At dinner time, the family sits at a round table and eats.

Yan Xue is also among them, she is eleven years old, and people outside regard her as the third lady of the Qin family.

Zhu Wan suddenly said: "Adi, according to the method you said, I have been constantly screening for penicillium, and I have recently found three strains that have an inhibitory effect on staphylococcus." ”

Next, we need to use corn syrup to cultivate Penicillium, add toluene acetic acid to the medium, and then irradiate it with ultraviolet light to induce mutations and screen out strains with high yield!"

Qin Ling asked in surprise: "Can ultraviolet rays induce mutations?"

Qin Di nodded and said, "There is a Fensen lamp in Denmark, which is an ultraviolet lamp, which can treat lupus and skin diseases. Finson won the Nobel Prize in 1903. However, ultraviolet rays are harmful to the human body, and it is also harmful to bacteria, it can shear DNA, cause mutations, and cause cancer, so people in the laboratory should be reminded to be careful when using ultraviolet lamps, and not to be exposed for a long time. ”

Zhu Wan said: "Then hurry up and buy a few." ”

Qin Di smiled: "I bought it a long time ago and piled it up in the warehouse." ”

Historically, the initial penicillin yields were low, with only one or two units of a milliliter solution. One unit is equal to 0.6 micrograms.

It wasn't until 1941, when the Americans found the strain from moldy cantaloupe, that it was raised to 40 units per milliliter. Later, after continuous upgrading, combined with large fermentation tanks, 500 cubic meters at a time, up to 100,000 units per milliliter, so penicillin became less and less valuable. In the 21st century, China has become the leading producer of antibiotics.

Qin Di didn't dare to think that 100,000 units of strains would break the sky with 5,000 units this year!

Historically, in 1944, researchers at the University of Wisconsin, irradiated Penicillium with ultraviolet light, obtained 2,500 units of the strain.

Although Qin Hancheng didn't know about penicillin, he was happy when he saw his wife and children, and he was happy.

Qin Yue is seventeen years old, she is very smart, three points more beautiful than her sister Qin Ling, she is going to go to college after the Spring Festival.

At the dinner table, Qin Hancheng asked her what she wanted to learn.

She opened her mouth and said, "Dad, I want to choose the Department of Literature." ”

Qin Hancheng was noncommittal, in his opinion, girls can study anything, there is no need to study medicine, it is good to study medicine, but like Zhu Wan and Qin Ling, they are busy every day and rarely stay at home, which is not a good thing.

Zhu Wan said: "St. John's University has a literature department, I will go and talk to the dean, and you can go in and study." We, the Qin family, donate money to the school every year, and we can't donate money in vain. ”

Qin Yue smiled: "Okay, good!"

However, Qin Di said: "The years ahead are turbulent, and literature is not a good choice. ”

Qin Yue put down the dishes and chopsticks and asked, "Brother, why?"

Qin Di said: "I'm afraid that if you get involved in a dispute, you will be imprisoned!"

Qin Han was anxious: "How can there be a prison sentence?"

Qin Di sighed: "Unless you write about the wind and snow, it is easy to have an accident." In the dream, there are vague motherly tears, the city head changes the king's flag, endures to see his peers become new ghosts, and angrily looks for small poems in the knife bush. ”

Qin Yue's eyes lit up and said, "This poem is good." Brother, tell me carefully, what can happen?"

Qin Di said: "Either be assassinated or put in prison." Either the evening is bleak, or it is far from the homeland. ”

Qin Yue was shocked when she heard this: "Brother, don't scare me." ”

Qin Hancheng was over forty years old, with a beard under his chin and a fine trim, shaking his beard at the moment, and persuading: "Ah Yue, otherwise you should study medicine." ”

Qin Yue shook her head: "I can't see blood, I faint when I see blood, and I don't like to contact patients, so I can't say a few words to them." ”

Zhu Wan said softly: "Why don't you go to study theology and come out to be a pastor?" Or science or science, come out and become an engineer?"

Qin Yue had a bitter face: "I'm poor at math and can't do arithmetic, how can I choose science? I don't want to open my eyes and talk nonsense, so I can't choose theology." ”

Zhu Wan glared at her: "Hmph, the pastor preached, why are you talking nonsense with your eyes open?" Then she reached out and drew a cross on her chest: "Lord, please forgive her, because she doesn't know, only your words are true......"

Qin Yue stuck out her tongue and didn't dare to say any more.

Qin Ling remembered that Qin Di had said that his sister had many disasters in her life, so she said to Qin Yue: "It's no problem for you to choose literature, but there is a condition, if you write an article in the future, show it to us first." We agree to publish it, how about it?"

Qin Yue blinked and said, "Okay, I agreed." However, she was thinking in her heart: "I just promised for the time being, and when I graduate in the future, will you be able to follow every day?"

Qin Di knew her thoughts, and said: "Actually, it's not a big problem for you to publish an article, as long as you don't practice it, just use a knife and a gun." ”

Qin Yue said in surprise: "I'm a literati, why do I use a knife and a gun?"

"It's hard to explain this matter!" Qin Di understood in his heart: the general trend of the world is mighty, like a huge oven, making people struggle inside.

The road to the rejuvenation of the Chinese nation is destined to be a mighty avenue, just like the endless Yangtze River, which is easy to overturn small wooden boats, making many people pay blood and sweat, including accidental injuries again and again!

Qin Yue is as pure as a piece of paper today, and she will be involuntary when the time comes.

Qin Di didn't want to interfere with his sister's freedom, but he didn't want her to be harmed, so this matter made him feel embarrassed.

He thought about it for a long time, and finally decided to let his sister choose her own path in the future.