Dressed As An Ancient Heroine Control Group

two days ago

Although saltpeter can make ice, Qin Fang heard Dr. Li mentioned before that saltpeter is a blind medicine, which can improve the medicinal properties, and saltpeter can make firecrackers, so Qin Fang is more cautious about saltpeter. No matter who they are, they are always very strict about medicine. Even if the medicine is not taken, everyone will be worried.

Therefore, after finding out that saltpeter can make ice, and Qin Fang and Yang Haiyan intend to tell the court about this method, they naturally have to face this method with a more serious attitude.

Qin Fang said: "Although saltpeter can make ice, I don't know whether the ice produced can be used. For example, sulfur, Dr. Li said, sulfur is poisonous even if it is inhaled. Excessive inhalation is not acceptable. Therefore, in the face of saltpeter, we Also pay attention. I'm going to the Longevity Taoist Temple in Beast Mountain now and ask Dr. Li."

When Yang Haiyan heard this, her heart became hot, and it was great that Qin Fang could think of the problem. She used to read novels, and after knowing that saltpeter can make ice, she also curiously checked it online.

She has seen information on the Internet that saltpeter is poisonous, although it is a small poison, but if you overdose, your health will not be good. Therefore, saltpeter ice-making is all water-proof, but here, she is a woman who accidentally discovered that saltpeter can make ice when she was washing her hands. Therefore, in today's experiment, she did not use water to make ice, nor did she tell Qin Fang.

Yang Haiyan's original plan was that after the experiment of making ice with saltpeter was successful, he would vaguely remind Qin Fang to ask Dr. Li if the ice made from saltpeter was edible. As a doctor, Dr. Li naturally knew that saltpeter was poisonous, so he would tell Qin Fang that saltpeter could not be used directly to make ice, and it was toxic. After that, they will definitely ponder how to make saltpeter ice without poison.

But she didn't expect that, before she brought it up, Qin Fang thought about it himself. Yang Haiyan said: "Then you go, it's better to be careful, I have never noticed this."

Being praised by her, Qin Fang was obviously happy. He grinned and showed his smiling teeth, but soon, he pursed his lips again: "Then I'll go."

It was already dinner time now, and Qin Fang didn't have dinner either, so he went to Beast Mountain immediately. When we arrived at the Beast Mountain, it was already dark, and the lights in the Taoist temple were brightly lit. As long as you could see the place where the Taoist temple was, you would know that there were people there.

As soon as Qin Fang arrived at the Taoist temple, he looked for Doctor Li: "Doctor Li, I have something I want to ask you, so I can take a step to talk."

Seeing that Qin Fang was so cautious, Dr. Li followed Qin Fang to the secret place: "I don't dare to ask for advice, I don't know what the general wants to ask? But it has something to do with medicine?" This medicine can only be asked by the general.

Qin Fang said: "It is indeed medicine, and it is related to saltpeter. Today, Zhuojing invited the master to use sulfur and saltpeter to make firecrackers. I thought that during the Chinese New Year and festivals, firecrackers could be set off in the house. However, she found out by coincidence. With another use of saltpeter, saltpeter can make ice."

Dr. Li was taken aback: "What?" Because he was so surprised, his voice involuntarily amplified. Ice is not only a luxury for ordinary people, it is also a luxury among aristocratic families. Many people have a certain amount of ice, not because the family can't buy it, but because they don't have so much ice for them to sell.

But if saltpeter is used to make ice, the price of ice may plummet.

Qin Fang added: "This matter is no trivial matter. I am going to tell the court, so I also ask Dr. Li to keep it secret." Before the court has made this public, it would be really bad if it was revealed.

Dr. Li said, "Don't worry, General, the people know what they know. The General wanted to ask if the saltpeter was made and whether it could be used, right or not?"

Qin Fang said: "That's true. You said before that saltpeter is medicine, so I don't know if I can use this medicine to make ice or not."

Doctor Li asked, "Can the general tell me how saltpeter makes ice?"

This is not a problem, so Qin Fang told the truth: "Put the saltpeter directly into the water, wait for half a day, and the water will freeze. However, the saltpeter should not be too small, the water should not be too much, and there should be a certain amount. Saltpeter can reduce the amount of water. The temperature of the water becomes lower and lower for a long time, and it freezes." This is probably the case, and Qin Fang didn't understand the specifics.

Doctor Li said without hesitation: "If this is the case, then the saltpeter itself is also in the ice. The saltpeter is poisonous, and it directly contacts with water, and then turns into ice. It can be seen that the toxicity of the saltpeter is also in it, so this ice cannot be used. Yes. To make so much water into ice, there is also a lot of saltpeter, and a little bit of saltpeter can be ignored. Certainly not."

Qin Fang thought for a while: "What do you mean, as long as the ice and the saltpeter are not in direct contact, and the toxicity of the saltpeter is not dissolved in the ice, then the ice can be used?"

Dr. Li thought about it for a while, and it seemed to be the truth: "But you have to check it before you know it."

