Chapter 95 Egg

After sending the butcher away, he turned back and found Shi Wei squatting in front of the bamboo cage, looking at the little rooster in the cage: "Huh? Wei'er, didn't you go build a chicken shed with your little sister and the others?"

Shi Wei stood up and said, "It's not fun to build a chicken shed and watch the uncle disembowel the chicken."

Well, you are a tiger girl. You are awesome. Su You held her hand and said, "Yesterday, your big brother told me that Tianshi Dao wants you to learn medical skills. This is a good thing. You should study hard and protect everyone in the future."

Longevity."

"I will dissect a rabbit for you another day and gain a preliminary understanding of anatomy. It will be useful for studying medicine in the future. For now, let's go to the chicken shed first."

The chicken shed is made of bamboo poles, one side is against the outer wall of the new house, and the top is covered with this year's newly harvested straw as a roof.

In the shed are square cages made of bamboo poles, and each cage has a trap door.

Outside the cage is a half-cut bamboo tube, one for water and one for feed, so it won't be contaminated by feces.

Under each chicken coop, there is a rough mat, made of bamboo strips and bamboo shoot shells, used to absorb chicken manure.

The new home is very complete with tools, and the kids are also familiar with it. The three rows of chicken cages are neatly arranged, and they have a sense of beauty.

Su You yelled "Hello". These three rows of chicken coops have shown that the children have made great progress in reading drawings, using rulers and measures, using tools, and division of labor and coordination.

Many small details are gathered in one place to form standards and efficiency.

Although it is still unable to compare with Da Gong's craftsmanship, Su You believes that if accumulated step by step, technological progress will always bring many benefits to the Song Dynasty.

The next step is to put the chickens into the cage, add water and food.

After washing and drying the thick bamboo cages made by the villagers to hold chickens and ducks, Su You led the children to process the various eggs they received.

While the sun was still shining, Su You almost habitually pressed a bamboo tube on the egg, circled the gap between the two with his hand, then put the other end over his eyes, and looked at the sun to check the fertilization of the egg.

Well, the roosters and ducks in the village are very hard-working, and the welfare of free-range guys is still guaranteed in this regard.

After checking several eggs, I remembered that I didn’t have a thermometer, so artificial incubation seemed a bit difficult.

Just do it as soon as you think of it. This thing is actually not complicated, but it took a lot of effort to convince Shi Wei to lend the clockwork in the brass frog for use.

Seeing Shi Wei staring at the clockwork in her hand and the brass frog that had been broken into several pieces with tears in her eyes, Su You really felt that she had committed a great sin.

He had no choice but to comfort Shi Wei and said: "Weier, with this thing, we can hatch chicks and ducks by ourselves, without having to trouble mother chickens and ducks. I heard that the newly hatched chicks and ducks will hatch the first chicks."

Anyone you see at first glance thinks you are your mother!"

Shi Wei was finally happy now: "Really? Brother Xiaoyou, hurry up and do it. Then I will be your mother and you will be your father!"

Uh... As long as you're happy, Su You didn't dare to answer this. He directly found a thin copper bar and pounded it into thin slices on the anvil. He asked Zhang Sheng to press a chopstick on the table and pump it hard a few times.

This time, the copper sheet becomes evenly thick.

Use a ruler and a folding knife to cut the copper sheets into neat copper sheets, curl them up on the chopsticks, and then open them. There happened to be a lot of fish bladders left over from yesterday's banquet. Make glue to stick the copper sheets and the spring together, and wrap a thin string around the outside.

Silk thread reinforcement.

Glue the outermost edge of this thing to the inside of a bamboo tube. Take out the central spring shaft and replace it with a shaft with a pointer.

Then stick a bamboo strip net on both sides, leaving the holes in the net a little larger as a channel for air circulation.

The kids are also helping with this, and it’s a good time to inspire interest in science.

Su You told everyone that this is called a temperature box. First, he placed a mark on the inner side of the box at room temperature, then closed the lid and asked the children to take turns sticking the meat into the armpits.

Soon everyone discovered that the position of the pointer had shifted.

Su You explained to everyone that this is because copper and iron have different thermal expansion and contraction ratios at different temperatures. The body temperature is higher than the air temperature, which will cause the pointer to shift.

Then he told everyone that a child's body surface temperature is generally 36.5 degrees, and then he shamelessly used his own temperature as the standard of 36.5 degrees and drew a scale.

