Chapter 400: Invisible Pretense Is the Most Deadly
After completing the calculations for this new type of carbon composite material, there are less than two days left before the 21st New Year.
After bringing some data back to his place of residence, Xu Chuan was also ready to celebrate the New Year.
Due to the ban on fireworks and firecrackers here in Jinling, the flavor of the New Year in the city is far less intense than in the countryside.
But for him, it was already very satisfying.
The family had a reunion dinner together and watched the Spring Festival Gala. The days were dull and warm.
"Brother, do you think there will be life on Mars?"
After dinner, when the family was relaxing in the living room watching TV, Xu Xiao suddenly poked his head out of the other end of the sofa and asked curiously.
"Why are you asking this all of a sudden?" Xu Chuan asked casually without looking back, his eyes falling on the Spring Festival Gala sketches. With the withdrawal of the previous teachers, the Spring Festival Gala sketches were becoming more and more boring.
"Hey, the United States has landed on Mars." Xu Xiao handed over the tablet in his hand and said.
Xu Chuan turned his head curiously and took the tablet. A piece of news caught his eye.
[NASA’s “Perseverance” Mars rover successfully landed on Mars and sent back its first photo]
Seeing this news, Xu Chuan moved his fingers with interest and learned about the information in detail.
".According to foreign media reports, NASA's "Perseverance" Mars rover arrived at the red planet after a seven-month journey. It has successfully landed on the surface of Mars and captured and sent back the first batch of Mars images, becoming NASA's fifth rover. A rover successfully landed on Mars.”
"It is worth mentioning that due to the thin atmosphere of Mars and the long distance between the ground and the fire, the probe must complete the deceleration and landing independently, which is extremely difficult. Previously, NASA predicted that the probability of Perseverance landing safely was only 40%."
"In addition to gathering geological and climatic features of Mars to pave the way for human exploration, the Mars rover will also focus on astrobiology, the study of life throughout the universe."
"At present, the "Perseverance" has successfully landed in the Jezero Crater, which is about 45 kilometers wide in the northern hemisphere of Mars. NASA believes that this place once had abundant water resources, and hopes to use the instruments carried by the Perseverance to detect Organic molecules and other potential signs of microbial life may be preserved here."
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"Brother, do you think there were Martians on Mars before? Is there still life on it now?"
At some point, Xu Xiao came over from the other side of the sofa, nestled next to Xu Chuan and looked at the tablet and asked with interest.
Hearing this question, Xu Chuan shrugged and said, "I'm afraid you need to go to Mars to investigate in person to know this question."
"However, judging from the geological structure of Mars and past data, I think the probability that life exists or has existed on Mars is quite high."
"If its core does not cool, the magnetic field can protect the surface ecology, and there may be a chance to derive advanced life."
Xu Chuan had some understanding of the situation on Mars, but not much.
This is indeed a planet very similar to the Earth. The difference is that the metallic core of Mars has cooled, there is no flow of liquid iron, and the magnetic field has disappeared, causing the surface to become barren under the long stellar wind.
I don’t know if there was life in the first place, but it should be gone now.
Even if there are, it is estimated that they are at most some microorganisms, living in canyons, craters and other abyss areas where they can avoid the stellar wind.
Hearing this, Xu Xiao suddenly looked forward to it and said, "It would be great if I could catch a Martian and dissect him."
Xu Chuan: "."
He only said that the probability of life such as microorganisms existing on Mars was quite high, but he did not say that there were Martians.
And if there are really Martians on Mars, whoever dissects them won’t know yet.
After all, being able to hide it from being discovered by human civilization on earth shows that the other party's technology has reached a very high level.
But he didn't care, just thinking that the girl was imagining it, and asked with a smile: "How is your study going?"
Like him, this girl is also a talented player. Perhaps due to his influence, she successfully graduated from college in two years and has officially become a graduate student.
Speaking of this, Xu Xiao became interested and said excitedly: "Brother, our college and the McGovern Institute for Brain Science at MIT have jointly launched a 'brain wave data analysis project'. I applied to study, but I don’t know if I can be selected.”
"Brain wave data analysis?" Xu Chuan glanced at Xu Xiao curiously.
"That's right! It's the one you told me last time."
Xu Xiao nodded and continued: "It is to establish a complete database for human brain waves, then analyze these brain waves, and use brain waves to conduct human-computer interaction."
Hearing this, Xu Chuan touched his chin and asked with interest: "Are your two schools, Shuimu and Massachusetts? If I remember correctly, brainwave analysis should be a pretty huge workload, right?"
Xu Xiao: “Currently, it seems that it’s just our school and Massachusetts, but I heard that Peking University also wants to join in. I’m not sure about the details.”
After a pause, she remembered something, then she puffed up her cheeks and looked at Xu Chuan, complaining: "Brother, when I really got into this industry, I realized that you really screwed me up when you fooled me last time. Now I have fallen into a pit, no, fallen into a bottomless abyss and cannot climb out.”
Xu Chuan smiled and said, "How could that be? I'm not you. I never cheat anyone."
Xu Xiao ignored him, sighed and continued, "It's too difficult to use brain waves to do human-computer interaction."
"There are many types of brain waves, such as 'Human Active Neural Information Database' 'Brain Wave Information Molecular Imaging Database' 'EEG, ERP, fNIRS, Ecog Neural Information Database' and so on."
"To make a complete analysis of these things, the difficulty is no less than the Human Genome Project."
"Although the technology of converting human physiological information into recognizable program data sources through sensing chips through algorithms and equipment is now very popular."
"For example, smart watches and smart phones can monitor human data by counting steps, calculating blood pressure, and detecting heart rates."
"But the signal conversion of brain waves is really not of the same order of magnitude as the above."
"Although obtaining brain waves is very Easy, but it is too difficult to read and identify with high precision. "
"Unlike the obvious fluctuations of electrocardiogram waves, the voltage changes caused by brain waves are in the order of microvolts. Such a small voltage change is difficult to detect, and the external signal noise (signal noise) is very easy to interfere with the reading of brain waves. "
"Not to mention the interference caused by head movement, facial muscle movement, and the stability of the contact piece are quite serious for the reading and identification of brain waves. "
"Even the difference in air humidity will interfere with it"
Listening to Xu Xiao's complaints, Xu Chuan couldn't help but smile and said, "If it were easy, these problems would have been solved long ago, why wait until you come?"
"Besides, if there is no difficulty, why study it?"
"Just like climbing a mountain, conquering an ordinary mountain and conquering Mount Everest are completely two different levels and feelings. "
Xu Xiao glanced at him sideways, and just wanted to complain, but then he remembered his brother's brilliant achievements, and suddenly he didn't want to talk.
Invisible pretense is the most deadly.
Damn, with such a brother, her pressure is really great.