Datang: God-level Choice

Seeing the happy little loli and the strange material requirements, the girls were also very curious.

Instruct the maids: After taking out the required materials from the warehouse, Li Lizhi and the other girls also entered the laboratory together.

"Husband, what new invention did you come up with to make Sizi and the others so happy?"

"It's such a simple little thing, what does it do?"

"If the royal father sees it, he will definitely say that the husband is not doing his job properly, hehe!"

The little princess and others teased their husband together

"When did the husband stop doing the right job, you are a slander of Chi Guoguo, wait: all of you are waiting to get the family law by yourself"

Qin Huaidao pretended to be "ruthless"

Of 1

7 looks at a group of beautiful wives and concubines

I invented this thing, but it has a great use. As for those salted fish, it is called the combination of work and rest. How can you come up with good ideas and contribute to the construction of Datang?

I have already completed all the things I have conceived, and leave the rest to others. That is called a clear division of labor. I believe that if the other people are good or not, these girls must all want to take the family law again.

"See if you can get it, husband, but you're talking nonsense again"

The girls gave Qin Huaidao a sullen look, and they were all curious and nervous.

They still have great confidence in their husband's abilities.

As for whether the family law is not family law, anyway, it all depends on the meaning of this overbearing husband, and they also enjoy it.

chapter

Chapter [-]: Small objects are useful

(The first one! Ask for full order!)

On the other hand, the little loli have already started making

What they want to make is the most basic version of the stethoscope.

The stethoscope is actually a sound amplifier. Through the auscultation head attached to the part, the sound of the part is collected and amplified, and transmitted to the earhook through the airtight sound guide hall to complete the auscultation effect.

The seemingly simple three parts, combined, become an extremely convenient thing, this is the charm of science, Qin Huaidao also hopes that through the little loli, and experience it personally, increase the understanding of science. hobby

Because of the rubber, the three 3 parts of the stethoscope, with the efforts of the little loli, step by step from the drawing to the real thing

The earplugs are made of soft fur. Since the cold-proof earplugs were used when playing sleds in winter, this is the easiest to make.

The sound guide tube is made of rubber. After the small tube is sewn with thread, it is glued with fish glue to ensure no air leakage.

For the auscultation head, the 17 uses a small metal box, the size is only two inches in diameter, in order to increase the auscultation effect, a layer of skin that imitates the eardrum is also added in between.

Then glue the three 3 parts together with isinglass, the whole stethoscope, even if you are done

The rest of the time, the little loli who love beauty, still added a little decoration on the earplugs, which looked like cat ears, and Qin Huaidao laughed when they saw it.

"Yes, our little babies are all ingenious and worthy of praise"

Qin Huaidao checked the works of the little loli and gave a full score, which made the little loli immediately cheer.

"Brother-in-law, we've already done everything, what are we going to do now?"

Xiao Sizi has been thinking about how to hear the baby's fetal heart sound, and asked curiously.

"This is also very simple, my brother-in-law will show you a demonstration."

Qin Huaidao set his sights on Sophia, the princess of the flower of Eastern Rome, who became the first medical examinee in Datang's stethoscope practice.

The youngest daughter, who has not yet been born, became the first person to be listened to.

Qin Huaidao is very good at physical examination.

Of course, only for the beautiful sister, the other side is cool

"Husband, what are you doing?"

Seeing Qin Huaidao hanging up the earplugs, holding a small metal box and sticking it towards him, with a familiar smirk on his face, Sophia flashed thoughtfully.

"I just want to try this new stethoscope, how effective is it to listen to fetal heart sounds?"

Qin Huaidao quickly regained his composure and said, "If the effect is good, Sophia, you can also hear the baby's heartbeat!"

"Really, that husband, just try it out"

Hearing Qin Huaidao saying that she could hear the heartbeat of the fetus, Sophia was instantly moved. For the next life of a mother, the health of her own baby is extremely important, but even if a female doctor comes to check every day, Sophia always I can't let go of my heart. I have been studying for a while now, hoping to understand a little more about the child in the belly. It would be great if he could hear the baby's heart sound directly.

Not only Sophia, but the rest of the girls, like the little loli, gathered around curiously, wanting to witness the experiment of the first stethoscope in history.

However, Qin Huaidao has not been in a hurry, holding the auscultation head, which suddenly made the little loli a little anxious.

"Brother-in-law, why haven't we started yet?"

“The new town is still waiting in line”

"Is it not done well?"

The little loli urged