On that day, after the witch brought He Xin into the secret room and gave her work to make her an heir, Hu Kehao lost contact with He Xin. When the water palace shook and He Xin didn't come out, Hu Kehao panicked. He called out loudly, but no one answered. He walked out of the stone house to look for it, only to see that the path was bent and disoriented. He came to a cave and went inside, only to see a waterfall with cliffs on both sides, towering into the sky. On top of the cliffs, strange rocks are craggy, and scattered plants and trees grow on them.

Hu Kehao was happy in his heart, and wanted to stand under the waterfall to enjoy such a beautiful scenery and feel the momentum of the waterfall's "flying down 3,000 feet", but he just took a few steps and bumped into a soft thing. He pushed it with both hands, and the thing was deformable, very elastic, like plastic. Hu Kehao looked at the waterfall more closely, and felt that it was like a painting seen through a transparent glass, and he couldn't walk over to feel it. Several fish swim in front of the waterfall, as if there is water in front of the waterfall, and there are fish swimming in the water. Since the waterfall is water, and the fish swim in the water in front of the waterfall, and they do not interfere with each other, is the waterfall and the water in which the fish swim not on the same plane? Hu Kehao observed the waterfall and the fish swimming in the water from different angles, and he finally made an astonishing discovery: he was now in a bubble at the bottom of Qinglong Pond, that is, the entire Qinglong Pond Water Palace was in a bubble. The fish that Hu Kehao saw were fish swimming in the lake outside the bubbles, and the waterfall was a waterfall that flowed down the cliff above the lake.

It turned out that in the early days of the formation of Qinglong Pond, Shakyamuni Buddha narrowed the orbital radius of the outer electrons of the hydrogen and oxygen nucleus around the nucleus, leaving a part of the space for "Pudu sentient beings" that were not filled with "water". This space is a big bubble, and the water palace of Qinglong Pond is located in it.

This is not surprising, scientists speculate that the universe may not be the only one. Like a bunch of soap bubbles, each bubble is a universe, and the collection of many universes forms a multiverse. Buddhism once predicted the existence of 3,000 worlds, which is very consistent with the current astronomical observations. The universe we live in may actually be just one of a giant multiverse. Each universe is like a soap bubble within a vast multiverse space, born and expanding from its own Big Bang event. All the universes make up a cosmic "bubble", each bubble is a universe, and in each such universe, the basic physical parameters such as the strength of gravity and the strength of atomic binding forces are different.

After the bubble is formed, the stability is not strong. The Buddha introduced different creatures such as the scales and feathers, and built a rich and diverse production system to enhance the stability of the bubbles. At that time, there were no villages around Qinglong Pond, which was a pool of stagnant water, which only relied on evaporation and precipitation to exchange materials with the outside world. Later, someone passed by Qinglongtan, was very thirsty, drank the water inside, and unfortunately died of poisoning. Because the atomic structure of the water in Qinglongtan has changed, the volume of the water has decreased, the density has increased, and it has become a foreign water and cannot be drunk. There is a type of water in nature called heavy water, which is a compound composed of deuterium and oxygen. Deuterium is an isotope of hydrogen, and their properties differ very little, so heavy water and ordinary water are also similar. Since there are two isotopes of hydrogen in the molecule of heavy water, which has one neutron per each of the ordinary hydrogen atoms, the mass of the heavy water molecule is heavier than that of ordinary water. Heavy water can be used as a moderator in the fission reaction of atomic nuclei, and if humans and animals drink heavy water, it will cause death. Citing heavy water, it can poison people to death, not to mention the alien water in Qinglong Pond where the radius of electrons around the nucleus has changed?

The original intention of the Buddha to create the foreign water was to squeeze out a space from the water, forming a bubble at the bottom of the pool to purify sentient beings, and now some people drink the foreign water in the pool but are poisoned to death. Later, gradually some people moved from other places to settle near Qinglongtan, and more and more water for production and domestic use, Qinglongtan water is no longer an isolated system, and it is necessary to constantly exchange materials and energy with the water of nearby villages. In order to ensure the safety of the villagers' lives and property, the Buddha took back most of the foreign water in the Qinglong Pond, and only left a layer of water film above the bubbles at the bottom of the Qinglong Pond to protect the bubbles, and above the water film is the ordinary water that the villagers can use in production and life. The water film formed by this alien water acts as a boundary layer, separating the bubbles from ordinary water, and the bubbles contain water palaces, forming a colorful world. The density of heterowater is greater than that of ordinary water, and it has unique physical and chemical properties, especially the interfacial tension between the bubble and the bubble is very low, and it has strong surface film strength, which improves the stability of the bubble.

