thefictionvixens Chapter 180
Chapter 180
"Ziban? That's exactly twelve o'clock."
In ancient times, people believed that mice came out from eleven to one in the morning, so this time period was called Zishi.
Changle nodded, looked at the three pointers on the painting and asked: "Su Chen, what are the functions of these three lines of different lengths?"
"Sit down, I'll tell you slowly." Su Chen dragged a chair from the side.
"Well!" Princess Changle sat next to Su Chen as he said.
"These three pointers, from short to long, are the hour hand, minute hand, and second hand. The second hand moves one circle, and the minute hand moves one grid. The minute hand moves one circle...
Hmm? That's not right! This should be in the elementary school math textbook!
Li Zhi, wait a minute, I'll find the elementary school math book."
Su Chen got up and looked for math textbooks in the study. The last time Su Chen gave Li Tai the junior high school math, he returned the elementary school math.
"Strange, Li Tai doesn't know clocks, why didn't he ask me?"
Su Chen quickly looked through the third and fourth grade math textbooks.
"Found it, Li Zhi, look at it, it's very clear." Su Chen took the third grade math and sat back next to Changle.
"Okay, I'll take a look first, don't talk!" Changle took the math book, lowered her head and read it carefully in a low voice.
Su Chen smiled, "I promise not to talk!" He turned his body slightly.
With his elbows on the desk, he supported his cheek with the back of his palms, watching Princess Changle who was reading attentively.
Su Chen stared at the person who was so close, and he was fascinated without knowing it.
After two quarters of an hour, Princess Changle suddenly turned sideways and looked Su Chen in the eye. "I've finished reading, you..."
"Lecher, hooligan!" Seeing that Su Chen had been staring at her, she cursed in a low voice. Pushing Su Chen's chest with her elbow.
"Ah! Princess, spare me! Have you finished reading?" Su Chen pretended to be in pain and begged for mercy.
"You don't look like you're going to lose any meat, so why are you a hooligan?"
"Humph! I've finished learning this chapter, you can test me."
Su Chen gave a thumbs up, "Your Highness is really talented!
In an instant, you learned such profound knowledge, no one in the world can do it... I admire you very much!"
Finding that Princess Changle's expression had changed, Su Chen immediately sat up and changed the subject, asking: "One hundred and thirty-five minutes, how many hours and minutes is it?"
"Two hours and fifteen minutes?" Princess Changle stretched out her little head, looked at Su Chen and answered uncertainly.
"Yes, Lizhi, you are really amazing!" Su Chen praised generously.
"Tsk, this question is too easy, you should ask a harder question."
Princess Changle raised her fist and put it on Su Chen's face, threatening: "If I can easily solve the answer, I will make you look bad!"
"A 15-year-old elementary school student dares to threaten my high school diploma?"
Princess Changle only learned mathematics in elementary school and has not started junior high school courses.
"Then listen carefully, assuming that our stride lengths are the same, we walk from the manor to Chang'an. You walk 45 steps per minute, and I walk 69 steps per minute.
I let you walk for 40 minutes first, how long will it take me to catch up with you?"
Su Chen looked at Changle and asked again: "Do you understand? Let me say it again?"
"No need, I will start answering the questions, don't talk!" Princess Changle raised her hand and ordered.
After thinking seriously for a moment, Princess Changle picked up a pencil and began to calculate on paper.
The way she held the pencil was the same as writing with a brush.
So the words were written very big. The other hand had to press hard on the paper.
Su Chen took a sneak peek, and when he saw the formula she listed, he had a bad feeling.
After Princess Changle finished the calculation, she looked at Su Chen and said, "Seventy-five minutes, that is, one hour and fifteen minutes later, you just caught up with me! Is the answer right?"
There seemed to be some expectation and some trepidation in her eyes.
She expected Su Chen to praise her, but was worried that her answer was wrong.
Su Chen understood what Changle was thinking from her eyes and smiled:
"Lizhi, your answer to this question is correct, and your solution is also correct, very impressive!"
No longer praising her jokingly like before, this time Su Chen had a correct attitude and praised objectively.
Changle was really happy to hear Su Chen's praise, "Hehe, this lady is amazing!" She raised her head slightly and looked at Su Chen proudly.
"Ah!"
Princess Changle screamed and touched her forehead with her hand.
"There is an error in your calculation. A bracket is missing." Su Chen raised his hand and tapped Princess Changle's forehead.
"Look, the correct answer should be:
45×40÷(69-45)
In the calculation, multiplication and division should be done first, then addition and subtraction. If there are brackets, calculate the contents first."
Princess Changle had a very positive attitude towards learning. She nodded and said, "Okay, I'll remember it and pay attention to it next time!"
After that,She hooked her finger at Su Chen.
"Hmm?" Su Chen didn't understand what she meant.
"Put your head over here!"
Su Chen followed her instructions and put his head over obediently.
Princess Changle stretched out her slender finger and imitated Su Chen, flicking his forehead three times.
"Fair! The other two are my reward, thank you!"
"Well, thank you, Princess, for your reward!" Su Chen bowed his head respectfully to thank her.
Princess Changle nodded with satisfaction.
"Su Chen, what is the name of this timekeeping object you drew?"
"This can be called a "clock" or a "watch", or a clock." Su Chen thought for a while and said.
"Clock?"
"This is not very useful. Will these three... pointers move by themselves?" Princess Changle asked naively.
"These three pointers can be made to move by themselves, but the current craftsmanship level of the Tang Dynasty is not up to it. "Su Chen said with regret.
It is understandable that he cannot make an electronic clock.
But the old-fashioned spring pendulum clock is all his fault. He has never seen the structure inside, otherwise he could draw it with his painting skills. I believe that Li Tai will be able to make it in a few months.
"You have created many objects that have never existed before the Tang Dynasty. I believe you will be able to make it in the future."
Princess Changle saw that Su Chen was getting a little depressed.
She gently put her little hand on Su Chen's wrist and comforted him.
"With the popularization of education, it will definitely be made in the future. I am not in a hurry for this."
Su Chen said with a smile, and took Changle's little hand in his hand, and continued:
"When there is a chance, I will definitely make you a watch and wear it on you personally."
"Watch?"
"Yes, watch, I will draw one for you to see. "After saying that, he let go of Changle's hand, picked up the pencil and started to draw quickly.
Su Chen turned his head slightly, glanced at Princess Changle, smiled knowingly and continued to draw.
Princess Changle held her chin with one hand and looked at Su Chen. "This scoundrel, he's quite good-looking when he's serious."
After drawing for a full quarter of an hour, he finally finished the painting.
"Tsk, this painting is not up to standard! Damn it, damn it, I haven't given her anything serious yet!"
Suddenly, an idea came to Su Chen, and his eyes lit up. Overjoyed!
"Xiao Le, the rivers and lakes need help, show up quickly!"