It has been quite hot these past few days, and I even felt a bit suffocated after staying in the laboratory for a long time.
Except for a few countries in East Asia, fans are not used very much or rarely in other countries. For example, in Europe, fans are mainly played by aristocratic ladies.
Maybe it’s because Europe is close to the sea and is cooler. The United States is full of immigrants from Europe, so it naturally inherits this tradition.
Therefore, it is now difficult for Li Yu and others to buy a fan.
Li Yu was sweating and said to Tesla who was calm and composed: "Aren't you hot?"
Tesla naturally said: "If you can keep your inner peace, it won't be so hot."
Well, he actually said indirectly, "A calm mind naturally cools down."
Li Yu took a notebook and fanned himself, "Calculating, he should be in ambush."
"Chinese medicine?" Tesla had never heard of the word "entering ambush".
Li Yu explained: "Dog Day means the hottest time of the year in Chinese."
Tesla said: "Your estimate is quite accurate. If you can't stand the heat, I happened to see a store selling electric fans that day. You can consider buying one."
Li Yu immediately put down the book in his hand: "I'm just saying, I can't be the only one who feels hot! I'm going to buy it right now!"
About twenty years ago, electric fans already appeared, but the design of the electric fans at this time was relatively simple and only had two blades.
That's better than nothing.
Li Yu's laboratory had no problem connecting to electricity. He placed it in the house and finally blew out the wind.
Konoe Akira, Xie Yuxi and Lu Bicheng were also attracted.
Lu Bicheng said: "It's so cool! A fan that can use electricity to create its own wind. Is this...an electric fan?"
"You got the name right!" Li Yu said with a smile, "Technology should change life and improve the quality of life like this."
Li Yu found that they were standing almost in the same line. Since he might not have used an antique such as an electric fan for a long time, he finally remembered that it could "shake his head".
But when I looked at the electric fan, I found that there was no such button.
Well, it turns out that the mechanical design of shaking the head has not yet appeared.
It was actually very simple to make it shake its head. Li Yu had nothing to do and quickly designed a mechanical structure that could shake its head.
Xie Yuxi was used to it. When he saw mechanical graphics appearing on the paper, he knew what Li Yu was going to do. Sure enough, it didn't take long for Li Yu to give her a drawing: "Follow it and you can apply for a patent."
Xie Yuxi smiled and said: "You also want to be an invention king."
Li Yu immediately worked with Tesla and others to create an electric fan that could shake its head.
Tesla said: "This will improve the practicality a lot."
But Li Yu is still a little dissatisfied: "If we want it to really enter thousands of households, we must at least improve the motor and increase the gears."
Tesla has never seen an electric fan that is easier to use in later generations, but if you think about it carefully, Li Yu's two points are indeed a good direction for improvement.
Tesla said: "I am better at motors, but I have no idea for the design of mechanical gears."
Li Yu said: "It's easy to talk about, just right for division of labor."
But before he could start his research, psychologist Cattell suddenly came to visit him.
Li Yu invited him to a special reception room and made a pot of good tea.
Since Li Yu bought most of the shares of "Science" from Cartel, the journal has quickly become one of the hottest science and technology magazines in the world. Especially, even the European scientific community has subscribed to the journal and started submitting articles. This is Something very difficult to do.
So Cattell is in a very happy mood: "Now the Association for the Advancement of Science devotes almost all its time to reviewing, publishing, and reviewing manuscripts, just like British or Prussian scientific journals."
Li Yu smiled and said: "This shows that we are an influential journal."
Carter took a sip of the authentic Chinese Tieguanyin and said: "So this is the taste that makes the British royal family fall in love with it. Can I buy some?"
Li Yu said: "I have quite a few here, so I'll give them to you. Not only are there Tieguanyin, but there are also Biluochun, Qimen black tea, Maojian, Lu'an Guapian, etc."
Cattell was confused when he heard this: "There are so many varieties."
Li Yu said: "What I mentioned is just the tip of the iceberg."
