Otaku Engineer in Great Tang Dynasty

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night.

After eating, Li Zexuan went out and walked towards Yanhuang Academy.

Laner's little tail naturally followed.

It is said that during the time that Han Xiaoyun's son Mei Zhihuan was in the Li family, Laner had found a new playmate, and finally had someone younger than her in the family, this girl naturally became a big girl. Sister, a lot of times that kind of pretending to be an adult always makes others laugh.

However, as early as the day before yesterday, Mei Zhihuan's condition had already recovered. Naturally, their mother and son went home. When the little guy finally left, he was a little reluctant to let Li Zexuan hold him. Kissing Father Li and Mrs. Li, and not kissing Han Yuxi, on the contrary, she is very close to Li Zexuan, who is often away from home, making Mrs. Li laugh at this child and call this child a little conscientious~!

The two brothers and sisters were walking on the path of Yunshan Mountain. Although night fell, the roads in Yunshan Mountain were all cement roads. Now that it is late autumn, the cool night wind blows on the body, making people feel a chill.

"You little girl, when you go out, your mother tells you to wear more clothes, but you don't wear them. Now you know it's cold~?"

Seeing that Lan'er's legs were shaking while walking, Li Zexuan reprimanded her angrily.

Although he said so, he still took off the cloak on his back and wrapped it around the little girl.

Yes, it is entanglement. Laner's stature is short, and at most it can only be as high as Li Zexuan's waist. If such a long cloak is put on the little girl, half of it will be dragged on the ground. No way she would step on the hem and trip herself!

So, the lovely Laner was wrapped into a zongzi!

"Yeah! Smelly brother, this is so ugly! Take it off~!"

Laner just wanted to say "Brother is so nice", but Li Zexuan wrapped it up like this. How could she, who has always loved beauty, stand this, and immediately protested.

"You're ugly! You'll be cold and sick for a while, and I think you're not ugly!"

Li Zexuan knocked his sister's forehead angrily, and dragged the latter to continue walking towards the academy.

"Brother, brother! Can we really see the scenery on the moon in a while?"

"Perhaps! It depends on your brother Shao Ning and sister Wei Er's efforts!"

"Powerful? Brother, what do you mean by power?"

"emmmm...literally!"

"Hmph, stinky brother, you lied to me again, certainly not literally!"

"Uh... Giving strength means giving strength and energy!"

"Oh... Then I hope Brother Shaoning and Sister Wei'er can do their best! Otherwise, Lan'er will go all the way in vain... By the way, brother, is there Fairy Chang'e on the moon?"

"...Oh! Laner, you'll know in a while!"

The two brothers and sisters chatted with each other, and after a while, they came to Yanhuang Academy. The two went straight upstairs to the atrium.

At first, Li Zexuan designed an atrium in the middle of the fourth to sixth floors of the central double main building of Guanghua Building, with a semi-circular glass zenith at the top for lighting, and now it can be used to place astronomical telescopes for astronomical observation!

After entering the atrium, Li Zexuan discovered that there were not only their brothers and sisters here tonight, but dozens of students including Li Tai, Sun Zifan, and Cheng Chumo were all there!

"Mountain Chief~!"

When the students saw Li Zexuan coming, they greeted each other with more respect than before!

Some people at the bottom may not know that the reason why the cholera was quickly recovered this time was because Li Zexuan contributed the prescription, but how could they not know that as students of Yanhuang Academy? After all, quite a few of them are very well-informed, and they have passed it on from ten to ten, so they basically know that Li Zexuan is the "savior" of this plague!

Especially those students who had cholera and were in good health looked at Li Zexuan with gratitude! Others are apprentices to learn art. They not only learn art from apprenticeships, but also save lives at critical times. I don’t know how many people will be envious if they say it!

"Hmm! Have you eaten yet~?"

Li Zexuan nodded and said in a pleasant manner.

Now that the weather is cold, the students don't need military training anymore. Naturally, they don't have to go to the bathhouse to take a shower every day after school, so they have some time to go out at night before going to bed.

Li Zexuan didn't think about launching the evening self-study system in the academy before, but the light at night is too poor. In this era, if there are no electric lights, oil lamps, and candles, it is tantamount to the light of fireflies in a large classroom with about forty students. , If you force late self-study, it will only ruin the eyes of the students. After a few years, eight out of ten students have similar eyes, which is not beautiful!

"Ate!"

As soon as Li Zexuan's voice fell, the students responded with a lot of talk.

At this time, Mo Lingwei walked over from the telescope and said excitedly: "Shan, can you come and see this telescope? The students just wanted to see it, but I didn't even show it!"

She was mainly afraid that the students would spoil her hard work over the past month.

Li Zexuan was very angry and funny, he said "um" and walked to the telescope.

He bent down slightly and put his eyes on the mouth of the eyepiece. There was no plastic in this era. The lens barrel was made of iron, and it was very cold to touch.

The direction and angle of the telescope seemed to be adjusted by Mo Lingwei in advance. Li Zexuan basically didn't need to make any adjustments.

I saw a big glowing ball in the eyepiece! There are some craggy grooves and rolling mountains looming on the sphere.

When Li Zexuan was a university student in the capital in his previous life, he went to the Capital Planetarium once. He remembered that with his student ID card, the ticket cost only ten yuan. There is a popular observatory in the planetarium, which has an optical catadioptric telescope with a diameter of 400 mm, through which the moon, planets, nebulae, and star clusters can be observed, and sunspots can be observed during the day. That time, Li Zexuan went there at night. It was the first time he saw the clear appearance of the moon with his own eyes. The shocking degree of it was far beyond what the pictures on the TV screen could compare to!

The telescope that Mo Lingwei is making now is naturally far less clear than the super-large astronomical telescope that Li Zexuan used in the planetarium in his previous life, but this is the Tang Dynasty! To have a telescope that can see the outline of the moon is already very hanging!

"Well, not bad! Although there are a few flaws, the flaws do not hide the good, it is worth encouraging, Miss Mo, congratulations on making the first astronomical telescope in Datang! Tomorrow I will help you to convince Mr. Mo to let him agree to your stay in Yanhuang. Academy!"

Li Zexuan watched for a while, then walked down and said to Mo Lingwei who was looking forward to the side.

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