psychochemist

Chapter 414 Looking at the Mirror of "Fate"
The law of success is extremely simple, but simple does not mean extremely easy.

Yirui took the telescope from Chaofan and said, "Okay, I have to clean this telescope quickly, and try to see if it works tonight. It feels like I haven't used this telescope for a long time, and the lens is getting blurry. I put Take it apart and wipe it for a try." After that, Yirui was about to dismantle the telescope.

Yu Fan hurriedly stopped Yi Rui and said, "Yi Rui, the telescope is not maintained like this. Don't try to clean the inside of the telescope or disassemble the telescope. The telescope is actually very complicated. It can only be adjusted on the instrument. As long as the telescope is disassembled, its optical axis will change, so that the images of the left and right tubes will not overlap, which makes people's eyes uncomfortable, and in severe cases, it cannot be used at all."

Yirui was a little surprised and said, "Wow, brother, do you understand this? Then what should I do? By the way, what's your name?"

Yu Fan introduced: "My name is Yu Fan, and the lady next to me is Guo Na. When you clean the telescope, don't use other ordinary cloth to wipe the objective lens or eyepiece, you should use the velvet cloth or other soft cloth that comes with the telescope bag to wipe the telescope. Eyepiece and objective lens. When removing residual dirt or stains, do not use clean water, you can drop one or two drops of special telescope cleaning fluid, preferably with a cloth, because it is not easy to control the amount. After you use Don't put it upside down after finishing, put the telescope upright, and don't put the eyepiece down, because some parts are coated with lubricating grease, and some places are also designed with oil storage tanks. If you put it upside down for a long time or the weather is too hot, it may flow to Where it should drip." Yu Fan explained in detail.

Yirui said with great admiration: "Wow, Brother Yu, you know a lot. Are you also an astronomy enthusiast?"

Yu Fan shook his head: "No, I sometimes come into contact with some telescope manufacturing companies in my work, so I happen to know some of them."

Yirui: "It's amazing. Brother Yu's job must be very interesting. You can see a lot. My future job also hopes to be this kind of job that can be seen and learned a lot."

Yu Fan smiled and said, "Then you can consider becoming a policeman. Haha,"

Yirui showed an incredulous expression again and said, "Brother Yu! How do you know? Didn't you say you can't read minds? My dream is to be a policeman, because my brother is an excellent policeman."

Yu Fan: "Haha, I actually don't know your dream. It's just that since I got in touch with a few police friends, the things I encountered have opened my eyes."

Yirui smirked and said, "Hee hee. By the way, just now you said that you need to use special cleaning fluid for cleaning the telescope, but I don't have it here."

Yu Fan: "Generally, the formula for cleaning liquid for telescopes is 92% trichlorotrifluoroethane (dry cleaning agent) and 8% ethanol. If you have these substances here, you can make your own special cleaning liquid for telescopes."

Yirui said helplessly: "Ah? I don't have any of these weird things. Besides, I haven't studied chemistry yet. I haven't heard of these things you said."

"Yes! It's in the master's showroom." Suddenly, a very cold and hoarse voice came out of nowhere!

This made Yu Fan and Guo Na tremble in fright. They turned around and saw an old man in black standing behind him. His back was a bit hunchback and he was very short, about 1.6 meters in height. There were wrinkles on his face. , written full of traces of the years, giving people the feeling of vicissitudes.He touched a plastic box in his hand, and it stood there like a dead tree.

"Grandpa Xi, why are you here?" Yi Rui said enthusiastically, "Oh, by the way, this is our housekeeper, Grandpa Xi Hongli, and we have always treated him as family. These two are invited by Grandpa Our guests, Brother Yu Fan and Sister Guo Na." Yi Rui introduced.

Xi Hongli smiled gracefully, and said hoarsely, "Thank you, young master. You are all distinguished guests of the master, welcome."

Yi Rui then asked: "Grandpa Xi, what are you doing here? Shouldn't you be helping Grandpa make rice noodles right now?"

Xi Hongli: "I was indeed helping the master with the kitchen just now. But the guests in the 'ground wing' (the wing on the right) wanted us to provide some entertainment activities. I found them according to their requirements. I will give them to you later. After they send it over, I will go to the master's showroom to get trichlorotrifluoroethane for you." Xi Hongli's voice was still cold.

After all, Xi Hongli continued to walk forward with the plastic box in his arms.With the vibration, there was a crashing sound in the plastic box, which sounded like mahjong.Who would play mahjong in such a quiet place?Don't worry about spoiling the atmosphere?
After Xi Hongli walked away, Guo Na asked Yirui curiously: "Has this Grandpa Xi of yours always been the housekeeper for your family? He looks a little gloomy and weird."

Yirui nodded and said: "Yes, Grandpa Xi has been with our family for almost 20 years. He and my grandfather were comrades-in-arms when they were young, and then he was called by my grandfather to help my family because of His daughter."

Guo Na: "Because of my daughter?"

Yirui: "Well, Grandpa Xi's daughter is a very beautiful young lady who is more than ten years older than me. But she has been suffering from some serious illness. After my grandfather found out, he invited Grandpa Xi to live with us. It is quiet here. It is suitable for recuperation. Grandpa Xi agreed. During the period of time when the young lady came to us, she often took me to play, and taught me to recite poems and play flying flower orders. She is a very gentle and knowledgeable young lady."

Guo Na: "That's great, where is your sister now? Is she also in the manor?"

Yirui said with a desolate expression: "Well... To be precise, she is still there, but she is not there anymore."

Yu Fan asked curiously, "Did something happen later?"

Yirui: "The year before last, when I came back from summer vacation, I found out that my little sister had passed away. I asked my grandfather what was going on, but my grandfather told me not to ask, and didn't say anything. I thought it might be because my little sister's illness suddenly broke out. Well... Hey, what a pity. I saw that she was fine before I went to school. Grandpa Xi's voice became hoarse from then on, and she looked very cold. In fact, Grandpa Xi is still very warm-hearted and gentle in essence. Yes. Now, Miss Sister is buried in the back mountain of Ruogu Villa. It takes 10 minutes to walk from the back door of Ruogu Villa. I sometimes go to her grave to recite ancient poems with her and play with "Flying Flowers" make'."

Yu Fan said apologetically, "I'm sorry for bringing up your sad past."

Yirui showed his sunny side again, and said, "Oh, if my young lady sees me so depressed, she will definitely be unhappy too, so I must be happy."

What a kind child, Yu Fan was just about to say something when he saw Xi Hongli staggering towards him from a distance with two medium-sized glass bottles in his hands.

　A person's greatest bankruptcy is despair, and a person's greatest asset is hope - Trichlorotrifluoroethane

　　
　
(End of this chapter)