"Looks like I'm really lucky to be able to drink today!" Carter said, and then saw Li Yu's electric fan, "Hey! Where did you buy it from? Why have I never seen such a novel electric fan product? "
"I just designed it and I'm still improving it," Li Yu said.
"Interesting! If it can be put on the market, I will definitely buy one." Carter said.
Li Yu said: "Mr. Carter is not averse to new things at all."
"Of course," Cattell said, "I am a scientist who studies human psychology, and I often pay attention to the relationship between humans and technology. I have read many articles that intensely discuss the development of technology. For example, when the electric light first appeared, it coincided with The theory of evolution has swept the intellectual world, and some people have speculated that the day can last forever, sleep may evolve away, and humans will enter a new era."
What Cartel said is the truth. In today's world, there are countless cases of crazy application of the theory of evolution.
Many people believe that electric lights will cause humans to evolve to lose sleep.
Li Yu said with a smile: "You can't say that. Even if there is no electric light, you may not necessarily be able to sleep well. It can only be said that it can allow some people to realize the nature of work that reverses day and night, just like an owl, working at night and not working during the day. Sleep too.”
Cattell nodded: "Your point of view is very close to mine. I don't think electric lights can make humans evolve out of sleep. Because I once did a test on myself, turning on the electric light day and night, and then forcibly not sleeping, but I only lasted two days. One night, I couldn't continue to support myself. I found that not only did I become anxious, but my memory declined very seriously. It wasn't until I had a good sleep that the problem was resolved. So I think sleep is a great thing in life, how can it be evolved? reason."
This psychologist has quite an experimental spirit and conducts experiments on himself first.
Li Yu happened to remember that he had something to ask him, so he said, "Sir, he studies psychology. I wonder if he has done any research on human intelligence tests?"
"I actually did conduct research over the years measuring intelligence using human tests," Cattell said.
Li Yu said: "Great! I am also looking for a more authoritative and standard intelligence test method to verify that the intelligence of Chinese and other Asians is not inferior to anyone else."
In the past two years, Russia has been wildly promoting the "Yellow Peril Theory." After the war between Japan and Russia, this fallacy has attracted even more attention. Cartel was very smart and immediately understood what Li Yu wanted to express: "You must fundamentally oppose the Yellow Peril Theory."
Li Yu said: “Not only that, this is also an important way to achieve equality for humans in different regions.”
The St. Louis World's Fair held that year and the "Human Pavilion" at many previous exhibitions have already illustrated the problem.
Cattell pondered for a moment: "Although I have been doing research for many years, I found that intelligence testing is not an easy task. I cannot complete it alone. I must turn to more psychologists who are interested in doing research in this area."
Psychology is of course a rigorous science, not a metaphysics.
However, psychology does seem a bit mysterious and unfamiliar to most Chinese people. In the early years, it was even associated with words such as "mind reading", "mind control", and "hypnosis", as well as the feelings derived from them.
In fact, they only reflect one aspect of psychology.
Psychology is often associated with consultants and education, so intelligence testing is the research scope of psychologists.
However, any intelligence test you see on the Internet is the kind of "free IQ test" or "IQ test" that you can find, which gives many graphics to find patterns, etc., they are all fake!
The real intelligence test is very rigorous and scientific, and it can never be measured through a few graphic test questions.
The results of online intelligence tests are generally much higher, and they only serve to increase self-confidence.
Formal IQ tests are often expensive.
IQ testing services provided by some hospitals or institutions usually cost between a few hundred yuan and a thousand yuan.
The formal Wechsler adult intelligence test costs as much as 3,000 yuan in China.
These tests generally have to be completed at designated locations, and rarely pass online tests.
So don’t try to get the correct results through test papers found online.
It's a bit like being sick. When searching online, the result is often two words: terminal illness...
It’s better to go to the hospital honestly!
Li Yu didn't have any in-depth knowledge of psychology and couldn't help much. He asked, "Where can I find a psychologist with whom I can study how to test intelligence?"
Cattell said: "We need help from the Psychological Association. I am a member myself, and I can use your reputation to call on you this time."
