The materials were rudimentary, so Ruan Tang could only try to use the drainage method to collect oxygen by taking advantage of the fact that oxygen is not easily soluble in water.
If this method is successful, the purity of the oxygen collected will be relatively high.
She first filled the bamboo tube with water, then covered the bamboo tube with a smooth piece of porcelain, then quickly stood upside down in the water, and then removed the porcelain piece.
Then put a hollow straw into the inverted bamboo tube, and then blow air on the outside end of the straw to accelerate the drainage of water from the inverted bamboo tube.
After the water is completely drained, cover the mouth of the bamboo tube with a porcelain piece and take it out of the water.
Ruan Tang tested one first. After all the above operations were completed, she asked Chu Mu to hold a burning stick and slowly approach the mouth of the bamboo tube, while she gently moved the porcelain pieces away.
The originally weak flame suddenly grew larger the moment it moved closer to the porcelain piece.
Ruan Tang was overjoyed.
"Success!"
She covered the porcelain piece again, wrapped it in cloth, and tied the cloth tightly with string.
Chu Mu watched for a long time but still didn't understand Ruan Tang's series of operations.
There was obviously nothing in the bamboo tube, so why did she say it was successful?
"What kind of anger are you talking about?" Chu Mu couldn't help but approach Ruan Tang and asked curiously.
"Oxygen, we can live now because of oxygen. If this oxygen is gone, people will not be able to survive."
Chu Mu frowned, still not understanding.
"You said we are living on this...oxygen, where is it? Why can't I see it?"
Ruan Tang smiled and said: "Oxygen is invisible."
But she put the bamboo tube of oxygen she had just prepared in front of him.
Then he motioned for him to come closer, took away the porcelain piece, and put the mouth of the bamboo tube under his nose.
"Take a deep breath."
Chu Mu did as he was told, and indeed smelled a fresh fragrance from inside, a sweet smell, faint and almost inaudible.
But after taking a sip, I felt refreshed.
"You may not feel particularly strong now. If you go up a high mountain and feel dizzy, take a sip. It will definitely be comfortable."
Although Chu Mu didn't know if this was the case, he felt it was very novel when he heard Ruan Tang say it.
"How do you know these things?"
"I was a top student when I was studying, so I naturally understand." Ruan Tang said while tinkering.
"Straight A student?"
Ruan Tang was stunned. The word 'student master' was only popular in her time.
"Oh, that means people who are very capable of learning."
"So you are the best student in your Marquis Jing'an Mansion?" Chu Mu continued to ask.
He didn't know much about her past.
When I went to check on her before, I only got a rough look.
He didn't know anything about these things about her, but now he suddenly wanted to hear what she had to say.
"Is it just that all the teachers in your house teach such novel things?"
This was really the first time he had seen something like this making oxygen.
Have you ever heard of any master teaching these things?
Most of the women like them studied female training, ancient poetry and the like.
Ruan Tang was dumbfounded, how could she be taught these things by a master in the Marquis of Jing'an's Mansion?
That is knowledge that will be available thousands of years later, and the masters of the Marquis of Jing'an Mansion cannot teach this.
"I didn't learn these from the masters in the house. I learned them from some masters who wandered outside the world these years."
Ruan Tang just found a random reason, thinking not to let him doubt her origins.
But after hearing this, Chu Mu's face became a little solemn.
At first, Ruan Tang was so immersed in making oxygen that he didn't notice.
It's just that I haven't seen him speak for a long time, so I couldn't help but look up at him.
Seeing him frowning and looking at her, there were some emotions in his eyes that she couldn't understand, which seemed to be distressed and annoyed.
Then he couldn't help but ask: "Your Highness, what's wrong with you?"
"Have you suffered a lot outside these years?"
"fine."
When she came into this world, the first year was really sad because she didn't have enough to eat or keep warm.
Later, I went to a restaurant and begged the boss for a long time before he was willing to take her in to cook in the kitchen.
It’s just that there is no salary, just food and housing.
Later, she worked there for a few months and gave the boss several tricks to attract customers. The boss made money and was happy before he started paying her wages.
Slowly she saved some money, quit her job, and started her own business.
It started as a small business on the streets.
However, she combined some modern marketing strategies, and her business did very well. Slowly, as she made more money, she opened small stores, and then large stores.
I walked through it step by step. Apart from some hardships at the beginning, everything went smoothly later on.
On the contrary, when I returned to Shangjing, I suffered the most after offending him.
Ruan Tang thought of this and looked at Chu Mu with eyes that became a little angry.
But she quickly calmed down and continued tinkering with her things.
She has no way to leave him now. When the agreement between the two expires, she can leave. There is no need to settle old scores with him at this time, lest he become unhappy, create complications, and torment herself again.
Chu Mu naturally noticed something strange about her.
He could see clearly how her eyes changed from sparkling at the beginning to angry to indifferent now.
"What's wrong with you? Are you thinking of something unhappy?"
A girl wandering outside will definitely endure a lot of hardships and encounter many difficulties.
How did she get through it? How do you protect yourself so well?
He suddenly wanted to know all of this.
But Ruan Tang shook his head and had no desire to continue talking.
No matter how Chu Mu asked after that, she kept silent.
Although Chu Mu couldn't bear the anger he had been suppressing, he returned to the room with a sullen face.
Ruan Tang continued to tinker with her things in the yard, but later she became a little irritable and got distracted several times. The oxygen she had just collected was kicked down by her and wasted several times.
However, she later calmed down and did a dozen or so more. After she was sure that she was almost done, she packed up and went back to her room to rest.
She originally shared a room with Chu Mu, but for some reason, she suddenly didn't want to live with him tonight. She went to the store and opened a private room, and went to sleep on her own.
Chu Mu, who went back to his room and was sulking, didn't see Ruan Tang return to his room after waiting for a long time, so he couldn't help but come out to look for her.
But after searching around the backyard of the inn, he didn't see anyone. Just when he was so anxious that he was about to summon people to go out and look for someone.
The innkeeper saw him and said, "Mr. Chu, what's wrong? Are you looking for Mrs. Chu?"
Chu Mu and Ruan Tang lived in the same wing these days. The innkeeper thought the two were husband and wife, so they always called Mrs. Ruan Tangchu.
At first, Ruan Tang wanted to correct him, but Chu Mu stopped him, saying that they should not attract attention during this trip, and that they could save a lot of trouble by pretending to be a couple.
Ruan Tang thought he was talking nonsense, but couldn't defeat him.
In the end, I didn't bother to explain.
It's just a title.
"Well, have you seen her?"
"I saw it, I just saw it."
"where?"
"My lady just asked me to open another wing room. I must be resting in the wing room at this moment."
Upon hearing this, Chu Mu's face darkened again.
