Rex got busy.

In the blink of an eye, Rex has been in the main city of Gilneth for three days, during these three days, Rex is very busy, ordinary people can't see Rex at all, even if it is Gwen Allen, it is not easy for these two people to see Rex, Rex's whereabouts are too weird, can only be described as elusive.

In the past few days, the situation in the old land of Gilneth is improving, and with a steady stream of material support, a disaster has become a paper tiger.

In order to stabilize the dìng, King Jean was ruthless, and all the materials that Rex obtained from Kael'thas were sent to the main city of Gilnes with a wave of King Jean's hand.

Although the supplies have not yet arrived, the news has arrived, which makes Rex's worries about the old land of Gilneth disappear, and with the storage of this batch of materials, there will be no problems in the old land of Gilnis.

That's why there's this scene in front of us, and Rex is investigating the root cause of the heavy snow.

The root cause of the snow, every qiē has a scientific basis, and Rex digs deep into the memories in his mind.

About the original of the snow, this memory Rex has, in the textbooks of elementary school, the change of the weather, why it rains or snows, there are explanations, after Rex crosses, the perverted memory, the brain is like a computer, and the memory is like a text, all stored in the zài brain, as long as Rex calls, so there is no difficulty at all.

After thinking about it for a while, this memory was called up by Rex.

Clouds are made up of many small water droplets and Xiaoice crystals, and raindrops and snowflakes are formed by the growth of these small water droplets and Xiaoice crystals.

In the clouds of water. Cloud droplets are all small droplets. They mainly grow into raindrops by continuing to condense and colliding with each other.

Ice clouds are made up of tiny ice crystals. These Xiaoice crystals when they collide with each other. The surface of the ice crystals will heat up and melt somewhat, and they will stick to each other and freeze again. This is repeated many times, and the ice crystals increase.

In addition, there is also water vapor in the clouds, so the ice crystals can continue to grow by condensation. However, ice clouds are generally high and not thick, where there is not much water vapor. The growth of condensation is very slow, and there are not many opportunities for collision with each other, so it cannot grow to a large size and form precipitation. Even if precipitation is caused, it tends to be evaporated on the way down and rarely reaches the ground.

The record of memory is extremely detailed, which Rex is grateful for nine years of compulsory education, he has been of great help to Rex, although there are many things, in the life of the previous life because of the age so they have been forgotten, but this moment is different. Rex only needs to think about it carefully to discover knowledge that is useful to him.

This knowledge has been of great help to Rex. If you want to search for this heavy snow, whether it is man-made, one important point is how the snow is formed.

In the world of Azeroth, there is no research in this aspect, the world of Azeroth is not without technology, but this technology is only a derivative of war, all directions are the pursuit of weapons, the pursuit of power, and there are not many places to use other aspects, which is why the productivity of the world of Azeroth is not high, the population is still low, and there is no flooding.

The main form of each world is different, and the final development direction is also different, in the world of Azeroth, there are professionals, this magical power, technology in addition to making weapons, there is very little use in life, the most fundamental reason is that there is no time.

Sitting on top of a snowdrift and looking at the snow-capped Gilneys, Rex continued to think about the formation of the snow, and a message kept flashing in his mind.

The most conducive to cloud growth is hybrid cloud.

Hybrid clouds are made up of Xiaoice crystals and supercooled water droplets.

While a mass of air is said to be saturated with ice crystals, it is not yet saturated with water droplets. At this time, the water vapor in the cloud condenses on the surface of the ice crystals, while the supercooled water droplets are evaporating, and the ice crystals 'adsorb' water vapor from the supercooled water droplets occurs. In this case, the ice crystals grow quickly. In addition, supercooled water is very unstable.

As soon as you touch it, it freezes. Therefore, in a mixed cloud, when supercooled water droplets collide with ice crystals, they freeze and stick to the surface of the ice crystals, causing them to grow rapidly. When the Xiaoice crystals grow large enough to overcome the resistance and buoyancy of the air, they fall to the ground, which is called snowflakes.

The reason for the formation of the snow has been known to Rex, and the next thing is to observe carefully when it snows, and see if it is a natural formation, or if it is facilitated by other forces.

