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After dinner, there was still some time before dark, and Thirteen Niang came to the small courtyard in the right chamber again and began her pendulum clock research work, since Thirteen Niang married into the Yang family, this small courtyard has become Su's studio.

There are still a lot of research results in Su's studio, and it is already very famous in Tokyo.

Yang Yi also came over today, and he suggested that Thirteen Niang study the pendulum clock, but he usually didn't care about it, and let Thirteen Niang explore it by himself.

Today, Scholar Yang is quite attentive, doing experiments in the studio, and explaining to Thirteen Niang. The experiment was to hang a weighing stone on a string on the edge of a table and let it swing back and forth.

"From our experiment, the lady should have also noticed that whether the pendulum is pulled to the left by ten inches or five inches, the time from the pendulum swinging back and forth to stopping after letting go is one solstice, in other words, the radian of the pendulum swing has no effect on the cycle;

But the lady must pay attention to the length of the pendulum rope is crucial. If you fiddle with the length of the pendulum, you will find that you can adjust the length of the pendulum so that it swings back and forth 60 times to make the needle turn in one turn. ”

Thirteen Niang listened very seriously, she was wearing a purple jacket, a floral pleated skirt, a bun on her head, and a simple jade hairpin, but it did not reduce her noble temperament at all, it was difficult for outsiders to imagine that such a young woman with a noble and moving flower letter would like to fiddle with these miscellaneous studies.

After watching Yang Yi's experiment, she nodded thoughtfully, and then said: "I will slowly adjust the length of the pendulum, what else does the official think, tell me quickly." ”

"Well, I'm a little tired after bending over for a long time." Scholar Yang straightened up. hugged Thirteen Niang's fragrant shoulders, as if he wanted to rest on her.

Thirteen Niang didn't know that he wanted to make it bad again. Quietly preparing in his hands, he deliberately pretended not to know on the surface. asked with concern: "The official is sleepy, and the concubine will help you beat it." ”

"No, no, just let the lady rely on her husband." Yang Daguanren's hand naturally slid down and turned into a hug around her small waist, um, nothing abnormal, the hand continued to slide down, and fell on the very warped buttocks, um. Still hasn't moved, hehe.......

"Ahh A terrible scream sounded, and Yang Daguan suddenly covered his waist and jumped away, like a wolf rushing to the pig.

"Official, what's wrong with you? You okay? Thirteen Niang came up to greet with a concerned face, of course, there must be some innocent expressions in the concern.

"Don't don't, it's okay for your husband, lady. Let's move on. ”

"Continue with what?"

"Continue to talk about pendulum clocks."

"Hehe, that official, please, the concubine listens."

In the demonic studio, Yang Daguan ran back to the table tremblingly. Picking up a quill pen and drawing as he spoke, he said, "Lady, after figuring out the facts about the pendulum, it is theoretically feasible to make an accurate clock design with the pendulum." I thought about it for many days for my husband and gained a little. Lady, please look at this ratchet device. ”

Thirteen Niang's demonic aura has been taken away, and she will carefully watch him explain while drawing.

"There is a tooth in the ratchet unit with a gear tooth with a specific shape of gear. There is also a pendulum. Connecting the pendulum is some kind of device that engages the gear teeth. The basic idea shown in this diagram is that once the pendulum swings back and forth, the gears will have a tooth "escape;

For example, if the pendulum swings to the left and passes through the center position shown in the diagram, the left brake part that connects the pendulum will release a tooth as the pendulum continues to swing to the left. The gear then advances half the width of the tooth and hits the right brake component. ”

Yang Yi explained according to the drawings she had drawn, and the smart Thirteen Niang understood as soon as she heard it, her face was full of joy, and soon she found the problem, so she asked while thinking: "Official, what you said is very reasonable, but the key is that the pendulum will not keep swinging by itself, and it will not be able to keep driving the wheel teeth to rotate, so we can't let people keep swinging the pendulum here, right?" ”

Yang Daguan wasted no time in boasting: "The lady is too smart, she can see the key to the problem at a glance, yes, the pendulum will not swing endlessly." Therefore, another function of the ratchet device gear is to give enough energy to the pendulum so that the pendulum can overcome the frictional force and keep it swinging;

To accomplish this task, the teeth of the anchor and ratchet device gears are designed with a special shape. If the gear's teeth escape correctly, the pendulum will exert a light thrust in the proper direction for each swing of the anchor. The light thrust increases the amount of energy required by the pendulum to overcome the frictional force, allowing it to keep the pendulum .........."

Yang Daguan explained according to the drawings, and Thirteen Niang easily understood, so excited that she let out a cheer, and then took the initiative to hug Yang Daguanren's neck and pecked him lightly on the cheek to encourage.

At this moment, Thirteen Niang looks like an innocent girl, as pretty as a budding peony with dewdrops.

Yang Daguan felt that she was a failure, because she was fascinated by the beauty of her own lady and watched blankly.

Thirteen Niang bit her warm red lips, and under his gaze, a faint flush floated on her cheeks, like peach cheeks dyed for the first time, delicate but not glamorous, and charming like a fairy. Yang Daguan couldn't help but kiss her red lips deeply.

