Then there is no more

It has never been easy to achieve results in scientific research.

Even though Shen Yi and Bian Jingyu have summed up the law of salt production from brine, there is still a long way to go from finding the law to realizing the feasibility of drying salt.In fact, they still want to study in depth and carefully, but the tools and experimental conditions at hand are too rough.

Bian Jingyu said: "Although cooling can produce salt, it is difficult to control the temperature. The cost is higher than the cost of boiling salt."

When they do experiments, they use ice cubes if they want to use ice cubes, and heat them over water if they want to heat them over water.But if you really use this method to make salt, if you want to get a yield of hundreds or thousands of catties at a time, the supply of ice cubes and charcoal for heating will not be enough, so it is better to cook the salt directly!If you place your hope on natural cooling, such as the temperature difference between day and night, there are too many restrictions. For thousands of years, only one salt pond in Meining County has emerged.

If cooling is not enough, we can only study in the direction of evaporating water vapor.

"The restrictions are still very big..." Bian Jingyu imitated Shen Yi, and wrote down on paper with a pen while talking, "Unless the local sun is very strong, the water in the salt water can be evaporated quickly, otherwise the salt water can be dried once. The cycle is too long, and although the cost is low, the efficiency of salt production is also low.”

"Not only must the sun be bright and the temperature high, but it must also be a climate with little rain." Shen Yi noticed that there was a gray-black mark on the tip of Bian Jingyu's nose, which was the ashes that were accidentally stained on the fire.He couldn't help but look a few more times, and really wanted to reach out to help Bian Jingyu wipe off the dust, but he held back and didn't do it.

If the local rainfall is very sufficient, then the water in the salt pan will evaporate almost completely, and it will all be in vain after a rain.

Building rain sheds for Yantian?Since it is sun-dried salt, the salt field is naturally open-air. Once it is covered by a shed, there is no wind or sun, and the evaporation of water vapor will be slow.Or, don’t build a shed if it doesn’t rain, and build a shed when it rains?The efficiency of sun-dried salt is not high and the cycle is long, so unless the amount of salt produced each time is much higher than the amount of salt that can be obtained by boiling salt for the same time, sun-dried salt cannot replace boiled salt. After all, salt is a necessity in life, and the annual consumption is there.That being the case, Yantian must be big, how could it have the energy to build a shed for it!

Therefore, if you want to dry salt efficiently, you must consider the local climate conditions.

Junior high school knowledge tells us that there are three ways to speed up the evaporation of water, one is to increase the temperature, the other is to increase the surface area of ​​the liquid, and the third is to speed up the air flow above the liquid.Although these three rules are so simple, Shen Yi and Bian Jingyu have no information at hand. They are walking on a road that no one has gone before. They only ignorantly figured out the necessary conditions for drying salt. Built in hot and dry places with little rain.

"My uncle has a fishing ground in Chonghai Bay..." Bian Jingyu thought for a while and said.

Bian Jingyu has read many local chronicles, and has a certain understanding of the climate, production, customs, and anecdotes of various places.Chonghai Bay barely meets the conditions of dry heat and little rain.Bian Jingyu felt that the tip of her nose was itchy, so she stretched out her hand to rub it, and this rubbed away the black ash.

Shen Yi couldn't help but look at Bian Jingyu's face.If Bian Jingyu wasn't afraid of being abrupt, he really wanted to wipe off the dust for him.

"If you have no objection, I'll talk to my uncle and let him try it in Chonghai Bay." Bian Jingyu said again.

The salt field is different from the previous corn.The seeds of the corn have been obtained, even if they do not bear fruit in the end, the cost of planting corn is very low, and the Anpingbo Mansion and the Shen family can afford it, but once the fruit is planted, the benefits they can reap are amazing!Bian Jingyu, as a member of the Bian family, even if she wanted to promote her uncle, she couldn't rashly involve him.However, the research cost of Yantian was too high, and the Bian family and the Shen family could no longer afford it.Moreover, although they have produced certain results, these results cannot be directly used for sun-drying salt, and they need to find out more applicable rules in actual application, and the consumption here will be even greater!Bian Jingyu and Shen Yi are actually not very confident.

The Lu family has money and land, and the Lu family uncle has a group of skilled craftsmen.Bian Jingyu could only ask her uncle for help.

Shen Yi said hesitantly: "What if it doesn't work out in the end?" If it doesn't work out, wouldn't Uncle Lu's family lose a lot of money for nothing?

"What if it happens?" Bian Jingyu asked back.If it works, this is a great contribution to being able to confer a title as a prince!

"You can't say that, after all, it's not a small sum..." Shen Yi said worriedly.As far as he knew, although the Lu family had a big business, they were not salt merchants.If the Lu family wants to try to sell salt, not to mention the cost of research, all parties must first manage and straighten out the relationship. Otherwise, if they are regarded as trying to sell private salt, the entire Lu family will have to pay for it!The profit in the salt is too great, and the money that the Lu family manages up and down will not be a small amount.

"I can hand over all the materials we have researched and sorted out to my uncle." Bian Jingyu has no psychological pressure. "Whether this matter is done or not depends on my uncle himself. He is a businessman. He often tells me that he wants to If you want to do big business, you must be mentally prepared to lose money.”

Uncle Lu has always been protective.It's nothing to protect his shortcomings, the key is that he is still rich.

