Traveling Through the Republic of China, I Fought Against the Japanese in the Rear

This one. Much better than last time, Europe is about to start a war. I took more medicine. You can replace the aircraft and artillery. Find Germany to exchange a large number of machine tools. Industrial mother machine. The general selling point information is for Germany. Don't let them lose so quickly. We can start recruiting overseas students back. This time. The miracle drug 💊aspirin. It is extracted from willow bark through chemical methods. The main steps are as follows: Extract salicin: wash, sterilize and cut the willow bark into small pieces, soak in water and heat to boiling, remove or filter after about 20-30 minutes. Continue to heat the solution to concentrate, stop heating when white crystals appear, cool and filter to obtain crude salicylic acid. Conversion to salicylic acid: Treat salicin with dilute sulfuric acid or sodium hydroxide to obtain salicylic acid. Acetylation to produce aspirin: Salicylic acid reacts with acetic anhydride to produce aspirin through the acetylation process. Historical background: Aspirin was extracted and promoted from willow bark by the German company Bayer and has become a widely used drug around the world. In 1934, Felix Hofmann told the world that he and he alone had invented aspirin. At that time, Germany was under Nazi rule, and the persecution of Jews was becoming increasingly severe. Therefore, he was evasive about the fact that he synthesized aspirin under the guidance of his Jewish boss, Arthur Eichengreen, and even made mistakes and took all the credit. The credit was given to Felix Hoffman, and Arthur Eichengreen was even imprisoned in a concentration camp in order to shut up his mouth. In 1949, Arthur Eichengreen, who had escaped death, had no idea who was the "real" inventor of aspirin. It was only widely used in 1952.

After reading Chapter 200, I still haven't seen what I wanted to see, and I just feel a little frustrated. The next few dozen chapters are always arguing with a group of people, saying this doesn't work and that doesn't work. Tired of watching. As a person who reads light and refreshing articles, I can't stand it anymore, but I persisted until it reached 200, and it's not easy to give it five stars.

It's okay. Although the original owner smoked a lot of cigarettes, there's nothing special about it. But in the early stage, he was still too dependent on others.

The time span of the Chongqing bombing... The core time range is from February 18, 1938 to December 1944, of which large-scale indiscriminate bombing was concentrated from 1939 to 1941. The bombing was divided into three stages: 1 2

It's really great. Although some parts are unrealistic, at that time, it was basically the only way to write.

It's very beautiful. I was so happy when I saw it [laughing evilly][laughing evilly][laughing evilly]

Realistic, basically logical, nothing outrageous. We have seen the Battle of Nanjing. It would be great if we could change history.

Who says that this book does not conform to historical logic? I seem to have seen this comment. It obviously follows history, right? I should say it or not, but this book is slowly becoming mesmerizing, and I wish I could be in it!

Super nice book

The regrets in my heart can be filled in the world in the novel.

It's okay, it's a little buggy but not a big problem. The update is a bit slow.

I finished the chase overnight, it's pretty good, but I don't know what to do at work tomorrow [cover face][cover face][cover face]

Not bad, really good, come on, author!

Personally, I feel that I should write more details so that people can form a picture in their mind when they see the content.

It's wonderful and the story is rich in content.

Good! No system, no space. It all depends on the family property and wives I earned! A role model for our generation! [Like] For those who are disgusted by the sight of women, look at the cover, there are many female protagonists! Many heroines! Many heroines! Very well written. There is writing and logic! It looks like hand-made penicillin, which is a bit ridiculous. But there are many videos online of people rubbing guns with their hands. There are also electronic dogs, amphibious vehicles, gliders, etc., All handmade by the private sector. Everyone can do it. Why can't the protagonist do it?

Good books are worth promoting [Like][Like][Like][Like]

Well written and true,

The most important thing about penicillin is freeze-drying technology, which can be directly made into powder for easy storage, otherwise it will lose effectiveness over time.

Li Jiajia's analysis of demons and ska, divorced, hometown, animal world, group pull, cool me

It's really good, but not passionate enough.

Nice! Nice! Nice! Nice! Nice!

Yes, the logic is clear, not exaggerated, and not systematic.

The representative work of the time-travel version, beautiful,,,

So far, the plot, content, rhythm and characters are very attractive.

A good novel set in the World War II era. Good luck to the author!

Looks good, the logic makes sense

Well written and vivid plot

Very good, very good, come on

Super nice. I like this one very much.