Cattell is one of the founders and president of the American Psychological Association, and has been elected as the first psychology fellow of the National Academy of Sciences.
Li Yu asked: "My fame?"
Cartel said: "That's right! We happen to be going to Columbia University in New York. I heard you are very welcome there."
Li Yu had been to Columbia University before and helped Ding Long give lectures.
Li Yu was surprised: "Didn't you just say that you wanted to seek help from the Psychological Association?"
"Yes," Cattell explained, "we were looking for a psychologist who was also working on intelligence testing and was now a lecturer at Columbia University."
Columbia University is in Manhattan, very close.
Li Yu immediately drove him to Columbia University.
As soon as they arrived at the door of Columbia University, they met a black child who was hiding in the corner and watching several white children playing.
The white children saw an old man walking by holding a handful of balloons, so they ran over happily and each bought one.
The balloons were flying in the air and the children were happy.
This is a hydrogen balloon, which means it can fly to high altitudes on its own. It doesn't matter in later generations, but it was a very attractive toy at the beginning of the twentieth century.
Cattell said to Li Yu: "Don't you understand what psychology is? Let me demonstrate it to you."
Carter walked up to the black child and asked, "Do you want to buy a balloon?"
The black child glanced at him timidly, then nodded.
"Come with me," said Cartel.
The two came to the old man selling balloons, and Carter said to the old man: "Can you sell this child a balloon?"
The old man said, "Of course, what color do you want?"
The black kid had the courage to say, "I want a black one."
The old man immediately gave him a black balloon.
"Try to let it fly," Cattell said.
The black child let go of his hand, and the black balloon slowly floated into the air.
Cattell said: "Children, remember, whether the balloon can rise is not because of its color or shape, but because the balloon is filled with hydrogen. A person's success or failure is not due to race or origin. The key is whether you have confidence in your heart."
The black child's eyes suddenly lit up.
Cattell knew that he still needed to grow up, so he gave him a business card: "If you want to go to school like white children, you can come to me, and I can give you the same education as them."
The black child took the business card excitedly: "Thank you!"
"I'm waiting for news from you," Cartel told him.
After speaking, Carter walked back to Li Yu.
Li Yu saw it clearly: "Sir, are you going to do an experiment by the way?"
Cattell said: "Yes, it can be used as a long-term comparison to prove the intellectual issues you are more concerned about."
The cartel is still very rigorous, not only helping a teenager, but also serving as a long-term test subject.
The study of intelligence is actually a long-standing problem for psychologists. Even a hundred years later, there is still no truly and absolutely accurate intelligence test.
There are so many factors that affect intelligence, and the various aspects involved in intelligence are also complicated.
Most intelligence tests are actually biased towards logical and mathematical abilities. Although they do value intelligence, they are always one-sided and have almost no ability tests in liberal arts and art.
You can't just generalize and say that a musical genius or a master of painting is mentally retarded, right?
Even professional intelligence tests cannot be comprehensive, let alone those copycat tests on the Internet.
I remember that when I was in junior high school, Li Yu himself took the kind of test on the website. The process of waiting for the results was still thrilling. After all, everyone hopes that they are smart.
Why else would "idiot" be a curse word?
When Li Yu saw 146 displayed on his phone, he was so happy that he showed off that he was a genius everywhere.
Then other students also curiously took the test, and many of the results were 140+...
It’s just a stab in the genius nest!
It can only be a pleasure.
By the time Li Yu traveled through time, the concept of IQ was gradually being diluted.
This can be seen as a huge progress in pedagogy itself, which does not regard so-called intelligence as the only criterion for a student's excellence.
Not to mention that it is simply impossible to accurately obtain the intellectual results of all students.
To take a step back, even if you can really get it, so what? Abandon students whose intelligence tests are relatively low? Specially cultivate people with high intelligence?
This would lead us into the trap of absolutism again.
Of course, this is a later story. It will take many years for education to develop to that point, especially the degree of development of society itself is crucial.
In the early days, although intelligence tests had many negative effects, they still had some meaning.
But be sure to note that it is a double-edged sword, depending on how you use it.
(End of chapter)
