Chapter 503 - Yin to Yang (II)

Not only the red silk, under my yin-yang technique, I saw thistle Yang, who sat quietly in the center of the tomb, covered with that red silk. It was an artifact, or a weapon, left to him by his former comrade-in-arms, the matriarch of the Yin and Yang family. And at this moment, the red silk fluttered and extended, filling the entire burial chamber, and the ice cubes were also reflected in the fiery red. Ji Ziyang closed his eyes, as if he was a god who had left behind and was independent.

Just when we were surprised, the ice in the tomb began to melt faster than I could have imagined, like ice cream on top of a charcoal fire, and the ice melted quickly.

I felt something cold on my face, and I was about to reach out and touch it, only to find that it was starting to rain in the burial chamber and the corridor where we were. To be precise, this is not as simple as rain, it should be said to be water, I have never seen such a heavy rain, it is like pouring water down with a huge bucket, I feel that everyone is as surprised as I am, the red silk, turned into fiery red ice, the sudden heavy rain, just in an instant, we all turned into soup chickens. Being poured by the heavy rain, everyone seemed to be like me, and they were stunned for a moment.

"Is this artificial rain?" Being poured by the rain like this, Dazhe also came to his senses.

"Artificial precipitation, according to the principle of precipitation formation in nature, artificially supplements certain necessary conditions for the formation of precipitation, and promotes the rapid condensation or collision of cloud droplets and increases into raindrops and falls to the ground. According to the physical characteristics of different cloud layers. Choose the right time to use airplanes and rockets to spread catalysts such as dry ice, silver iodide, and salt powder into the clouds. Precipitation or increase precipitation in the clouds to relieve or alleviate drought in farmland, increase irrigation water or water supply capacity of reservoirs. or increase the amount of water generated by electricity, etc. Using the physics principles of clouds and precipitation, by sprinkling rainfall agents into clouds, such as salt powder, dry ice or silver iodide, etc., cloud droplets or ice crystals enlarge to a certain extent and fall to the ground to form precipitation, also known as artificial precipitation. Methods of dissemination include aircraft scattering in the clouds, anti-aircraft guns or rockets shooting silver iodide shells into the clouds to explode, and burning silver iodide flames on the ground. It is the most widely conducted weather modification experiment.

The microphysical process of artificially influencing clouds can cause clouds that cannot precipitate naturally under certain conditions, or clouds that have a large water supply and can often precipitate naturally. Increase precipitation by improving precipitation efficiency. However, clouds that do not precipitate naturally can provide less water, so the economic value of artificial catalysis is limited. Generally, under the condition that natural clouds have already precipitated or are close to precipitation, the method of artificial precipitation can play a role. But fatty, do you really think our current conditions are in line with artificial rainfall? Yun Ximing said.

"Isn't everything possible?" Dazhe still said unconvinced.

"When water is exposed to sunlight, it becomes water vapor and evaporates into the air. When water vapour meets cold air at high altitude, it condenses into small water droplets. They are small and light, held in the air by updrafts in the air. It was these small droplets of water that gathered in the air to form clouds. It mainly relies on two means, one of which is condensation and condensation increase. The second is to rely on the collision and increase of cloud droplets. In the early stage of raindrop formation, cloud droplets mainly rely on the continuous absorption of water vapor around the cloud body to condense and condense themselves. If the water and gas energy sources in the cloud are constantly supplied and replenished, so that the surface of the cloud droplets is often in a supersaturated state, then. This process of condensation will continue, causing the cloud droplets to grow and become raindrops. But sometimes there is a limited amount of water vapor in the cloud, in the same cloud. Moisture is often in short supply, so it is impossible to make each cloud drop grow into a larger raindrop, and some smaller cloud droplets have to be merged into larger cloud droplets. If there is a coexistence of water droplets and ice crystals in the cloud. Then, this process of condensation and condensation will be greatly accelerated. When the droplets in the cloud increase to a certain extent. Due to the increasing volume and weight of large cloud droplets, they are not only able to catch up with the smaller slower droplets during their descent. And it will swallow up more small cloud droplets and make itself stronger. When the large cloud droplets grow larger and larger, and finally the air can no longer support them, they fall straight from the clouds to the ground, becoming our common rain. According to this statement, what we have just encountered is more likely to be a process of natural rainfall. Yun Ximing said.

"What do you mean? Do you mean that it rained in our tomb, just now, ourselves? Dazhe asked in surprise.