Qin Fang said: "It's simple, you come back with me, I have a solution."

Doctor Li: "Yes."

Then, the two returned to the General's Mansion.

It was already night, and as soon as Qin Fang arrived in the house, he asked someone to fetch a large basin and a bowl. Put water in the big basin, put water in the bowl, then put the bowl into the big basin, and then put the saltpeter in the big basin.

When Yang Haiyan learned that, she couldn't help but ask, "Master, what are you doing?"

Qin Fang explained: "Doctor Li said that saltpeter is poisonous, and saltpeter is directly placed in water to make ice, which is estimated to have the toxicity of saltpeter and cannot be used. So I think, if saltpeter and water are separated, then the water If it turns into ice, is it no longer poisonous?"

Yang Haiyan was stunned, looking at Qin Fang with incredible eyes. Speaking of which, because of the relationship between time travel and reading books, her heart is more or less with the superiority of some modern people. Especially when she wears a book and learns about the plot, she knows who she can associate with. For example, when she was at the border, she went to Mrs. Shizi's shop to sell soap recipes. But only now did she truly appreciate the wisdom of the ancients. It is no wonder that saltpeter ice was discovered in ancient times.

The achievements of modern people are perfected on the basis of ancient people, but the achievements of ancient people have no information to check, they all figured out by themselves. For example, the ancients were precocious and enlightened, but at that age, what are modern people doing? Basically the children are still being pampered. For example, Yang Haiyan herself was also very fond of her when her great-wife picked her up.

But now, she finally understands that she has always looked down on the ancients. There was an uncomfortable feeling in her heart. For the first time, she realized that her mentality and thoughts were somewhat wrong.

Seeing Yang Haiyan looking at him, his eyes were straight, Qin Fang was a little scared, he asked cautiously, "Yanyan, what's the matter with you?"

Yang Haiyan walked up to him, watched silently for a while, and then opened her arms to embrace Qin Fang: "Xianggong, you are so smart."

Qin Fang was bored, what's going on? Although he is happy to be praised by his daughter-in-law, he is even happier to be hugged by his daughter-in-law. However, he was a little uneasy. "Yan... Yanyan, don't scare me."

Yang Haiyan couldn't help laughing when she saw how nervous he was. She stared at Qin Fang's face with big eyes, grabbed his hand with both hands, and said seriously: "Xiang Gong, I really think you are very smart. Look, Dr. Li said that saltpeter is poisonous and cannot be used to make ice directly. You will think of making ice with saltpeter, how can you be so smart."

Qin Fang weighed the meaning of her words, and looked at her appearance, not trying to coax him to be happy, but praising him seriously. So, Qin Fang snorted, concealing his inner joy, and said solemnly: "Yanyan has passed the award, Yanyan is so smart, if the husband is too stupid, how can he be worthy of Yanyan?"

Yang Haiyan: "..." I didn't know what to say for a while, this person is poisonous.

It takes half a day to make ice with saltpeter, about two hours. After two hours, it was already midnight, and the saltpeter was frozen. Qin Fang asked someone to call Dr. Li, who was returning to the house to wait for the result. Dr. Li was shocked by the news of saltpeter making ice, so he also waited and did not sleep. Now Qin Fang sent someone to pass the news, and he went immediately. . Although it is inappropriate to go to the inner courtyard, but the general is there, it is fine.

When Dr. Li entered the room and saw the ice in the basin and bowl, he was really shocked again. As General Qin said, saltpeter can really make ice.

Qin Fang said: "Doctor Li, look, I put the saltpeter in the basin, so the ice in the basin is together with the saltpeter, but the ice in the bowl is not stained with saltpeter, because there is a bowl across, you see Look, these two kinds of ice are poisoned with saltpeter?"

Dr. Li said, "Okay, I'll check it out."

Dr. Li took some ice from the basin and the bowl. At present, the ice in the basin and bowl has just formed, and it is not very strong, so it is convenient to take the ice. Fifteen hours later, Dr. Li told Qin Fang about the verification result: "General, the ice in the bowl is non-toxic and can be eaten, but the ice in the plate is not good. The ice in the plate is slightly poisonous."

Qin Fang was overjoyed: "Well."

Not only Qin Fang is happy, but Doctor Li is also happy: "Unfortunately, saltpeter mines are not available to ordinary people, and there are not many saltpeter mines. Otherwise, if this ice-making method is popularized, ordinary people will be able to use ice."

Saltpeter ice-making can reduce the cost of ice-making, but saltpeter is hard to find. In ancient times, ordinary ores were not easy to find. Or the gunpowder is already flying all over the sky.

Qin Fang said: "Indeed."

Listening to their conversation, Yang Haiyan remembered the matter of boiling salt with sea water. Salt can be boiled in sea water, so can saltpeter be boiled in ice water? Saltpeter, like salt, is a crystal. If saltpeter can be boiled in ice water, then saltpeter can be reused. In this way, ordinary people can use ice every year as long as they save some saltpeter.