What a little bald head who forgets his friends when he sees sex! Hao Ning despised Liu Shuai in his heart, and continued, "That's right, after discovering this phenomenon, many physicists didn't believe it, because it doesn't make sense logically, and it's also different from what we encountered in reality. The experience is completely different.. So Schrödinger cited a famous thought experiment, Schrödinger’s cat.”
Speaking of this, all eyes looked at Hao Ning from all directions, even Long Fei, a Ph. right?"
"That's basically what it means," Mr. Ren nodded with a smile. "Some small details, such as what the so-called observer is, etc., are too cumbersome and can be understood without going into details."
In fact, I also know so much, Hao Ning was happy, you asked me to explain, I really can't explain, seeing that I can fool the past, so he continued: "This Schrödinger said, if there is such a black box, there is a black box in the box. A cat, and a bottle of poison, and then there is a radioactive element, as long as it decays, the bottle of poison will kill the cat through the mechanism, if it does not decay, the cat is alive."
"What is decay?" This time it was a small question.
"Uh..." Hao Ning couldn't make a joke with Xiao, scratched his head and thought for a while and said, "You can simply understand it as a special change, which has a characteristic, and you will know that it will change in a period of time—such as It might come within a week, but when exactly it will come, no one knows."
"It will come within a week, but no one knows the specific day of the week..." Xiao frowned and said subconsciously, "It sounds like my aunt...".
"Ah? Hahaha..." Hao Ning and Long Fei were taken aback for a moment, and then laughed out loud. Isn't it true that the aunt is expected to come every month, but I can't be sure about the exact day. Hao Ning Laughing and admiring, "Little you are so talented, I have read so many versions of the explanation, and for the first time I explained the key factor here as my aunt's. Instead of this, what kind of Schrödinger's cat is it? Didn’t Schrödinger’s aunt directly understand?”
She blushed. After all, she was a girl and a doctor, so she would naturally think of the parts related to herself.
"Okay, Hao Ning, keep talking." Liu Shuai urged Hao Ning when he saw that he was embarrassed.
"Understood." Hao Ning has seen through Liu Shuai's essence of emphasizing sex and despising friends, "Now that everyone understands this small detail, let's think about a question: This aunt—no, this cat, because the one in the black box is not Knowing when the radioactive element will change and will be poisoned to death by poison, then the question comes, I ask everyone, at a certain point in time, is the cat alive or dead?"
"Huh?" Liu Shuai was stunned for a moment, "How could this be known? If this aunt comes, oh no, the radioactive element has changed, and the cat is dead. If it hasn't changed, of course it is alive. So the cat has It could be alive, it could be dead."
"Good point!" Hao Ning nodded, "Then how can you know if the cat is alive or dead?"
"Isn't that simple?" Liu Shuai felt that Hao Ning was an idiot, "Open the box and see what's going on?"
"Hahaha, that's right!" Hao Ning laughed, "This is Schrödinger's cat experiment."
"What experiment?" Liu Shuai was a little confused again, "No experiment at all? Isn't this normal?"
"That's right, it's understandable for you to think that way," Hao Ning nodded, and continued to ask, "But if you think about this experiment, it actually means that when you, the observer, did not observe the cat in the box, the cat There are two superposition states of living and dead, but when you start to observe this cat, the two superposition states of this cat will become one state. This is the quantum mechanics experiment I just mentioned , with and without observers, the experimental results are different. This is what Schrödinger wanted to explain."
"It's well said," Mr. Ren nodded, and looked at Hao Ning approvingly, "It's very easy to understand, and it can explain the key points. If you write a popular science chapter, it should be very good."
"Uh..." Hao Ning thought to himself, if the old lady found out that not only did she not write popular science chapters, but also wrote some novels about gods and ghosts, she didn't know what she would say. So he just smiled modestly and didn't speak.
"It's so interesting!" Xiao was a bit unsatisfied, and continued to ask, "Is there anything else interesting?".
"This—" Hao Ning lowered his head and thought for a while, then asked a question with a smile, "Do you know what the fastest speed in the universe is?"
"I know this," Liu Shuai nodded. This is what he learned when he was a child. "It's light. There is no faster light." It doesn't count."
Hao Ning knew what he meant and nodded: "Yes, but quantum mechanics has a quantum entanglement phenomenon that seems to be a special case, because even if the two entangled quanta are far apart, the state of one quantum changes, and the state of the other quantum changes. It also changed accordingly. It is said that this speed is 10,000 times that of light.
