universal data

Chapter 13 The Raindrop Experiment
"Mom, can I discuss something with you?" Cheng Nuo rubbed Jiang Lan's shoulders attentively and said with a smile.

"What's the matter? Tell me!" Jiang Lan was in a good mood and nodded with a smile.

"Um... can you give me 200 yuan?" Cheng Nuo rubbed his hands and said, "The college entrance examination is coming soon. I want to buy some study materials."

"Really? Didn't you buy enough last time?" Jiang Lan asked doubtfully.

Speaking of this, Cheng Nuo felt a toothache.

Although Cheng Nuo's parents limited the promised consumption in terms of pocket money, Cheng Nuo's parents were not stingy at all in terms of learning.

Due to the times, Cheng Nuo's parents were not highly educated.Due to the reasons of the times, both of them have graduated from high school.So the two put all their expectations on Cheng Nuo.

As long as they spend money on study, Cheng Nuo's parents don't discount it at all.Even more than that.

Can you imagine Cheng Nuo's mood when he saw the bookshelf full of review materials?
At that time, he even wondered if he was their own!

"Oh, the teacher asked me to buy some materials this time." Cheng Nuo had already practiced the skills of lying without blushing and heartbeat.

Anyway, no matter what, just get the money.

What Cheng Nuo said was right.The reason why he asked Jiang Lan for money was indeed to buy some materials.However, it is not a study material.

As for Cheng Nuo's review materials, which he slowly piled up on the bookshelf, his own grandchildren might not be able to finish them.He also bought review materials, Cheng Nuo wasn't such a pain in the ass.

Cheng Nuo had his own plans for the 200 yuan.

Jiang Lan did not doubt the authenticity of Cheng Nuo's words. Since it was related to study, Jiang Lan took out 200 yuan from her wallet and handed it to Cheng Nuo without hesitation.

"Take it. If the review materials are not enough, I will go to the bookstore another day."

"No, no, no..." Cheng Nuo waved his hands, sweating profusely, "That's enough, these are enough."

"Okay, I'm off to study, you guys keep talking, keep talking."

Cheng Nuo quickly ended the topic and returned to the bedroom with the schoolbag.

"12 floors, 40.54 meters high, 62.48 meters long, 54.24 meters wide, covers an area of ​​3388.92 cubic meters, 36 households, 10 brightness..."

"Height 175.87 cm, weight 85.24 kg, vital capacity 4002...brightness 2..."

"Speed ​​54 km/h, weight 3214 kg... brightness 15..."

On the balcony, Cheng Nuo was wearing a casual hooded jacket, lying on the railing and looking at the city in the night sky with his abilities.

Even under the dark night sky, even some things that he cannot see with his own eyes can be turned into data and transmitted to Cheng Nuo's brain.It made Cheng Nuo feel like he had the whole world under control.

Cheng Nuo opened his arms and embraced the world.

Suddenly, a gust of cool wind blew, and the cold wind poured in from Cheng Nuo's neckline.

"Ah Choo! It's so cold, so cold!"

Cheng Nuo hastily closed the window and went back into the house shivering with cold.

"The wind speed is 8.7 meters/second and the temperature is 8.2 degrees Celsius." His own eyes gave Cheng Nuo accurate figures.

"Is it going to rain?" Cheng Nuo wrapped himself in a blanket and looked up at the moonless night sky outside.

The air humidity is 92.41%.

Seeing such values, Cheng Nuo estimated that it was probably going to rain.

Half an hour later, a spring rain fell from the sky.

"Volume 0.05 milliliters, weight 0.051 grams, speed 8.52 m/s..."

"Volume 0.06 milliliters, weight 0.059 grams, speed 9.54 m/s..."

"volume……"

Cheng Nuo lay on the bed and used raindrops to measure how many sets of data he could record at the same time.

Cheng Nuo finally came up with the answer - 100 groups.

At least for now.

Once this number was exceeded, Cheng Nuo's brain felt waves of dizziness.Cheng Nuo was worried that something would go wrong, so he resisted the thought of resisting dizziness and continuing to add more data.

For the current Cheng Nuo, being able to record 100 sets of data at the same time is enough.

...............

The next day, after a baptism of spring rain, Qingcheng faded away, and the city was filled with the fragrance of soil.

As soon as he arrived at the classroom, Cheng Nuo received Old Tang's call.

"Cheng Nuo, Old Tang is looking for you again." It was Jiang Qingqing who sent the message.

When saying this, Jiang Qingqing gave Cheng Nuo a surprised look.What the hell did Cheng Nuo commit?I was called to a class by Old Tang last night, and I still want to go today?

"Oh, Cheng Nuo, you're here, come here, come here first."

In the office, when Old Tang saw Cheng Nuo walking in, he immediately waved to Cheng Nuo with a smile.

Uh... Cheng Nuo paused.

Old Tang's attitude is really uncomfortable!

"Teacher, are you looking for me?" is still the familiar opening line.

"Come on, Cheng Nuo, come and take a look at this question." Old Tang continued to smile.

Cheng Nuo continued to panic...

"See if you can solve this problem?" Cheng Nuo took the problem handed over by Old Tang.I also complained silently in my heart.

Let me do this question directly last night, let me do it twice!

Although he was complaining in his heart, Cheng Nuo still picked up the question and started reading it.

"There are n≥2 line segments in the plane, any two of which intersect, and no third line segment intersects at the same point, Geoff picks an endpoint on each line segment and places a frog on this endpoint, the frog Facing the other endpoint, then Geoff will clap n-1 times, each time he claps, each frog immediately jumps to the next intersection of the line segment it is on, and each frog does not change the direction of jumping, Geoff The desire is to be able to place the frogs so that no two frogs land on the same intersection at any time:

(a) Prove: If n is an odd number, then Geoff can always realize his wish.

(b) Proof: If n is even, Geoff cannot realize his wish. "

A question that can be called difficult by Old Tang is definitely not a good problem.

Cheng Nuo was calculating in his mind, without any thoughts, pulled a chair, sat on the table in front of Old Tang, and started to untie.

Old Tang also watched Cheng Nuo's movements attentively.

Yesterday, because I didn't expect Cheng Nuo to be able to do it, I didn't pay attention to Cheng Nuo at all.

Now he wants to see if Cheng Nuo has become as genius as he imagined.

Cheng Nuo was writing and drawing on a blank piece of paper. Old Tang was like a student at this time, looking at every number Cheng Nuo wrote on the paper without blinking, and speculated that it was reasonable. sex.

At this time, other teachers in the math group also arrived one by one.

Seeing Old Tang staring at a student solving a problem with concentration, he asked with a smile, "Old Tang, did this student piss you off again?"

The teacher thought that the student should have made a very simple and childish mistake when doing the problem. Old Tang called him to the office and directed him to the steps of the problem.

………………

ps: The unit of brightness I use here is: sb (Xi Ti), and I will use this unit in the future.

(End of this chapter)