A rich man who protects his weaknesses... His ability to act is very terrifying.

The Lu family does not do any seafood business at all, so why is there a fishing ground in Chonghai Bay?The reason is simple, because the old lady of the Lu family likes to eat seafood.In order to let the old lady in the family eat the best and highest quality seafood, Uncle Lu's family directly built a large fishing ground in Chonghai Bend.

Bian Jingyu is also the "short" who is protected by the uncle of the Lu family.

Shen Yi was really afraid that the method she proposed to dry the salt in the salt fields would cause Uncle Lu's money to lose money!But Bian Jingyu became more and more calm, and comforted Shen Yi, saying: "My uncle is very discerning. If he thinks it is not feasible, he will naturally not do it. We just provide him with an idea."

That's how things settled down.Bian Jingyu planned to talk to her uncle about the sun-dried salt in person after returning to the capital.

With the pressure not to let Uncle Lu's lose money, Shen Yi's research motivation is stronger, and even in her sleep, there are neat salt fields.Shen Yi thought it was a good omen, but she didn't know that the picture overlooking the Yantian from a high altitude was also one of the garbage messages he had ever received.In addition to Yantian, there is also Jingyu's brother Jingyu whose nose is stained with black ash in his sleep.Shen Yi rubbed her hands, and the black ash on the tip of Bian Jingyu's nose was wiped off.

When Shen Yi woke up, thinking of the picture of Bian Jingyu holding her nose and looking at her, the satisfaction in her chest almost overflowed.

When Nan Lu was approaching, Shen Yi had a new idea.Since he got "Hungry No", a shed has been set up in the yard of his home to make a kitchen.Although Shen Yi doesn't care about the kitchen, when passing by the yard, she occasionally checks whether the hygiene in the kitchen has met the standards he said.He had seen cooks make tofu, grind the beans into a paste and cook in a large pot. After adding brine, the soy milk would condense into lumps.Shen Yi was inspired by this.

"If we really build a salt field and only look at the weather, the efficiency will be too low." Shen Yi said enthusiastically, "Can we find something that is not expensive and easy to get, just like brine Similarly, adding it to the salt pan can increase the efficiency of salt production.”

Although making tofu and drying salt are two different things, I have to say that Shen Yi's new research topic is well chosen.

The two young masters were busy doing research along the way, so the journey didn't seem so far away.After disembarking from the boat, they traveled quickly in a carriage for two days. They were so upset that their hearts, liver, spleen, stomach, and kidneys were about to be spit out of their mouths, and finally arrived at Tong'en County, which was ruled by Yao County Magistrate.The customs here are different from those in the capital, Bian Jingyu and Shen Yi's clothes are different from those of the pedestrians on the street.Bian Jingyu couldn't help looking at pedestrians, and pedestrians couldn't help looking at them.

Tong'en County didn't often have outsiders coming here before, but since County Magistrate Yao led the people to cooperate with Wanjin Trading Company, the people in the county have become much less wary of outsiders.Among those eyes looking at Bian Jingyu and Shen Yi, most of them were curious eyes, and they were not malicious.

Shen Yi came here once before and led Bian Jingyu directly to the county government office.

"When I came last time, there was only a row of small dilapidated houses here. I didn't expect it to be so well built now." Maybe it was because she would see her relatives soon, Shen Yi walked quickly with the wind under her feet, "This is my house. My father must be in the place where my father and my eldest brother give lectures to them!"

Nanlu is far away from the capital, and Shen Yi couldn't confirm the exact date of her arrival, so she didn't ask her father and elder brother to pick him up.

Bian Jingyu was suddenly a little nervous.

The two walked towards the row of houses, and gradually they could hear the sound of reading.The school was originally built by Yao county magistrate, and there were not many students coming.Later, the local people started to live a better life by relying on the medicine business, and they became more and more convinced of the county magistrate Yao, so they rushed to send their children to the school dormitory.Some people have a plan in their hearts, not only sending their children here, but also brazen themselves.

Therefore, there are children and adults in the dormitory.

Shen Si is responsible for enlightening children, and Shen Deyuan is responsible for giving lectures to adults, teaching them to speak Mandarin, etc.

There was an old man squatting in the shadows outside the school, seeing Shen Yi and Bian Jingyu approaching from a distance, the old man felt that Shen Yi looked very familiar.When Shen Yi approached, the old man suddenly shouted into the room: "Mr. Shen, your youngest son is here! Your youngest son in the capital is here!"

The sound of reading in the room fell silent for a while, and soon a middle-aged man walked out of it.

Shen Deyuan is wearing local costumes.Bian Jingyu's tears fell instantly.He didn't want to cry, but he couldn't hold back the tears.The Shen family suffered so much, Bian Jingyu was often worried that Shen Deyuan would not be doing well outside, and now seeing him in good spirits, he finally felt relieved.

The old man rubbed his head, did he remember wrongly, could it be that the one who shed tears is Mr. Shen's son?

Bian Jingyu respects Shen Deyuan very much.This kind of respect is not revealed at ordinary times, but it has always been deeply buried in my heart.

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My little brother Bian’s unknown psychology: Thanks to my great-grandfather for marrying my great-grandmother, thanking my grandfather for marrying my grandmother, thanking them for finally giving birth to my father, thanking my father for helping Uncle Shen so that I can know Uncle Shen.In short, thanks to my eighteen generations of ancestors!