"Why—" Xiao opened his eyes wide, with a look of incredulity on his face, "This is completely different from what the teacher told me when I was in high school. The teacher told me that there is no thing that can exceed the speed of light."
"This..." Hao Ning scratched his head, he couldn't tell the truth that he was wrong, so he had to ask the audience outside the venue to help the old lady Ren.
"It's terrible for young people," Mr. Ren saw Hao Ning's embarrassed face, and nodded with a tolerant smile, "Although some things are wrong, they are generally correct. Don't embarrass Hao Ning, what he said It is indeed true, but the speed is different from what you understand. But—” Mr. Ren turned his head and looked at Hao Ning, “Teacher, I have to correct one point, it’s not that the speed of quantum entanglement is 10,000 times faster than that of light, but that the speed of quantum entanglement is now What can be detected is at least 10,000 times that of light."
Hearing what Mr. Ren said, Liu Shuai and Xiao were even more surprised, but they still didn't ask.
"You don't need to ride a horse or drive a boat. You can travel around the world in a short while, and the stones will be rotten and the pines will be withered for an autumn." Mr. Ren suddenly recited a poem softly, "This is a poem about immortals in an ancient novel. It’s our ancient gods, who arrived anywhere in an instant, much like the principle of quantum entanglement. Of course, all the particularities of quantum mechanics only exist in the microcosm, and our macrocosm is far less magical.”
"The world will arrive in a moment..." Liu Shuai's heart stopped when he heard it, and he couldn't help but feel a little sad. This is a poem describing Yunzi, and it is also Zhang Quan, who he had a big fight with two days ago. He has never recognized his father until now. .
"Hey, old woman, you are fine with everything," Chen Lao shook his head, "It's the idea of confusing reality and legend. Modern science is modern science, so how can it have anything to do with myths and legends?"
"A lot of legends are very useful for reference," Mr. Ren shook his head, "You are considered an open-minded person, why can't you get over this? I am in the process of quantum science research, and I am very suspicious of this quantum observer effect, and There is some relationship between the generation of human consciousness—many great scientific conclusions are bold assumptions.”
"Okay, here we come again." Speaking of Chen Lao's expertise, Chen Lao became more energetic. "Modern medicine has proved that human consciousness is formed by the synapses of the human brain..."
"Synapse, synapse, you can't get over this hurdle—" Mr. Ren interrupted Mr. Chen impatiently, "How can this simple study on the physical level explain the differences in human consciousness?"
"That's because—" Mr. Chen opened his mouth, but was interrupted by Mr. Ren again, "Old Mr. Chen, old lady, I will ask you the simplest question today: You said that consciousness is through the synapses of the human brain. If you know the composition and current state of every molecule and atom in the human brain, as well as the transmission law of bioelectricity, you can know what this person is thinking now, and his What will you do in the future?"
"This...Of course—" Mr. Chen was stunned by the question.
"This question seems to be a paradox?" Xiao Xiao thought carefully, "It seems that if we really know the entire composition of a person's brain and how the brain works, through high-precision calculations, like formulas, we know this What a person is thinking now, and what he will do in the future, but how is this possible? I don’t even know what I will think in the future, or what I will do in the next moment, so how can others know?”
"This, um, this..." Mr. Chen was obviously thinking about this issue too. Although he was studying the neurological direction, he was more pragmatic in solving specific problems. As for such ultimate problems, it was not their main direction of thinking.
"What is this?" Mrs. Ren was a little annoyed, "It doesn't make sense, and I'm not allowed to assume the reason. You said that you, an old professor, are living in the past as you get older, and the more you live, the more closed you are. You are a closed country. !"
"I closed the country?" Mr. Chen himself was blocked by this question without an answer, and he became angry when he heard it, "Ok, okay, I closed the country, you reform and open up, you reform your reforms, and cross the river by feeling the stones! "
"It's quarreling again..." Hao Ning felt helpless, but he really didn't know how to persuade him. One is not familiar with the two old people after all, and the two old people have made great achievements in their respective fields. If you rush to persuade , based on the eloquent "speech" I gave in front of these people just now, the two old people will probably allow themselves to judge, how can I judge this reason? At this time, Hao Ning probably understood why Mr. Ren was teaching at the university in Pingjing, while Mr. Chen was in Chang'an. The two had such a bad temper and disagreed academically. It was a miracle that they could stay together for a day. I know how two people have come together for so many years.
"Grandpa, grandma—" Xiaozheng was about to persuade the two old people, but a man's voice came from behind him, he looked back and smiled politely: "Cousin."
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