Maoxiang took the opportunity to ask Huang Xiao for advice on some things he didn't understand.
Huang Xiao learned from Zhu Youxiao that Zhu Youjian had joined Maoxiang's team. Only then did he know that there was Maoxiang, one of the four great princes in the late Ming Dynasty, in the team.
Huang Xiao relied on his knowledge to answer them one by one.
Maoxiang learned by analogy and quickly solved his previous problem. He truly admired the knowledge of the wise king in his heart.
When asked about the light bulb, Huang Xiao hesitated, "This is a bit difficult, but the filament inside is easy to solve. It is a metal called tungsten, which is found in chemistry books."
Maoxiang and others nodded.
"Sir, since we can solve the problem of filament, and our Dahuang Village can also produce it..."
All the students nodded, and some were thoughtful.
Huang Xiao smiled but didn't answer.
Maoxiang suddenly shouted: "Yes, after the filament is lit, it will emit light and heat. If the bulb is filled with air, I'm afraid it's inappropriate. Is that true, sir?"
Fang Yizhi also said: "And this glass should also be different. If it is not heat-resistant, there is a possibility of bursting!"
Zuo Maodi pondered for a moment and said: "When we use an oil lamp, black soot will be produced on the lampshade. Since the filament will heat up, will it also produce black soot? But I saw that the one brought by my husband did not have this phenomenon. , could it be that I guessed wrong?"
The other students also expressed their thoughts in a variety of ways.
Huang Xiao smiled and said, "Good questions, classmates. Let me explain in general. As Maoxiang said, when the light bulb was first invented, people discovered that the filament would be burned if it did not emit light for too long. , and if the quality of the glass is not good enough, there is indeed a risk of bursting, so people later switched to heat-resistant glass."
"In view of the situation that it will be burned out in a short time, some people have made improvements to remove all the air and make the inside of the bulb a vacuum. In this way, the tungsten filament can shine for a long time. However, due to technical reasons, if it is not exhausted, the bulb will The glass wall will appear black, and if there is too much oxygen inside, it will easily burn out the tungsten filament, causing the bulb to be damaged and unusable!"
"Later, people discovered that filling it with some special gases can effectively avoid this situation, and the service life becomes extremely long. These gases are called inert gases. You can go back and check the records in the book yourself. .”
…
Huang Xiao simply analyzed the problems one by one.
Maoxiang sighed: "The student thought that this little light bulb should be very simple at the time. Who knew that it would require so much knowledge, and the difficulty is not low. It's the student Meng Lang. From this point of view, it really can't be done in a short time." The research and development was successful, but now that we know the principle, as long as we are given time, we will definitely be able to make it!"
Huang Xiao smiled and said: "Scientific research is about overcoming difficulties one after another. As long as we maintain our passion, we will always gain something! We still have a lot of time, step by step, and one day, everything we want in our hearts will come true!" "
Everyone saluted in unison.
"Thank you sir for your teaching and encouragement!"
At this moment, Liu Lin led someone into the room.
The leader is naturally Liu Lin, in addition to Wu Village Chief Ju Huaniang, Zhu Yujian, Zhu Youjian, and an old man in his sixties. There were five people in total.
Everyone came in and saluted.
In Zhuangzi, anti-theft drills were held inexplicably, which naturally could not be hidden from Zhu Yujian. In addition, he and Zhu Youjian lived next to each other. When Liu Lin came over, he also came with Zhu Youjian.
All the students were also curious.
Huang Xiao thought about it and didn't avoid everyone. It was considered a live teaching.
Huang Xiao walked to the desk with the brightest light next to the desk lamp.
He put the two desks together.
"Everyone, in the evening today, some villains sneaked into Nongwu Village in an attempt to do harm to our Ming Dynasty. After preliminary judgment, it was the work of stubborn officials and gentry. They resisted the new policy and wanted to continue to suck the blood of the people. Your Majesty and I learned that Afterwards, everyone was extremely angry!”
Huang Xiao clarified the matter and spoke out.
Fang Yizhi, Zuo Maodi and others were furious!
Zhu Yujian was also shocked and angry. He did not expect that he would encounter such a thing not long after arriving.
Huang Xiaochao said to the students: "You students are all people with lofty ideals in our Ming Dynasty. I want to let you know this because I want you to understand that behind the people living and working in peace and contentment, behind this happy life, there are cruel struggles. , as time goes by, there will always be people who bear the burden and move forward! I hope you and others can use what you have learned in your mind to strengthen our career! The monsters and monsters who will destroy everything!"
All the students saluted solemnly.
Huang Xiao sat down and said wisely to Fang Fang: "Secretly, bring some pieces of white paper and pencils over."
Fang Yizhi took it immediately.
Huang Xiao spread it on the table and said to the old man, "Old man, come sit here and talk."
The old man didn't dare again and again.
Ju Hua Niang shouted: "Master tells you to sit down, so you can sit down. Why are there so many vain people? Don't waste Master's time in the middle of the night!"
The old man sat down fearfully.
Juhua Niang introduced: "Young Master, this is Old Man Liu from our Nongwu Village. He is a sheepherder. We all call him Liu Sheepherd. It is he who met that man today."
Huang Xiao smiled and said, "That's right. Village Chief Wu is right, business matters first!"
Everyone was impressed by Huang Xiao's approachability and smiled slightly.
Huang Xiao asked: "How old is that person? How tall? Do you think he has a similar figure to everyone else?"
Liu Yangguan said: "More than 20 years old."
He looked around, pointed at Maoxiang and said, "He is about the same height as this student."
Huang Xiao nodded.
"Did you notice anything different?"
Liu Yangguan thought for a while and said hesitantly: "After he passed by, I smelled the smell of green onions and ginger on his body. At that time, I came back from herding sheep and was hungry. I smelled this smell and I remember it clearly."
Huang Xiao hummed.
Chrysanthemum Lady and Zhu Youjian's eyes lit up. They had already guessed that this person was probably hiding among the cooks outside.
Juhua Niang glared at Liu Yangguan angrily, why didn't you tell me about such an important situation earlier?
"Okay, come on, I'll try to see if I can draw it."
"What are his eyes like?"
…
Everyone was very curious and excited.
The King Xian wants to investigate the case on the spot and draw a picture to arrest it, but can he draw it?
Huang Xiao had studied sketching and had a good foundation. When he took the high school entrance examination and entered high school, his overall results were not very good, so he decided to become an art candidate.
Despite his request, his father complied with his wishes.
After studying for two years, he didn't know why, but his cultural classes also improved overall. In the end, he didn't take the art exam. Instead, he passed the college entrance examination and successfully passed the second level.
However, this craft can be regarded as learned.
Later, after graduation, his job was not going well, and he was deceived into buying a course to study graphic design. The reason why he was deceived and cut off was also related to his art background. If not for this, he probably would not have bothered.
Later, he taught himself graphic design and picked up sketching. He would draw when he was bored, which was considered a small hobby.
