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

It was already night when the kiln was finally opened for the new batch of bricks. Lu Yan and the others stood by, waiting for her glass.

The stone bowl containing the glass was taken out. At the bottom of the bowl was a blurry mess. Lu Yan waited for it to cool down, and then she used her hands to break off the gravel and impurities next to it. She really broke out a translucent object half the size of her palm. Lu Yan wiped off the loose soil on it, held it up to the light, and the light could pass through most of it.

Jian Hongling and Liu Qingyan shouted in surprise: "Is this done? Is the glass really made? "

The craftsman standing by was also amazed: "It really worked!"

Lu Yan nodded: "The principle is probably like this. I need to make a lot of them, put them in a big mold, melt them and then shape them. I will burn the glass for me in the next few days. Can you do it?"

Several craftsmen nodded: "Don't worry, Miss Lu, this is not difficult. We have memorized your steps."

"That's okay." Lu Yan agreed immediately. She could ask others to do the work without doing it herself: "If you have any questions, come to me at the Yamen anytime. I'll come over in three days to check on your progress."

Lu Yan put aside the glass making business and got some rocks to make molds. Wood couldn't stand the temperature at which the glass melted, so stone was the only option.

On the third day, Lu Yan took the two small molds she made to the brick kiln. They helped Lu Yan burn seven or eight palm-sized glass blocks during the brick burning process. Lu Yan put two of them in the mold and put the mold into the brick kiln.

When the kiln was opened again, the glass was burned into two discs. Lu Yan picked up a thin wire, twisted it, and fixed the two discs together, and the glasses took shape.

The glasses did not have a prescription. Lu Yan planned to make sunglasses. She went back and tried it by applying ink on them. It was not very colored, but it was exactly the effect Lu Yan wanted. A little coloring can block the light and still make it transparent.

Jian Hongling and Liu Qingyan couldn't let go of this new thing, and they wore it for a while. When Lu Sheng came back in the evening, he was also surprised to see this thing.

Lu Sheng also tried it on and said, "Not bad, is this specially designed to prevent damage caused by looking at the snow for a long time?"

"You can also wear it to block the sun in the summer." Lu Yan said: "The flat mirror I made is not very useful. The convex lens and concave lens are more useful."

Lu Sheng looked at Lu Yan confused: "What is that?"

"A lens that is thick in the middle and thin on the sides is a convex lens, and a lens that is thin in the middle and thick on the sides is a concave lens." Lu Yan explained: "It can be used to magnify and reduce things. Convex lenses are more commonly used. They can magnify things and see things far away."

Lu Sheng raised his eyebrows: "Can you show it to me?"

Lu Yan took out a bunch of lenses she had molded today, took one out, polished the surrounding area to make it thinner, and rubbed a convex lens with her hands.

Lu Sheng took out a book from his room. Lu Yan held a convex lens and placed it not far away from the book. Several people came forward and found that the words read through the lens were really magnified a lot.

The three of them were shocked. They had never thought that this small piece of glass could have such a function. Lu Sheng thought more long-term: "Can this be used for sentry duty?"

Lu Yan nodded: "It can be used as a telescope."

There was a faint look of excitement in Lu Sheng's eyes: "You can tell the prince that our army is of great use."

Lu Yan hesitated for a moment: "Don't worry about it now. I have to think about it some more and come up with a set for him when the time comes. Don't worry about it yet."

Whatever Lu Yan said was what Lu Sheng listened to 100% and simply nodded.

Lu Yan thought more. Convex lenses can not only be used to make myopic glasses, magnifying glasses and telescopes, but also microscopes.

A microscope is a group of convex lenses combined together to magnify hundreds or thousands of times. If a microscope could be made, she could make more useful things and explain the principles to others intuitively, instead of trying to explain modern vocabulary with some abstract similar concepts like now.

The demand for glass in ancient China was very small, and there was also a lack of environment for directly burning glass. Without glass, there would be no tools for magnification. Technology has gone a little bit wrong, which has directly led to the distance from modern science getting further and further away.

If Lu Yan fills in this technological point, I wonder how history will develop.

The glass matter was left at that for the time being. She asked them to make a few bricks for her when they were making bricks, and she asked someone to make various molds.

After so long, Xueer is finally giving birth. Lu Yan had already prepared the delivery room for it, and Xue'er got in early in the morning. Banban also wanted to go in, but Xue'er knocked her out, so she had to guard outside the cabin.

At night, Xueer finally gave birth to four puppies, two snow-white female puppies like her, a male puppy with black hair but four white paws, and another one that was very similar to Banban. A small male dog with white fur and black spots.

It was also the first time for Jian Hongling and Liu Qingyan to see puppies being born. The two of them gathered together to look at the puppies that had just been born and had not yet opened their eyes. They looked at how they were feeding under their mother's belly without even opening their eyes. He dared not speak loudly for fear of scaring the puppy.

Both Lu Sheng and Lu Yan were too lazy to name the puppies. Jian Hongling and Liu Qingyan took over the task of naming the puppies. They spent the whole day mumbling together and named the four puppies Binghun, Xuepo, Taxue and Dianmo. .

Lu Yan: "..."

Lu Sheng: "..."

Lu Yan pretended not to hear anything and made a hasty decision: "Da Bai, Er Bai, Xiao Bai Shoes, Xiao Mo Dot."

Lu Sheng agreed to everything Lu Yan said. Jian Hongling and Liu Qingyan's resistance was futile, and the puppy's name was decided.