He was betrayed at the beginning, from a cake seller to a wealthy person

When Lu Sheng saw them coming back, he finally felt relieved. As long as he knew they were safe, he didn't say anything and went back to work.

Lu Yan has a lot of things to be busy with, but no matter what she does, there are always two little tails following behind her.

When the snow stopped, Lu Yan quickly gathered the idle girls and women at home to make sleeping bags, coats and boots with the tanned leather, charging them by piece, 20 wen per piece. Pang Zhongqing was called in to inspect and check whether the products were qualified, and those that were not qualified were sent back for re-making.

There is no special place for them now, so they can only take the embroidery back home. Lu Yan also plans to wait for the craftsmen to finish building the house and then build a special embroidery building. When Xu comes, she can teach them more delicate embroidery and take on apprentices.

Lu Yan contacted Zhe Mu again and asked him to get some cowhide.

After finishing this business, Lu Yan finally had the time to think about the glass.

In general, China has a very short history of using glass, which is only about a hundred years old. China did not produce glass for thousands of years before the 5,000 years of history. It is impossible for a dynasty like the Dali Dynasty, which was written based on the author's common sense, to have produced glass.

Why hasn't anyone made glass for so long? Because there are no large-scale alkali mines. Kaolin produces ceramics, and sand and alkali produce glass. Glass has no conditions, but it is far ahead on the road to ceramics. This is a skewed technological tree.

But it is not a difficult thing in essence, as long as you understand the principle.

In theory, sand and alkali are mixed, heated at extremely high temperatures to melt them into a liquid state, bubbles and impurities are removed, poured into a container to fix the shape, cooled and demolded, and the glass is ready.

Sand and alkali are easy to find. Limestone can be used as alkali. Put it in a brick kiln and burn it to try, then slowly adjust the ratio.

Lu Yan did what she said and took her two followers to the brick kiln. The brick-burning craftsmen looked at her with disbelief when they heard that she was going to bake something as transparent as glass.

Lu Yan didn't dare to do too much at first, so she put a bowl in a stone mortar and put it into the kiln along with the brick embryos to be fired.

It takes a long time to bake bricks in a kiln. When the brick-burning master had free time, he chatted with Lu Yan: "Miss Lu, what is the use of making that transparent thing?"

"That would be very useful." Lu Yan said, "It snows a lot in winter, and staring at the snow all the time can easily hurt your eyes. I want to make a transparent lens with a little color that can be worn on the eyes, which can block light but still allow you to see things clearly."

The craftsman nodded: "This is indeed useful. Is this all you do?"

"Of course not, there are so many uses for glass." Lu Yan continued: "And our windows are all made of tung oil paper now. They are all closed in winter to avoid the cold, and not much light can penetrate into the house. If We can make glass as big as a window and install it on the window frame, so that light can come in without opening the window.”

The craftsman's eyes lit up: "This is a good idea."

Lu Yan added: "Yes, every household stays at home in the winter. It's cold with the windows open, and the brightness is not enough if you don't open the windows. It's very hard on the eyes for women to mend clothes and thread needles without any light. In the future, we will build schools in the county. Children We also need light to study, and we can’t burn out our eyes.”

The craftsman was stunned when he heard this: "Our county is going to build a school? Is it true?"

Lu Yan laughed: "Of course we have to build it, but not so fast, just take your time. The school, the embroidery building, and the medical office will all be built."

The craftsman was dumbfounded and repeated: "Real or false? Miss Lu, it's not that I don't believe you. Is this what County Magistrate Lu meant?"

Lu Yan waved her hand: "I mean it, but my words are useful, and County Magistrate Lu listens to me. Look at the public toilet, wasn't it built quickly? That's what I meant too."

The craftsman was already shocked: "That public toilet is what you meant!"

Since the people of Liaoyang County have adapted to going to public toilets when needed, the entire Liaoyang County has become very clean, and no smelly filth can be seen on the road. The common people were not used to it at first, but now they have become accustomed to it and gradually realized the benefits. They all praised County Magistrate Lu for being smart, young and promising, but they did not expect that this was Miss Lu's idea.

The craftsman was speechless. Instead, Jian Hongling and Liu Qingyan, who had been silent, patted her and asked, "Wait a minute, what is a public toilet?"

Lu Yan then remembered that they had not seen this new thing in the past few days since they came to Liaoyang.

It would take several hours for the bricks to come out of the kiln, so Lu Yan decided to take the two of them to the public toilet first.

The public toilets are cleaned every day. It's cold in winter and there's no smell at all, but they look quite clean. Lu Yan also told them about the fines for public defecation.

Jian Hongling was silent for a while after reading it, and said to herself: "Why is it that no one in the capital wants to solve a problem that can be solved so easily?"

There are toilets in the capital. They are small houses built on the roadside that can only accommodate one person at a time. Because they are not cleaned frequently, the smell is very bad. Lu Yan has never been there. Since there are no corresponding penalties, there are still many cases of open defecation. Many men find a corner and unbutton their belts to solve the problem.

"The situation in Beijing is more complicated." Lu Yan said: "Beijing has a large population, and many people collect night incense, so it is unlikely that there will be defecation and urination everywhere. The personnel composition is complex, and blindly enforcing the regulations of fines for violators will cause problems. We still have to take it slowly. The main reason why I can start in Liaoyang is that there are only a few people in Liaoyang."

Jian Hongling nodded thoughtfully.

Liu Qingyan said: "You made the right decision to come to Liaozhou. The area is vast and sparsely populated, so you can put all your wonderful ideas into practice here."

"You are absolutely right." Lu Yan agreed: "This is my experimental field, I love it so much."

Now that she was back, she wasn't in a hurry to go back. Lu Yan went back and fried the nuts she brought back. She packed a bag of chestnuts and pine nuts and ate them. She didn't return to the brick kiln until it was almost time in the evening.