Nowadays, the level of science and technology is very low, so most of the intelligent scientists are well-versed, and they are involved in mathematics, physics, chemistry, etc., unlike the development of science to a very high level in later generations, almost all inventions require a large team to study.

The hydrogen airship made by Bo Jue is getting bigger and bigger, and it is getting more and more complex, which involves many aspects of research, although it is not so profound knowledge of aerodynamics to be studied backwards, but things like the shape of the airship, high-altitude air convection and other things must be known, especially when it is clear that the ground is blowing the south wind, but the goods need to be transported to the south, which has to consider what height the airship will fly to control, for these things, in order to facilitate the use of the airship in the future, it is necessary to make certain data charts, This matter is more troublesome, so Bo Jue handed over this matter to his small team, and he himself has changed the direction of his research.

In fact, this change in research direction was also caused by an accident, in order to solve the problem of the speed of hydrogen production, Bo Jue constantly experimented with putting some conductive things into the water, such as salt, sulfuric acid and the like, once Bo Jue on a whim, he actually put too much salt, he wanted to see if the concentration would produce more hydrogen when the concentration hit, and the electrode used was a graphite rod, he wanted to see if this kind of thing worked better. As a result, he discovered that something had happened, and this time instead of colorless oxygen, a yellowish gas appeared from the anode.

The curious Bo Jue wanted to know what was going on, and then he took a little bit with a small test tube, put it under his nose and sniffed it gently, the result was very tragic, immediately a lot of snot and tears, and then tried to smell it, this time it was even more powerful, snot, tears, and a violent cough, quickly put it down, he didn't dare to try to smell this gas anymore, and at this time he also smelled a strong pungent smell from the water, and quickly took out all the test supplies, All the gases were collected in larger glass bottles and kept under closed management, and the team was warned that no one was allowed to conduct similar experiments until the irritant gas had been thoroughly studied.

Bo Jue created a novel and exciting gas, and he didn't know how to deal with it, so he hurried to find Song Yingxing and Zhu Ling. Song Yingxing and Zhu Ling often listen to Zhu Youxiao instill some new things, so they are not surprised by this phenomenon. Especially Song Yingxing, he is very accustomed to these fresh things, and he often gets some inexplicable things in the experiment, such as when he was refining steel, listening to Zhu Youxiao's words, adding some black ore from Jiangxi, as a result, these steels become very hard, and if you add some other minerals, you can also make the steel very elastic. Song Yingxing took Bo Jue and the green gas he made to Zhu Youxiao, he thought that Zhu Youxiao should be interested in this kind of thing, maybe Zhu Youxiao knew about this thing.

Zhu Youxiao is really interested in this thing, because he knows that this is *, if hydrogen is used to react with it to produce hydrogen chloride, dissolved into water is hydrochloric acid, which is one of the most basic "three acids and two alkalis" in the chemical industry, and has a very wide range of uses, because this kind of thing is a little too much more than this era, and he is not a professional chemical technician, he does not dare to make this kind of thing.

Now Bo Jue has made this thing, it is necessary to conduct basic chemical research, although his chemical knowledge is not too much, he has only studied some in high school, but in this era, he can still teach Bo Jue, so Zhu Youxiao asked Bo Jue to call his team, as well as some of Song Yingxing's students who studied these experiments, formed a special scientific research group, and came to listen to Zhu Youxiao talk about these most basic chemical knowledge.

There are about a dozen students in this small class, and Zhu Youxiao started to explain according to the knowledge he has learned from the natural knowledge textbook of primary school, so that these people can easily understand these very abstract things, because many of them are invisible and intangible, and they must start with the simplest things to arouse their interest.

Zhu Youxiao said: "The most common thing we come into contact with is water, but what is water? Through the electrolysis test, we got two gases, one is a very light gas, we call it 'hydrogen', and the other is a gas that we inhale very comfortably, and feel refreshed, we call it 'oxygen', which is that these two things make up water, and we have also done this experiment, put hydrogen into oxygen and ignite it with a nozzle, and after a while, water vapor will be generated in the test bottle, which can be converted to each other, and the process of changing back and forth, we call it' Chemical reaction', some people ask, that water into water vapor, into ice, is it also called a chemical reaction, that is not a chemical reaction, that is called a physical change, because although its form has changed, its properties have not changed. And the air we breathe, in fact, it is also composed of multiple things, the most thing we call it nitrogen, which accounts for about 78 percent of the air, the second is oxygen, which accounts for a little more than 20 percent, and the other gases are very few, but they all exist, but we can't separate them with the current means. These are basic things, and everyone will understand them as soon as they say it. ”

"Let's talk about Bo Jue's test, Bo Jue used a test made of concentrated salt water, and got this bottle of green gas, and it is very irritating, we call it '*', everyone remember, this * is very toxic, breathe a little more will die, you must be careful when doing experiments in the future, when you encounter unknowable things, it is best to use rabbits or other animals to do the test first, so as not to cause accidents, Bo Jue's test has a certain degree of danger, and you must pay attention to it in the future, Don't act recklessly. In fact, Bo Jue's experiment also produced a kind of thing, but this kind of thing dissolved in the salt water, he didn't find that that kind of thing is a kind of alkali, that is, the caustic soda that everyone often sees, and it is also a very versatile thing. ”

"Let's give some names to some things, give some definitions, such as the names we just took, and some are called 'carbon', 'aluminum', 'copper', etc., and the basic unit of these things is called 'atom', for example, when we see the electrolysis of water, the volume of hydrogen and oxygen is two to one, so we think that water is made up of two hydrogen atoms and one oxygen atom, and by measuring the weight of water and the weight of oxygen, we can approximate the weight of hydrogen. There is also a noun called 'specific gravity' which means relative weight, now we can determine the specific gravity of water with a cubic inch of water, and with this as the standard, we can establish a series of specific gravity tables in the future, but this is a complex and long-lasting work, which requires great labor and a long time, and we may not be able to complete it in our own lives. ”

Zhu Youxiao continued to instill the chemical and physical knowledge he had learned in junior and senior high school like a duck, swallowing dates to these students, although he tried his best to use the most popular language, but most of the students who listened to it were clouds, mountains and fog covers, after all, these are things that have never been heard of. This lecture lasted for about half a year, until most of the students remembered this knowledge very firmly, which was not the end, and countless experiments were carried out during the period, and even Zhu Youxiao himself re-studied the physical chemistry textbook of a high school. Of course, these descriptions are only bound to be compiled into textbooks, but they can only be accessed at the graduate level of Daming Institute of Technology, and as for those foreign scholars, they are kept absolutely secret.

In the past six months, Bo Jue has encountered the world's first delicacy like a starving ghost, almost squeezing the knowledge that Zhu Youxiao knows to the limit, so that Zhu Youxiao has to tell him that a lot of knowledge is not clear to him, and he can only wait for them to study it slowly, even if what he says is sometimes not necessarily correct, and some are even wrong, and you still need to do further verification yourself. However, Zhu Youxiao gave Bo Jue a very good term, called 'Moore', Zhu Youxiao said that as long as any gas has the same volume, they contain the same number of molecules, and asked them to verify, and said that the reward for successful verification is 10,000 taels of silver.

Zhu Youxiao's problem did not last long to be solved, and there were two students who solved this problem, and their methods and theories and experiments were successful, one of them was Bo Jue, and the other was indeed a very famous figure in history - Fang Yizhi.