"It's ok. Ran Ziyi replied.

Ran Jingyi said: "My brother is humble, he was admitted to the high school of Jizhong with the first place in the city, and now he is basically the first in every exam." ”

"So powerful?" Feng Lang did not hide his appreciation for Ran Ziyi in his eyes, "Come, see if you are interested in this?"

Feng Lang brought Ran Ziyi to a screen and clicked on the screen a few times.

"Quantum mechanics?" Ran Ziyi only glanced at the content on the screen, and immediately said these four words.

Ran Jingyi said: "I have heard of quantum mechanics, but I can't learn it in middle school textbooks. ”

"If you don't have a related career, you don't need to deliberately delve into quantum mechanics, just understand it. Ran Ziyi wanted to roughly explain quantum mechanics to Ran Jingyi, but as soon as he raised his eyes and saw Feng Lang here, he was suddenly embarrassed to speak, what if he was playing a big knife in front of Guan Gong.

"I really feel like I'm taking teenagers to a science museum. Feng Lang couldn't help but laugh, "Then cousin, do you want to know about quantum mechanics?"

"Okay. ”

"Since I'm taking teenagers, then I'll start the teen mode," Feng Lang clicked on the screen, and a few simple summaries of quantum mechanics appeared on the screen, making it clear at a glance.

Of course, quantum mechanics is such a thing as a few books, let alone a few paragraphs.

After reading the simple explanation of quantum mechanics, Ran Jingyi was half confused: "Then how can quantum mechanics be applied to real life?"

That's a good question, and the FOIT Lab has been working on this for several years. Feng Lang said, "In order to make you understand more thoroughly, let's first play arithmetic to answer." ”

Ran Ziyi and Ran Jingyi's eyes lit up, and they looked like they were already worshipping Feng Lang.

"What is 4 times 6?" Feng Lang asked.

“24。 The two of them said in unison.

"What about 14 times 16?"

The two siblings still said almost in unison: "224!"

"144 by 166?"

Ran Jingyi hesitated at this time, but Ran Ziyi quickly replied: "23904." ”

"1444 by 1666?"

Ran Jingyi completely shut up, and Ran Ziyi thought for nearly half a minute before she said the answer: "2405704." ”

"The computing power is not bad. Feng Lang praised Ran Ziyi again, and Chi Qiongying was very proud of his son.

In order to prevent Ran Ziyi from finding out the calculation rules, Feng Lang changed a string of numbers: "16434 times 15433?"

"......" Ran Ziyi finally couldn't speak, "I have to ask for paper and pen to forget it......"

Feng Lang entered this string of numbers into the computer on the screen, and before he could press the equals, he heard Chi Li behind him speak-

“253625922。 ”

The bite of each number of Chi Li is exceptionally clear.

Feng Lang pressed the equals sign, and the content that appeared on the screen was really the string of numbers that Chi Li said.

The four people on the screen all looked at Chi Li with surprised expressions.

Coincidental?

In order to confirm whether it was a coincidence, Feng Lang said: "19674 times 18523?"

“364421502。 ”

Still correct.

Sealed waves:

"1887379927787273892100083774687183892993889 17736629639861?"

"1887379927787273892100083774687183892993889 multiply 17736629639861?" Chi Li repeated, tilting her head, "I can't figure it out." ”

"......" Feng Lang himself was not sure that he could repeat the calculation just now.

What kind of monster is the person you fancy Brother Xun?

Is this to show off arithmetic ability or memory?