Hu Kehao is now at the dividing line between bubbles and different water, and in front of him is a high-strength liquid film formed by different water, unable to get out, and even if he goes out, he will be soaked in water. He returned along the road, came to the entrance of the cave, and found Uncle Bai of Huang Jueya, who had the intimacy of 'meeting old acquaintances in a foreign country', and asked, "Uncle Bai, why are you here too?" ”

"I told you that I am studying in the Qinglong Pond Water Palace, and this cave is my cultivation ground." Uncle Bai replied.

Uncle Bai asked Hu Kehao how he was here. Hu Kehao told him and He Xin about fishing, falling into the pool, encountering the old woman, and shaking the water palace. Uncle Bai knew the ins and outs of the whole thing after listening to it, and he told Hu Kehao that the witch had He Xin as the heir, and that the king of Tan ordered the spell to burn the Ding steaming water, and said to him: "The purpose of your coming to the water palace is to pay homage to the king of Tan and ask him for rain." ”

"He Xin and I fell into the hands of a witch after falling into a waterhole, and we couldn't contact you or find our way to the Water Palace." Hu Kehao said.

"Dading has been burning for seven days, and the water level of Qinglong Pond has dropped. The temperature in the nearby towns has risen by two degrees, and the heat is unbearable. Forty-nine days later, I feared that the surrounding villages would be scorched. Without further ado, now I will take you to the Water Palace to pay homage to the King of Tan. Uncle Bai said.

In fact, after the water boils, it only absorbs heat during the vaporization process, but the water temperature remains the same. From a scientific point of view, when boiling, the inside and surface of the water at the same time intense vaporization, the absorbed heat is used to increase the potential energy of the molecule, without increasing the kinetic energy of the molecule, so that the water changes from liquid to gaseous, and the kinetic energy of the molecule does not increase, so the temperature remains unchanged. By analogy, the temperature of the water in Qinglong Pond will stop when it rises to a certain height, and the water temperature will not rise all the time. The heat from the pool water is then diffused into the air, and the temperature in the nearby towns and villages has risen to a limited extent, but it is certainly hotter than before.

Hu Kehao suddenly thought of a terrible thing, the Tan King's burning Ding steaming water may be killing himself. This is because in the process of firing the tripod, the temperature of the pool water is rising, the evaporation of water from the liquid film will be intensified, the liquid discharge speed will be accelerated, the viscosity of the surface of the liquid film will be reduced, and the stability of the bubbles will decrease. On the other hand, after the evaporation of the pool water, the salinity (the concentration of inorganic ions in the pool water) will increase, which strengthens the compression effect of the electric double layer of the liquid film, increases the number of micelle aggregation, and decreases the stability of bubbles. The king of Tan, the witch, and the white master in front of him only know some spells or witchcraft, where do they know these scientific truths?

Hu Kehao explained these basic principles to Uncle Bai, and Uncle Bai seemed to understand whether he understood or not, but he felt that Comrade Xiao Hu was very reasonable, and asked him to use these principles to persuade the king of Qinglongtan to stop the current absurd actions and implement rain. If you want to convince the king of Qinglongtan, you must be justified. Hu Kehao needs to prepare some experimental equipment and personally demonstrate it to King Tan at that time, so as to convince him.

"Now I need to go to the ground to find some experimental materials, but the liquid film of this bubble is too thick, I can't go out." Hu Kehao said to Uncle Bai.

"Don't worry, I've got you covered. I will carry you out, and you will put on the snake clothes I gave you, so that you can avoid the water. After Uncle Bai finished speaking, he turned into a dragon, and Hu Kehao sat on the dragon. Jiaolong let out a long roar, flew upward, penetrated the bubble liquid film, and entered the water of Qinglong Pond. During Hu Kehao's ascent, the pool of water that the snake clothes touched avoided one after another, leaving a gap in the air for him to breathe. Jiaolong rose to the surface of the water in a moment, close to the shore, and Hu Kehao landed safely.