"It stands to reason that way." Yun Ximing said, "There are four types of rain in nature, convective rain, topographic rain, typhoon rain and frontal rain. Convective rain refers to the rain formed by the local heating of the air near the ground or the strong cooling of the upper air, resulting in the convection of the upper and lower air, causing the lower air to rise, and the water vapor to cool and condense at the high altitude. Intense convective rain can be accompanied by strong winds, thunder, hail, rain or tornadoes, but the rain is shorter and the rain area is smaller, or it is distributed in discontinuous strips. Sometimes there is convective rain in the middle of continuous rain. This is due to the fact that at this time, the stratiform rain clouds in the sky are sandwiched with strong convective cumulonimbus clouds, forming a mixed layer of rain clouds. Convective clouds have significant regional, seasonal and diurnal variations. Convective rain dominates the equatorial zone throughout the year. The areas with the most convective rain in China are Hainan Island and Nanling Mountain, and in terms of season, summer is the most, followed by spring and autumn. In terms of diurnal variation, it mostly occurs in the afternoon to evening on land, and at night in the sea and basin areas. There is less convective rain on the ocean than on the mainland. ”

"Topographic rain refers to the rain formed when the moist air mass advances, encounters the obstruction of high mountains, and the air flow is forced to rise slowly, causing adiabatic cooling and condensation. Most of the topographic rain falls on the windward slopes, while the lewward slopes are adiabatic warming caused by air subsidence, which reduces cloud cover and rainfall. Topographic rain tends to increase with the height of the terrain. Terrain rain is generally not very strong if it is not combined with convective rain or cyclonic rain. In the world, the rainiest places often occur on the windward slopes of mountains, called rain slopes; The leeward slope receives very little precipitation and becomes a dry slope or rain shadow area. ”

"Typhoon rain is rain brought by storms in tropical oceans. These storms are composed of unusually strong hot and humid air masses in the ocean, and the torrential rain that can reach hundreds of millimeters at a time can easily cause disasters where the typhoon passes. It is called typhoon rain. Typhoons bring high winds and rainfall. There is a certain pattern in the typhoon cloud system, and the precipitation in the typhoon is also distributed over the ocean, but after the typhoon landfalls, it is not so regular due to the friction of the terrain. For example, there is precipitation in the entire vortex area where there is an updraft in the wind, but the precipitation is the largest in the cloud wall area with the strongest upward movement, and the precipitation in the spiral cloud belt has decreased, and sometimes heavy rain is formed, and the airflow in the eye area of the typhoon sinks, and there is generally no precipitation. ”

"Frontal rain refers to the fact that when the front is active, the warm and moist airflow is rising during the rising process, due to the continuous decrease in temperature, the water vapor will cool and condense, and the clouds will cause rain, this kind of rain is called frontal rain. Fronts are often accompanied by cyclones, so frontal rain is also called cyclonic rain. There are systematic cloud systems on fronts, but not every type of cloud produces precipitation. When two air currents with different properties meet, the interface between them is called a front. On the front, warm, wet, lighter air is lifted above the colder, drier, heavier air. In the process of lifting, the water vapor in the air cools and condenses, and the precipitation formed is called frontal rain. Frontal rain is mainly produced in Nimbostratus clouds, in the frontal cloud system Nimbostratus is the thickest, and it is a kind of mixed cloud formed by the handover of cold and warm air, the upper part is ice crystals, the lower part is water droplets, and the middle part often coexists with ice and water, which can quickly cause the collision effect, because the thickness of the cloud is large, and the cloud droplets pass a long distance in the process of rushing and merging, which is conducive to the increase of cloud droplets, and the bottom of the Nimbostratus is close to the ground, and the raindrops are not easy to be evaporated in the process of descending, which is very conducive to the formation of precipitation. The thicker the rain layer and the closer the cloud base is to the ground, the stronger the precipitation. Altostratus clouds can also produce precipitation, but Cirrostratus clouds generally do not precipitate. Because Cirrostratus clouds are thinner, the base is far from the ground, and the water content is small, even if raindrops fall, it is not easy to reach the ground. "Yun Ximing gave us another geography lesson.

"The temperature we had here just now was extremely cold and then extremely warm, so a front was formed, so what we might encounter was frontal rain." Yun Ximing said, and while saying it, he also teased his hair handsomely.

"When you're done, look at the center of the tomb, don't talk about it like popular science knowledge." Arrow said impatiently.

We all looked at the middle of the tomb and found that the red silk was moving slowly and regularly, and the center of the red silk actually showed the shape of a gossip. You can't see Ji Ziyang, only I can see it, at this time Ji Ziyang is sitting in the center of the ground, there is an ancient pattern on his forehead faintly emerging, it is a pattern that I have never seen, he closed his eyes, and is using his spell to control those red silks, quickly melting the surrounding ice. The heavy rain continued on our side, and the ground had merged into a small lake, but the water had all flowed in one direction, allowing me to see the exit to the next place.

"What's going on? What exactly are these red silks? Yun Ximing said.

"There is a treasure in ancient times, a red silk, cut to regenerate, with the person's mind to become longer and shorter, used to bind the enemy, release spells, do you know what this treasure is?" Arrow said.

"Yes, Aya Chaotian?!" Uncle Lu said.

"Yes, this Chaotian Aya is a treasure that has been passed down from generation to generation by Ji Ziyang and their family." Arrow said.

"So, it's the ghost puppet seniors who saved us now?" Dazhe said.

"Not bad." Arrow replied.

"Alas, someone still said what kind of natural rainfall, it's really laughing to death." Dazhe began to make fun of Yun Ximing again, and now Yun Ximing's expression is an embarrassment with a capital letter.

"How the hell did he do it?" Yun Ximing asked.

"For people in the Yin and Yang family, there are only two kinds of bodies, Yin or Yang." Arrow replied. (To be continued.) )