With this idea, after training his own women fiercely that night, the next day, he was ready to realize his idea. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

The next day, when I came to the workshop and saw these apprentices, I had already begun to sharpen the iron bars in the sound of thunder! It's really diligent! After an hour, the iron ruler was made, and one by one they held the bright and dangling subway ruler, if it weren't for the clothes on your body, it would be a bit of a modern industrial atmosphere. Even if it's just a boiler steam engine.

Qin Xiaohu held his iron ruler and couldn't put it down, the wood was a little angular at most, but this iron thing looked much better, and it looked like a long sword in his hand.

Zhao Yan took out another sketch from his arms, drew a cylinder on it, marked the size, and said: "This cylinder is made from ten scales [one decimeter and ten centimeters], you start to make it!" Polishing it a little smoother! [The standard weight of one cubic decimeter of iron should be 7800 grams]

Qin Xiaohu didn't ask anymore, he was curious about the use of these machines! And this machine is not as laborious as carpentry, but it only needs to be put on the shelf, but at this time, the group of children is interested, and one by one they begin to grind the cylinders.

Zhao Yan actually wanted to make a square at first, but he thought that the square was in the way of use, but he didn't have much hope for this group of children, this cylinder's magic code was not so easy to make! It's going to be a mixed bag! But that's not a problem!

Qin Xiaohu made this thing quickly, and directly grinded it out with an iron rod. And it's all bright.

Zhao Yan didn't check it, took out the drawing of the balance from his arms, handed it to Qin Xiaohu, and said, "This is a balance scale, you can do it!" There are scale sizes marked on it, and you can measure it when you hold it, so don't make it too outrageous. ”

The balance designed by Zhao Yan is the weighing formula of later generations, the principle is clear and easy to understand, and the left and right are more weighing plates, because it is a weighing object, so the tray of the balance is also below, and the star position in the middle can also be moved!

The difficulty of weighing this balance is actually not very large, as long as you can understand the diagram, endure the heart, and then keep polishing the iron bar of a certain size. It took a whole day for these young men, when the sun was about to set, to make it and assemble it, looking at the obviously shaking iron scale, Zhao Yan asked the left and right weighing plates to be put ready wooden planks. Sure enough, there is an error, and it is not small.

Zhao Yan pointed to the tray on the left and said to a group of children: "This is the error!" No matter how good you do, this error will exist, including the teacher's doing, like this is the left side of the sinking, the right side is light! What to do? Let's put the middle point and twist it on the left, so that the adjustable balance has this benefit! Zhao Yan twisted a little fulcrum to the left, and the balance floated again!

Qin Xiaohu and a group of children watched with their eyes open, they learned more than they had seen in a lifetime, this was simply a whole new world.

Zhao Yan said again: "Bring up your morning diagram cylinder!" Teacher, look at how big your error is? ”

So the cylinder made by Qin Xiaohu was placed on the left, and then the cylinders of the nine children were placed on the right side in turn, and after looking at them one by one, they found that there was really no one qualified, all of them were unqualified.

Zhao Yan sighed and said, "You guys! One by one, one by one! This thing is so different! What to do! Choose one of the slightly heavier ones and drill some of the excess on the drill press! Try again! ”

Zhao Yan said that he picked this one a little heavier, Ming Huang was a little heavier than Qin Xiaohu's, and then drilled it a little with a drilling machine, and then weighed it again, and found that it was still a little heavier, so he drilled it again, and after three times, he almost looked balanced.

Zhao Yan said to a group of apprentices: "In addition to this drilling weight reduction method, there is also a material weight increase method, how to do this?" Teacher will demonstrate it for you! So he took the lightest cylinder, drilled a big hole in it, put it on the scale, and began to grind out the thin strips of iron that he needed. In the end, they took the right fit and inserted it into the big hole drilled out, and tied it together with a rope. The scales are almost balanced again.

Zhao Yan taught the apprentices again and said, "This lesson is how to make a balance!" We're almost done! Weighing blocks were also made! As he spoke, he took Qin Xiaohu's cylinder and said, "In the future, this weight will be ten catties [6120 grams, the standard ten catties of Zhao Yan in this time and space,] is the standard weight, and all the nominal standard catties of my drawings in the future will be so heavy!" Take this as the standard! I'll call it Qin Hujin! Saying that, he handed Qin Xiaohu's standard iron pillar to Qin Xiaohu with a smile and said with a smile, "Find some oil, oil all these good things, save the temptation, after finishing the oil, go home for dinner, for the teacher to go back to eat with your master." Especially this standard catty! It will be our treasure in the future, and we must take care of it. Can't let it rust anymore! ”

Qin Xiaohu took over the cylinder with great importance, and this standard weight model was named after himself! He suddenly felt that what he had achieved before was too unworthy of mention, and this was the thing he felt most honored about.

Zhao Yan patted Xiaohu on the shoulder and went out of the door and went back to the Huang Mansion, as for the next things in this courtyard, it was all left to Qin Xiaohu to take care of. Anyway, there is no entertainment in this era, and these guys, with such a lot of spirit, will not be tired.

Qin Xiaohu carefully oiled these things, cleaned them, and let people go back one by one. But he looked at the drawings himself, and he didn't want to leave. He liked this thing so much, it was even more interesting than porcelain burning.

Zhao Yan returned to Huangfu or those three things, eating, sleeping, playing with his wife, and he liked the last activity the most, often just playing, he was never tired of it, and he had an all-night play, which was enough to toss his four wives and concubines, and they were all satisfied, pulling the corners of their mouths, leaning on his arms.

Lu Yatou followed Zhao Yan all day long, serving him closely, but after looking at today's balance, she also felt interested, "Xianggong, do you want to sell the balance?" Will you use these scales to weigh in the future? ”

Zhao Yan kept stroking the jade ball in his arms with his big hand, savoring the warm and smooth feeling, and said: "I do think so, but I feel that it is slow, so I made a balance to weigh, and it may not be enough in the future!" ”

Miss Huang pinched her own pulse, and suddenly exclaimed in surprise for a long time: "Xianggong! The slave family is there again! Do you want to reward the slaves? ”

Zhao Yan looked at her, understood what she meant, and was surprised, it had only been two months since she was born, and she was pregnant again, touched Miss Huang's lower abdomen with her big hand, and said with a smile: "My beloved wife's belly is really a treasure of feng shui!" So soon she was pregnant with a husband again! Now that the husband has Xiaoyue Xiaoyu, as well as the jade red girl's Tsing Yi, and Ziqing in A Luo's belly, there are only four babies now, if you count you, it will be five! "For a while, it seems that his race manufacturing career has taken a big step forward.

Lu Yatou looked lonely, her beautiful and lovely little belly, but there was no movement at all, and after being happy for a while, she began to feel sad, she was going to cry.

Zhao Yan hugged her, kissed her fiercely, and dried her tears.

Lu Yatou was stimulated, went crazy, twisted her little buttocks, and began to turn over on the horse again, and practiced fiercely, she wanted to get pregnant, wanted to have a baby, otherwise after she died, a woman who could not continue the incense, how could she have the face to enter the ancestral grave of the Zhao family, as soon as she remembered that she could not lie in a grave with Zhao Lang, she was uncomfortable and panicked.

Zhao Yan turned over and pressed her, pouring it fiercely, he felt the heart of the girl, and the battle spirit boiled. There's just one more in the back! Miss Wanqing also looked at him with waves! She wants it too!