psychochemist

Chapter 252 Phosphorus Sun

If there is no light in the world, then you will be the shining sun.

what! !Yu Fan was so stunned by the sudden strong light that he couldn't open his eyes!All this is too surprising, what is going on?Is it a flashbang?The thief inside threw a flash bomb and wanted to run away?

Yu Fan instinctively blocked the door with his body.

After a few seconds, the light gradually weakened, and Yu Fan observed through his fingers that the glowing object seemed to be a sphere, about the size of a football.The light was dim, and Yu Fan could see more clearly that the luminous body turned out to be a large flask.

How is this going?Yu Fan was full of doubts.

"Isn't this less than? Why are you here?" The voice was full of magnetism and peace. Isn't this voice just...

Yu Fan questioned: "Wu...Professor Wu? Dean Wu?"

The curtains of the room were pulled open, and Yu Fan took a closer look, and it was indeed Dean Wu. Yu Fan was finally relieved, let out a long breath, and made a false alarm.

Dean Wu: "Yu Yu, why are you here?"

Only then did Yu Fan realize that he was actually the one who came to visit recklessly, and Yu Fan said, "Oh, Dean Wu, I'm sorry to bother you. I'm shopping for New Year's goods on Kangfu Road today, which happens to be closer to our Jiaotong University. So I came over for a stroll."

Dean Wu smiled kindly and said: "Comrade Yu is really dedicated to his work. He has to work until the last moment before going back to his hometown."

Yu Fan pursed his lips shyly, and replied, "Dean Wu, you too. The school has been on holiday for a long time, and you are still doing experiments in the laboratory? What kind of experiment is this? The light just now was so dazzling!"

Dean Wu pointed to the big flask on the lab bench and said, "I'm preparing for the next semester's lab class."

Yu Fan walked over, took a closer look at the big flask, slapped his nose with his hand, took a sniff, and said to himself, "Phosphorus?"

Dean Wu compared his thumbs and exclaimed, "Good nose."

Yu Fan: "Phosphorus pentoxide produced by burning phosphorus has a garlic-like smell. Dean Wu, what novel experiment are you planning?"

Dean Wu: "Recently, I found that young people are more and more interested in exciting things. The experiments I did in the past were too old and nothing new, so I am going to redesign an experiment with great visual impact." Said Come on, Dean Wu pointed to this set of experimental equipment.

Yu Fan took a closer look and found that the experimental device was actually very simple, that is, an Erlenmeyer flask was connected to an air duct, and then connected to a large flask.Yu Fan rested his chin in thought, mumbling words: "Such intense light must be a violent reaction of phosphorus, so that Erlenmeyer flask is a device for producing oxygen?"

Dean Wu nodded with great satisfaction: "Spirituality, what's next?"

Yu Fan took a closer look at the Erlenmeyer flask, and there were still some black solids in the bottle. Yu Fan understood immediately, clapped his hands and said, "It's hydrogen peroxide. You added manganese dioxide to the hydrogen peroxide, and then water and oxygen were formed. , the oxygen enters the large flask through the airway."

Dean Wu went on to say: "That's right, then I used a burning spoon to ignite a little phosphorus and put it into a large flask. The reaction between phosphorus and high-purity oxygen would emit a dazzling light, just like a sun, especially in the Doing this experiment in a dark place, the effect is more obvious. In this way, the students will definitely be impressed."

Yu Fan secretly admired it. In fact, the principle of the experiment is very simple, but what is admirable is that this old professor can tirelessly study how to make the experiment more interesting and easier for students to accept.This is something that teachers of professional courses do not easily do.The experts and professors in the universities that Yu Fan has contacted now prefer to spend their time on applying for research projects, because they can get money.There are even fewer scholars who settle down to do research.

Professor Xiang Wu, who has strong professional ability and is willing to spend time researching teaching methods, is even more rare.Yu Fan really admired him in his heart.Dean Wu has firmly grasped the psychology of the students, so he is deeply loved by the students.

Dean Wu looked at Yu Fan kindly, and asked: "Yu Yu, you are a young man, please help me choose a cool name for this experiment. Choose a name that young people like, which will also deepen the understanding of the students. impression."

Yu Fan said with trepidation: "Dean Wu, how embarrassing this is. How can you, my junior, dare to name your work?"

Dean Wu laughed loudly and said heartily: "Science has no size, and chemistry has no level. It is not easy for you to do such a thing at such a young age. Besides, this is actually a simple experiment. Come on, help me." If you think of a name, help me."

Seeing Dean Wu's sincere request, Yu Fan couldn't refuse anymore, so he touched his ears and thought, "Well... I thought it was a sun when I came in and saw it for the first time. Now Knowing that this sun is made of phosphorus, why not call it the 'phosphorous sun'?"

Dean Wu clapped his hands and exclaimed: "Good! This name is good! It can also intuitively describe the characteristics of this experiment (like the sun), and it can also make everyone remember the element phosphorus, which is wonderful and cool! Less than is really amazing Wonderful idea."

Yu Fan scratched his head shyly.

Dean Wu: "This name is really good, Phosphorus Sun, combining phosphorus with the sun, maybe the students will think of this experiment when they see the sun in the future. They will be more impressed. And this name can also Tell the students a truth about being a human being.”

Yu Fan raised his eyebrows and asked with great interest, "Oh? What is the principle of being a human being?"

Dean Wu said earnestly: "The phosphorus sun is the sun we made ourselves. If there is no sun in this world, we can become the sun ourselves!"

Yu Fan was a little puzzled, and said, "How can there be no sun in this world? Isn't the sun always there?"

Dean Wu: "That's not necessarily the case. The sun in the sky also alternates between day and night. People walk in the world for a lifetime, and the same is true. People will always get lost in the dark sometimes. We will encounter unfair treatment and we will be ridiculed by fools. , we will be slandered by a bunch of scumbags. We tried to convince them, but in the end we will find out that they are playing the piano against the cow, and they will always be villains hiding in the dark. So what should we do? If the place we walk is full of shadows, Why don't we just make our own sun! Light up these darkness!" Dean Wu became more and more excited as he spoke, his words were like a rainbow.His demeanor also changed from the kind and easy-going one just now, and became energetic.

Yu Fan was stunned for a moment. Professor Wu's words completely caught Yu Fan's mind. He didn't expect that the seemingly elegant and gentle Dean Wu would suddenly become so passionate.Yu Fan had mixed feelings in his heart, and his feelings were very complicated. He wanted to extend his hand to applaud Dean Wu's impassioned speech, but he put down his hand again.

Dean Wu seemed to see Yu Fan's bewildered expression, so he returned to a kind and peaceful state and said, "Haha, I'm sorry, I want to imitate the feelings of you young people, and it scares you, doesn't it?"

Yu Fan and Dean Wu looked at each other and smiled knowingly.

　The sun's brilliance is due to its great inner enthusiasm, not the reflection of external light-phosphorus pentoxide
　　
　
(End of this chapter)