v4 Chapter 739： Text, code, base sequence

A person's life is short, but a group of life can last forever.

It is unimaginable to record information in the genetic fragments of an organism.

"These base sequences should have been written down artificially, and there should be nothing wrong." Fang Yuan observed the meteorite microorganisms in the glass ball with his abilities, and waves were surging in his heart.

"Aren't bases a string of molecules? How can you be sure that it was written by man, not formed naturally." Niu Dazhi turned his mind and began to think about this serious question seriously.

"Ignorance really limits your imagination." Eve shook his head and sighed, an expression of hatred for iron and steel.

"I'm thinking about the problem seriously, can you not affect my thinking?" Niu Dazhi glared at her with bull's eyes.

"Let me ask you, how many Chinese characters are there?" Eve turned to the topic as soon as he turned.

Niu Dazhi shook his head and replied with a natural look: "Who would remember this stuff if nothing happened."

"I will, my Chinese teacher used to teach you Chinese since you were a kid, but you didn't even know it." Eve stared with an annoyed expression.

"It's impossible for normal people to know." Niu Dazhi shot her up.

"Youwei tell him quickly." Eve began to pull Han Youwei to help.

"The "Cihai" contains 14,872 Chinese characters, the "Kangxi Dictionary" contains 47035 Chinese characters, and the "Xinhua Dictionary" that we usually use contains 8,500 Chinese characters." Han Youwei reported a series of data.

Eve stared at Niu Dazhi, looking very proud.

With a wave of his hand, Niu Dazhi directly commented: "She is not a normal person, not counting."

After a while, he remembered the topic just now, and then came back: "No. Don't change the subject. What I wanted to say was how to know that the bases in the gene sequence are arranged artificially? Maybe it is naturally formed. It."

Eve turned his face aside with contempt, and hummed: "Youwei, come and tell him that I don't want to talk to this guy."

"You said it yourself, why do you always let me say it." Han Youwei murmured.

Eve was under the table, pulling Han Youwei's fingers with her hand, and whispered: "Say it, you say it, you say it."

Han Youwei shook her head helplessly, organized the language, and began to explain: "Okay. According to my understanding, if a DNA sequence is used as a code to record information, it should be a quaternary code.

"Our computers use binary codes. Mathematically speaking, quaternary codes can record twice as much information as binary.

"Binary requires four digits to record information, and quaternary requires only two digits to complete.

"The double gap is actually not that big, so if you use biological genetic sequences to record information, there should not be much difference in the encoding method used.

"Meteorite civilization, we temporarily call this civilization that records information in the microbial genetic sequence a meteorite civilization.

"Meteorite civilization certainly does not use Chinese characters, but no matter what characters are used, the function of expressing emotions and thoughts will not change.

"In other words, the meteorite civilization writes their language in the genetic sequence of the microorganisms with a quaternary code, so we can make some speculations about the text encoding of the meteorite civilization based on our language characteristics.

"Everyone knows computers, and you should know that a Chinese character occupies two bytes. And one byte, replaced with a binary code, is actually 8 digits.

"In other words, in our computer code, a Chinese character requires 16-bit binary digits to represent it.

"We have tens of thousands of Chinese characters, but in fact, 1,000 commonly used characters cover 92% of written materials, and the remaining tens of thousands of rare characters are rarely used.

"These rare characters are not usually used, but they must be left in the code.

"This has led to these codes representing rare characters that rarely appear, and the 1,000 commonly used characters will appear repeatedly.

"I don't know what the characters of the meteorite civilization are like, but the characters and language should have similar characteristics.

"These characteristics will affect the arrangement of the base codes. When certain code fragments appear repeatedly, they conform to the characteristics of the text code, and it may be the text left by the meteorite civilization."

Niu Dazhi was stunned for a moment: "Why do you know every word? I can't understand it even when you are connected."

"It's fine if you don't understand it, you just have to have a strong sounding feeling." Eve was very satisfied.

Niu Dazhi seemed to be unable to find a reason to refute, so he approached Fang Yuan and asked, "Is there anything left by the meteorite civilization? What did they say?"

Fang Yuan was a little speechless, put down the glass ball in his hand, and said, "If I look at it, I will know what the meteorite civilization left behind, it must have passed through it.

"Even if this thing is known to be a text message left by the meteorite civilization, it still needs to be deciphered by a supercomputer."

...

When the few people returned to the East China Sea, it was already midnight.

I originally wanted to go straight to the Institute of Biology and report the hidden text information in the genes of meteorite microorganisms.

However, no one went to work in the Institute of Biology most of the night, so they had to go home separately.

When I got home, it was already ten o'clock in the evening.

Fang Xiaozhu has been driven back to sleep.

Fang Zhenguo was still watching TV in the living room, and the TV sound was very small.

"I'm back, the kitchen has reserved food for you, do you want to eat?" Fang Zhenguo asked without looking back, his eyes fixed on the TV.

"I came back after eating." Fang Yuan put on his slippers and lay down on the sofa next to him. Stretch out.

"What did the report tonight say?" Fang Zhenguo turned his head and asked.

"It mainly refers to the crisis facing the earth and the challenges facing mankind. The purpose is to motivate students to study hard, make progress every day, protect the earth, and fight for the future of mankind." Fang Yuan replied.

"Are there gains?" Fang Zhenguo continued to ask.

"Okay."

Fang Yuan replied, being quiet for a while, suddenly sitting upright, and said: "Old Fang, don't say I don't take care of you, I have a shocking discovery, or let you report it. Let you get a chance for meritorious service, or pass it. My military rank surpassed you in two days, how embarrassing."

Fang Zhenguo's face turned black when he heard this, and he said solemnly: "If there are important things to be reported, please follow the formal procedures and be serious!"

"The genetic sequence of the meteorite microorganisms hides the textual information left by that civilization. After finishing talking, I will go to the Institute of Biology tomorrow, and you can report to the headquarters. I will go to bed first." Fang Yuan got up and yawned. Room walk.

Fang Zhenguo's eyes widened after hearing these words, and he was stunned for three seconds, then jumped up quickly, put on his military uniform, and walked out quickly.