Open an aircraft carrier to fight against Japan

Mendeleev couldn't help being furious when he saw Lin Yuan's disdain when he mentioned the periodic law of elements that he had painstakingly studied for decades. Like a child, he gets angry because of a little thing, and after he loses his temper, he forgets about it.

Mendeleev said angrily, "Do you know what the periodic law of elements is?"

Lin Yuan smiled and said: "Is there anything I don't understand, isn't it that different elements have similar properties? Arrange these elements according to certain rules to form a periodic table of elements, and you are not the first The person who created the periodic table of elements, your periodic table was drawn on the basis of the predecessors!"

Mendeleev said: "Since you know what the periodic law of elements is, and you also know that other people have arranged the periodic table of elements, I believe you should know the greatness of my periodic table. My periodic table is not only for human beings. The elements are arranged in their positions, and some gaps are left in the table to guide later people to discover new elements."

Lin Yuan smiled, and Mendeleev still looked disdainful when he saw Lin Yuan, so he said, "Let me tell you something. In 1875, a French scientist named de Bowapo De Lan, when he was analyzing the zinc mines from the Pyrenees with a spectrum..."

Mendeleev stopped suddenly and asked, "Do you understand the spectrum?"

Just as Lin Yuan was about to speak, Mendeleev said: "You must not understand, well, don't pretend to understand! Let me tell you what a spectrum is. All kinds of light actually have colors. After passing through the prism, the angle of refraction is different, so you can use the prism to separate the combined light. The separated light is the spectrum. Different elements emit different colors of light when they burn. Through spectral analysis, we can know a certain object What elements are it composed of?"

"When this scientist was analyzing the spectrum of zinc ore, he accidentally discovered two very obvious purple lines. Then he applied extremely complicated chemical purification methods, and finally obtained a brand new element. He put this The element is called 'gallium', which is also the name of the mine, and he calculated that the density of the simple substance composed of this element is 4.7 kilograms per cubic meter, and then his discovery was published in the Journal of the Paris Academy of Sciences, listen This name shows how authoritative this newspaper is.”

Speaking of this, Mendeleev said proudly: "Do you know? Based on the periodic law of elements I discovered, I believe that the density of this element should be between 5.9-6.0. I told Deutsche about my opinion. Bois Poudran, he purified this element again, and finally found that the density of this element is 5.94. Have you seen it? This is the power of science. If this world really has the ability to predict the future, then there is no Doubt, I am the greatest prophet!"

Lin Yuan smiled lightly and said, "Haven't you ever thought that the foundation of your periodic table of elements is wrong?"

Mendeleev asked: "What do you say? Why do you say the foundation is wrong?"

Lin Yuan said: "Let me ask you, what is the basis for you to arrange the periodic table of elements?"

Mendeleev said: "It should be the atomic weight of the element atom and the chemical properties of the element."

Lin Yuan smiled and said, "Okay, let's talk about the atomic weight of the atom. How do you get the atomic weight of the atom? Could it be done by using a balance and weights?"

Mendeleev smiled disdainfully: "The atom is so small, how can it be weighed with a balance? The atomic mass we use now is relative weight, based on oxygen, and the atomic mass of oxygen is set as one. By taking the ratio of the different substances that react with oxygen, you then get the weight of this atom relative to the oxygen."

Lin Yuan nodded and said, "Well, since this is the case, are you so sure that the weights of oxygen atoms and oxygen atoms are the same?"

Lin Yuan's words caused everyone to laugh, and Nicholas II said: "Although I didn't understand what you said earlier, Mr. Lin Yuan, I can hear something wrong with this sentence. It is the same oxygen atom, why are the weights different?"

Mendeleev said: "See, even laymen can see that your remarks are ridiculous. Of course, the weight of oxygen atoms is the same!"

Lin Yuan smiled slightly, and then said, "Then let me ask you, what is the smallest thing in the world? In other words, what is everything in this world made up of?"

Mendeleev said: "This problem has been explained as early as 100 years ago. The smallest constituent of this world is an atom!"

Lin Yuan smiled and said, "In 1803, Dalton's theory, right?"

Mendeleev nodded and said, "It seems that you still have some scientific literacy."

Lin Yuan smiled faintly, and said: "I can tell you clearly that the mass of oxygen atoms and oxygen atoms is not the same, so the weight you get using oxygen as a reference is not accurate. The specific reason is that I I don’t want to say more now, when you have the ability to open the atom, you will naturally understand what I mean.”

Lin Yuan finished speaking, ignoring everyone's surprised eyes, then nodded slightly to Nicholas II, and said, "We are leaving. Today's dinner, we are very happy. I hope we have the opportunity to have a dinner together again!" Then Glancing at Shen Wanqing and Wang Genbao, she said with a smile, "Let's go."

As Lin Yuan said, he led the two of them out, leaving a confused Mendeleev standing on the spot. After coming out of the hall, Shen Wanqing asked, "What did you say to Mendeleev?" What do you mean? Why are the weights of oxygen atoms different from oxygen atoms?"

Lin Yuan smiled and said: "Atoms have nuclei and electrons, and nuclei have protons and neutrons. Different atoms of elements have the same number of protons, but different numbers of neutrons. That's why I say that oxygen atoms and oxygen atoms have different weights. Yes, these are called isotopes in modern science."

"In this era, isotopes had not been discovered, so they used the weight of the oxygen atom as the standard of relative weight. In our time, this standard was replaced by the carbon atom containing twelve neutrons, which is the middle school. The relative mass of atoms mentioned in chemistry."

Shen Wanqing nodded, didn't ask any more questions, but said with a smile: "That princess Ililovna asked me about a lot of things about you today!"

Lin Yuan smiled, and the three of them returned to the post house while they were talking. Just as Lin Yuan was about to return to his room, he saw Xu Jingcheng standing in front of his door. Xu Jingcheng had been sent to the West when the Qing government purchased the Dingyuan and Zhenyuan ships. , so he is familiar with European affairs, so Lin Yuan took him with him.

Lin Yuan thought to himself: "It's so late, why is he standing outside my room without sleeping? There must be something important." So Lin Yuan stepped forward and asked, "Master Xu, it's so late, why are you doing this?" Why don't you go to rest?"

Xu Jingcheng said quickly: "Master Lin, I also want to sleep, but I just got a message, and I can't sleep anymore."

Lin Yuan hurriedly asked, "What's the news?"