neck. When Su You saw the words on it, it was written on the front: "The power of the alliance is upright, the sword seals the talisman, impeaches hundreds of gods, and Yang Pingdu Gong."

Turning it over, there is a line of small words: "The twenty-seventh generation of heavenly master Zhang Xiangzhong is commanded to be good at his leisure and to protect his chastity and Xu Duanning."

Su You was startled, jumped to the door and shouted: "Brother, think twice! Even if you are a member of the Zhang family, it is a serious crime to pretend to be a heavenly master! The word "Mr." is missing from your brand! You can tell it is fake at a glance.

of!"

I saw Zhang Xiang staggering as he drifted gracefully in the distance, and then Shi Tong, who had been petrified for a long time, came back to his senses with fright, grabbed Su You by the back of his neck and lifted him into the room: "Come in quickly, Master!"

"Uh... cough cough cough cough..." Su You's face turned red and he coughed repeatedly. After standing still, he rubbed his neck with his hands: "You! How dare you bully your master and destroy your ancestors!"

Shi Tong knelt down with a thud: "Master, my disciple is impetuous and can be beaten or punished as he pleases... But, the little immortal cannot really be offended... The one just now is really the Heavenly Master of this generation, our Taoist Sect...

…”

Su You waved: "Get up and speak! Why do you keep kneeling so often!"

Shi Tong stood up and tied his hands and feet: "Master, are you... okay?"

Su You twisted his neck: "Just cover your mouth next time, don't you know that children's necks are tender?"

Shi Tong bowed repeatedly: "Yes, I won't dare to kill you next time."

Su You said: "You just said that he is really Zhang Tianshi? Why is there no word "Mr." on this brand?"

Shi Tong said: "It is true that the Celestial Masters of all dynasties have the holy gift of "Sir", but the Celestial Master of this generation, Daomiao Xuantong, was only seven years old when he first met the official family. He was too young, so the official family did not

Give the word 'sir', this... this is really unsafe!"

Su You couldn't help but laugh: "So that's it? Is it that simple?"

Seeing that Su You was not angry, Shi Tong smiled and said, "Isn't it that simple? But things are simple, but people are not."

"The Heavenly Master of this generation can walk in the third month of his life and can speak in the fifth month. When he was seven years old, he was summoned to the palace. Today, he was given the opportunity to sit and consult. His teachings were wonderful and in line with his purpose. He was specially given a purple robe and personally sprinkled it with Chen Han to control Futing.

Later, I was given a silk and gold vessel. I am thirteen this year. I am very smart and knowledgeable. I am knowledgeable in the classics and history, and I am especially good at Taoism."

Su You was dumbfounded when he heard the beginning, but didn't listen to the rest at all: "You can walk in three months, but you can talk in five months?"

Shi Tong nodded triumphantly, as if he was praising him.

Su You couldn't help but beat his chest: "If I had known, I would have spoken in March! Maybe I wouldn't have had to use this bad name!"

Shi Tong quickly comforted him: "Master, there is no need to be jealous. Although you are talented and intelligent, after all, you do not have Taoist magic. The Heavenly Master has a direct method, which is definitely different from your situation, Master. You are already powerful enough."

Su You rolled his eyes: "You know what, you know I'm jealous?!"

What I was thinking about was that I had been worrying for so long in vain, hiding it and not daring to let others know that I was too evil. As a result, the Song Dynasty was already a world where evildoers were rampant!

Feeling relieved now, he flipped through the sign: "Then is this true?"

Shi Tong flattered and smiled happily: "Of course it is true! There will be records in the future. When you and the Celestial Master discussed the elements of Tao and explored the mysteries today, you will definitely mention that it is Shi Tong and Shi Da who are accompanying you. I am here."

Cuo Da, but he is also a person in the history books."

Su You couldn't stop laughing: "Oh, you are so beautiful!"

Shi Tong picked up the rag and started to wipe the table: "This table must be enshrined. The two teachers preached on this table in the shop. Although I couldn't understand it, I just thought it was awesome! It is absolutely precious..."
Chapter completed!