This time, Thirteen Niang didn't stop it, wrapped her arms around his neck, kissed back affectionately, and enjoyed the intoxicating warmth between husband and wife.

Outside, the sky gradually darkened, and the first star hung on the light ochre canopy, which looked particularly bright.

Yang Daguan said with a look of pity: "Lady, don't be too tired, let's stop here today, let's discuss it tomorrow." ”

"Hmm." Thirteen Niang replied lightly and carefully came up to brush off the sawdust on his cuffs.

Yang took her warm little hand out of the courtyard, and after returning to the room of Thirteen Niang, he snatched Ming'er's messenger and washed Thirteen Niang's face with hot water, and the care was beyond words.

"Hehe, does the official have anything to say to the concubine?"

As soon as he heard Thirteen Niang laugh before speaking, Yang Daguan suddenly felt the demonic aura in the room, and hurriedly said, "No......... There is not much to say. ”

"Is there really not? Hehe....... official is so attentive today, is there really nothing to say to the concubine? ”

"Well, the lady misunderstood, hasn't it always been like this for a husband? For the husband today just inexplicably feel that this streamer is fleeting, should cherish the time, cherish the lady, look back, in a flash, we have been married for several years, for the husband in the past few years is mostly Rong Ma handsome, with little time with the lady, alas, how long has it been since the southern expedition Jiaozhi came back, I remember that I sent a letter to the family in Pennsylvania at the time, Qing Niang said that the lady put it away, this, the lady is very fond of the family letter, right? ”

Thirteen Niang listened to him talk about him, talking about him left and right, her eyebrows and eyes slowly bent down, and she couldn't help but "poof!" He smiled with his face hidden.

But after laughing a few times, Thirteen Niang's eyes slowly turned red.

Yang Yi panicked now, went up and hugged her and asked, "Lady, what's wrong?" Why are you crying? If the lady has any grievances, just say it, I will definitely be the master for you. ”

Thirteen Niang leaned her head into his arms and said softly: "The concubine body is moved, official, the concubine body is really afraid of being spoiled by you." ”

Yang Yi gently stroked her shoulder and back, and said with a smile: "Where does the lady say, the lady has always been generous and decent, gentle and virtuous, reasonable and courteous, how to spoil it." ”

The thirteen mother's head arched lightly in his arms, and said faintly: "The husband is the outline of the wife, in other families, who has ever seen the husband serve tea and pour water for the lady, I am afraid that there is only an official in this world You spoil your own lady so much, how can the concubine not know in her body and mind, over the years, the official has never had a cold face on the concubine, and has never said a heavy word to the concubine, no matter what the concubine wants to do, the official always lets my temperament mess around, and the official ........."

Thirteen Niang couldn't go on, hugged him tightly, sobbing softly, Yang Yi simply hugged her to the couch, hugged her and gently comforted her: "Don't be like this, you make your husband feel more and more guilty like this." ”

"No, official, you can make the family cry."

Yang Yi couldn't help but laugh when she heard that she had the coquettish taste of her little daughter, and coughed lightly and said: "Lady, your tears have wet my clothes, otherwise, let's take off our clothes, so that we are not afraid of being wet." ”

Thirteen Niang's little hand subconsciously stretched out to his waist, but this time she was reluctant to twist, and changed it to a gentle caressing, at this time, she was like a bird, infinitely gentle.

Even Ming'er, who was waiting beside her, was almost stupid, Thirteen Niang had never lost her gentleness, but Ming'er really hadn't seen her look like a bird. is in charge of the housemother of the Ruoda family, at this moment it is like an eight or nine-year-old girl hiding in her father's arms and being coquettish.

Thirteen Niang suddenly turned her head and hummed to Ming'er: "What are you looking at, haven't you seen it?" Hum. ”

"Lady, ......... you" Ming'er raised a hand and pointed at Thirteen Niang, which was very rude, but she couldn't take care of it anymore, she was so surprised that it was.

"What are you, tomorrow you go to Xingguofang, see what the three of them need, and then pay the monthly money according to this side every month, so long has passed, let them come and go." On any holiday, remember to invite them to have dinner together, and if they have a heart, they can often come over to greet the old lady......"

Although Yang Yi talked about him left and right just now, Thirteen Niang Bingxue was smart, and as soon as he mentioned that he had come back from the expedition for a long time, Thirteen Niang understood what he really meant.

She gave a lot of instructions to Ming'er, except that she didn't bring people here to live permanently, and the other treatment was no different from here.

Ming'er was still a little strange, why did her own lady suddenly order this, but she saw Thirteen Niang turn around, twist lightly on Yang Yi's arm, and then caress the twisted place with pity, the little daughter who hated and loved made Ming'er feel a little numb.

Hmmm, thinking of what her aunt said just now, Ming'er suddenly understood something, and couldn't help but sigh secretly in her heart, it's really husband and wife, you don't need to say much, you can understand each other, this is probably the so-called heart-to-heart connection.

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PS: Thank you for the support of book friends such as Autumn Shenguang, Fish Dragon Xinxin, 3A762, gdszyylxq, and Ye → are still arrogant, thank you.

(To be continued.) )