Chapter 1018 (1/2)

Chen Hui has never felt Qi, and he doesn't know what it's like to feel Qi.

Besides, Chen Hui only knows about air!

Air is the ”living gas” that human breathe every day. It covers the surface of the earth in layers, transparent, colorless and tasteless. It is mainly composed of nitrogen and oxygen, which has an important impact on human survival and production.

Air is actually a mixture of gases in the atmosphere, so air belongs to a mixture, which is mainly composed of nitrogen, oxygen, rare gases (helium, neon, argon, krypton, xenon, radon, gas Austria), carbon dioxide and other substances (such as water vapor, impurities, etc.).

The composition of air is not fixed. With the change of height and air pressure, the composition of air will change.

But for a long time, people always thought that air was a single substance, until later, French scientist Lavoisier first came to the conclusion that air was composed of oxygen and nitrogen through experiments.

At the end of the 19th century, scientists found that there were helium, argon, xenon and other rare gases in the air through a large number of experiments.

One of the most fundamental characteristics of air is that it is colorless and tasteless in its natural state.

”How do you know Qi in your practice?” Chen Hui couldn't help looking at Shangguan Ruyun and asked this question.

”The Qi of heaven and earth.” Shangguan Ruyun replied.

Chen Hui nodded, saying that the so-called place of weather in practice should be the air recognized by modern people.

However, the air is composed of so many gases. How do people in practice know the Qi of heaven and earth?

In other words, is there a subdivision of the Qi of heaven and earth in practice?

When Chen Hui thought of this question, he immediately asked, ”modern knowledge has shown that air is a mixture of many kinds of gases, and the composition of air is not fixed. The Qi of heaven and earth recognized by people in your practice should be air. Do you have a more detailed division of the Qi of heaven and earth?”

”Pure Qi, turbid Qi, true Qi!” Shangguan Ruyun replied: ”is this division enough?”

Although Chen Hui hasn't been in touch with Shangguan Ruyun for a long time, she has already discussed many questions with Shangguan Ruyun. Knowing Shangguan Ruyun's unfriendly answer means that she is impatient. At the same time, it also means that her answer is not necessarily accurate.

”I'm really asking you this seriously.” Chen Hui said: ”as for such a big reaction?”

”In practice, people's cognition is different from that of ordinary people.” Shangguan Ruyun, with patience, replied: ”the answer I gave you is enough. True Qi is the foundation of people's practice. Turbid Qi is something people should abandon. As for Qingqi, you should know it very well. After all, it is also mentioned in Taoist classics that Qingqi rises, and Qingqi is considered to be a useful kind of people in practice.”