The weather in Gilneth's old land, except for the day when Rex came, was sunny, and the weather was not very good for the other days, especially today, from Rex's perspective of looking up at the sky, he could clearly see the black clouds in the sky, and the whole land was relatively dim, this was a cloudy day, and the accumulated black clouds in the sky were also telling Rex, snow, and it was about to fall.

"Your Highness, report urgently!" A guard riding a mount, galloping towards Rex, before and after coming to Rex, he turned over and dismounted, a beautiful jump, directly landed on the ground, his legs slightly bent, strode a few steps, and shouted loudly.

"Gianna has arrived?" Rex saw someone coming and said in a deep voice.

Rex said this sentence, but also has a particular point, as early as when Rex came to the old land of Gilneis, he received the news that Gianna found Egwen and was planning to come to Gilness, and Rex spent a few days on the road, and stayed in Gilness for a few more days, a lot of time before and after, but compared to coming to the Eastern Kingdom from the Kalimdor continent, this time is still not enough.

However, this is based on the fact that Gianna and the two are traveling by boat, which takes a little longer, but excluding taking a boat, coming to the Eastern Kingdom from the Kalimdor continent, but there are many ways, the easiest one is to take a boat, a goblin caravan, happy to serve, get on the ship in Ratchet City, you can reach the treasure bay, and the second way is to use the portal.

This method is very fast, and it can eliminate the waste of a lot of time on the ship, but the only hard requirement to use the portal is to have a certain identity, in order to resist the invasion of the Burning Legion, the alliance army traveled from the Eastern Kingdom to the fixed portal in Kalimdor, and did not destroy the fixed portal because of the victory in the war.

The cost of building this fixed portal is not small, and if it is destroyed, it will be too wasteful, so both the Alliance and the Night Elves have kept it by default.

For more than half a year, this fixed portal is still open, but it has not been used on a large scale, and the Night Elves have restricted this aspect, and ordinary people cannot use it, but Gianna is obviously not among the restrictions.

With Gianna's ability, she hasn't come for so many days, which is considered slow, Gianna can directly use the portal to reach the territory of the Night Elves, and then use the fixed portal to reach the Eastern Kingdom, which is half a day before and after, and it has taken so many days so far, that is for other reasons.

"Gianna and they have arrived in the main city of Gilneth and are looking for His Highness, and the Lord of Allen has asked me to send me to ask His Highness to return," the guard spoke.

"You go back and report first, and I'll be there soon," Rex waved off the guards and got up from the snowdrift.

Gianna's question reminded Rex of the fixed portal, the fixed portal has been stuck by the Night Elves, which makes Rex feel a pity, you must know that this fixed portal, the current use of the human limit, which hinders the development of the main city of Lordaeron, with the fixed portal is not far from the main city of Lordaeron, if the fixed portal can complete the important task of communicating the two continents, then the prosperity of the main city of Lordaeron will definitely be on a higher level.

This is also what Rex considered when he established the fixed portal, using the fixed portal to promote the prosperity of the two continents.

Rex's calculations are good, but the Night Elves are not good.

Because of their obstruction, so now it can't develop, the caravan can't go freely, this half a year, although Rex feels pity, but also did not take any action, in the Hyjal Holy Mountain, the Night Elves have not been staying for long, the Night Elves have been building the main city in the Hyjal Holy Mountain, because of the existence of the World Tree, the Night Elves mainly rely on the World Tree, but now that the World Tree is finished, it has been destroyed by Akmund, and the Night Elves will definitely not stay in the Hyjal Holy Mountain for a long time, In the original history, the Night Elves eventually retreated somewhere else.

This is also the reason why the Night Elves have made a World Tree again, the environment of the Hyjal Sacred Mountain, is also a factor to be considered, the current environmental remediation of the Hyjal Sacred Mountain is gradually changing, and the pollution caused by the demons has begun to be reflected in the Hyjal Sacred Mountain, and because of the weakness of the space, there are monsters in the distorted void from time to time to visit, and suddenly they are killed in the Hyjal Sacred Mountain, and the Night Elves suffer greatly.

For most of the year, in the information obtained by Rex, the Night Elves had already proposed to relocate more than once, but each time there was no follow-up. Forced down by Tyrande.

Walking down the snowdrift, Rex thought about things while walking towards the main city of Gilneis, and suddenly Rex stopped his steps, and a trace of wetness appeared on his face,

It's snowing. (To be continued......)