After lunch, Wang Li still had to go on a business trip, and Meng Yue went to his favorite Songfeng Hall to buy a pen because of the tip of the pen, and then he wanted to go back. The pen ~ fun ~ pavilion www.biquge.info didn't want to, so I finished buying the pen, came out of the Songfeng Hall, and walked out not far away, and was stopped by an assistant professor of the Academy of Sciences.

"What, something?"

"Assistant Teacher Meng couldn't leave, and it happened that I was about to come out, and Assistant Teacher Meng asked me to bring a sentence and tell Miss Meng to go to the Academy of Sciences quickly. ”

Meng Yue pondered for a moment, but she didn't know what it was, but Old Man Meng called, even if she didn't know the reason, she had to go this way: "Okay, I'll go now." ”

handed over the pen and ink she bought to Bai Rui and asked her to send her back to Meng Yuan, while Meng Yue took Xia Jiang to the Academy of Sciences. When she arrived at the Academy of Sciences and saw Master Meng, Master Meng didn't even let her shout "Dad", so he said to her: "Come every year, look at this string of lights." ”

Meng Yue walked to the large generator that had just been built and the electric lights that were hung up in series, and looked up, some of them had blown up the filament, and some had directly blown up the glass: "How did you blow it up?"

"When I tried it, the power was not well controlled. ”

"Oh, Daddy, what are you looking for me for?"

"Look at it every year. ”

Meng Youyi Meng's words, carefully looked at the tungsten lamp that had turned off the current, and took a closer look to find the problem: "The tungsten filament has melted away!"

Those who blew up the filaments did not blow up the filament, but some of the filaments melted away, and only a small amount of broken tungsten filament fell under the lamp. Why did the tungsten filament melt away, Meng Yue probably knew that it should be high heat and oxidation, which made the already fine tungsten filament melt away, and the one that did not melt became slag.

"We originally thought it was because the electricity was too large to burn, but then the current decreased, and the filament of the electric light still melted away. "Once the tungsten filament melts off, the rest of the lamp can easily fall off, so you only need to look twice at the filament to see it all.

Because the light bulb at this time was not like the incandescent lamp that Meng Yue had seen, the tungsten filament was properly hooked and fixed with a filament, but a bent U-shaped, suspended in it, no matter where it melted, it would cause all of it to shatter. Meng Yue had seen an incandescent lamp anyway, although she hadn't looked too closely, but she still knew what tungsten filament looked like in an incandescent lamp.

However, it really has nothing to do with what the tungsten filament looks like, the main culprit is too high temperature, followed by oxidation, and these two reasons complement each other - I have taken physics classes in junior high school and high school for six years, although I have lost too much, it is not difficult to remember this. When Meng Yue was a child, her family still used incandescent lamps, so she remembered that the temperature of the bulb was very high, and even the later energy-saving lamps would be hot, and this problem was not solved in the era of LED lights.

LED lights are cold lights, just to say that the light of LED lights does not carry heat, but the LED lights themselves still emit heat. According to the poor physical knowledge that Meng Yue remembers, no matter what kind of lamp, the reason why it will heat up is because the passing electrical energy is not fully utilized, incandescent lamps only use a few percent, and LED lights are tens of percent, and the remaining electrical energy will be converted into heat and dissipated.

"As for why the passing current can't be lowered...... I really don't know about this, anyway, what about him, the problem that has not been solved more than 100 years after the advent of electric light is too unscientific to raise at this time. Moreover, she also knew a little bit about it, and she really didn't dare to mislead the science fanatics.

So Meng Yue could only rack his brains to help think about how to deal with the two troubles of oxidation and high temperature: "Dad, have you ever tried how high the tungsten filament melts?"

The academicians had just come up with the lamp, and they really didn't have time to study it here, so even if a teaching assistant tried it, it turned out that the tungsten filament would melt away without a very high temperature. After discovering the reason, the academicians fell silent, because they had known for a long time and had always wanted to solve the problem of lightning shining through the filament, but it was not easy to solve.

Meng Yue: At times like this, please come with me to open the Complete Records of Taizu's Manuscripts, and turn to page 1355, where it records the composition of the atmosphere that Taizu wrote about and what the air that humans breathe consist of, and what the components are used for.

After 1,000 pages of manuscripts, they all belonged to the twilight of Taizu's years, and he paid more attention to various technologies in life, so he wrote them down, which was considered by many people to be of little use. But in fact, the more time goes forward, the more obvious the importance of those contents after a thousand pages.

For example, the atmosphere and air.

"The Complete Records of Taizu's Manuscripts, naturally, everyone has a copy, I'll get it. ”

Academicians and teaching assistants did not only take one copy, but also went to the nearest one, and then read it carefully, from 1355 to 1360, Taizu was willing to use a full five pages of A4 paper to write and describe the composition of the atmosphere, the composition of the air. The concept of vacuum was also proposed, and it was pointed out that various phenomena such as rusting of iron were caused by exposure to air.

As for which ingredient caused it, Taizu did not write about it, probably hoping to let the natives discover it for themselves. Although Taizu was worried, he did not take care of everything and write everything clearly, but left some key points unwritten, and let the natives explore and explore, wrestle, and then get up and figure it out by themselves.

Meng Yue smacked his lips, and once again sighed that Taizu had a broken heart all his life, and then there should be nothing to do with her here, with the skills of scientific maniacs, during the Shangyuan Festival, it may not be possible to solve the fundamental problem, but the task of illuminating the noon gate should not be difficult to complete. As for how to solve the problem of high temperature and oxidation of electric lamps in the future, it should take a while to explore, which has nothing to do with Meng Yue......

She thought it was related, but she wasn't a physics student, so she really didn't understand it.

"Ah, yes, I have to ask Chen Sui, the author of "Heart Says", where to find it. "The Theory of the Heart" is the book that Meng Yue thinks is closest to the works of modern psychology after careful reading. So she went out and came back, looking for academicians and assistant students to ask Chen Sui.

"Dr. Chen is a doctor of Taixue, and Miss Ah Meng can see him when she goes to Taixue. "Taixue is the Son of Heaven Seal holiday, and the Son of Heaven has opened a pen and a class, so Meng Yue can also find someone if he goes now.

As soon as he heard that it was Taixue, Meng Yue was relieved, Lu Kunlang was also a doctor of Taixue, and Taixue was only a few doctors. The Taixue of the Ming Dynasty was subordinate to the Guozijian, and all the grandchildren of the county and county princes above the fifth grade and the great-grandchildren of the third grade could be enrolled, but there were many private academies in Nanjing, and there were not many of them, and a few doctors and dozens of assistant teachers were enough.

Meng Yue didn't go directly to Taixue, but went back to Changpingli, because Lu Kunlang only attended half a day of classes, and it was bound to be in Qingyuan at this time, and it was much more feasible for Lu Kunlang to be introduced by Lu Kunlang than for her to go directly to Taixue to ask for a meeting.

With "Psychology" Chen Sui, other people will also be found quickly, in this way, can psychology, a branch that is actually affiliated with medicine, be established to speed up the establishment and avoid the current situation of high suicide rate in the future?

PS: The suicide rate of Chinese people has always been high, but psychological counseling cannot be popularized, one is that there is no such habit, the other is ashamed to talk about their inner problems, and the third is that there are very few psychologists and psychological counselors in China.

PPS: With one hand in the Spring Palace and the other hand to establish psychology, Miss Ameng's life is quite fine!