Place the temperature box in a bowl, cover it with a plate and steam it over water. Soon the pointer will change dramatically.

The higher the air pressure, the better the fish will open. As a senior fishing friend, Su You is well aware of the air pressure values ​​in each season. The air pressure in Meishan at this time is generally around 965 Pa.

Therefore, converted into water temperature, the actual boiling temperature is only 96 degrees.

Two scales were obtained, and the difference in the middle was exactly about 60 degrees, so it was easy to mark the range of each degree.

This question is also very interesting. The thermometer is relatively small. How can we get a clear temperature indication?

Academic master Su Xiaomei provided the perfect solution, expanding the radius of the circle.

Su You gave a thumbs up to express his admiration, and then made a large disk that was concentric with the temperature box, so that the distance between each degree on the large disk was enlarged.

The next question is, what is the temperature today?

This is simple, because the scale has already come out, and the temperature today is 12 degrees.

Next, everyone began to guess what the temperature should be when a hen hatches an egg. There were many opinions on this topic, and Shi Wei came up with an idea. Wouldn’t it be okay to try it by finding a chicken that hatches eggs?!

Then a group of children came out of the house like bees, and Hachiko shouted: "It's almost time to eat, where are you going?! Xiaoyou, you're skinny again?!"

After searching several houses, she finally saw one she was satisfied with at Fifth Brother's house. Shi Wei clapped her hands: "This one is big! This one can sit on its butt!"

This old hen was not afraid of people. Su You gently stuffed the thermometer under the hen's buttocks. The old hen twisted her body and hatched the thermometer as a new egg.

A group of children squatted down and looked at the old hen with their chins in their hands. At first glance, it looked like they were also hatching eggs.

This posture made the fifth sister-in-law and the old hen very nervous: "You baby, please don't mess around. I can't keep letting you raise me. My sister-in-law is still hoping to produce chicks..."

Ten minutes later, Su You gently took out the thermometer, opened the box, and the pointer pointed to a little over thirty-eight degrees.

The normal body temperature of hens is 40 to 42 degrees, and the temperature transmitted to the eggs is generally 38 to 39 degrees, which shows that the accuracy of this thermometer is still very high.

Su You laughed loudly: "Let's go home!"

A group of children said their goodbyes and left in a noisy manner, which made the fifth sister-in-law confused: "These children! The oil boy is back and it won't stop again!"

There were still a lot of leftovers from the day before, so Su You planned to pick up the ones that could be cooked together and cook a pot of stew, and then make a meal of cold vegetables and braised pork.

Zhang Sheng used the remaining bamboo and straw to build a bamboo shed around the large stove where yesterday's banquet was held. He removed the iron pot, covered it with a stone slab, sealed the opening with wet mud, leaving only charcoal fire in the stove, and then spread it on the stove.

Put straw on it and prepare it as an incubation room.

Su You came out to ask people to eat, and smiled at Zhang Sheng: "That's right, I don't need to remind you anymore, Brother Gou Sheng already knows what we are going to do next."

Zhang Sheng said with a smile: "After studying with the young master for so long, my eyes are still getting brighter."

After dinner, everyone stayed up all night, others added straw, while Shi Wei and Su Xiaomei put thermometers on the straw to monitor the temperature.

The straw is spread to three finger thickness and the temperature is right.

The incubation temperature of duck eggs is one degree lower than that of chicken eggs, so Su You divided the eggs into two layers, placed eggs on the lower layer, covered them with straw, and placed a layer of duck eggs on top.

The first batch were experimental products, so when Su You took care of the eggs, he only selected 30 eggs each with basically the same development for hatching.

The rest, enough for the kids to eat, is preserved eggs and salted eggs.

The next day, Su You began to lead the children to paste the wall with mud and straw as a thermal insulation measure.

Several windows were opened at the bottom of the house, and the inside and outside were covered with thin silk brushed with tung oil to barely solve the lighting problem.

The reason why it is opened at the bottom is because the cold air will only stay at the bottom, while the hot air can continue to be maintained at the top.

However, this added another problem of preventing rats, so Su You had to go to the village to borrow two old cats to guard it.

But there was another sensation in Sujia Village in Longli. Youba really started to act randomly again! He is going to hatch eggs this time!
Chapter completed!